Moog serioes Flo-Tork rotary actuators

ROTARY 

ACTUATORS 

IMAGINE A WORLD WHERE YOUR CRITICAL 

SERVICE ACTUATION PROBLEMS ARE SOLVED

A SERIES 

SINGLE RACK, FULL FEATURE PNEUMATIC 

ROTARY ACTUATORS 

A SERIES OHIO OSCILLATOR 

HIGH TORQUE, PNEUMATIC ROTARY ACTUATORS 

STANDARD MODELS AND OPTIONS 

P SERIES 

HIGH TORQUE, DOUBLE RACK PNEUMATIC 

ROTARY ACTUATORS 

HYDRAULIC SERIES 

HEAVY DUTY, SINGLE AND DOUBLE RACK 

HYDRAULIC ROTARY ACTUATORS 

HYDRAULIC SERIES OHIO OSCILLATOR 

HEAVY DUTY, SINGLE AND DOUBLE RACK 

HYDRAULIC ROTARY ACTUATORS 

2 M O O G F L O - T O R K

HH HYDRAULIC SERIES OHIO OSCILLATOR 

EXT RA LARGE HYDRAULIC ROTARY ACTUATORS 

BUILT TO CUSTOMER SPECIFICATIONS 

MEGATORK 

EXT RA LARGE HYDRAULIC ROTARY ACTUATORS BUILT 

TO CUSTOMER SPECIFICATIONS 

SERIES M 

CUSTOM PNEUMATIC AND HYDRAULIC ACTUATORS 

DESIGNED TO SPECIFIC OEM REQUIREMEN TS 

SPEC-TORK 

CUSTOM PNEUMATIC AND HYDRAULIC ACTUATORS 

DESIGNED TO SPECIFIC OEM REQUIREMEN TS 

M O O G F L O - T O R K 3

T A B L E O F C O N T E N T S 


D E S C R I P T I O N 

P A G E 

LINE SUMMARY 3 

TABLE OF CON TEN TS 4-5 

A SERIES PNEUMATIC-FEATURES AND OPTIONS 6 

A SERIES PNEUMATIC-ENVELOPE DIMENSIONS 7 

A SERIES PNEUMATIC-TYPICAL PERFORMANCE 8 

A SERIES PNEUMATIC-END CAP OPTIONS 9 

A SERIES PNEUMATIC-MOUN TING OPTIONS 10 

A SERIES PNEUMATIC-SHAFT OPTIONS 11 

A SERIES PNEUMATIC-POSITION IDEN TIFICATION AND PORTING 12 

A SERIES PNEUMATIC-HOW TO ORDER 13 

A SERIES OHIO OSCILLATOR PNEUMATIC-FEATURES AND OPTIONS 14 

A SERIES OHIO OSCILLATOR PNEUMATIC-ENVELOPE DIMENSIONS 15 

A SERIES OHIO OSCILLATOR PNEUMATIC-TYPICAL PERFORMANCE 16 

A SERIES OHIO OSCILLATOR PNEUMATIC-END CAP OPTIONS 17 

A SERIES OHIO OSCILLATOR PNEUMATIC-MOUN TING OPTIONS 18 

A SERIES OHIO OSCILLATOR PNEUMATIC-SHAFT OPTIONS 19 

A SERIES OHIO OSCILLATOR PNEUMATIC-POSITION IDEN TIFICATION AND PORTING 20 

A SERIES OHIO OSCILLATOR PNEUMATIC-HOW TO ORDER 21 

P SERIES PNEUMATIC-FEATURES AND OPTIONS 22 

P SERIES PNEUMATIC-ENVELOPE DIMENSIONS 23 

P SERIES PNEUMATIC-TYPICAL PERFORMANCE 24 

P SERIES PNEUMATIC-HOW TO ORDER 25 

HYDRAULIC SERIES-FEATURES AND OPTIONS 26 

HYDRAULIC SERIES-ENVELOPE DIMENSIONS 27 

HYDRAULIC SERIES-TYPICAL PERFORMANCE 28 

HYDRAULIC SERIES-END CAP OPTIONS 29 

HYDRAULIC SERIES-MOUN TING OPTIONS 30 

HYDRAULIC SERIES-SHAFT OPTIONS 31 

HYDRAULIC SERIES-POSITION IDEN TIFICATION AND PORTING 32 

HYDRAULIC SERIES-HOW TO ORDER 33 

4 

M O O G F L O - T O R K 

T A B L E O F C O N T E N T S


D E S C R I P T I O N 

P A G E 

HYDRAULIC SERIES OHIO OSCILLATOR-FEATURES AND OPTIONS 34 

HYDRAULIC SERIES OHIO OSCILLATOR-ENVELOPE DIMENSIONS 35 

HYDRAULIC SERIES OHIO OSCILLATOR-TYPICAL PERFORMANCE 36 

HYDRAULIC SERIES OHIO OSCILLATOR-END CAP OPTIONS 36-37 

HYDRAULIC SERIES OHIO OSCILLATOR-POSITION IDEN TIFICATION AND PORTING 38 

HYDRAULIC SERIES OHIO OSCILLATOR-SHAFT OPTIONS 39 

HYDRAULIC SERIES OHIO OSCILLATOR-MOUN TING OPTIONS 40 

HYDRAULIC SERIES OHIO OSCILLATOR-HOW TO ORDER 41 

HYDRAULIC HEAVY DUTY SERIES OHIO OSCILLATOR-FEATURES AND OPTIONS 42 

HYDRAULIC HEAVY DUTY SERIES OHIO OSCILLATOR-ENVELOPE DIMENSIONS 43 

HYDRAULIC SERIES HEAVY DUTY OHIO OSCILLATOR-TYPICAL PERFORMANCE 44 

MEGATORK SERIES OHIO OSCILLATOR 45 

MEGATORK SERIES-FEATURES AND OPTIONS 46 

MEGATORK SERIES-APPLICATION 47 

MEGATORK SERIES-TYPICAL PERFORMANCE 48 

SPEC-TORK SERIES-ROTARY ACTUATOR DESIGNS FOR SPECIAL APPLICATIONS 49 

DIMENSIONS-CUSHIONS AND ST ROKE ADJUSTORS 50 

UNIT WEIGHTS 51 

DIMENSIONS-CUSHIONS AND ST ROKE ADJUSTORS 52 

UNIT MASS 53 

APPLICATION EXAMPLES, ROTARY MOTION 54 

QUAN TITIES AND FORMULAS FOR ROTARY MOTION 55 

MOMEN T OF INERTIA AND CUSHION DATA 56 

CUSHION CAPACITY AND SIZING 57 

LINEAR DRIVE 58 

FT HYDRAOLIC 59 

OO HYDRAOLIC 60 

APPLICATION SPECIFICATION GUIDE 61 

WAR RAN TY 62 

NOTES 63 


T A B L E O F C O N T E N T S M O O G F L O - T O R K 

5

P N E U M A T I C R O T A R Y A C T U A T O R S 

A S E R I E S 

Bearings 

l PRE-LUBRICATED - BRONZE OR ROLLER TYPE 

l HIGH LOAD CAPACITY, LOW FRICTION 

End Caps 

l CORROSION 

RESISTANT 

ALUMINUM 

Housings 

l HIGH STRENGTH ALUMINUM OR DUCTILE IRON 

l OPTIONAL MOUNTING SURFACES 

Pinion Shaft 

l WORK HARDENED STEEL 

l RUGGED ONE-PIECE 

CONSTRUCTION 

l SINGLE TOOTH 

LOAD CAPACITY 

l OPTIONAL 

CUSHIONS & 

ADJUSTORS 

Cylinder 

l HEAVY WALL 

TUBING 

l PRECISION 

HONED BORES 

Pistons 

Gear Chamber 

l LIFETIME LUBRICATED 

Tie Rods 

l PRE-STRESSED STEEL ALLOY 

Gearing 

l LARGE RACK BEARING SUPPORT AREA 

l PATENTED 

FLOATING DESIGN 

l BLOCK V SEALS 

l ELASTOMER SEALED 

l PRECISION ROLLED THREADS 

l SINGLE TOOTH LOAD CAPACITY 

A1 0 0 0 T I E R O D D E S I G N S H O W N 

D E S I G N F E A T U R E S 

S T A N D A R D O P T I O N S 

l HIGH PRESSURE - 8.62 BAR MAX. 

l TORQUE RANGE - 11.29 TO 1130 NM @ 7 BAR 

l STANDARD ROTATIONS - 94, 184, 364 DEGREES 

l BSPP PORTS 

l RACK & PINION - HIGH MECHANICAL EFFICIENCY 

l ZERO LEAKAGE - HIGH VOLUMET RIC EFFICIENCY 

l PRECISION BEARINGS - HIGH LOAD CAPACITY, 

LOW FRICTION 

l PISTON SEALS - BLOCK-V 

l ADJUSTABLE CUSHIONS 

l ST ROKE ADJUSTORS 

l END PORTS OR SIDE PORTS 

l MOUN TING VARIATIONS 

l SHAFTING VARIATIONS 

l CUSTOMER SPECIFIED ROTATIONS 

l CUSTOM SEALING AR RANGEMEN TS 

l SPECIAL COATINGS 

l GEARING - SINGLE TOOTH FULL LOAD CAPACITY 

l OPERATING TEMPERATURE - - 18 0 TO 93 0 C 

l A100 & A500 - EXT RUDED ALUMINUM HOUSING 

-HARD COAT ANODIZED 

6 


A S E R I E S

E N V E L O P E D I M E N S I O N S 

M O D E L S A1 0 0 A N D A 5 0 0 

A S E R I E S 

M O D E L A1 0 0 0 

M O D E L S A 4 0 0 0 A N D A1 0 0 0 0 

A B C E F G H J K 

MODEL ROTATION 

NUMBER DEGREES mm mm mm mm mm BSPP mm mm 

94º 111.00 M6 X 1 

12.66 3.18 

A100 184º 140.97 63.50 63.50 X G 1/4” - 19 44.45 44.45 X 

12.70 19.05 

364º 200.66 8DP 

94º 180.59 M6 X 1 

22.23 4.76 

A500 184º 244.60 92.20 92.20 X G 1/4” - 19 69.85 69.85 X 

22.25 92.08 

364º 372.11 13DP 

94º 256.03 M8 X 1.25 

25.40 6.35 

A1000 184º 335.79 120.65 146.05† X G 3/8” - 19 63.50 127.00 X 

25.45 120.65 

364º 468.38 16DP 

94º 354.33 M12 X 1.75 

44.45 9.53 

A4000 184º 481.58 184.15 177.80† X G 3/8” - 19 95.25 95.25 X 

44.50 88.90 

364º 739.39 19DP 

94º 470.92 M16 X 2 

57.15 12.70 

A10000 184º 649.48 238.25 234.95† X G 1/2” - 19 127.00 127.00 X 

57.20 101.60 

364º 1008.38 25DP 

* K e y w ay e n g a g e m e n t i s m e a s u r e d f r o m t h e f r o n t f a c e . 

† D i m e n s i o n s s h o w n a r e “A s C a s t ” D i m e n s i o n s . 

A S E R I E S M O O G F L O - T O R K 

7

T Y P I C A L P E R F O R M A N C E 

A S E R I E S 

TORQUE 

NM 

73 

68 

62 

56 

51 

45 

40 

34 

28 

23 

17 

11 

6 

0 

A1 0 0 & A 5 0 0 

T O R Q U E O U T P U T 

V S . 

P R E S S U R E 

A500 

A100 

TORQUE 

NM 

1,469 

1,356 

1,243 

1,130 

1,017 

904 

791 

678 

565 

452 

339 

226 

113 

0 

A1 0 0 0 T O A1 0 0 0 0 


V S . 


A10000 

BA R 0 1.7 3.4 5.2 6.9 8.6 BA R 0 1.7 3.4 5.2 6.9 8.6 

A4000 

A1000 

O U T P U T T O R Q U E ( N m ) A T V A R I O U S P R E S S U R E S * ( B A R ) 

MODEL 

TORQUE* 

NUMBER FACTOR 2.76 4.14 6.89 8.62 

A100 1.64 4.5 6.8 11.3 14.1 

A500 8.19 22.6 33.9 56.5 70.6 

A1000 16.39 45.2 67.8 113.0 141.2 

A4000 65.55 180.8 271.2 451.9 564.9 

A10000 163.87 451.9 677.9 1129.8 1412.3 

* O u t p u t t o r q u e ( N m) = To r q u e Fa c t o r x O p e r a t i n g P r e s s u r e ( b a r) . 

E x a m p l e : M o d e l A 1 0 0 0 @ 7 b a r d e l i v e r s ( 1 6 . 3 9 x 6 . 8 9 = ) 1 1 3 N m o f t o r q u e . 

D I S P L A C E M E N T ( L ) P E R S T R O K E * 

MODEL 

DISPLACEMENT* 

NUMBER FACTOR 94º 184º 364º 

A100 0.0003 0.0282 0.0552 0.1092 

A500 0.002 0.188 0.368 0.728 

A1000 0.004 0.376 0.736 1.456 

A4000 0.013 1.222 2.392 4.732 

A10000 0.032 3.008 5.888 11.648 

* D i s p l a c e m e n t ( L) = D i s p l a c e m e n t Fa c t o r x R o t a t i o n a l A r c ( d e g r e e s) . 

E X A M P L E : A 5 0 0 @ 1 8 4 º s w e e p s ( . 0 0 2 x 1 8 4 ) = . 3 6 8 L 

8 


A S E R I E S

E N D C A P O P T I O N S 

A S E R I E S 

A D J U S T A B L E C U S H I O N 

0 - 2 0 º E X T E R N A L S T R O K E A D J U S T O R 

ST ROKE ADJUSTORS 

CUSHIONS 

Cushions are designed to provide smooth deceleration, 

external energy absorption and noise reduction, over 

the last 15º of rotation. Cushions trap air at the end 

of stroke by blocking or restricting the discharge port. 

The trapped air is diverted through a small needle 

valve which generates a back pressure on the discharge 

side of the piston. This back pressure resists the forces 

exerted on the internal parts of the rotary actuator, 

thus causing a slowing of the external mass. 

Stroke adjustors are screw-type adjustable stops at 

end of rotation. They should be used when the 

exact final position of rotation is best determined on 

the assembled machinery or when final position 

requirements may vary with different machine set ups. 

CAUTION: Cushion needles should be set between one 

half and one full turn from seated position. 

Setting should result in continuous speed 

reduction throughout the cushion length. 

Needle adjustment is set too far closed when 

there is an abrupt change in speed as the 

actuator enters the cushion. Never operate 

with needle in seated position or unscrewed 

beyond the point where the seal relief in the 

thread is visible. 

CAUTION: Cushion needle adjustment is a crucial factor 

in achieving optimum cushion performance. 

If the needle valve setting is too far open 

cushion capacity will be reduced or rendered 

ineffective; if set too far closed, cushion action 

will generate shock and pressure spikes in 

excess of actuator rating. 

NOTE: Cushions and stroke adjustors are not available 

on the same cylinder end cap for standard 

models. Consult factory for special 

design considerations. 


9

D I M E N S I O N S - M O U N T I N G O P T I O N S 

A S E R I E S 

T O P & B O T T O M F A C E F L A N G E B A S E F L A N G E 

MODEL 

DIM A B C D E F G H J K L M N P R S 

mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm 

M6 X 1 

A100 63.50 31.75 44.45 44.45 X 114.30 69.85 50.80 95.25 7.11 6.35 38.10 114.30 69.85 50.80 95.25 

8 DP 

M6 X 1 

A500 92.20 45.97 69.85 69.85 X 146.05 88.90 69.85 127.00 7.11 6.35 52.32 146.05 88.90 69.85 127.00 

13 MM 

M8 X1.25 

A1000 142.24 71.12 69.85 69.85 X 203.20 88.90 63.50 177.80 8.64 9.65 80.77 184.15 95.25 69.85 158.75 

16MM DP 

A4000 NOT APPLICA BLE 228.60 127.00 95.25 196.85 11.94 12.70 NOT APPLICA BLE 

A10000 NOT APPLICA BLE 298.45 158.75 127.00 266.70 16.76 19.05 NOT APPLICA BLE 

D i m e n s i o n s a r e s y m m e t r i c a l a b o u t t h e c e n t e r l i n e o f t h e p i n i o n . 

10 


A S E R I E S

S H A F T O P T I O N S 

S I N G L E E N D M A L E S P L I N E F E M A L E S P L I N E S Q U A R E 

K E Y E D S A E 1 0 B S A E 1 0 B 

A S E R I E S 


mm 

MODEL 

mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm 

12.66 3.15 12.62 10.64 1.88 9.50 

A100 19.05 25.40 19.05 33.27 NOT AVAILA BLE 24.64 

12.70 3.18 12.65 10.77 1.91 9.53 

31.70 7.90 31.65 4.83 22.20 19.10 3.43 25.27 

A500 38.10 50.80 27.15 31.75 47.75 38.10 22.38 39.62 

31.75 7.92 31.70 4.88 22.23 19.13 3.48 25.40 

38.05 9.50 38.00 5.84 28.55 24.56 4.42 31.62 

A1000 44.45 57.15 32.61 38.10 63.50 50.80 29.21 49.02 

38.10 9.53 38.05 5.87 28.58 24.59 4.47 31.75 

50.75 12.67 50.67 7.80 44.42 38.20 6.88 37.97 

A4000 57.15 88.90 43.51 50.80 82.55 76.20 45.97 58.67 

50.80 12.70 50.72 7.82 44.45 38.23 6.93 38.10 

76.15 19.02 76.07 11.75 63.45 54.56 9.83 63.37 

A10000 101.60 120.65 65.35 76.20 114.30 114.30 65.02 96.77 

76.20 19.05 76.12 11.79 63.50 54.61 9.91 63.50 


11

P O S I T I O N I D E N T I F I C A T I O N P O R T I N G 

A S E R I E S 

The following identification codes are used to specify 

the location of cushions, cushion adjustments, side 

ports, mountings, or other special requirements. 

SURFACE IDEN TIFICATION 

MS1 - Front surface or face - bearing cap side 

MS2 - Bottom surface - opposite keyway when 

actuator is at mid-rotation (applies to standard 

keyway location only). Available on models 

A100, A500 and A1000. 

