ENGINEERING JAMES - James Thomas Engineering

JAMES 

ENGINEERING

304. 

0 


30.5cm Superlite truss 

400.0 

304.0 

400.0 

40cm Superlite truss 

ENGINEERING 

Part Code Description Weight 


B1650 5 metre section 17 



B1625 2.5 metre section 9.5 





B1602 2 way connection spigots 3.75 

B1609 2 way joint support plate c/w 3 vertical connecting spigots 2.55 

B1603 3 way connection with support plate & spigots 4 

B1604 4 way connection with support plate & spigots 3.5 

B1601 Base plate c/w 3 vertical connecting spigots 2.65 


SUPERLITETRUSS This lightweight truss is ideal for exhibition, 

conference and small venue work. Using the 

Supertruss principle has enabled the 

manufacture of a competitively strong but 

lightweight truss with all the innovative space 

and time saving characteristics first 

demonstrated in Supertruss. Superlite is a 

30.5cm x 60 degree equilateral triangular truss 

manufactured from 6082T6 aluminium tube 

with 50mm x 2mm wall main tubes, 19mm x 

2mm wall diagonals and featuring double 

ended connecting forks for ease of assembly 

and added strength. 

See load tables on page 10 


B2140 4 metre section 16.9 







B2102 2 way connection spigots 4.75 

B2109 2 way joint support plate c/w 3 vertical connecting spigots 3.65 




1


30.5cm Squarelite truss 









B3902 2 way/90 degree gate 6 

B3903 3 way/120 degree gate 4.6 

B3908 Square support plate per pair 3.15 


40cm Squarelite truss 








B4305A 0.5 metre section 5.1 

B4302A 2 way/90 degree gate 7 

B4303A 3 way/120 degree gate 5.3 

B4308A Square support plate per pair 5.78 

B4301A Base plate c/w 4 vertical connecting spigots 4.3 

SQUARELITETRUSS 2 

This lightweight truss is ideal for 

exhibition, conference and small 

venue work. Using the Supertruss 

design principles has enabled the 

manufacture of a competitively 

strong but lightweight truss with all 

the innovative space and time 

saving characteristics first 

demonstrated in Supertruss. 

Squarelite is available as a 30.5cm 

or 40cm square truss manufactured 

from 6082T6 grade aluminium tube 

with 50mm x 2mm wall main 

tubes,19mm x 2mm wall diagonals 

on all faces and featuring double 

ended connecting forks for ease of 

assembly and added strength. All 

trusses are supplied with pin and 'R' 

clips or bolt sets as necessary. All 

structural calculations have been 

written in accordance with BS 

CP8118 and verified by on site 

testing. Welding of truss is 

performed with British Standard 

approved welders. 


304.0 

400.0 

304.0 


end view 

400.0 


end view 



GPTRUSS 

General Purpose truss is manufactured from 

5.08cm dia x 3.2mm wall and 2.54cm dia x 

3.2mm wall 6082 T6 Aluminium tubing. 

Supplied with Thomas truss bolts and nuts. 

Ideal truss for conference, exhibition and 

small venue work. By incorporating suitable 

sleeve blocks, this truss can be used with our 

Ground Support Systems. 



30.5cm GP truss 





B4703 1.5 metre section 16 



B4705 2 way corner block 6.3 

B4710 3 way corner block 8 




B4106 30.5cm tower sleeve block 6.5 

B4708 Flat pivot section 

B4712 Lifting point 5.5 

B4106 4 way sleeve block 

- for 30.5 GP truss 




3 

520.7 

520.7 


52cm GP truss 

52cm GP truss 

52cm GP truss end view 30.5cm GP truss end view 








B4420 4 metre with castors 60 


B4422 2.5 metre with castors 43 


B4424 1.5 metre with castors 35 





B4407A 5 way corner block 18 


B4104 30.5cm tower sleeve block 

B4109 30.5cm tower sleeve block 

- 3 way with built in lifting point 

B4411 Flat pivot section 

B4409 0-270 degree pivot section 19.5 

B4410 0-90 degree pivot section 19 

B1312 Lifting point 7 

B4104 4 way sleeve block for 52cm GP truss 

304.80 

304.80

A revolutionary truss designed to offer all the advantages 

of the Thomas 52cm Supertruss but in 30.5cm square 

format. 30.5cm Supertruss provides a substantial increase 

in loadbearing capacity over the General Purpose 30.5cm 

truss and can span to a maximum of 15 metres between 

supports. This truss is ideal for exhibition, conference and 

general rigging jobs. 