MS3 - Back surface - opposite of bearing cap side 

CYLINDER END IDEN TIFICATION 

Cylinder ends are numerically identified as shown 

below. The left cylinder end is No. 1 and the right 

cylinder end is No. 2 when looking at the front 

face with the keyway at 12 o’clock and the rotary 

actuator at mid-rotation. 

MS4 - Top surface - opposite bottom surface. 

Available on models A100, A500 and A1000. 

PORTS - Air Rotary Actuators 

Standard and optional port configuration for FLO-TORK pneumatic rotary actuators. 

RECOMMENDED 

STANDA RD* TUBE SIZE WHEN EXTERNA L STROKE 

MODEL BSPP PORT O.D. (mm) ADJUSTORS A RE PROVIDED SIDE PORTS 

A100 G 1/4” - 19 8 G 1/8-28 

A500 G 1/4” - 19 8 

A1000 G 3/8” - 19 12 

A4000 G 3/8” - 19 12 

A10000 G 1/2” - 14 16 

PORTING IS RELOCATED 

TO ENDCAP FACE ABOVE 

ADJUSTOR PORT. 

SIZING IS AS SHOWN FOR 

STANDARD PORTS. 

CONSULT 

FACTORY 

* C o n s u l t f a c t o r y f o r s p e c i a l p o r t i n g r e q u i r e m e n t s . 

12 


A S E R I E S

H O W T O O R D E R 

A SERIES 

MODEL 

TORQUE 

OUTPUT 

AT 7 BAR 

A100 11.3 Nm 

A500 56.5 Nm 

A1000 113 Nm 

A4000 452 Nm 

A10000 1130 Nm 

ROTATIONAL ARC 

94 — 94º 

184 — 184º -0/+2º 

364 — 364º 

–––- — Other specify 

CUSHIONS 

OO — Omit 

CL — CCW stroke, right end cap 

CR — CW stroke, left end cap 

CB — Cushioned both directions 

X—Special cushions* 

NOTE: Cushion needle adjustment 

faces front in standard 

assembly. Refer to mounting 

surface call out to specify 

other orientation. 

EXAMPLE: Two cushions, back facing CB3. 


OO — Omit 

AL — CCW stroke, right end cap 

AR — CW stroke, left end cap 

AB — Adjustors both directions 

X—Special adjustors* 

CUSHIONS & STROKE ADJUSTORS 

Not Available on Same End 

A1000 - 184 - CB - EB - MS1 - RKH - N - 

SPECIAL MODIFICATIONS 

XT — Special timing 

XB — Special bearings 

XM — Special materials 

XC — Special coatings 

X — Special features* 

SEALS 

N—Nitrile (Buna-N)-standard 

NL — Nitrile (Buna-N)-Lip Seals 

F — Fluoroelastomer (Viton) 

X — Special seal* 

SHAFT CONFIGURATION 

RKS — Single end, keyed (standard on A100) 

SBS — Single end, external spline 

SQS — Single end, square 

RKD — Double end, both keyed 

SBH — Hollow, internal spline 

RKH — Hollow keyed (standard on A500 up) 

X—Special shaft*. 

MOUN TING 

MS1 — Front face mount (bearing cap side)-standard 

MS2 — Bottom face mount 

MS3 — Back face mount 

MS4 — Top face mount 

X—Special configuration* 

Multiple mounting surfaces are designated by combining 

numerals (i.e., front and back is MS13). MS2 and 

MS4 mountings are available on models A100, A500 

and A1000 only. 

*NOTE: The letter ‘X’ appearing as a suffix in the model 

code requires additional information or serial 

number for complete model identification. 

A S E R I E S 

PORTING 

EB — End ports, BSPP 

SB — Side ports, BSPP 

X—Special porting* 

NOTE: Side ports not available when 

cushions are specified. 


13


A S E R I E S O H I O O S C I L L A T O R 

End Caps 

l ANODIZED ALUMINUM 

l OPTIONAL ADJUSTORS 

Gearing 

Bearings 

l DUAL RACK DESIGN 


l HARD COATED ALUMINUM RACK 


l PRE-LUBRICATED 

l HIGH LOAD CAPACITY 

l LOW FRICTION 

Housings 

l HIGH STRENGTH ALUMINUM 

l HARD COAT ANODIZED 

Pinion Shaft 


l RUGGED ONE-PIECE CONSTRUCTION 


A - 1 0 0 A0 6 . T2 ITE H R RU OA 2D 5 0 D.1E 0 S SI HG ON W N S H O W N 



Gear Chamber 

l LIFE TIME LUBRICATED 


l HIGH PRESSURE AIR - 17 BAR MAX. 

l LOW PRESSURE HYDRAULIC - 17 BAR MAX. 

l TORQUE RANGE - 23 TO 1921 NM @ 7 BAR 

l STANDARD ROTATIONS - 100, 190, 280, 

370 DEGREES 



l TAPERED ROLLER BEARING - HIGH EXTERNAL 

LOAD CAPACITY 

l PISTON SEALS - PRE-LOADED LIP SEALS 




l COMBINED CUSHINON AND ST ROKE ADJUSTOR 

l BSPP 

l ALTERNATIVE MOUN TING AR RANGEMEN TS 

l ALTERNATIVE SHAFT CONFIGURATIONS 

l CUSTOM ROTATIONAL ARCS 

l SIDE PORTED END CAPS 

l SPECIAL SEALS 

l AIR BLEEDS (FOR HYDRAULIC SERVICES) 

l THRU SHAFT - POSITION INST RUMEN TATION DRIVE 

l OPERATING TEMPERATURE - -18 0 TO 93 0 C 

14 


A S E R I E S


A B C D E F G H J K L M N P Q R S T U 


NUMBER DEGREE mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm 

100 285.24 

190 317.50 

A6.2 M10 X 

280 407.16 1.5 

370 436.88 76.03 76.03 25.35 6.35 4.75 22.23 

101.60 127.00 101.60 9.53 120.65 X 31.75 X 1/4-19 85.85 57.15 50.80 X 44.45 

100 290.83 76.20 76.20 25.40 25.4 3.18 22.30 BSPP 

190 320.80 13MM 

A6.3 DP 

280 410.21 

370 440.18 

100 336.55 

190 376.43 

A19.3 

280 499.11 M14 X 

2 

370 542.04 88.77 88.77 31.70 6.35 6.35 25.40 1/4-19 

120.65 146.05 114.30 11.68 144.02 X 38.86 X 82.55 69.85 41.28 X 50.80 

100 339.09 88.90 88.90 31.75 31.75 12.19 25.50 BSPP 

190 378.97 13MM 

A19.4 DP 

280 501.40 

370 546.10 

100 428.50 

190 484.38 

A67.4 

280 656.59 3/8-19 M16 X 2 

370 712.47 126.87 126.87 50.75 12.7 9.53 44.48 BSPP 

203.20 203.20 165.10 15.75 232.41 X 69.85 X 114.30 101.60 57.15 X 69.85 

100 440.44 127.00 127.00 50.80 50.8 6.35 44.53 1/2-14 

190 496.32 BSPP 22MM 

A67.6 DP 

280 670.05 

370 725.93 

100 653.03 

190 835.41 

A250.6 M20 X 

280 1075.18 2.5 

370 1251.81 215.65 215.65 76.15 19.05 19.05 76.23 

254.00 330.20 228.60 24.89 303.78 X 76.20 X 3/4-14 203.20 165.10 101.60 X 127.00 

100 653.03 215.90 215.90 76.17 50.8 12.7 76.28 BSPP 

190 835.41 29MM 

A250.8 DP 

280 1075.18 

370 1257.81 

100 762.00 M20 X 

190 866.65 215.65 215.65 76.15 19.05 19.05 76.23 2.5 

A250.10 279.40 355.60 228.60 24.89 303.78 X 76.20 X 1-11 226.70 165.10 165.10 X 127.00 

280 1184.15 215.90 215.90 76.17 50.8 12.7 76.28 BSPP 29MM 

370 1336.55 DP 


N O T E : Ta b u l a t e d d i m e n s i o n s a r e f o r b a s e m o d e l , s t a n d a r d c o n f i g u r a t i o n . 

T h e s e l e c t i o n o f o p t i o n s m ay a l t e r e n v e l o p e d i m e n s i o n . 

R e f e r t o o p t i o n s s e c t i o n o r c o n s u l t f a c t o r y f o r a d d i t i o n a l i n f o r m a t i o n . 

* D i m e n s i o n D i s a s c a s t . 


15



TORQUE 

O U T P U T T O R Q U E ( N m ) A T V A R I O U S P R E S S U R E I N B A R 

MODEL 

TORQUE* 

NUMBER FACTOR 3 5 7 10.3 17.23 

A6.2 3.28 9.84 16.4 23 33.8 56.5 

A6.3 7.21 21.6 36.1 50.5 74.3 124 

A19.3 9.83 29.5 49.2 68.8 101 169 

A19.4 17.3 51.9 86.5 121 178 298 

A67.4 24.3 72.9 122 170 250 419 

A67.6 55.1 165 276 386 568 949 

A250.6 104 312 520 728 1070 1790 

A250.8 187 561 935 1310 1930 3220 

A250.10 292 876 1460 2040 3010 5030 

DISPLACEMEN T 

* O u t p u t To r q u e ( N m) = To r q u e Fa c t o r x O p e r a t i n g P r e s s u r e ( b a r) . 

E x a m p l e : M o d e l A 1 9 . 3 @ 7 b a r d e l i v e r s ( 9 . 8 3 x 7 = ) 6 8 . 8 N m t o r q u e . 

V O L U M E T R I C D I S P L A C E M E N T ( L ) P E R S T R O K E 

MODEL 

DISPLACEMENT* 

NUMBER FACTOR 100 0 190 0 280 0 370 0 

A6.2 0.0007 0.07 0.13 0.20 0.26 

A6.3 0.0015 0.15 0.29 0.42 0.56 

A19.3 0.002 0.20 0.38 0.56 0.74 

A19.4 0.0036 0.36 0.68 1.01 1.33 

A67.4 0.005 0.50 0.95 1.40 1.86 

A67.6 0.011 1.10 2.09 3.08 4.07 

A250.6 0.022 2.20 4.18 6.16 8.14 

A250.8 0.038 3.80 7.22 10.64 14.06 

A250.10 0.06 6.00 11.40 16.80 22.20 

* D i s p l a c e m e n t ( L) = D i s p l a c e m e n t Fa c t o r x R o t a t i o n a l A r c ( d e g r e e s) . 

E x a m p l e : M o d e l A 1 9 . 3 @ 1 9 0 0 s w e e p s ( . 0 0 2 x 1 9 0 ) = . 3 8 L . 

* * N O T E : E x c e e d i n g m a x i m u m p r e s s u r e m ay b e d e t r i m e n t a l t o t h e a c t u a t o r a n d m ay 

r e d u c e t h e c y c l e l i f e . C o n s u l t f a c t o r y f o r a p p l i c a t i o n w h e r e m a x i m u m p r e s s u r e 

m ay b e e x c e e d e d . 

16 


A S E R I E S

E N D C A P S 

0 - 2 0 º E X T E R N A L S T R O K E A D J U S T O R 


CUSHIONS 

Cushions are designed to protect the actuator from 

damaging impact at the end of rotation. When 

properly sized and adjusted, cushions may also 

provide smooth deceleration, external energy 

absorption and noise reduction. 

Cushions trap fluid at the end of stroke by blocking 

or restricting the discharge port. The trapped fluid is 

diverted through a small needle valve which generates 

a back pressure on the discharge side of the piston. 

I N T E R N A L S T R O K E A D J U S T O R 

A N D A D J U S T A B L E C U S H I O N 




exact final position of rotation is best determined on 

the assembled machinery or when final position 

requirements may vary with different machine set ups. 

ST ROKE ADJUSTORS & ADJUSTABLE CUSHION 

Adjustable cushion and stroke adjustors are combined 

as a single end of stroke option. 

The Ohio Oscillator design moves the cushion 

engagement position along with the end of stroke 

adjustment so the full engagement length of the 

cushion is retained at any stroke adjustment setting. 

CAUTION: Cushion needles should be set between one 

half and one full turn from seated position. 







beyond the point where the seal relief in the 



The back pressure resists the forces exerted on the 

rack by the propelling action of the actuator and the 

slowing of external mass which imparts engery into 

the actuator through the shaft. A check valve is 

included to bypass the cushion action at the start of 

rotation in the reverse direction. 

NOTE: Cushions needle adjustment is a crucial factor 

in achieving optimum cushion performance. 

If the needle valve setting is too far open, 

cushion capacity will be reduced, or rendered 

ineffective; if set too tight, cushion action will 

generate shock and pressure spikes in excess 

of actuator rating. 

* C A U T I O N : S t r o k e A d j u s t o r s a n d c u s h i o n s s h o u l d n e v e r b e a d j u s t e d w h i l e t h e s y s t e m i s u n d e r p r e s s u r e . 

S E R I E S A M O O G F L O - T O R K 

17

M O U N T I N G O P T I O N S 



DIM J K L M N P Q R S T U V X Y Z 

MODEL mm mm Thd mm mm mm mm mm mm mm mm mm mm mm mm 

A6.2 

& 57.15 76.20 3/8-16 15.75 184.15 101.60 24.38 57.15 155.70 158.75 101.60 9.65 57.15 130.30 10.41 

A6.3 

A19.3 

& 69.85 88.90 1/2-13 19.05 222.25 114.30 30.48 69.85 184.15 196.85 114.30 12.70 69.85 158.75 13.46 

A19.4 

A67.4 

& 88.90 127.00 5/8-11 22.35 298.45 165.10 43.69 101.60 250.95 298.45 165.10 15.75 101.60 250.95 16.76 

A67.6 

A250.6 

THRU 165.10 165.10 3/4-10 28.45 444.50 228.60 76.20 165.10 387.35 368.30 228.60 25.40 165.10 311.15 19.81 

A250.10 

18 


S E R I E S A


H O L L O W E D 

K E Y E D 

M A L E S P L I N E 

S A E 1 0 B 

F E M A L E S P L I N E 

S A E 1 0 B 

S Q U A R E 


MODEL 


A6.2 22.23 4.75 25.35 21.69 3.89 22.20 19.10 3.43 15.88 

& 120.65 25.40 39.72 30.99 23.11 31.75 

A6.3 22.30 4.78 25.32 21.56 3.86 22.23 19.13 3.48 15.82 

A19.3 25.40 6.35 31.70 27.15 4.88 31.72 27.28 4.90 25.40 

& 63.50 31.75 31.75 56.64 72.39 32.00 38.86 

A19.4 25.50 6.38 31.65 27.02 4.85 31.75 27.33 4.95 25.27 

A67.4 44.48 9.53 50.72 43.57 7.82 44.45 38.20 6.88 38.10 

& 91.95 51.56 50.80 75.18 68.33 45.21 69.85 

A67.6 44.53 9.55 50.67 43.38 7.80 44.43 38.23 6.93 37.07 

A250.6 76.23 19.08 76.07 65.23 11.76 76.15 65.48 11.81 63.50 

THRU 304.80 76.20 118.11 76.02 77.72 74.68 

A250.10 76.28 19.10 76.12 65.35 11.79 76.20 65.53 11.89 63.37 


S E R I E S A F L O - T O R K 

19

P O S I T I O N I D E N T I F I C A T I O N & P O R T I N G 



the location of cushions, cushion adjustments, side 

ports, mountings, or other special requirements. 




actuator is at mid-rotation (applies to standard 

keyway location only). 


MS4 - Top surface - opposite bottom surface. 

PORTS - Air Rotary Actuators 


Standard and optional port configuration for Ohio Oscillator pneumatic rotary actuators. 


below. The left cylinder end is No. 1 and the right 

cylinder end is No. 2 when looking at the front face 

with the keyway at 12 o’clock and the rotary actuator 

at mid-rotation. 

RECOMMENDED EXTERNA L STROKE ADJUSTERS SIDE PORT 

STANDA RD TUBE SIZE M AXIMUM M AXIMUM 

MODEL BSPP PORT O.D. (mm) 

BSPP 

BSPP 

A6.2 

A6.3 G 1/4-19 9.50 

A19.3 G 1/4-19 BSPP 

A19.4 

G 3/8-19 12.7 

CONSULT 

FACTORY 

A67.4 

A67.6 G 1/2-14 15.9 

A250.6 

A250.8 

G 3/4-14 19.05 

CONSULT 

FACTORY FOR OPTIONAL SIZES 

A250.10 G 1-11 31.75 

20 


A S E R I E S


A SERIES 

MODEL 

TORQUE 

OUTPUT 

AT 7 BAR 

6.2 23 Nm 

6.3 50 Nm 

19.3 68 Nm 

19.4 120 Nm 

67.4 167 Nm 

67. 6 380 Nm 

250. 6 723 Nm 

250. 8 1288 Nm 

250. 10 2011 Nm 


100 — 100º 

190 — 190º +/-1º 

280 — 280º 

370 — 370º 


CUSHIONS 

OO — Omit 

CL — CCW stroke, right end cap 

CR — CW stroke, left end cap 

CB — Both ends of stroke 

X—Special cushions 


faces front (bearing cap side) 

in standard assembly. Refer to 

mounting surface call out to 

specify other orientation. 

EXAMPLE: Two cushions, back facing CB3. 


OO — Omit 

AL — CCW stroke, right end cap (0-20º) 

AR — CW stroke, left end cap (0-20º) 

AB — Adjustors both directions (0-20º) 

X—Special adjustors 

ADJUSTORS & CUSHIONS COMBINED 

OO — Omit 

ACL — CCW stroke, right end cap 

ACR — CW stroke, left end cap 

ACB — Both ends of stroke 

X—Special cushions and adjustors 


faces front (bearing cap side) 

in standard assembly. Refer to 

mounting surface call out to 

specify other orientation. 

EXAMPLE: Two cushions, top facing ACB4. 