304.80 

304.80 

30.5cm Supertruss 

end view 

4 


SUPERTRUSS 












B1201 2 way gate 3.5 

B1204A 3 way/120 degree gate 2.75 

B1204B 3 way gate with lifting point 3.5 

B1200A 60 degree gate 6.25 

B1203 135 degree gate 2 

B1211 Supertruss to GP adapter gate 3 

B1208 Square support plate 1.75 


B1206 0 -180 degree pivot section

520.70 

SUPERTRUSS 

520.70 

52cm Supertruss 

end view 

Part Code Description Weight Part Code Description Weight 


762.0 

520.7 


76cm x 52cm Supertruss 

end view 









B1305A 0.5 metre section 10.5 

B1360C 6 metre with castors 70 

B1350C 5 metre with castors 60.5 



B1325C 2.5 metre with castors 38 


B1315C 1.5 metre with castors 28.5 


B1301 2 way gate 5 

B1304 3 way/120 degree gate 4.3 

B1305 3 way gate with lifting point 9 



B1311 Supertruss to GP adapter gate 

B1309A 30.5cm tower sleeve plate 9 

B1309B 38cm tower sleeve plate 8.5 

B1308 Square support plate 5 


The Supertruss design features end connectors, which are horizontally 

orientated, so that the connecting pin is dropped in vertically and truss 

elements are unisex (they can be used either way) this also means that a 

variety of angles and shapes can be constructed with ease. Supertruss is 

considerably stronger size for size when compared to the General Purpose 

truss. Supertruss is available as 30.5cm, 52cm and 76cm x 52cm providing 

solutions for all rigging applications. 

See load tables on page 13-14 

5 

76 x 52cm Supertruss 










B2905A 0.5 metre Section 13 









B2901 2 way gate 7 

B2904 3 way/120 degree gate 6 

B2905 3 way gate with lifting point 10.5 



B2911 Supertruss to GP adapter gate 7 

B1309A 30.5cm tower Sleeve plate 9 

B1309B 38cm tower sleeve plate 8.5 

B1308 Square support plate 5 

B1312 Lifting point 7

SUPERMEGATRUSS Supermegatruss has been 

developed for those applications 

which require monumental 

loadbearing capability. The truss 

is manufactured from 6082T6 

specification tube using 7.62cm 

diameter main tubes, 4.84cm 

cross boom tubes and 4cm box 

section diagonals. The end 

connection is a scaled up version 

of the Supertruss fork ensuring 

the easy and strong connection 

qualities required. 

Manoeuvrability is ensured by the 

standard fitment of castor 

wheels. This truss has a 

maximum span capability of 39 

metres clear span without lateral 

restraint. If there is lateral 

restraint available mid span, then 

the maximum span can be up to 

48 metres. This truss is an 

excellent basis for a 'mothergrid' 

or a large roof system. 



B2860 Supermegatruss 6 metre c/w castors 148 



B2835 Supermegatruss 3.5 metre c/w castors 86 






B2802 Supermegatruss 2 way gate 15.2 

B2803 Supermegatruss 3 way gate 13 

B2803A Supermegatruss 3 way gate with lifting point 20 

B2808 Supermegatruss square support plate 4.6 

B2809 Supermegatruss to 38cm tower sleeve plate 8.5 

B2812 Supermegatruss lifting point 9 

6 

1076.2 

576.2 



GROUNDSUPPORT 

The Ground Support Tower is 

manufactured with the purpose of 

providing a lifting medium for the variety 

of Thomas trusses ranging from the 

smallest general purpose truss - through 

to the largest Supertruss. The Tower 

system is available as 30.5cm and 38cm. 