A19.3 - 100 - ACB - B - MS2 - SBS - N - 

SPECIAL MODIFICATIONS 

LS — Limit switches 

PT — Position transducer drive 

XY — Expoxy paint 




XC — Special coating 

MOUN TING 

MS1 — Front face mount (bearing cap side) (standard) 




MF1 — Front flange mount 

MF2 — Bottom flange mount 

MF3 — Back flange mount 

MF4 — Top flange mount 

X—Special configuration 

PORTING 




NOTE: Side port position faces top (rack side 

of shaft) in standard assembly. Refer to 

mounting surface call out to specify 

other orientation. 

EXAMPLE: BSPP side ports, back facing-SB3 

SEALS 

N — Nitrile (Buna-N) 

NL — Fluoroelastomer (Viton) 

F—Special seals 


RKS — Round, keyed, single (standard) 

RKD — Round, keyed, double 

RKH — Round, keyed, hollow 

SBS — Spline (SAE 10B) single 

SBD — Spline double 

SBH — Spline, hollow 

SQS — Square, single 

SQD — Square, double 



NOTE: The letter “X” appearing as a suffix in the 

model code requires additional information or 

serial number for complete model identification. 

Port size will vary from standard sizes when 

changing from end ports to side ports (BSPP) 


21


P S E R I E S 

End Caps 

l ANODIZED ALUMINUM 

l OPTIONAL ADJUSTORS 

Housings 

l HIGH STRENGTH ALUMINUM 

l HARD COAT ANODIZED 

l DUCTILE IRON - P4000 & LARGER 

Gear Chamber 

l LIFE TIME LUBRICATED 


Gearing 

l DUAL RACK DESIGN 


l HARD COATED ALUMINUM RACK 


Bearings 

l PRE-LUBRICATED - BRONZE 

l HIGH LOAD CAPACITY 

l LOW FRICTION 

Pinion Shaft 


l RUGGED ONE-PIECE CONSTRUCTION 


A - 1 0 0 0 P 3 0T 0 I E T H R U O PD 2 0D 0 E0 SSIH GO WN N S H O W N 



l HIGH PRESSURE AIR - 8.62 BAR 

l TORQUE RANGE - 34 TO 1130 NM @ 7 BAR 

l STANDARD ROTATIONS - 94, 184 DEGREES 

l BSPP 


l DUAL RACK DESIGN - DOUBLES TORQUE OUTPUT 

l PISTON SEALS - O-RING 

l ST ROKE ADJUSTORS (ONE DIRECTION ONLY) 



l CLOCKWISE OR COUN TERCLOCKWISE ROTATIONS 





l OPERATING TEMPERATURE - -18 O TO 93 O C 

l (P300 THRU P2000) EXT RUDED ALUMINUM 

HOUSING - HARD COAT ANODIZED 


22 


P S E R I E S


M O D E L P 3 0 0 , P1 0 0 0 & P 2 0 0 0 

P S E R I E S 

M O D E L P 4 0 0 0 , P 8 0 0 0 & P1 0 0 0 0 

MODEL 

ROTATION 

A B C D E F G H J K L M N P R S 

NUMBER DEGREES mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm 

94º 167.89 M6 X 1 

19.00 

P300 63.50 63.50 44.45 44.45 X 4.76 X 25.40 4.76 14.29 15.24 16.00 N/A G 1/8 -2 8 N/A N/A 

19.05 

184º 259.59 8DP 

94º 213.36 M6 X 1 

22.23 

P1000 91.95 91.95 69.85 69.85 X 4.76 X 88.11 6.35 19.05 17.53 31.75 N/A G 1/4 - 19 N/A N/A 

22.28 

184º 332.99 13DP 

94º 276.10 M10 X 1.5 

31.78 

P2000 115.82 115.82 95.25 82.55 X 6.35 X 112.71 6.35 19.05 16.76 34.80 N/A G 1/4 - 19 N/A N/A 

31.85 

184º 449.07 19DP 

94º 400.30 M12 X 1.75 

44.45 

P4000 162.05 146.05 95.25 95.25 X 9.53 X 75.41 7.94 23.81 26.16 39.62 69.85 G 3/8 - 19 54.10 41.40 

† 44.53 

184º 639.57 19DP 

94º 435.88 M12 X 1.75 

44.45 

P8000 184.15 177.80 95.25 95.25 X 9.53 X 91.28 9.53 28.58 29.97 56.13 79.38 G 3/8 - 19 54.86 54.10 

† 44.50 

184º 695.20 19DP 

94º 469.65 M16 X 2 

50.83 

P10000 193.55 188.91 127.00 127.00 X 12.70 X 95.25 9.53 28.58 32.51 56.13 82.55 G 3/8 - 19 63.50 57.15 

† 50.90 

184º 749.05 25DP 

* K e y w ay e n g a g e m e n t i s m e a s u r e d f r o m t h e f r o n t f a c e . 

† D i m e n s i o n s a r e s h o w n a s c a s t . 

P S E R I E S M O O G F L O - T O R K 

23


P S E R I E S 

TORQUE 

NM 

282 

226 

169 

113 

P 3 0 0 T O P 2 0 0 0 


V S . 


P2000 

P1000 

TORQUE 

NM 

1,582 

1,356 

1,130 

904 

678 

P 4 0 0 0 T O P1 0 0 0 0 


V S . 


P10000 

P8000 

56 

P300 

0 

BA R 0 1.7 3.4 5.2 6.9 8.6 


452 

P4000 

226 

0 

BA R 0 1.7 3.4 5.2 6.9 8.6 


MODEL 

NUMBER 

DISPLACEMENT 

FACTOR 

D I S P L A C E M E N T ( L ) P E R S T R O K E * 

9 4 0 1 8 4 0 

MODEL 

NUMBER 

TORQUE 

FACTOR 

O U T P U T T O R Q U E ( N m ) 

A T V A R I O U S P R E S S U R E S * ( B A R ) 

2 . 7 6 4 . 1 4 6 . 8 9 8 . 6 2 

P300 0.001 0.094 0.184 

P1000 0.003 0.282 0.552 

P2000 0.006 0.564 1.104 

P4000 0.015 1.41 2.76 

P8000 0.027 2.538 4.968 

P10000 0.032 3.008 5.888 

* D i s p l a c e m e n t ( L) = D i s p l a c e m e n t Fa c t o r x 

R o t a t i o n a l A r c ( d e g r e e s) . 

E x a m p l e : P1 0 0 0 @ 1 8 4 º s w e e p s 

( . 0 0 3 x 1 8 4 ) = . 5 5 2 L . 

P300 4.92 14 20 34 42 

P1000 16.39 45 68 113 141 

P2000 32.77 90 136 226 282 

P4000 65.55 181 271 452 565 

P8000 131.10 362 542 904 1130 

P10000 163.87 452 678 1130 1412 

* O u t p u t To r q u e ( N m) = To r q u e f a c t o r 

x O p e r a t i n g P r e s s u r e ( b a r) . 

E x a m p l e : M o d e l P 2 0 0 0 @ 4 . 1 4 b a r d e l i v e r s 

( 3 2 .7 7 x 4 . 1 4 ) = 1 3 6 N m t o r q u e . 

24 


P S E R I E S


P SERIES 

MODEL 

P300 

P1000 

P2000 

P4000 

P8000 

P10000 

TORQUE 

OUTPUT 

AT 7 BAR 

34 Nm 

173 Nm 

226 Nm 

452 Nm 

904 Nm 

1130 Nm 


94 — 94º 

-0/+2º 

184 — 184º 


Maximum rotation of dual 

rack rotary actuators is 184º 

P4000 - 94 - A L - EB - MS13 - RKH - N - CW - 

SPECIAL 

MODIFICATIONS 


of keyway 


XC — Special coatings 

SR — Spring return 

X — Special features* 

ROTATION DIRECTION 

CW — Clockwise rotation 

(standard) 

CCW — Counter-clockwise 

rotation 

P S E R I E S 

CUSHIONS 

Not Available 

SEALS 

N — Nitrile (Buna-N) - standard 

F—Fluoroelastomer (Viton) 

X—Special seal* 


OO — Omit 

AL — Left end cap (0-6º) 

AR — Right end cap (0-6º) 

AB — Both end caps (0-6º) 

X—Special adjustors* 

Stroke adjustment affects only the 

outward piston stroke. 

PORTING 

EB — BSPP (standard) 



RKS — Single end, keyed (standard on P300) 

RKD — Double end, keyed both ends of shaft 

RKH — Hollow, keyed (standard on 

P1000 to P10000) 

X—Special shaft* 

MOUN TING 

MS1 — Front face (bearing cap side) - standard 

MS2 — Bottom surface 

MS3 — Back surface 

MS4 — Top surface 

X— Special configuration* 

Multiple mounting surfaces are designated by combining numerals 

(i.e., front and back is MS13). 

MS2 and MS4 mountings are not available on P4000 To P10000. 

*NOTE: The letter ‘X’ appearing as a suffix in the model 

code requires additional information or serial 

number for complete model identification. 

NOTE: Clockwise rotation is with keyway rotating from 12 o’clock 

position to 3 o’clock position when facing the snap ring 

side with the pressure ports on top. For counter-clockwise 

rotation the keyway rotates from 12 o’clock position to the 

9 o’clock position. 

P S E R I E S M O O G F L O - T O R K 

25

H Y D R A U L I C R O T A R Y A C T U A T O R S 

H Y D R A U L I C S E R I E S 

Pinion Shaft 

l HIGH STRENGTH STEEL ALLOY 

l RUGGED ONE PIECE CONSTRUCTION 

l 

Cylinders 

SINGLE TOOTH LOAD CAPACITY 

l HEAVY WALL STEEL TUBING 

l PRECISION HONED BORES 

End Caps 

l STEEL BAR OR DUCTILE IRON 

OPTIONAL CUSHIONS AND ADJUSTORS 

Bearings 

l BALL OR TAPERED ROLLER 

l SUBSTANTIAL EXTERNAL 

LOAD CAPACITY 

Piston Seals 

l ZERO LEA KAGE 

RADIAL SEALS 

l O-RING & DOUBLE 

BACK-UP RINGS 

l ENERGIZED LIP SEAL 

(3700 - 7500) 

Pistons and Racks 

l PATENTED FLOATING PISTON 

DESIGN (75000 AND UP) 

l ONE PIECE PISTON/RACK 

DESIGN (900 TO 30000) 

l HIGH STRENGTH DUCTILE IRON 

Gearing 

l HIGH STRENGTH 

HARDENED STEEL 


LOAD CAPACITY 

Tie Rods 

l PRE- STRESSED STEEL ALLOY 

Keyway Timing 

l 12 O’CLOCK POSITION 

AT MID-STROKE OF ROTATION 

Gear Chamber 

l OIL-FILLED, 

ELASTOMER SEALED 

l NON-PRESSURIZED 

WITH RELIEF VALVE 

Housing 


DUCTILE IRON 

l OPTIONAL MOUNTING 

SURFACES 



l HEAVY DUTY HYDRAULIC - 206.8 BAR MAX. 

l TORQUE RANGE - 102 TO 67791 NM 

@ 207 BAR 


l BSPP PORTS 



l AN TI-FRICTION BEARINGS - HIGH EXTERNAL 

LOAD CAPABILITY 


l THROUGH SHAFT - POSITION READOUT SOURCE 

l DECELERATING CUSHIONS 


l CUSHIONS & ST ROKE ADJUSTORS 

l END PORTS OR SIDE PORTS 





l AIR BLEEDS 


l MINIMUM BREAKAWAY PRESSURE - 3.4 BAR 


26 


H Y D R A U L I C S E R I E S


H O L L O W S H A F T O P T I O N 


A B C D E F G H J K L M N 

MODEL NUMBER ROTATION 

NUMBER RACKS DEGREES mm mm mm mm mm mm BSPP mm mm mm mm mm mm 

900 1 90º 160.27 22.19 6.35 M8 X 1.25 15.88 4.75 

180º 208.03 75.69 76.20 33.27 X G 1/4 - 19 66.80 60.45 X 85.85 

1800 2 360º 303.78 22.23 25.40 13DP 15.93 4.78 

3700 1 90º 215.65 31.70 7.94 M10 X 1.5 22.23 4.75 

180º 285.50 100.08 114.30 47.75 X G 1/4 - 19 76.20 92.20 X 97.03 

7500 2 360º 424.94 31.75 38.10 16 DP 22.28 4.78 

15000 1 90º 324.87 57.10 14.29 M20 X 2.5 38.10 9.53 

180º 436.63 133.35 174.75 85.85 X G 1/2 -14 120.65 123.95 X 171.45 

30000 2 360º 660.15 57.15 60.33 21DP 38.18 9.55 

75000 1 90º 624.84 76.15 19.05 M24 X 3 69.85 15.88 

180º 848.11 219.20 292.10 114.30 X G 3/4 - 14 187.45 231.90 X 244.60 

150000 2 360º 1295.15 76.20 85.75 41.00 69.90 15.90 

300000 1 90º 887.20 126.95 31.75 M30 X 3.5 95.25 19.05 

180º 1166.60 368.30 419.10 190.50 X G 1 - 11 330.20 342.90 X 403.35 

600000 2 360º 1725.40 127.00 152.40 44DP 95.35 19.08 

“A” D i m e n s i o n s i n c r e a s e 2 1 . 3 4 m m p e r c u s h i o n e n d f o r M o d e l s 9 0 0 a n d 1 8 0 0 . 

“ C ” D i m e n s i o n s a r e “A s C a s t ”. 

H Y D R A U L I C S E R I E S M O O G F L O - T O R K 

27



TORQUE 

Nm 

226 

203 

181 

158 

136 

113 

90 

68 

45 

23 

0 

847 

763 

678 

593 

508 

424 

339 

254 

169 

1800 

7500 

3700 

900 

TORQUE 

Nm 

3,389 

3,050 

2,712 

2,373 

2,034 

1,695 

1,356 

1,017 

678 


V S . 


30000 

15000 

TORQUE 

Nm 

16,947 

15,252 

13,558 

11,863 

10,168 

8,474 

6,779 

5,084 

3,389 

1,695 

0 

67,788 

61,009 

54,230 

47,452 

40,673 

33,894 

27,11 

20,336 

13,558 

150000 

75000 

600000 

300000 

85 

339 

6,779 

0 

BA R 0 34 69 103 138 172 207 


0 

BA R 0 34 69 103 138 172 207 


0 

BA R 0 34 69 103 138 172 207 


O U T P U T T O R Q U E ( N m ) @ V A R I O U S P R E S S U R E * ( B A R ) 

M O D E L T O R Q U E 

N O . F A C T O R * 3 4 . 4 7 5 1 . 7 1 1 0 3 . 4 2 1 7 2 . 3 7 2 0 6 . 8 4 

900 0.49 34 50 68 84 101 

1800 0.98 68 101 135 169 203 

3700 2.02 139 208 279 347 418 

7500 4.10 283 422 566 705 849 

15000 8.19 565 844 1130 1409 1695 

30000 16.4 1131 1688 2262 2819 3393 

75000 41.0 2827 4220 5654 7047 8481 

150000 81.9 5654 8440 11308 14094 16962 

300000 164 11307 16879 22614 28186 33921 

600000 328 22614 33757 45228 56371 67842 

* O u t p u t To r q u e ( N m) = To r q u e 

Fa c t o r x O p e r a t i n g P r e s s u r e ( b a r) . 

E x a m p l e : M o d e l 3 0 0 0 0 @ 1 0 3 b a r 

d e l i v e r s ( 1 6 .4 x 1 0 3 ) = 1 6 8 8 N m 

t o r q u e . 

M O D E L 

D I S P L A C E M E N T 

D I S P L A C E M E N T ( L ) S T R O K E * 

N U M B E R F A C T O R * 9 0 0 1 8 0 0 3 6 0 0 

900 0.0001 0.009 0.018 0.036 

1800 0.0002 0.018 0.036 0.072 

3700 0.0004 0.036 0.072 0.144 

7500 0.0008 0.144 0.144 0.288 

15000 0.0016 0.288 0.288 0.576 

30000 0.0032 0.009 0.576 1.152 

75000 0.0078 0.702 1.404 2.808 

150000 0.016 1.44 2.88 5.76 

300000 0.031 2.79 5.58 11.16 

600000 0.062 5.58 11.16 22.32 

* D i s p l a c e m e n t ( L) = D i s p l a c e m e n t 

Fa c t o r x R o t a t i o n a l A r c ( d e g r e e s) . 

E x a m p l e : 1 5 0 0 0 x 1 8 0 º d i s p l a c e s 

( . 0 0 1 6 x 1 8 0 ) = . 2 8 8 L . 

28 




EXTERNAL ST ROKE ADJUSTORS 

External stroke adjustors permit 0-30º of adjustment at 

the end of rotation. The adjustor stop, which contains 

the port, is set in position with a wrench on external 

flats and locked in place with a jam nut against a 

thread seal. 

M O D E L S 9 0 0 T O 7 5 0 0 M O D E L S 1 5 0 0 0 A N D U P 

CUSHIONS 

Cushions are designed to provide smooth deceleration, 

external energy absorption and noise reduction, over 

the last 15º of rotation. Cushions trap fluid at the end 

of stroke by locking or restricting the discharge port. 

The trapped fluid is diverted through a small needle 

valve which generates a back pressure on the discharge 

side of the piston. This back pressure resists the forces 

exerted on the internal parts of the rotary actuator, 

thus causing a slowing of the external mass. 

IN TERNAL ST ROKE ADJUSTOR & 

ADJUSTABLE CUSHION 

The 0-5º internal stroke adjustor and the adjustable 

cushion are combined into a single option. This design 

permits the full cushioning effect at any stroke 

adjustment setting. 

CAUTION: Cushion needles should be set between one half 

and one full turn from seated position. Setting 

should result in continuous speed reduction 

throughout the cushion length. Needle adjustment 

is set too far closed when there is an abrupt 

change in speed as the actuator enters the 

cushion. Never operate with needle in seated 

position or unscrewed beyond the point where 

the seal relief in the thread is visible. 

CAUTION: Cushion needle adjustment is a crucial factor in 

achieving optimum cushion performance. If 

the needle valve setting is too far open, cushion 

capacity will be reduced, or rendered ineffective; 

if set too far closed, cushion action will generate 

shock and pressure spikes in excess of 

actuator rating. 



IN TERNAL ST ROKE ADJUSTORS 

Internal stroke adjustors permit 0-5º of adjustment. A 

threaded bushing within the end cap is set in position 

by a hex wrench inserted through the port and locked 

in place with a set screw. 

*NOTE: When ordering a double rack model with stroke 

adjustors it is necessary to order end of stroke 

adjustors for both cylinders. When only one stroke 

adjustor is used for end of stroke adjustment on a 

double rack model the maximum operating pressure 

must be limited to 103.4 bar. 

*NOTE: Cushions and external stroke adjustors are not 

available on the same cylinder end cap for 

standard models. Consult factory for special 

design considerations. 


29



T O P A N D F A C E F L A N G E B A S E F L A N G E 

B O T T O M 

NOTE: Consult factory for dowelling recommendations 


MODEL mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm 

900 M8 X 1.25 

75.69 37.59 66.80 60.45 X 120.65 88.90 63.50 101.60 11.18 9.65 47.75 120.65 88.90 63.50 101.60 

1800 13mm DP 

3700 M10 X 1.5 

114.30 57.15 76.20 76.20 X 184.15 111.25 76.20 146.05 14.22 12.70 69.85 165.10 111.25 76.20 127.00 

7500 16mm DP 

1500 M20 X 2.5 

171.70 85.85 120.65 95.25 X 241.30 171.45 120.65 209.55 17.53 16.00 101.60 196.85 171.45 133.35 171.45 

30000 21mm DP 

75000 M24 X 3 

287.27 143.76 187.45 158.75 X 374.65 285.75 234.95 339.85 20.57 25.40 169.16 298.45 285.75 234.95 266.70 

150000 44mm DP 

300000 M30 X 3.5 

413.00 206.50 254.00 292.10 X 590.55 457.20 381.00 539.75 26.92 31.75 238.25 495.30 457.20 304.80 419.10 

600000 44mm DP 

N O T E : D i m e n s i o n s a r e s y m m e t r i c a l a b o u t t h e c e n t e r l i n e o f t h e p i n i o n . 

30 




H O L L O W M A L E S P L I N E F E M A L E S P L I N E 

K E Y E D S A E 1 0 B S A E 1 0 B S Q U A R E 


A B C D E F G H J K L M N P R S 

MODEL 

NUMBER mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm 

900 15.88 4.75 22.15 18.85 3.35 19.02 17.32 2.92 15.82 

73.66 22.10 33.27 31.75 19.05 31.75 

1800 15.93 4.78 22.17 18.97 3.40 19.05 17.35 2.97 15.88 

N O I N T E R N A L 

R E L I E F D I A M E T E R 

3700 22.23 4.75 31.65 4.83 22.20 19.10 3.43 25.27 

97.79 27.15 31.75 47.75 38.10 22.38 47.75 

7500 22.28 4.78 31.70 4.88 22.23 19.13 3.48 25.40 

15000 38.10 9.53 57.02 8.76 44.45 38.20 6.88 44.32 

131.83 48.97 57.15 85.85 44.45 45.97 85.85 

30000 38.18 9.55 57.07 8.81 44.58 38.33 6.93 44.45 

75000 69.85 15.88 76.07 11.73 76.20 65.61 11.81 63.37 

217.42 65.35 76.20 114.30 76.20 76.96 95.25 

150000 69.90 15.90 76.12 11.79 76.30 65.74 11.89 63.47 

300000 95.25 19.05 126.80 19.66 101.52 87.12 15.77 101.47 

366.78 108.97 127.00 190.50 101.60 103.12 187.45 

600000 95.35 19.08 126.85 19.71 101.60 87. 30 15.85 101.60 


31

P O S I T I O N I D E N T I F I C A T I O N A N D P O R T I N G 



the location of cushions, cushion adjustments, side ports 

and mountings. 




actuator is at mid-rotation (applies to 

standard keyway location only) 


MS4 - Top surface - opposite bottom surface 



below. On double rack units the upper left hand 

cylinder end is designated as No. 1. Continuing 

clockwise, the upper right hand cylinder is No. 2, the 

lower right hand cylinder end is No. 3, and the lower 

left hand cylinder end is No. 4. 

On single rack Hydraulic units the lower rack is used. 

The right cylinder end is No. 3 and the left cylinder 

end is No. 4. 

P O R T S - H Y D R A U L I C R O T A R Y A C T U A T O R S 

S t a n d a r d a n d o p t i o n a l p o r t c o n f i g u r a t i o n s f o r 

M o o g F l o -To r k h y d r a u l i c r o t a r y a c t u a t o r s . 

EXTERNA L STROKE ADJUSTORS 

SIDE PORT 

RECOMMENDED M AXIMUM PORT SIZE* M AXIMUM PORT SIZE* 

STANDA RD TUBE SIZE 

MODEL BSPP O.D. (mm) BSPP BSPP 

900 

1800 

3700 

7500 

15000 

30000 

75000 

150000 

300000 

600000 

G 1/4 - 19 

G 1/4 - 19 

G 1/2 - 14 

G 3/4 - 14 

G 1 - 11 

8 G 1/8 - 28 G 1/4 - 19 

8 G 1/4 - 19 G 1/4 - 19 

16 G 1/2 - 14 G 3/8 - 19 

20 G 3/4 - 14 G 1/2 - 14 

25 G 1 - 11 G 3/4 - 14 

* C o n s u l t f a c t o r y f o r s p e c i a l p o r t i n g r e q u i r e m e n t s . S i z e s s h o w n f o r e x t e r n a l 

s t r o k e a d j u s t o r s a n d s i d e p o r t s a r e m a x i m u m s t a n d a r d p o r t s i z e s . 

32 




HYDRAULIC SERIES 

TORQUE 

OUTPUT NUMBER 

MODEL AT 207 BAR OF RACKS 

900 102 Nm 1 

1,800 203 Nm 2 

3,700 418 Nm 1 

7,500 847 Nm 2 

15,000 1695 Nm 1 

30,000 339 Nm 2 

75,000 8474 Nm 1 

150,000 16948 Nm 2 

300,000 33895 Nm 1 

600,000 67791 Nm 2 


90 — 90º 

180 — 180º -0/+2º 

360 — 360º 


CUSHIONS** 

OO — Omit 

CL — Counter-clockwise stroke 

CR — Clockwise stroke 

CB — Both ends of stroke 

CQ — Four cushions (two rack units only) 

X — Special cushions* 

NOTE: Cushion needle adjustment faces 

front (bearing retainer side) in standard 

assembly. Refer to mounting surface 

call out to specify other orientation. 

Example 1: two cushions, back facing — CB3; 

Example 2: four cushions, top and 

bottom facing — CQ24. 

ST ROKE ADJUSTOR** 

OO — Omit 

AIL — Counter-clockwise stroke 

(0-5º internal) 

AIR — Clockwise stroke (0-5º internal) 

AIB — Both ends of stroke (0-5º internal) 

AIQ — Four internal adjustors 

(two rack units only) 

AEL — Counter-clockwise stroke 

(0-30º external) 

AER — Clockwise stroke (0-30º external) 

AEB — Both ends of stroke (0-30º external) 

AEQ— Four external adjustors 


X — Special adjustors 

CUSHIONS & IN TERNAL ADJUSTORS** 

OO — Omit 

AICL — Counter-clockwise stroke 


AICR — Clockwise stroke (0-5º internal) 

AICB — Both ends of stroke 


AICQ — Four internal adjustors & cushions 


X—Special cushions & adjustors* 

150000 - 180 - AICQ - EB - MS13 - RKS - N - 

SPECIAL 

MODIFICATIONS 

AB — Air bleeds 

LS — Limit switch 




XC — Special coating 

PT — Position 

transducer drive 

SR — Spring return 

X—Special features* 


RKS — Single end, keyed (standard) 

SBS — Single end, external spline 

SQS — Single end, square 

RKD — Double end, both ends keyed 

SBD — Double end, both external spline 

SQD — Double end, both square 

SQH — Hollow, internal square 

SBH — Hollow, internal spline 

RKH — Hollow, keyed 

X—Special shaft* 

MOUN TING 

MS1 — Front face mount (bearing cap side) - standard 


MS3 — Back face mount - standard 






MXF — Foot mount 

X—Special configuration* 

PORTING 




NOTE: Side ports not available when cushions 

are specified. 

SEALS 

N—Nitrile (Buna-N) - standard 


NL — Nitrile (Buna-N) Lip Seals 

Standard 3700 & 7500 

X — Special seals* 

*NOTE: The letter “x” appearing as a suffix in each field of the 

model code requires additional information or a serial 

number for complete model identification, i.e. CBX on a 

double rack model would require identification as to which 

two cylinders include the cushions. 

*NOTE: When ordering a double rack model with stroke adjustors 

it is necessary to order end of stroke adjustors for both 

cylinders. When only one stroke adjustor is used for 

end of stroke adjustment on a double rack model the 

maximum operating pressure must be limited to 103 bar. 


CUSHIONS & EXTERNAL ADJUSTORS 

Not available on same end 

* * W h e n o r d e r i n g d o u b l e r a c k u n i t s w i t h c u s h i o n s a n d a d j u s t o r s , s p e c i f y l o c a t i o n b y c y l i n d e r n u m b e r. 


33

H Y D R A U L I C R O T A R Y A C T U A T O R S 

H Y D R A U L I C S E R I E S O H I O O S C I L L A T O R 

Tie Rods 

l PRE- STRESSED STEEL ALLOY 

Cylinders 

l HEAVY WALL STEEL TUBING 

l PRECISION HONED BORES 

End Caps 

l STEEL BAR OR DUCTILE IRON 

OPTIONAL CUSHIONS 

AND ADJUSTORS 

Piston Seals 


l HEAVY DUTY HYDRAULIC - 138 BAR MAX 

l TORQUE RANGE - 136 TO 54,007 NM 

@ 138 BAR 

l STANDARD ROTATIONS - 100, 190, 280, 370 DEGREES 



l TAPERED ROLLER BEARINGS - HIGH EXTERNAL 

LOAD CAPACITY 

l PISTON SEALS - PRE-LOADED LIPS SEALS 


l THROUGH SHAFT - POSITION 

INST RUMEN TATION DRIVE 

Pinion Shaft 

l HIGH STRENGTH STEEL ALLOY 

l RUGGED ONE PIECE CONSTRUCTION 


l 

l ZERO LEA KAGE RADIAL SEALS 

l O-RING & DOUBLE BACK-UP RINGS 

l ENERGIZED LIP SEAL 

SINGLE TOOTH LOAD CAPACITY 

Pistons and Racks 

l PATENTED FLOATING PISTON 

DESIGN (H251 AND UP) 

l ONE PIECE PISTON/RACK 

DESIGN (H6 TO H133) 


Bearings 

l BALL OR TAPERED ROLLER 

l SUBSTANTIAL EXTERNAL 

LOAD CAPACITY 

Gear Chamber 

l OIL-FILLED, 

ELASTOMER SEALED 

l NON-PRESSURIZED 

WITH RELIEF VALVE 




l COMBINED CUSHIONS & ST ROKE ADJUSTORS 

l BSPP 

l ALTERNATIVE MOUN TING AR RANGEMEN TS 

l ALTERNATIVE SHAFT CONFIGURATIONS 


l SIDE PORTED END CAPS 

l SPECIAL SEALS 

Housing 


l OPTIONAL MOUNTING SURFACES 

Keyway Timing 

l AIR BLEEDS (FOR HYDRAULIC SERVICE) 

l 12 O’CLOCK POSITION 

AT MID-STROKE OF ROTATION 

Gearing 


HARDENED STEEL 


LOAD CAPACITY 

34 




TABULATED DIMENSIONS ARE FOR BASE MODEL, STANDARD CONFIGURATION. THE SELECTION OF OPTIONS MAY ALTER ENVELOPE DIMENSIONS. 

REFER TO OPTIONS SECTION OR CONSULT FACTORY FOR ADDITIONAL INFORMATION. 

A B C* D E F G H J K L M N P R T 

MODEL NO. ROTATION (W x L) (W x H) 

NUMBER RACKS DEGREES mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm 

100 205.99 

190 265.94 

H6 1 280 325.88 M8 

370 385.57 76.07 B + E 25.30 6.35 4.76 22.23 X 

71.37 107.95 107.95 9.53 ONE N/A X 32.51 X 1/4-19 91.95 1 

100 205.99 76.20 PILOT 25.35 25.4 3.18 22.30 BSPP X 

190 265.94 ONLY 16mm 

H12 2 280 325.88 DP 

370 385.57 

100 260.10 

190 339.85 

H19 1 280 419.61 M12 

370 499.36 88.77 88.77 31.70 7.94 6.35 25.40 1/4-19 X 

87.38 139.70 136.65 11.68 110.74 X 41.40 X BSPP 111.25 1.5 

100 260.10 88.90 88.90 31.75 31.75 4.76 25.50 X 

190 339.85 13MM 

H37 2 280 419.61 DP 

370 499.36 

100 329.95 

190 441.71 M16 

H67 1 280 553.47 X 

370 665.99 126.87 126.87 50.75 12.7 9.53 44.48 2 

125.48 203.20 196.85 15.75 156.97 X 75.44 X 1/2-14 155.45 X 

100 329.95 127.00 127.00 50.80 50.8 6.35 44.53 BSPP 23MM 

190 441.71 DP 

H133 2 280 553.47 

370 665.99 

100 621.03 

190 833.88 

H251 1 280 1046.73 M20 

370 1257.05 215.77 215.77 76.15 19.05 19.05 76.23 3/4-14 X 

177.80 307.98 311.15 24.89 227.58 X 76.71 X X 254.00 2.5 

100 621.03 † 215.90 215.90 76.20 60.33 12.7 76.28 BSPP X 

190 833.88 29MM 

H501 2 280 1046.73 DP 

370 1257.05 

100 1006.09 

190 1379.47 

H1002 1 280 1914.65 M24 

370 2093.98 355.47 355.47 126.95 25.4 25.4 114.33 X 

279.40 488.95 482.60 30.99 341.63 X 174.75 X 1-11 431.80 1.5 

100 1006.09 355.60 355.60 127.00 123.8 19.05 114.48 BSPP X 

190 1379.47 38MM 

H2002 2 280 1914.65 DP 

370 2093.98 


† M O D E L H 2 5 1 / H 5 0 1 C = 3 0 7. 9 8 C / 2 = 1 5 8 . 7 5 

* D I M E N S I O N C I S A S C A S T F O R M O D E L S H 1 9 T H R U H 2 0 0 2 


35



TORQUE 

O U T P U T T O R Q U E ( N m ) @ V A R I O U S P R E S S U R E I N B A R * 

M O D E L T O R Q U E 

N U M B E R F A C T O R * 3 4 5 1 6 9 1 0 3 1 3 8 

H6 0.982 33.4 50.1 67.8 101 136 

H12 2.05 69.7 105 141 211 283 

H19 2.95 100 150 204 304 407 

H37 6.39 217 326 441 658 882 

H67 9.83 334 501 678 1010 1360 

H133 20.9 711 1070 1440 2150 2880 

H251 39.3 1340 2000 2710 4050 5420 

H501 84.3 2870 4300 5820 8680 11600 

H1002 181 6150 9230 12500 18600 25000 

H2002 391 13300 19900 27000 40300 54000 

DISPLACEMEN T 

D I S P L A C E M E N T ( L ) P E R S T R O K E 

M O D E L 

D I S P L A C E M E N T 

N U M B E R F A C T O R * 1 0 0 O 1 9 0 O 2 8 0 O 3 7 0 O 

H6 0.0002 0.02 0.038 0.056 0.074 

H12 0.0004 0.04 0.076 0.112 0.148 

H19 0.0006 0.06 0.114 0.168 0.222 

H37 0.001 0.1 0.19 0.28 0.37 

H67 0.002 0.2 0.38 0.56 0.74 

H133 0.004 0.4 0.76 1.12 1.48 

H251 0.008 0.8 1.52 2.24 2.96 

H501 0.016 1.6 3.04 4.48 5.92 

H1002 0.04 4 7.6 11.2 14.8 

H2002 0.08 8 15.2 22.4 29.6 


* O u t p u t To r q u e ( N m) = To r q u e 

Fa c t o r x O p e r a t i n g P r e s s u r e ( b a r) . 

E x a m p l e : M o d e l H 6 7 @ 6 9 b a r 

d e l i v e r s ( 9 . 8 3 x 6 9 ) = 6 7 8 N m t o r q u e . 

* D i s p l a c e m e n t ( L) = D i s p l a c e m e n t 

Fa c t o r x R o t a t i o n a l A r c ( d e g r e e s) . 

E x a m p l e : M o d e l H 6 7 @ 1 0 0 0 s w e e p s 

( . 0 0 2 x 1 0 0 ) = . 2 L . 

N O T E : E x c e e d i n g m a x i m u m p r e s s u r e m ay b e d e t r i m e n t a l t o t h e a c t u a t o r a n d m ay 

r e d u c e t h e c y c l e l i f e . C o n s u l t f a c t o r y f o r a p p l i c a t i o n s w h e r e m a x i m u m p r e s s u r e 

m ay b e e x c e e d e d . 




exact final position of rotation is best determined 

on the assembled machinery or when final position 

requirements may vary with different machine 

set ups. 

IN TERNAL ST ROKE ADJUSTORS 

Internal stroke adjustors permit 0-5º of adjustment. 

A threaded bushing within the end cap is set in position 

by a hex wrench inserted through the port and locked 

in place with a set screw. 

0- 5 º I N T E R N A L 

S T R O K E A D J U S T O R 

36 




EXTERNAL ST ROKE ADJUSTORS 

External stroke adjustors permit 0- 20º of adjustment. 

The adjustor stop, which contains the port, is set in 

position with a wrench on external flats and locked in 

place with a jam nut. 

IN TERNAL ST ROKE ADJUSTOR 

& ADJUSTABLE CUSHION 

The 0-5º internal stroke 

adjustor and the adjustable 

cushion are combined into 

a single option. The Ohio 

Oscillator design moves 

the cushion engagement 

position with end of stroke 

adjustment so the full 

engagement length of 

the cushion is retained at 

any stroke adjustment 

setting. Not available 

on standard H6/H12 

models-Consult factory. 

0- 2 0 º E X T E R N A L 

S T R O K E A D J U S T O R 

T Y P I C A L M O D E L S 

H 6 - H 3 7 

E X C E P T F I X E D 

O R I F I C E D E L E T E D 

CUSHIONS 

Cushions are designed to protect the actuator from 

damaging impact at the end of rotation. When 

properly sized and adjusted, cushions may also 

provide smooth deceleration, external engery 

absorption and noise reduction. 

Cushions trap fluid at the end of stroke by blocking 

or restricting the discharge port. The trapped fluid is 

diverted through a small needle valve which generates 

a back pressure on the discharge side of the piston. 

This back pressure resists the forces exerted on the 

rack by the propelling action of the actuator and the 

slowing of external mass which imparts energy into 

the actuator through the shaft. A check valve is 

included to bypass the cushion action at the start of 

rotation in the reverse direction. 


I N T E R N A L S T R O K E 

A D J U S T O R & 


EXTERNAL ADJUSTOR & FIXED CUSHION 

A combined fixed orifice cushion and stroke adjustor is 

available on Ohio Oscillator hydraulic actuators. Like 

the air units, setting the stroke adjustment does not 

affect cushion engagement length. However, the 

amount of cushion effect is not adjustable in this option. 

The fixed cushion orifice is sized to absorb the propelling 

torque developed on the working side of the actuator at 

speeds of less than 90º/sec and may not be sufficient to 

adequately stop additional inertial loads imparted 

through the shaft. 

Air bleeds not available with this option. 

E X T E R N A L S T R O K E 

A D J U S T O R & F I X E D C U S H I O N 

TYPICA L MODELS H67 -H2002 

EXCEPT FIXED ORIFICE DELETED 

D O U B L E R A C K A D J U S T O R & C U S H I O N C O M B I N A T I O N S 

DOUBLE RACK ADJUSTOR & CUSHION 

COMBINATIONS 

External stroke adjustors, (0- 20º) and adjustable 

cushions are not available on single rack hydraulic 

units. Double rack units can be specified with 

external stroke adjustors on one rack (or end) and 

adjustable cushions on the other rack (or end.) 

When independent adjustable cushions and external 

stroke adjustors are used, stroke reduction has a direct 

effect on cushion engagement. The cushion arc will 

be reduced by the amount of stroke reduction 

adjusted into the actuator. 

*NOTE: When ordering a double rack model with stroke 

adjustors it is necessary to order end of stroke adjustors 

for both cylinders. When only one stroke adjustor is 

used for end of stroke adjustment on a double rack 

model the maximum operating pressure must be 

limited to 69 bar. 


*CAUTION: Stroke Adjustors and Cushions should never be adjusted while the system is under pressure. 

*NOTE: Call out cylinder position of option. 


37




DIM H J K L M N P R S T U V X Y Z 

MODEL 

mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm 

H6 

M8 

& 107.95 69.85 44.45 X 15.75 152.40 114.30 88.90 133.35 114.30 114.30 9.65 88.90 95.25 11.18 

H12 1.25 

H19 

M12 

& 133.35 76.20 57.15 X 63.50 203.20 136.40 101.60 165.10 152.40 136.65 12.70 101.60 114.30 14.22 

H37 1.5 

H67 

M16 

& 196.85 117.35 88.90 X 22.10 266.70 203.20 152.40 234.95 190.50 203.20 16.00 165.10 165.10 17.53 

H133 2 

H251 

M20 

& 304.80 254.00 127.00 X 25.40 406.40 355.60 304.80 371.60 254.00 355.60 25.40 304.80 225.25 20.57 

H501 † 2.5 

H1002 

M24 

& 488.95 406.40 203.20 X 38.10 660.40 558.80 482.60 609.60 406.40 558.80 31.75 406.40 330.20 26.92 

H2002 3 

† M o d e l H 2 5 1 / H 5 0 1 H = 3 0 4 . 8 0 H / 2 = 1 5 8 .7 5 

B o d y n o t s y m m e t r i c a l - t o p d i m e n s i o n f r o m c e n t e r l i n e i s 1 4 6 . 0 5 

38 




H O L L O W K E Y E D 

M A L E S P L I N E 

S A E 1 0 B 

F E M A L E S P L I N E 

S A E 1 0 B 

S Q U A R E 

DIM A B C D E F G H J K L M N P Q R 

MODEL 


H6 22.23 4.75 25.35 21.69 3.89 25.38 21.82 3.91 19.05 

& 80.77 25.40 39.62 30.99 25.91 31.75 

H12 22.30 4.78 25.32 21.56 3.86 25.40 21.84 3.96 19.03 

H19 25.40 6.35 31.70 27.15 4.88 31.72 27.28 4.90 25.40 

& 110.74 31.75 56.64 68.33 32.00 39.62 

H37 25.50 6.38 31.65 27.02 4.85 31.75 27.33 4.95 25.27 

H67 44.48 9.53 50.72 43.56 7.82 50.75 43.64 7.85 38.10 

& 156.97 50.80 75.44 59.44 52.32 73.15 

H133 44.53 9.55 50.67 43.30 7.80 50.80 43.69 7.92 37.97 

H251 76.23 19.05 76.12 65.35 11.79 76.15 65.48 11.81 63.50 

& 226.06 76.20 118.11 76.02 77.72 74.68 

H501 76.28 19.01 76.07 65.23 11.76 76.28 65.61 11.89 63.37 

H1002 114.33 25.40 126.85 108.97 19.71 126.92 109.14 19.74 101.60 

& 342.14 114.81 165.10 127.00 128.52 172.21 

H2002 114.48 25.43 126.80 M AX 19.66 127.00 109.22 19.81 101.47 

N O I N T E R N A L 

R E L I E F D I A M E T E R 



39

P O S I T I O N I D E N T I F I C A T I O N & P O R T I N G 



the location of cushions, cushion adjustments, side ports 

and mountings. 




actuator is at mid-rotation (applies to 

standard keyway location only) 


MS4 - Top surface - opposite bottom surface 

P O R T S - H Y D R A U L I C R O T A R Y A C T U A T O R S 

S t a n d a r d a n d o p t i o n a l p o r t c o n f i g u r a t i o n s f o r 

O h i o O s c i l l a t o r h y d r a u l i c r o t a r y a c t u a t o r s . 



below. On double rack units the upper left hand 

cylinder end is designated as No. 1. Continuing 

clockwise, the upper right hand cylinder is No. 2, the 

lower right hand cylinder end is No. 3, and the lower 

left hand cylinder end is No. 4. 

On single rack Hydraulic units the lower rack is used. 

The right cylinder end is No. 3 and the left cylinder 

end is No. 4. 

NOTE: On model H251 the upper rack is used therefore 

the right cylinder end is No. 2 and the left 

cylinder end is No. 1. 

EXTERNA L STROKE ADJUSTORS 

SIDE PORT 

RECOMMENDED M AXIMUM PORT SIZE* M AXIMUM PORT SIZE* 

STANDA RD TUBE SIZE 

MODEL BSPP PORT O.D. (mm) BSPP BSPP 

H6 

H12 

G 1/4 - 19 4.76 G 1/8-28 G 1/8-28 

H19 

H37 

G 1/4 - 19 6.35 G 1/4-19 G 1/8-28 

H67 

H133 

G 1/2 - 14 15.9 G 1/2-14 G 3/8-19 

H251 

H501 

G 3/4 - 14 19.1 G 3/4-14 G 1/2-14 

H1002 

H2002 

G 1-11 25.4 G 1-11 G 3/4-14 

* W h e n u s i n g s i d e p o r t s c o n s u l t f a c t o r y f o r e n v e l o p e 

d i m e n s i o n a l c h a n g e s t h a t m ay o c c u r. 

N O T E : C o n s u l t f a c t o r y f o r s p e c i a l p o r t i n g r e q u i r e m e n t s . S i z e s s h o w n f o r 

e x t e r n a l s t r o k e a d j u s t o r s a n d s i d e p o r t s a r e m a x i m u m s t a n d a r d p o r t s i z e s . 

40 




SERIES H 

TORQUE 

OUTPUT NUMBER 

MODEL AT 138 BAR OF RACKS 

6 138 Nm 1 

12 283 Nm 2 

19 407 Nm 1 

37 881 Nm 2 

67 1356 Nm 1 

133 2881 Nm 2 

251 5423 Nm 1 

501 11637 Nm 2 

1002 24970 Nm 1 

2002 54007 Nm 2 


100 — 100º 

190 — 190º 

+/-1º 

280 — 280º 

370 — 370º 


CUSHIONS 

OO — Omit 

CL — CCW stroke - right end cap 

CR — CW stroke - left end cap 

CB — Both ends of stroke, one each 

CQ — Four cushions (two rack units only) 

NOTE: Cushion needle adjustment faces front (bearing 

cap side) in standard assembly. Refer to mounting 

surface call out to specify other orientation. 

Example 1: two cushions, back facing — CB3; 

Example 2: four cushions, top and 

bottom facing — CQ24. 

ST ROKE ADJUSTOR* 

OO — Omit 

AIL — Counter-clockwise stroke-right end cap 

(0-5º internal), one 

AIR — Clockwise stroke left end cap (0-5º internal), one 

AIB — Both ends of stroke (0-5º internal), each one 

AIQ — Four internal adjustors (two rack units only) 

AEL — Counter-clockwise stroke (0-20º external), one 

AER — Clockwise stroke (0- 20º external), one 

AEB — Both ends of stroke (0- 20º external), each one 

AEQ — Four external adjustors (two rack units only) 

0-5º ADJUSTORS & ADJUSTABLE CUSHIONS 

OO — Omit 

AICL — Counter-clockwise stroke - right end cap 

(0-5º internal), one 

AICR — Clockwise stroke - left end cap (0-5º internal), one 

AICB — Both ends of stroke (0-5º internal) each one 

AICQ — Four internal adjustors & cushions 


0- 20º ADJUSTORS & FIXED ORIFICE CUSHIONS 

OO — Omit 

AECL — Counter-clockwise stroke - right end cap 

(0- 20º external), one 

AECR — Clockwise stroke - left end cap 

(0- 20º external), one 

AECB — Both ends of stroke (0- 20º external) each one 

AECQ — Four external adjustors & cushions 


NOTE: Fixed orifice cushions are sized to decelerate 

propelling force at speeds slower than 90º/sec only, 

may not be adequate to decelerate large kinetic or 

gravitational loads. 

H67 - 190 - AICB - EB - MS1 - SBH - N - 

SPECIAL 

MODIFICATIONS 

AB — Air bleeds 




XP — Special coating 

PT — Position 

transducer drive 

LS — Limited switch 

SEALS 

N—Nitrile (Buna-N) 


X—Special seals 


RKS — Round, keyed single (standard) 

RKD — Round, keyed, double 

RKH — Round, keyed, hollow 

SBS — Spline (SAE 10B) single 

SBD — Spline, double 

SBH — Spline, hollow 

SQS — Square, single 

SQD — Square, double 


MOUN TING 

MS1 — Front face mount (bearing cap side) - standard 









PORTING 




NOTE: Side port position faces bottom (rack side of shaft on single 

rack units) or top and bottom (on double rack units) in 

standard assembly. Refer to mounting surface call out to 

specify other orientation. EXAMPLE: EB1 

*NOTE: Models with external stroke adustors, consult factory 

if air bleeds or side ports are required. Not available 

on all models 


NOTE: The letter “X” appearing as a suffix in the model code 

requires additional information or serial number for 

complete model identification. 


41

H E A V Y D U T Y H Y D R A U L I C 

H Y D R A U L I C H S E R I E S O H I O O S C I L L A T O R 


l HEAVY DUTY HYDRAULIC - 207 BAR MAX 

l TORQUE RANGE - 113,000 TO 5,650,000 NM 

@ 207 BAR 

l STANDARD ROTATIONS - 90, 180, 270, 360 DEGREES 



l BEARINGS - CUSTOM SELECTED TO APPLICATION 


l HOLLOW SHAFT - COMPACT COUPLING 

AND ALIGNMEN T 




l TIE ROD OR MILL-TYPE CYLINDERS 


l CUSTOM MOUN TING AR RANGEMEN TS 

l CUSTOM SHAFT CONFIGURATION 

l CUSTOMER END CAP VALVES AND PORTS 

l SELF-CON TAINED POWER UNITS 

42 


H Y D R A U L I C H D S E R I E S


TABULATED DIMENSIONS ARE FOR BASE MODEL, STANDARD 

CONFIGURATION. THE SELECTION OF OPTIONS MAY ALTER ENVELOPE 

DIMENSIONS. REFER TO OPTIONS SECTION OR CONSULT FACTORY 

FOR ADDITIONAL INFORMATION. 

A B C D E F G H J K 


NUMBER DEGREES cm cm cm cm cm cm cm cm cm cm 

1HH 

1.5HH 

2HH 

3HH 

4HH 

5HH 

6HH 

7HH 

8HH 

9HH 

10HH 

15HH 

20HH 

25HH 

30HH 

40HH 

50HH 

90 102.24 

180 144.78 

270 187.33 

360 229.87 

90 121.92 

180 170.18 

270 218.44 

360 265.43 

90 134.62 

180 190.50 

270 246.38 

360 302.26 

90 134.62 

180 190.50 

270 246.38 

360 302.26 

90 152.40 

180 215.90 

270 279.40 

360 342.90 

90 157.48 

180 228.60 

270 299.72 

360 373.38 

90 171.45 

180 251.46 

270 331.47 

360 411.48 

90 189.23 

180 278.13 

270 367.03 

360 454.66 

90 193.04 

180 289.56 

270 386.08 

360 482.60 

90 203.20 

180 307.34 

270 411.48 

360 515.62 

90 215.9 

180 327.66 

270 439.42 

360 551.18 

90 259.08 

180 403.86 

270 548.64 

360 690.88 

90 280.06 

180 418.34 

270 556.62 

360 694.99 

90 302.18 

180 452.45 

270 602.97 

360 753.01 

90 321.39 

180 480.97 

270 640.56 

360 800.18 

90 374.90 

180 566.42 

270 757.94 

360 949.43 

90 428.40 

180 651.84 

270 875.28 

360 1098.70 

36.83 36.51 18.42 2.54 X 33.97 3.81 74.93 81.92 5.72 

41.91 41.91 20.32 3.18 X 39.37 3.81 83.82 91.44 5.72 

47.63 48.26 24.13 3.81 X 36.83 4.45 95.89 104.78 6.35 

P E R C U S T O M E R S P E C I F I C A T I O N S P E R C U S T O M E R S P E C I F I C A T I O N S 

51.44 53.34 24.77 2.54 X 40.64 5.08 106.05 116.21 7.62 

57.79 59.69 28.58 3.81 X 46.99 5.72 118.75 130.18 8.89 

64.14 63.50 31.75 3.81 X 46.99 5.72 127.64 139.07 8.89 

66.04 64.77 34.29 4.45 X 54.61 6.35 133.35 146.05 9.53 

71.12 67.31 38.10 5.08 X 55.88 6.99 142.24 156.21 10.16 

76.20 67.31 40.64 6.35 X 55.88 6.99 148.59 161.93 10.16 

81.28 67.31 45.72 6.35 X 46.99 7.62 154.94 170.18 11.43 

109.22 71.12 50.80 6.35 X 55.88 7.62 160.02 175.26 11.43 

109.22 71.12 55.88 6.35 X 55.88 8.89 190.50 208.28 12.70 

93.98 87.63 63.50 6.99 X 87.63 12.70 203.20 228.60 12.70 

104.14 90.17 65.58 6.99 X 90.17 15.24 210.82 241.30 12.70 

111.76 96.52 73.66 6.99 X 96.52 16.51 220.98 254.00 12.70 

132.08 100.33 81.28 7.62 X 100.33 17.78 248.92 284.48 12.70 

152.40 100.33 93.98 7.62 X 100.33 20.32 274.32 314.96 12.70 

H Y D R A U L I C H S E R I E S O H I O O S C I L L A T O R 

H Y D R A U L I C H D S E R I E S 


43


H Y D R A U L I C S E R I E S H H O H I O O S C I L L A T O R 

TORQUE 

O U T P U T T O R Q U E ( N m ) A T V A R I O U S P R E S S U R E S I N B A R 

MODEL 

TORQUE* 

NUMBER FACTOR 69 103 138 172 207 

1HH 546 37661 56219 75323 93880 112984 

1.5HH 819 56492 84329 112985 140821 169477 

2HH 1092 75323 112439 150646 187762 225969 

3HH 1637 112985 168658 225969 281643 338954 

4HH 2183 150646 224878 301293 375524 451939 

5HH 2729 188308 281097 376616 469405 564924 

6HH 3275 225969 337317 451939 563286 677908 

7HH 3821 263631 393536 527262 657167 790893 

8HH 4367 301293 449756 602585 751048 903878 

9HH 4912 338954 505975 677909 844930 1016863 

10HH 5458 376616 562195 753232 938811 1129848 

15HH 8187 564924 843292 1129849 1408216 1694772 

20HH 10916 753232 1124390 1506464 1877622 2259696 

25HH 13646 941540 1405487 1883080 2347027 2824620 

30HH 16375 1129848 1686585 2259696 2816433 3389544 

40HH 21833 1506464 2248780 3012929 3755244 4519393 

50HH 27291 1883080 2810975 3766161 4694055 5649241 

* O u t p u t To r q u e ( N m) = To r q u e Fa c t o r x O p e r a t i n g P r e s s u r e ( b a r) . 

E x a m p l e : M o d e l 1 5 H H @ 1 3 8 b a r d e l i v e r s ( 8 1 8 7 x 1 3 8 ) = 1 1 2 9 8 4 8 N m t o r q u e . 

MODEL DISPLACEMENT DISPLACEMENT ( L) PER STROKE* 

MODEL 

NUMBER 

DISPLACEMENT 

FACTOR* 90º 180º 270º 360º 

1HH 0.114 10.2 20.4 30.7 40.9 

1.5HH 0.151 13.6 27.3 40.9 54.5 

2HH 0.189 17.0 34.1 51.1 68.1 

3HH 0.303 27.3 54.5 81.8 109.0 

4HH 0.416 37.5 75.0 112.4 149.9 

5HH 0.530 47.7 95.4 143.1 190.8 

6HH 0.606 54.5 109.0 163.5 218.0 

7HH 0.719 64.7 129.5 194.2 258.9 

8HH 0.871 78.4 156.7 235.1 313.4 

9HH 0.946 85.2 170.3 255.5 340.7 

10HH 1.060 95.4 190.8 286.2 381.6 

15HH 1.476 132.9 265.7 398.6 531.5 

20HH 2.196 197.6 395.2 592.8 790.4 

25HH 2.536 228.3 456.5 684.8 913.0 

30HH 2.990 269.1 538.3 807.4 1076.6 

40HH 4.467 402.0 804.0 1206.0 1608.0 

50HH 5.186 466.7 933.5 1400.2 1867.0 

* D i s p l a c e m e n t ( l i t e r s) = D i s p l a c e m e n t Fa c t o r x R o t a t i o n a l A r c ( d e g r e e s) . 

E x a m p l e : 9 M x 2 7 0 º d i s p l a c e s ( . 9 4 6 x 2 7 0 ) = 2 5 5 . 5 L . 

N O T E : E x c e e d i n g m a x i m u m p r e s s u r e m ay b e d e t r i m e n t a l t o t h e a c t u a t o r a n d m ay r e d u c e t h e 

c y c l e l i f e . C o n s u l t f a c t o r y f o r a p p l i c a t i o n s w h e r e m a x i m u m p r e s s u r e m ay b e e x c e e d e d . 

44 


H Y D R A U L I C H S E R I E S

M S E R I E S A C T U A T O R S 

S P E C I A L R O T A R Y A C T U A T O R D E S I G N S F O R O E M A P P L I C A T I O N S 

P E R F O R M A N C E 

CUSTOM SPECIFICATION OF 

ACTUATOR PERFORMANCE CRITERIA 

l TORQUE OUTPUT 

l SPEED REGULATION 

l SUPER CUSHIONS 

l SPECIAL ROTATIONS 

l MULTIPLE POSITIONS 

l AIR/OIL TANDEM 

P A C K A G I N G 

CUSTOM DESIGNS FOR ACTUATOR ENVELOPE 

AND IN TERFACE 

l COMPACT SIZES 

l MOUN TING FLANGES 

l SPECIAL SHAFTING 

l MILL-TYPE CYLINDERS 

l DUAL CONCEN T RIC SHAFTS 

l IN TEGRAL VALVING 

I N T E G R A T I O N 

CUSTOM ENGINEERED TO INCLUDE MACHINE 

ELEMEN TS WITHIN THE ACTUATOR 

l SHAFT BEARINGS 

l T RUNION DRIVE 

l BASKET ROTATE 

l SWING CASE 

l POWER HINGE 

O n e o f m a ny s e r i e s M 

a c t u a t o r c o n f i g u r e d 

s p e c i f i c a l l y f o r 

c u s t o m e r d e f i n e d 

m a c h i n e r e q u i r e m e n t s . 

U s e c o p y o f A p p l i c a t i o n 

S p e c i f i c a t i o n G u i d e 

t o o u t l i n e c u s t o m e r 

p e r f o r m a n c e a n d 

p a c k a g i n g s p e c i f i c a t i o n s . 

M E G A T O R K S E R I E S O H I O O S C I L L A T O R 

l STEERING DRIVE 

M E G A T O R K M O O G F L O - T O R K 

45

H Y D R A U L I C R O T A R Y A C T U A T O R 

M E G A T O R K 

Cylinder Heads 

l HEAVY STEEL SECTION 

l I.D. STATIC SEAL TO PREVENT 

SEAL EXTRUSION 

Low Pressure Relief Valve 

l PROTECT HOUSING FROM 

OVER PRESSURIZATION 

l SIGNALS NEED FOR DYNAMIC 

SEAL REPLACEMENT 

Rack Bearings 

l SUPPORT FULL RACK LOAD 

l MINIMIZE BACKLASH 

Racks 

l HEAT TREATED HIGH 

STRENGTH ALLOY STEEL 

Tie Rods 


ALLOY STEEL 

l PRE-STRESSED 

Bearing Cap 

l PILOTED STEEL OR 

DUCTILE IRON 

Pinion 

l SINGLE KEYED HOLLOW SHAFT 

Bearings 

l HEAT TREATED ALLOY STEEL 

l PRECISION BEARINGS 

l SUBSTANTIAL EXTERNAL LOAD CAPACITY 

Housing 

l FABRICATED STEEL 

OR DUCTILE IRON 

Cylinder Tubes 

l CUSTOM MATERIAL 

Pistons 

l PATENTED FLOATING DESIGN 

l SELF-ALIGNING 


O P T I O N A L F E A T U R E S 

l HEAVY DUTY HYDRAULIC - 207 BAR 

l TORQUE RANGE - 113000 TO 5,650,000 NM 




l PISTON SEALS - PRE-LOADED LIP SEALS 


l HOLLOW SHAFT - ELIMINATES COSTLY COUPLING 

l COMPACT DESIGN - HIGHEST TORQUE PER CU. FT. 

OF SPACE 

l TEMPERATURE RANGE - -18 TO 93 O 

C 


l TIE ROD OR MILL TYPE CYLINDERS 


l CUSTOM MOUN TING AR RANGEMEN TS 

l CUSTOM END CAP VALVES AND PORTS 

l SELF CON TAINED HYDRAULIC POWER UNITS 

l CUSTOM MOUN TINGS 

l CUSTOM SHAFT CONFIGURATION 

l CUSTOM DESIGNS FOR PRESSURE, 

TORQUE, AND DIMENSIONAL REQUIREMEN TS 

l CUSTOM COR ROSION PROTECTION 

l DESIGNS FOR 4:1 PRESSURE VESSEL 

SAFETY FACTOR 

46 


M E G A T O R K

M E G A T O R K A P P L I C A T I O N 

FLO-TORK Megatork actuators are designed to meet the needs of each individual application. Because of this we 

have included the following information sheet to help us in assisting you in sizing the correct actuator for your 

application. Please fill in the data sheet and forward it to us for review. We will contact you to discuss the specifics 

of your application. 

COMPANY: 

ADDRESS: 

CITY: 

ZIP: 

PHONE NUMBER: 

FAX NUMBER: 

NAME: 

E-MAIL: 


A P P L I C A T I O N I N F O R M A T I O N : 

TORQUE REQUIRED: 

ROTATION REQUIRED: 

OPERATING PRESSURE (BAR): 

DIMENSIONAL DATA: UNITS OF MEASURE: MET RIC: 

A: B: C: 

F: G: J: 

L: M: 

Please fill in the envelope dimensions that you require for your specific application to assist us in sizing your actuator. 

A P P L I C A T I O N D E S C R I P T I O N : 

M E G A T O R K M O O G F L O - T O R K 

47



OUTPUT TORQUE (Nm) @ VA RIOUS PRESSURES IN BA R* 

MODEL 

NUMBER 

TORQUE 

FACTOR* 69 103 138 172 207 

1M 546 37661 56219 75323 93880 112984 

1.5M 819 56492 84329 112985 140821 169477 

2M 1092 75323 112439 150646 187762 225969 

3M 1637 112985 168658 225969 281643 338954 

4M 2183 150646 224878 301293 375524 451939 

5M 2729 188308 281097 376616 469405 564924 

6M 3275 225969 337317 451939 563286 677908 

7M 3821 263631 393536 527262 657167 790893 

8M 4367 301293 449756 602585 751048 903878 

9M 4912 338954 505975 677909 844930 1016863 

10M 5458 376616 562195 753232 938811 1129848 

15M 8187 564924 843292 1129848 1408216 1694772 

20M 10916 753232 1124390 1506464 1877622 2259696 

25M 13646 941540 1405487 1883080 2347027 2824620 

30M 16375 1129848 1686585 2259696 2816433 3389544 

40M 21833 1506464 2248780 3012929 3755244 4519393 

50M 27291 1883080 2810975 3766161 4694055 5649241 

* O u t p u t To r q u e ( N m) = To r q u e Fa c t o r x O p e r a t i n g P r e s s u r e ( b a r) E x a m p l e : 

M o d e l 9 M @ 1 0 3 b a r d e l i v e r s (4 9 1 2 x 1 0 3 ) = 5 0 5 9 7 5 N m t o r q u e . 

MODEL DISPLACEMENT DISPLACEMENT ( L) PER STROKE* 

MODEL 

NUMBER 

DISPLACEMENT 

FACTOR* 90º 180º 270º 360º 

1M 0.114 10.2 20.4 30.7 40.9 

1.5M 0.151 13.6 27.3 40.9 54.5 

2M 0.189 17.0 34.1 51.1 68.1 

3M 0.303 27.3 54.5 81.8 109.0 

4M 0.416 37.5 75.0 112.4 149.9 

5M 0.530 47.7 95.4 143.1 190.8 

6M 0.606 54.5 109.0 163.5 218.0 

7M 0.719 64.7 129.5 194.2 258.9 

8M 0.871 78.4 156.7 235.1 313.4 

9M 0.946 85.2 170.3 255.5 340.7 

10M 1.060 95.4 190.8 286.2 381.6 

15M 1.476 132.9 265.7 398.6 531.5 

20M 2.196 197.6 395.2 592.8 790.4 

25M 2.536 228.3 456.5 684.8 913.0 

30M 2.990 269.1 538.3 807.4 1076.6 

40M 4.467 402.0 804.0 1206.0 1608.0 

50M 5.186 466.7 933.5 1400.2 1867.0 

* D i s p l a c e m e n t ( l i t e r s) = D i s p l a c e m e n t Fa c t o r x R o t a t i o n a l A r c ( d e g r e e s) . 

E x a m p l e : 9 M x 2 7 0 º d i s p l a c e s ( . 9 4 6 x 2 7 0 ) = 2 5 5 . 5 L . 

48 


M E G A T O R K

R O T A R Y A C T U A T O R D E S I G N S F O R S P E C I A L A P P L I C A T I O N S 

P E R F O R M A N C E 

CUSTOM DESIGNS TO MEET PERFORMANCE CRITERIA 

l TORQUE OUTPUT 

l SPEED REGULATION 

l HIGH CAPACITY CUSHIONS 

l SPECIAL ROTATIONS 

l MULTIPLE POSITIONS 

l AIR/OIL TANDEM 

l HIGH CYCLE 

S P E C - T O R K 

E Q U I P M E N T I N T E G R A T I O N 

CUSTOM ENGINEERED TO MEET SPECIFIC 

MACHINERY REQUIREMEN TS 

l T RUNION DRIVE 

l BASKET ROTATION 

l SWING GATE 

l POWER HINGE 

l POWER STEERING 

l ELECT RO-HYDRAULIC 

l REMOTE OPERATION 

S P E C I A L C O N F I G U R A T I O N S 

CUSTOM DESIGNS FOR ACTUATOR 

DIMENSIONAL REQUIREMEN TS 

l COMPACT SIZES 

l MOUN TING FLANGES 

l SPECIAL SHAFTING 

l MILL-TYPE CYLINDERS 

l DUAL CONCEN T RIC SHAFTS 

l IN TEGRAL VALVING 

FOR ASSISTANCE IN MEETING YOUR SPECIFIC NEEDS, 

PLEASE FORWARD A COMPLETED APPLICATION 

SPECIFICATION GUIDE (PAGE 62 OF THIS CATALOG) 

TO MOOG FLO-TORK, INC. 

S P E C T O R K M O O G F L O - T O R K 

49

D I M E N S I O N S - C U S H I O N S A N D S T R O K E A D J U S T O R S 

D I M E N S I O N S 

A S E R I E S P N E U M A T I C - E N V E L O P E D I M E N S I O N S - 

C U S H I O N S A N D S T R O K E A D J U S T O R S 

MODEL 

NUMBER 

STANDA RD ‘A’ DIM “A A” ADJUSTOR* “AC” CUSHION* 

94º 184º 364º ADD-ON ADD-ON 

mm mm mm mm mm 

A100 114.81 139.70 199.39 25.65 29.46 

A500 180.59 244.60 372.11 22.61 26.42 

A1000 256.03 335.79 468.38 33.53 16.76 

A4000 354.33 481.58 739.39 37.59 24.38 

A10000 470.92 649.48 1008.38 53.09 24.38 

* “A A” ( A d j u s t o r) a n d “A C ” ( C u s h i o n) d i m e n s i o n s a r e i n d i v i d u a l d i m e n s i o n s a n d a r e t o b e 

a d d e d t o t h e s t a n d a r d ‘A’ d i m e n s i o n f o r e a c h a d j u s t o r o r c u s h i o n . 

H Y D R A U L I C S E R I E S - E N V E L O P E D I M E N S I O N S - 

C U S H I O N S A N D S T R O K E A D J U S T O R S 

STANDA RD ‘A’ DIM “A A” ADJUSTOR* “AC” CUSHION* 

MODEL 

NUMBER 

900 

1800 

3700 

7500 

15000 

30000 

75000 

150000 

300000 

600000 

90º 180º 360º ADD-ON ADD-ON 

mm mm mm mm mm 

160.27 208.03 303.78 25.65 21.34 

215.65 285.50 424.94 45.97 

THESE DIM 

324.87 436.63 660.15 60.71 

A RE THE SA ME 

AS STANDA RD 

624.84 848.11 1295.15 47.50 

‘A’ DIM. 

887.22 1166.62 1725.42 59.44 

* “A A” ( A d j u s t o r) a n d “A C ” ( C u s h i o n) d i m e n s i o n s a r e i n d i v i d u a l d i m e n s i o n s a n d a r e 

t o b e a d d e d t o t h e s t a n d a r d ‘A’ d i m e n s i o n f o r e a c h a d j u s t o r o r c u s h i o n . 

50 


D I M E N S I O N S

U N I T M A S S 

A S E R I E S P N E U M A T I C 

94º 184º 364º 

MODEL 

NUMBER Kg Kg Kg 

A100 1.36 1.36 1.81 

A500 3.63 4.08 5.44 

A1000 6.35 7.26 9.98 

A4000 21.32 24.95 33.11 

A10000 43.09 48.99 61.69 


90º 180º 360º 

MODEL 

NUMBER Kg Kg Kg 

900 3.63 4.54 4.99 

1800 4.08 4.99 5.44 

3700 8.16 9.07 11.79 

P S E R I E S P N E U M A T I C 

94º 184º 

MODEL 

NUMBER Kg Kg 

P300 1.81 2.27 

P1000 4.08 5.90 

P2000 7.71 11.34 

P4000 19.05 24.95 

P8000 26.76 34.47 

P10000 32.21 41.73 


7500 9.98 10.89 12.70 

15000 27.67 29.03 33.57 

30000 35.38 36.74 44.0 

75000 122.47 130.64 146.51 

150000 149.69 163.75 180.08 

300000 427.74 459.50 527.08 

600000 518.92 583.33 717.60 

N O T E : A p p r o x i m a t e w e i g h t s s h o w n 

a b o v e a r e b a s e d 

o n s t a n d a r d m o d e l s . 

U N I T M A S S M O O G F L O - T O R K 

51

D I M E N S I O N S - C U S H I O N S A N D S T R O K E A D J U S T O R S 

D I M E N S I O N S O H I O O S C I L L A T O R 

A S E R I E S - E N V E L O P E D I M E N S I O N S - C U S H I O N S A N D S T R O K E A D J U S T O R S 

STANDA RD ‘A’ DIM “A A” ADJUSTOR* “A A” CUSHION* 

MODEL 

100º 190º 280º 370º 100º 190º 280º 370º NON-CRUSH CRUSH 

NUMBER mm mm mm mm mm mm mm mm mm mm 

A6.2 287.53 317.50 407.16 436.88 22.10 22.10 22.10 22.10 41.15 52.83 

A6.3 290.83 320.80 410.21 440.18 20.57 20.57 20.57 20.57 38.10 52.83 

A19.3 336.55 376.43 499.11 542.04 20.57 20.57 20.57 19.05 38.10 52.83 

A19.4 339.09 378.97 501.40 546.10 19.30 19.30 19.30 17.02 35.56 52.83 

A67.4 428.50 484.33 656.59 712.47 19.30 19.30 17.02 17.02 35.56 52.83 

A67.6 440.44 496.32 670.05 725.93 20.57 20.57 17.27 17.27 23.88 52.83 

A250.6 653.03 835.41 1075.18 1257.81 

A250.8 653.03 835.41 1075.18 1257.81 

A250.10 762.00 866.65 1184.15 1336.55 

C o n s u l t Fa c t o r y 

C o n s u l t 

Fa c t o r y 

* “A A” ( A d j u s t o r) a n d “A C ” ( C u s h i o n) d i m e n s i o n s a r e i n d i v i d u a l d i m e n s i o n s a n d a r e t o b e 

a d d e d t o t h e s t a n d a r d ‘A’ d i m e n s i o n f o r e a c h a d j u s t o r o r c u s h i o n . 

H S E R I E S - E N V E L O P E D I M E N S I O N S - C U S H I O N S A N D S T R O K E A D J U S T O R S 

STANDA RD ‘A’ DIM “A A” ADJUSTOR* “A A” CUSHION* 

MODEL 

100º 190º 280º 370º ADD-ON CUSHIONS 

NUMBER mm mm mm mm mm 

H6 

H12 

H19 

H37 

H67 

H133 

H251 

H501 

H1002 

H2002 

205.99 265.94 325.88 385.51 37.34 

260.10 339.85 419.61 499.37 46.23 

329.95 441.71 553.47 665.99 51.05 

621.03 833.88 1046.75 1257.05 48.26 

1006.09 1379.47 1914.65 2093.98 59.69 

T H E S E D I M . 

A R E T H E S A M E 

A S S T A N D A R D 

‘A’ D I M . 

* “A A” ( A d j u s t o r) d i m e n s i o n i s t o b e 

a d d e d t o t h e s t a n d a r d ‘A’ d i m e n s i o n f o r e a c h a d j u s t o r. 

52 


D I M E N S I O N S


A S E R I E S - U N I T M A S S 

100º 190º 280º 370º 

MODEL 

NUMBER Kg Kg Kg Kg 

A6.2 5.44 6.35 7.26 8.16 

A6.3 6.80 7.71 8.62 9.53 

A19.3 9.98 11.34 12.70 14.06 

A19.4 12.25 13.61 14.97 16.33 

A67.4 34.02 38.56 47.63 54.43 

A67.6 38.56 43.09 52.16 56.70 

A250.6 113.40 124.73 136.08 147.42 

A250.8 136.08 147.42 158.76 170.10 

A250.10 181.44 192.78 204.12 215.46 

H S E R I E S - U N I T M A S S 

100º 190º 280º 370º 

MODEL 

NUMBER Kg Kg Kg Kg 

H6 5.90 6.80 7.71 8.61 

H12 8.16 9.07 9.98 10.89 

H19 11.79 13.15 14.06 14.97 

H37 18.14 23.13 24.95 26.31 

H67 43.09 49.90 54.43 58.97 

H133 54.43 61.24 77.11 86.18 

H251 129.28 140.62 158.76 170.10 

U N I T M A S S O H I O O S C I L L A T O R 

H501 170.10 181.44 249.48 260.82 

H1002 453.60 498.96 635.04 680.40 

H2002 589.68 635.04 771.12 816.48 

U N I T M A S S M O O G F L O - T O R K 

53

A P P L I C A T I O N E X A M P L E S , R O T A R Y M O T I O N 

E N G I N E E R I N G 

The torque required to put a load into motion by a 

rotary actuator is the sum of the static torque, the 

dynamic torque and the gravitational torque. Static 

torque is the torque of friction, dynamic torque is the 

torque required to accelerate to desired speed and 

gravitational torque is the torque necessary to lift a 

weight against gravity. It is suggested that an actuator 

with reserve capacity of at least 20 percent be selected 

to accommodate variations within the system. 

ROTATION IN VERTICAL PLANE 

The maximum torque required to rotate the weight (W) 

thru an angle Ø in a vertical plane will occur when the 

arm is horizontal. This torque is determined by the 

equation: T = Wr. If the arm mass is significant its effect 

on the torque required must be calculated. 

As the arm approaches vertical 

the required torque becomes 

less because the arm length (r) 

becomes shorter as a function 

of the sine of the angle. 

The torque required at any 

position can be determined by: T = Wr sin Ø 

HORIZON TAL ROTATION OF SUPPORTED WEIGHT 

The previous example does not include any 

considerations for friction. Friction Torque (T f ) can 

be determined by the product of the weight (W), 

the coefficient of friction (C f ) and the bearing 

radius (r b ). 

T f = W C f r b 

Bearing 

This is important because energy built up during 

uniform acceleration must be absorbed during 

deceleration by a build up of back pressure in the 

actuator cylinder. 

Since energy in must equal the energy out, if the rotary 

actuator is used to decelerate the load, any reduction in 

deceleration time will result in increased back pressure 

which may be damaging to the rotary actuator and 

other system components. In all circuits this back 

pressure must be absorbed into the existing system. 

Consider that acceleration energy equals torque times 

the angle of acceleration (T a θ a ). In terms of kinetic 

energy it is: 

E k = Jω 2 

2 

The deceleration torque required to stop the 

load is kinetic energy divided by the angle 

of deceleration: 

T d = Jω 2 

2θ d 

Since deceleration energy must equal acceleration 

energy (T d θ d =T a θ a ) and actuator pressure is 

proportional to torque, we can set up a simple 

example of angular travel and pressure. 

EXAMPLE: If a load is uniformly accelerated thru 

100º rotation at 69 bar, you can determine the 

deceleration pressure to stop the load in 80º by 

the following: 

100º x 69=Pressure to decelerate=86 bar 

80º 

ANOTHER EXAMPLE: Uniformly accelerate a load thru 165º 

rotation at 34.5 bar, then stop the motion within the 

last 15º of rotation: 

NOTE: (W) should include the weight of the turntable as 

well as the load. Torque (T f ) required to overcome 

friction must be added to the acceleration torque 

(T a ) prior to selecting the proper rotary actuator 

model. The friction torque can be subtracted from 

the deceleration torque if desired. 

HORIZON TAL ROTATION OF UNSUPPORTED WEIGHT 

The torque (T a ) required to accelerate (rotate) 

unsupported weight in a 

horizontal plane can 

be determined by: 

T a = J O< 

Where J = Wr 2 

g 

Angular acceleration (α) is usually uniform and can be 

determined by: 

α = (ω 2 - ω 1 ) 

Where ω= (θ 2 - θ 1 ) 

(t 2 -t 1 ) (t 2 -t 1 ) 

CAUTION: See Caution note on Page 31. 

DECELERATION 

Deceleration torque is often the least understood and 

in many cases the most important requirement to 

be considered. 

The time required to decelerate the load within a given 

angle of rotation should usually be longer than the time 

required to accelerate the same load to a required speed. 

165º x 34.5 bar=Pressure to decelerate=379 bar 

15º 

Accel.@ 34.5 bar 

Deceleration pressure of 379 bar to dissipate the 

kinetic energy during the last 15º of rotation may 

prove to be destructive to the system. 

Another example illustrates the use of flow control 

valves to control output flow. A mass accelerated 

through 40º at 138 bar, then moving at constant speed 

for 125º, will generate a destructive deceleration pressure 

of 368 bar to dissipate the kinetic energy within the last 

15º of rotation. 

40º x 138=Pressure to decelerate=368 bar 

15º 

Constant Speed 125º 

Accel. 

@ 138 bar 

Decel. 

@ 379 bar 

Decel. 

@ 368 bar 

In addition, since it is difficult and in many cases 

impractical to remove system pressure during 

deceleration, one must consider the torque developed 

by the system pressure while driving the load through 

the deceleration distance (rotation) in addition to the 

kinetic energy already existing. 

The optional MOOG FLO-TORK built-in cushions are 

designed to help decelerate the load during the last 15º 

of rotation. The deceleration pressure should not exceed 

the rated pressure of the rotary actuator model selected. 

54 


E N G I N E E R I N G

Q U A N T I T I E S A N D F O R M U L A S F O R R O T A R Y M O T I O N 

TORQUE is a force that produces rotation of a shaft. 

It is measured by the product of the force (F) and the 

perpendicular distance from the line of action of the 

force to the centerline of rotation (r). 

T = F r 

ROTATION results when an unbalanced torque acts on 

a body producing an angular acceleration. The torque 

to accelerate is the product of the body’s moment of 

inertia about its axis of rotation (J) and the angular 

acceleration (α). 

T = J α 

MOMEN T OF IN TERIA of a body is determined by the 

distribution of its mass about the axis of rotation. It 

tends to resist any change in angular velocity. 

J = mr 2 See table page 56 

ANGULAR ACCELERATION is the rate of change of 

angular velocity and is expressed in radians per second 

per second. If angular velocity changes from ω O at 

time O to ω t at time t in time (t), the average angular 

acceleration is: 

α = ω t - ω O 

t 

ANGULAR VELOCITY is the rate of angular rotation 

about an axis and is expressed in radians per second. 

If a body moves through a rotation of θ radians in a 

time of t seconds, the average angular velocity is: 

ω= θ t 

ANGULAR ROTATION is the arc traveled in rotary 

motion and can be expressed in degrees, revolutions 

or radians. One radian is the angle defined from the 

center of a circle by an arc that is equal in length to 

the radius. 

r -Arc length equal to radius 

1 revolution = 360 0 = 2π radians 

1 radian = 57.3 0 

KINETIC ENERGY is the energy of a mass in motion. 

It is a function of the moment of inertia (J) and the 

square of the angular velocity (ω) expressed as: 

E k = 1/2 J ω 2 

EQUATIONS FOR ANGULAR MOTION are analogous 

to those for linear motion: 

v = at s = 1/2at 2 v 2 = 2as 

ω = αt θ=1/2αt 2 ω 2 = 2αθ 

If v o and ω o denote the initial linear and angular 

velocity then 

v = v o + at s = v o t + 1/2at 2 v 2 = v 2 o + 2as 

ω = ω o + αt θ=ω o t + 1/2αt 2 ω 2 = ω 2 o + 2αθ 

ANALOGOUS LINEAR & ANGULAR QUAN TITIES 

Linear Displacements s s = θr Angular Displacement θ 

Linear Velocity v v = ωr Angular Velocity ω 

Linear Acceleration a a = αr Angular Acceleration α 

Mass (Inertia) m J = mr 2 Moment of Inertia J 

Force F T = Fr Torque T 

Linear: F = ma E k = 1/2mv 2 Work = Fs Power = Fv 

Angular: T = Jα E k = 1/2Jω 2 Work = Tθ Power = Tω 

DEFINITIONS 

Symbol 

Units of Measure 

a = Linear Acceleration m/s 2 

C f = Friction Coefficient 

dimensionless 

C T = Torque Coefficient Nm/bar 

E c = Cushion Energy Joules 

E f = Friction Energy Joules 

E g = Gravitational Energy Joules 

E k = Kinetic Energy Joules 

E p = Propelling Energy Joules 

E T = Total Energy Joules 

F = Force 

N 

g = Acceleration due to Gravity 9.81 m/s 2 

J = Moment of Inertia kg (m) 2 

m = Mass = W/g 

kg 

P = Pressure 

bar 

r = Radius 

m 

r a = Radius Arm Length m 

r b = Radius of Bearing m 

s = Linear Displacement 

m 

T = Torque 

Nm 

T a = Torque of Acceleration Nm 

T d = Torque of Deceleration Nm 

T f = Torque of Friction Nm 

T p = Torque of Propulsion Nm 

t = Time 

sec 

v = Linear Velocity 

m/s 

W = Weight 

N 

α = Angular Acceleration rad/sec 2 

θ = Angular Displacement rad 

θ a = Angle of Acceleration rad 

θ d = Angle of Deceleration rad 

Ø = Angle of Arm to Vertical 

deg 

Ø = Average Angle from Vertical deg 

ω = Angular Velocity 

rad/sec 


E N G I N E E R I N G M O O G F L O - T O R K 

55

M O M E N T O F I N E R T I A A N D C U S H I O N D A T A 


M O M E N T S O F I N E R T I A 

T Y P I C A L E X A M P L E S 

C U S H I O N D A T A P N E U M A T I C A C T U A T O R S 

ACTU ATOR CUSHION CUSHION 

MODEL TORQUE FACTOR DECEL A RC CAPACITY 

NUMBER C T θd Ec 

(Nm/Bar) (Rad) (Nm) 

A6.2 3.28 .67 37.8 

A6.3 7.21 .67 83.0 

A19.3 9.83 .50 84.7 

A19.4 17.3 .50 149 

A67.4 24.3 .36 150 

A67.6 55.1 .36 341 

A250.6 104 .28 506 

A250.8 187 .28 720 

A250.10 292 .28 844 

C U S H I O N D A T A H Y D R A U L I C A C T U A T O R S 

ACTU ATOR CUSHION CUSHION 

MODEL TORQUE FACTOR DECEL A RC CAPACITY 

NUMBER C T θd Ec 

(Nm/bar) (rad) (Nm) 

H6 .982 .20 54 

H12 2.05 .20 54* 

H19 2.95 .29 220 

H37 6.39 .29 220* 

H67 9.83 .34 802 

H133 20.9 .34 802* 

H251 39.3 .24 2110 

H501 84.3 .24 2110* 

H1002 181 .21 7863 

H2002 391 .21 7863* 

*PER CUSHION 

C U S H I O N N E E D L E A D J U S T M E N T 

CAUTION: Cushion needles should be set between 

one-half and one full turn from seated position. 







beyond the point where seal relief in the 



achieving optimum cushion performance. If 

the needle valve setting is too far open, cushion 

capacity will be reduced or rendered ineffective; 

if set too far closed, cushion action will 

generate shock and pressure spikes in excess of 

actuator rating. 

56 



C U S H I O N C A P A C I T Y A N D S I Z I N G 

High rotational velocity and/or large mass in rotary 

motion can cause damaging impact at the end of 

stroke. Deceleration and absorption of rotating system 

energy can be achieved with cushions, external shock 

absorbers or fluid circuit devices which reduce speed as 

the actuator approaches the end of travel. 

Cushions are the simplest design alternative, but 

consideration must be given to the cushion energy 

absorption capacity. Exceeding rated cushion capacity 

can reduce actuator life or result in severe actuator 

damage. To determine if a cushion is suitable for the 

application, calculate the total energy that must be 

absorbed and compare with the cushion capacity rating. 

ENERGY OF APPLICATION 

E k = Energy of mass in motion (kinetic energy) 

E k = 1/2 J ω 2 

E p = Propelling energy of actuator 

E p = P p C t θ d 

E g = Gravitational energy of lifting or lowering weight 

E g = Wr a θ d sinØ 

Total Energy, where: E t = E k + E p ± E g 

E g is added if weight is falling or E g is subtracted if 

weight is rising 

NOTE: If weight is rotating in horizontal plane, the 

gravitational energy is zero. 

HORIZON TAL ROTATIONAL DECELERATION 

Two 22.6 kg parts are positioned diametrically opposed 

on a 68 kg lb rotary transfer table which swings 

through 180º in a horizontal plane. The table radius is 

1.27 m in and the radius to the parts is 1.02 m 

Rotational velocity of the table as it enters the cushion 

deceleration arc is 80º/sec or (80÷57.3) 1.40 rad/sec. A 

model 3700 actuator operating at 103 bar has been 

selected to propel the load. 

VERTICAL ROTATIONAL DECELERATION 

A material handling rollover mechanism transfers a 45 kg 

machine part through 180º in a vertical plane from a 

9 o’clock to a 3 o’clock position. The radius arm to the part 

grippers is 1.02 m and the effective weight and 

radius of the arms and grippers can be approximated by two 

1.02 m long rods weighing 32 kg a piece. Rotational 

velocity of the mechanism as it enters the cushion 

deceleration arc is 40º/sec or (40÷57.3) 0.70 rad/sec. A 

Model 15000 actuator operating at 138 bar has been selected 

to propel the load. 

KINETIC ENERGY E k = 1/2 J ω 2 

Moment of Inertia J = J arm + J load 

J arm = 2 M a r 2 a = 2 (32 kg) (1.02 m) 2 = 22.2 kg m 2 

3 3 

J load = M I r 2 I = (45 kg) (1.02 m) 2 = 47 kg m 2 

J = J arm + J load = 22.2 + 47 = 69.2 kg m 2 

E k = 1/2 J ω 2 = 1/2 (69.2 kg m 2 ) (.70 rad/sec) 2 

= 16.9 kg m 2 = 16.9 Joules 

s 2 

PROPELLING ENERGY E p = P p C t θ d 

Torque Factor (C t ) for Model 15000 (8.19 Nm/bar) 

Deceleration Arc (θ d ) for Model 15000 (.34 rad) 

E p =P p C t θ d = (138 bar) (8.19 Nm/bar) (.34 rad) = 384 Joules 

GRAVITATIONAL ENERGY E g = Wr a θ d sinØ 

Wr a = 9.81 m [(45 kg)(1.02 m) + 2(32 kg)(1/2)(1.02m)] = 770 Nm 

s 2 

Deceleration Arc (Ø d ) for Model 15000 (0.34 rad or 19.6 o ) 

Ø=1/2 (Ø enter +Ø end ) 


KINETIC ENERGY E k = 1/2 J ω 2 

Moment of Inertia J = J table + J load 

J table = M t r 2 t = (68 kg) (1.27 m) 2 = 54.8 kg m 2 

2 2 

J load = M I r 2 I = (22.6 + 22.6 kg) (1.02 m) 2 = 47 kg m 2 

J = J table + J load = 54.8 + 47 = 101.8 kg m 2 

Ek = 1/2 J ω 2 = 1/2 (101.8 kg m 2 ) (1.40 rad/sec) 2 

= 99.7 kgm 2 = 99.7 Joules 

s 2 

PROPELLING ENERGY E p = P p C t θ d 

Torque Factor (C t ) for Model 3700 (2.02 Nm/bar) 

Deceleration Arc (θ d ) for Model 3700 (.33 radians) 

E p = P p C t θ d = (103.4 bar) (2.02 Nm/bar) (0.33 radians) 

= 68.9 Joules 

GRAVITATIONAL ENERGY E g = 0 for horizontal rotation 

TOTAL ENERGY E t = E k + E p ± E g 

E t = 99.7 + 68.9 + 0 Nm = 168.6 Joules 

Total energy to be absorbed in the example is 

168.6 Joules. The cushion capacity of Model 3700 when 

properly adjusted is 188.7 Joules. This is adequate to 

meet the deceleration requirement. 

Ø enter =Ø end - θ d 

= 90 o - 19.6 o = 70.4 o 

Ø=1/2 (70.4 o + 90 o ) = 80.2 o Ø end = 90 o @ 3 o’clock 

sin Ø = .99 

E g = Wr a θ d sinØ = (770 Nm)(.34 rad)(.99) = 259 Joules 

Ø enter = 70.4 o θ d =19.6 o 

TOTAL ENERGY E t = E k + E p ± E g 

E t = 16.9 + 384 + 259 Nm = 659.9 Joules 

Total energy to be absorbed in the example is 659.9 Joules. 

The cushion capacity of Model 15000 is 711 Joules. This is 

adequate to meet the deceleration requirement. 

When the energy developed exceeds the capacity of the 

cushion, consider the following: 

l REDUCE WEIGHT OF OBJECT IN MOTION 

l REDUCE ROTATIONAL VELOCITY 

l EMPLOY EXTERNAL SHOCK ABSORBERS 

l ADD PROPORTIONAL HYDRAULICS TO THE CIRCUIT TO 

REDUCE PROPELLING ENERGY DURING DECELERATION. 


achieving optimum cushion performance. If the 

needle valve setting is too far open, cushion 

capacity will be reduced or rendered ineffective; 

if set too tight, cushion action will generate 

shock and pressure spikes in excess of actuator rating. 


57

L I N E A R D R I V E 


LINEAR DRIVE WITH MOOG 

FLO-TORK ROTARY ACTUATORS 

USING HARMONIC MOTION 

The advantages of using rotary actuators, combined 

with harmonic-motion-producing linkages, compared 

to the straight line cylinders, are derived from the 

principle of converting a constant speed rotating 

motion to a sinusoidal (sine-wave) motion which 

produces maximum linear force where needed for 

acceleration . . . and just the opposite force for 

deceleration and stopping the load. Meanwhile, you 

develop maximum linear speed during the middle of 

the 180º rotation cycle. 

Acceleration control is easy to achieve and usually 

is limited only by the available hydraulic or 

pneumatic power. 

Deceleration is usually the big problem and the speed 

of any reciprocating or oscillating motion is normally 

limited by the ability to control deceleration. 

Deceleration valves are expensive, difficult to field-adjust 

and susceptible to tampering and to malfunction from 

contaminated oil or air. 

A simple flow control valve to maintain constant 

speed of the rotary actuator can, when combined with 

harmonic linkage, decelerate the load smoothly to rest. 

HIGH SPEED -SMOOTH SPEED CON T ROL 

Controlled acceleration and deceleration . . . with the 

MOOG FLO-TORK rotary actuator rotating at a constant 

speed. You can go faster and smoother using rotary 

actuators than with any other method. 

GEN TLE ACCELERATION 

You have the maximum mechanical advantage where you 

need it . . . at the beginning of the travel. Force arrow 

shows maximum force in the direction of start-up to get 

you started faster. 

SPEED 

Maximum velocity is when the load is halfway to its 

destination. Smooth acceleration to that point . . . then 

smooth deceleration. 

GEN TLE DECELERATION 

You have the maximum mechanical advantage where 

you need it . . . at the end of the travel. Deceleration is 

a “mirror” reflection of acceleration and the load will be 

slowed down by the rotary actuator automatically. 

58 



F T H Y D R A O L I C 

Dim ‘D’ 

BEARING LOAD CAPACITIES 

BEARING LOAD CAPACITIES - MOOG FLO-TORK 

hydraulic rotary actuator bearings are sized to accept 

external loads. This feature often allows the shaft 

to be mounted directly to the rotary actuator without 

flexible couplings and outboard bearings, utilizing 

the MOOG FLO-TORK actuator as the bearing. 

M AXIMUM EXTERNA L RADIA L LOAD L 

MODEL 

(mm) 

900/1800 20.62 

3700/7500 28.58 

15000/30000 55.75 

75000/150000 71.42 

300000/600000 114.3 

MODEL 900 1800 3700 7500 15000 30000 75000 150000 300000 600000 

BA R N N N N N N N N N N 

0 6004 6004 8260 8260 17619 17619 99454 994126 182613 182613 

69 5288 6004 6583 8260 12861 17619 88525 99454 138910 182613 

138 4571 6004 4905 8260 8103 17619 77607 99454 95196 182613 

207 3846 6004 3227 8260 3345 17619 66688 99454 51493 182613 

M AXIMUM EXTERNA L THRUST LOAD T 

0 11546 11546 18423 18423 33845 33845 163866 163866 176266 176266 

69 10771 11546 16324 18423 28724 33845 148602 163866 139449 176266 

138 9996 11546 14234 18423 23603 33845 132916 163866 102779 176266 

207 9221 11546 12135 18423 18492 33845 117230 163866 66119 176266 


*CAUTION: L is the maximum allowable external radial load at 

the maximum distance D (distance from housing 

to middle of keyway as shown on the chart as 

dimension D). To find L match the model and 

maximum operating pressure to find the maximum 

external radial load L on the rotary actuator. T is 

the maximum allowable external thrust load. To 

find T, match the model and maximum operating 

pressure to find the maximum thrust load on the 

rotary actuator. For combined radial and thrust 

loads consult factory. 

SPECIAL CONSIDERATIONS 

1. SPECIAL SYSTEM DESIGN consideration must be given to 

applications that involve high speed rotation, high cycle life, 

eccentric external loading conditions, or when the actuator 

maximum allowable pressure is exceeded. These design 

considerations may include internal or external shock 

absorbers, external controlled stops, special material or 

hardness treatment for actuator internal parts and special 

hydraulic system controls. 

2. CUSHIONS are available on MOOG FLO-TORK air and 

hydraulic rotary actuators. MOOG FLO-TORK’s adjustable 

cushions will help absorb deceleration forces smoothly 

through the last 15º of rotation. 

3. POSITION HOLDING OR BRAKING is possible by using 

“holding” valves or pilot operated checks. The 

MOOG FLO-TORK rotary actuator provides positive holding 

when used with good quality holding or locking valves. 

4. SPEED CON T ROL can be accomplished by controlling 

the fluid being exhausted from the rotary actuator 

(meter-out). Meter-out speed control is preferred to 

meter-in control, as it prevents runaway or cavitation. 

Consult factory for rotational speeds exceeding 90º 

in one (1) second. 

5. CROSS-OVER RELIEF VALVES may be required to limit shock 

pressures and protect components in the system. 

6. SYSTEM CLEANLINESS-The life and reliability of rotary 

actuators as well as other fluid power components are largely 

dependent upon system cleanliness. The best service life can 

be obtained by: 

A) Complete flushing of each segment of the hydraulic circuit 

before connecting to the rotary actuator. 

B) Providing suction line filters of 100 mesh screen or finer 

and pressure line filters of 25 micron nominal or finer. 

7. SLOW ROTATION - The enclosed gear cases of MOOG 

FLO-TORK hydraulic rotary actuators are filled sufficiently 

with gear oil to lubricate the moving parts by immersion and 

splashing. In applications with slow rotation caution must be 

taken to insure that lubricant reaches upper gear components. 

8. HOLLOW SHAFT - A high strength steel shaft with full length 

key engagement is recommended to mate with MOOG 

FLO-TORK’s high strength hollow shaft pinion. 

SPECIAL DESIGNS 

The following are examples of MOOG FLO-TORK designs to 

satisfy special customer applications: 

A) THREE POSITION ACTUATORS 

B) AIR-OIL ACTUATORS FOR AIR OPERATIONS WITH OIL SPEED CONTROL 

C) NON TIE-ROD DESIGN 

D) SPRING RETURN 

E) MANIFOLD PIPING 

F) BUILT-IN CONTROL VALVES 

For special designs please forward a completed 

Application Specification Guide to MOOG FLO-TORK, Inc. 

NOTE: The foregoing engineering information was developed 

from the oretical considerations to illustrate how to select a 

MOOG FLO-TORK rotary actuator for a specific application. 

MOOG FLO-TORK does not intend, nor do we imply, that 

these same performance characteristics will prevail in 

your applications, and the information is to be used as 

a guide only. 


59

O O H Y D R A U L I C 


NOTES: 

1. D=Distance from bearing cap to center of keyway. 

2. Overhung or thrust load capacities for single and 

double cylinder models can be found under Max ‘L’ 

or Max ‘T’ respectively. 

3. If a combination thrust and overhung load condition 

exists consult factory. 

4. Bearing loads based on 10 rpm and 3000 hours B10 life. 

M AXIMUM EXTERNA L RADIA L LOAD L 

MODEL 

Dim ‘D’ 

(mm) 

6/12 20.07 

19/36 24.89 

67/133 49.78 

251/501 46.99 

1002/2002 113.28 

MODEL 6 12 19 37 67 133 251 501 1002 2002 

BA R N N N N N N N N N N 

0 9496 9496 21288 21288 30352 30352 31157 31157 101583 101583 

34.5 9055 9496 20101 21288 27880 30352 25751 31157 86416 101583 

69 8613 9496 18914 21288 25398 30352 20356 31157 71260 101583 

103.5 8182 9496 17736 21288 22808 30352 14950 31157 56094 101583 

138 7750 9496 16549 21288 20454 30352 9545 31157 40937 101583 

M AXIMUM EXTERNA L THRUST LOAD T 

0 14637 14637 11752 11752 32952 32952 35522 35522 130728 130728 

34.5 13901 14637 10663 11752 29558 32952 27978 35522 108469 130728 

69 13185 14637 9575 11752 26163 32952 20434 35522 86220 130728 

103.5 12459 14637 8397 11752 22769 32952 12890 35522 63971 130728 

138 11743 14637 7397 11752 19385 32952 5346 35522 41712 130728 

SPECIAL CONSIDERATIONS 

1. SPECIAL SYSTEM DESIGN consideration must be given to 

applications that involve high speed rotation, high cycle life, 

eccentric external loading conditions, or when the actuator 

maximum allowable pressure is exceeded. These design 

considerations may include internal or external shock 

absorbers, external controlled stops, special material or 

hardness treatment for actuator internal parts and special 

hydraulic system controls. 

2. CUSHIONS are available on MOOG FLO-TORK air and 

hydraulic rotary actuators. MOOG FLO-TORK’s adjustable 

cushions will help absorb deceleration forces smoothly 

through the last 15º of rotation. 

3. POSITION HOLDING OR BRAKING is possible by using 

“holding” valves or pilot operated checks. The 

MOOG FLO-TORK rotary actuator provides positive 

holding when used with good quality holding or 

locking valves. 

4. SPEED CON T ROL can be accomplished by controlling 

the fluid being exhausted from the rotary actuator 

(meter-out). Meter-out speed control is preferred to 

meter-in control, as it prevents runaway or cavitation. 

Consult factory for rotational speeds exceeding 90º 

in one (1) second. 

5. CROSS-OVER RELIEF VALVES may be required to limit 

shock pressures and protect components in the system. 

6. SYSTEM CLEANLINESS-The life and reliability of rotary 

actuators as well as other fluid power components are 

largely dependent upon system cleanliness. The best 

service life can be obtained by: 

A) Complete flushing of each segment of the hydraulic 

circuit before connecting to the rotary actuator. 

B) Providing suction line filters of 100 mesh screen or finer 

and pressure line filters of 25 micron nominal or finer. 

7. SLOW ROTATION - The enclosed gear cases of MOOG 

FLO-TORK hydraulic rotary actuators are filled sufficiently 

with gear oil to lubricate the moving parts by immersion 

and splashing. In applications with slow rotation caution 

must be taken to insure that lubricant reaches upper 

gear components. 

8. HOLLOW SHAFT - A high strength steel shaft with full 

length key engagement is recommended to mate with 

FLO-TORK’s high strength hollow shaft pinion. 

SPECIAL DESIGNS 

The following are examples of MOOG FLO-TORK designs 

to satisfy special customer applications: 

A) THREE POSITION ACTUATORS 

B) AIR-OIL ACTUATORS FOR AIR OPERATIONS WITH OIL SPEED CONTROL 

C) NON TIE-ROD DESIGN 

D) SPRING RETURN 

E) MANIFOLD PIPING 

F) BUILT-IN CONTROL VALVES 

For special designs please forward a completed 

Application Specification Guide to MOOG FLO-TORK, Inc. 

NOTE: The foregoing engineering information was developed 

from the oretical considerations to illustrate how to select a 

MOOG FLO-TORK rotary actuator for a specific application. 

MOOG FLO-TORK does not intend, nor do we imply, that 

these same performance characteristics will prevail in 

your applications, and the information is to be used as 

a guide only. 

60 


A P P L I C A T I O N

A P P L I C A T I O N S P E C I F I C A T I O N G U I D E 

C O M P A N Y 

NAME: 

ADDRESS: 

CUST. REF. 

CITY: ZIP: DIST RIBUTOR 

PHONE NUMBER: FAX NUMBER: LOCATION 

A P P L I C A T I O N D E S C R I P T I O N HYDRAULIC ( ) PNEUMATIC ( ) 

INCLUDING A DESCRIPTION OF THE CYCLE REQUIREMEN TS 

C A P A C I T Y ( N M ) 

OPERATING TORQUE: NM OPERATING PRESSURE: BAR 

HOLDING TORQUE: NM HOLDING PRESSURE (MAX.): BAR 

A P P L I C A T I O N 

ACCELERATING TORQUE: NM DECELERATING TORQUE: NM 

MAXIMUM ROTATION: 

DEG 

F L U I D 

TYPE: OPERATING TEMPERATURE RANGE: ºC 

D U T Y 

MAXIMUM ROTATION SPEED: 

DEGREES PER SECOND: 

CYCLE TIME (OVER AND BACK): SECONDS CYCLE RATE: PER HOUR 

CYCLE DESCRIPTION IF SPECIAL: 

CYCLE LIFE REQUIRED: ENVIRONMEN T: 

ROTATION LIMITED BY EXTERNAL STOPS: YES ( ) NO ( ) CUSHIONS (15º ST D.) YES ( ) NO ( ) 

P H Y S I C A L 

MAXIMUM HEIGHT: M MAXIMUM WIDTH: M 

MAXIMUM LENGTH: M MAXIMUM WEIGHT: N 

MOUN TING (TAPPED FACE (ST D.), LUG, FLANGE, OTHER): 

SHAFT (HOLLOW (ST D.), SINGLE END, DOUBLE END, OTHER): 

SHAFT END (SINGLE KEY (ST D.), SPLINE, OTHER): 

PORTS (NPT (ST D.), SAE ST RAIGHT THREAD, FLANGE, OTHER): 

L O A D S 

MAXIMUM SHAFT OVERHUNG LOAD (M): 

DISTANCE FROM ACTUATOR FACE OVERHUNG LOAD IS APPLIED (N): 

SHAFT THRUST LOAD (N): 

ADDITIONAL LOADING: DESCRIBE: 

R E S P O N S E I N F O R M A T I O N 

DATE QUOTATION REQUIRED: 

DATE PROTOTYPE REQUESTED: 

INITIAL SHIPMEN T REQUIRED: 

SUBMIT TED BY: 

E-MAIL: 

PROPOSAL DRAWING REQUIRED: 

INITIAL QUAN TITY REQUIRED: 

AN NUAL QUAN TITY PURCHASE: 

DATE: 

N O T E S M O O G F L O - T O R K 

61

W A R R A N T Y 

W A R R A N T Y 

THE SELLER WARRANTS ITS PRODUCTS TO BE FREE FROM DEFECTS IN MATERIAL AND WORKMANSHIP FOR A PERIOD OF ONE YEAR 

FROM THE DATE OF SHIPMENT FROM THE FACTORY. THE SELLER SHALL NOT BE RESPONSIBLE FOR ANY DAMAGE RESULTING TO OR 

CAUSED BY ITS PRODUCTS BY REASON OF IMPROPER STORAGE OR INSTALLATION, UNAUTHORIZED SERVICE, ALTERATION OF PRODUCTS, 

NEGLECT OR ABUSE, OR ATTEMPT TO OPERATE, INTENTIONALLY OR OTHERWISE, PRODUCTS AT OTHER THAN DESIGN SPECIFICATION 

OR RATED CAPACITY. THIS WARRANTY DOES NOT EXTEND TO ANY COMPONENT PARTS NOT MANUFACTURED BY SELLER, HOWEVER 

SELLER’S WARRANTY HEREIN SHALL NOT LIMIT ANY WARRANTIES MADE BY MANUFACTURERS OF COMPONENT PARTS WHICH MAY 

EXTEND TO PURCHASER. 

THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES AND NO REPRESENTATIONS, 

GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, (INCLUDING, BUT NOT LIMITED TO, A WARRANTY 

OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE,) ARE MADE BY SELLER IN CONNECTION 

WITH THE MANUFACTURE OR SALE OF ITS PRODUCTS. NO EMPLOYEE, DISTRIBUTOR, OR REPRESENTATIVE 

IS AUTHORIZED TO CHANGE THIS WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY ON 

BEHALF OF SELLER. 

CLAIMS FOR DEFECTS IN MATERIAL AND WORKMANSHIP SHALL BE MADE IN WRITING TO SELLER WITHIN TEN DAYS OF THE 

DISCOVERY OF DEFECT. SELLER MAY EITHER SEND A SERVICE REPRESENTATIVE OR HAVE THE PRODUCT RETURNED TO ITS FACTORY 

AT PURCHASER’S EXPENSE FOR INSPECTION. IF JUDGED BY SELLER TO BE DEFECTIVE IN MATERIAL OR WORKMANSHIP, THE PRODUCT 

WILL BE REPLACED OR REPAIRED AT THE OPTION OF SELLER, FREE FROM ALL CHARGES EXCEPT TRANSPORTATION. 

THE REMEDIES OF PURCHASER SET FORTH HEREIN ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER 

REMEDIES. THE LIABILITY OF SELLER WHETHER IN CONTRACT, TORT, UNDER ANY WARRANTY, OR 

OTHERWISE SHALL NOT EXTEND BEYOND ITS OBLIGATION TO REPAIR OR REPLACE, AT ITS OPTION, ANY 

PRODUCT OR PART FOUND BY SELLER TO BE DEFECTIVE IN MATERIAL OR WORKMANSHIP. SELLER SHALL 

NOT BE LIABLE FOR COST OF INSTALLATION AND/OR REMOVAL OR BE RESPONSIBLE FOR DIRECT, 

INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OF ANY NATURE. 

MOOG FLO-TORK, INC. PRODUCTS ARE MANUFACTURED UNDER VARIOUS UNITED STATES AND FOREIGN PATENTS. MOOG FLO-TORK, INC. 

RESERVES THE RIGHT TO CHANGE SPECIFICATIONS, DESIGNS, OR PRICES, OR DISCONTINUE MODELS OR OPTIONS, AT ANY TIME, WITHOUT NOTICE OR 

INCURRING OBLIGATION. CONSULT FACTORY FOR CRITICAL APPLICATION DIMENSIONS. 

ADAC ® , MOOG FLO-TORK ® , OHIO OSCILLATOR ® ARE REGISTERED TRADEMARKS OF MOOG FLO-TORK, ® INC. 

62 


W A R R A N T Y

N O T E S 

N O T E S 

N O T E S M O O G F L O - T O R K 

63

Y O U R L O C A L M O O G F L O - T O R K R E P R E S E N T A T I V E 

A W O R L D O F P O S S I B I L I T I E S 

1701 NORTH MAIN STREET 

P.O. BOX 68 

ORRVILLE, OHIO 44667-0068 

TEL 330 682 0010 

FAX 330 683 6857 

WWW.MOOGFLO-TORK.COM 

ACT-125-2008

Moog serioes Flo-Tork rotary actuators

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