The Towers provide a method of support 

for truss grids in venues where flying by 

other methods is impractical. Each Tower 

is capable of lifting to maximum heights 

of 12m (30.5cm tower) and 15m (38cm 

tower) and capable of lifting 2 and 4 

tonnes respectively (which must include 

the self weight of the grid). The truss rig 

is raised and lowered by means of chain 

hoists, such as CM lodestar, which work 

with a roller beam and double chain fall 

to become an integral part of the system. 

Towers can be used outside when used 

with suitable restraints 

304.80 

304.80 

30.5cm Tower system 

end view 

Part Code Description Weight Part Code Description Weight 

30cm Tower system 

B3500 Base 24 

B3500A Base for 52cm & 76 x 52cm supertruss 24 

B3501 2 metre hinge section 30 

B3502 Roller beam (for 1 tonne motors) 18 

B3504 Double roller beam (for 2 tonne motors) 

B3540 4 metre Tower section 42 


B3525 2.5 metre Tower section 27 





B4003 Outrigger Arm & swivel coupler 9 

7 


381.0 


B3800 Base 24 

B3800A Base for 52cm & 76 x 52cm supertruss 24 

B3801C 2 metre hinge section 32 

B3802 Roller beam (for 1 tonne motors) 22 

B3803 Rocker beam (for 2 - 1 tonne motors) 22 

B3804 Double roller beam (for 2 tonne motors) 25 








B4003 Outrigger arm & swivel coupler 9 



381.0 


end view

GROUNDSUPPORT 

The Ground Support Supertower is 

manufactured with the purpose of 

providing a lifting medium for the variety 

of Thomas trusses ranging from the 

smallest general purpose truss - through 

to the largest Supertruss. The 

Supertower system is available as 

30.5cm and 38cm and is based around 

the Supertruss system using modified 

forks to allow smooth operation while 

raising and lowering the grid. 

The Towers provide a method of support 

for truss grids in venues where flying by 

other methods is impractical. Each Tower 

is capable of lifting to maximum heights 

of 12m (30.5cm Tower) and 15m (38cm 

Tower) and capable of lifting 2 and 4 

tonnes respectively (which must include 

the self weight of the grid). The truss rig 

is raised and lowered by means of chain 

hoists, such as CM lodestar, which work 

with a roller beam and double chain fall 

to become an integral part of the 

system. Towers can be used outside 

when used with suitable restraints. 


30.5cm Supertower 

B5300A 30.5cm Supertower base with vertical connecting forks 32 

B5302 30.5cm Supertower roller beam with vertical connecting forks 28 

B5340 30.5cm Supertower 4 metre section 44 


B5325 30.5cm Supertower 2.5 metre section 30 





38cm Supertower 

B8300A 38cm Supertower base with vertical connecting forks 32 

B8302 38cm Supertower roller beam with vertical connecting forks 28 

B8302A 38cm Supertower double roller beam with vert con forks 

B8301C 38cm Supertower 2 metre hinge section 35 

B8330 38cm Supertower 3 metre section 42 



Tower lifting system 

B4250A Tower lifting system without winch 74 

8 

30.5cm Supertower system 

304.80 

381.0 

304.80 


end view 


end view 


381.0 




FOLLOWSPOTCHAIRS James Thomas Engineering manufacture a range of lightweight follow spot chairs with 

comfortable rally type seats and safety belts. The chairs come in 5 standard formats as 

detailed below and are all supplied with one straight and one 45 degree angle 

adjustable spigot mounting adapters, which allow the use of most types of follow spots 

available today. The follow spot chairs fit to the truss by means of 4 swivel couplers 

which are supplied as optional extras. Some models also feature a tray behind the seat 

for mounting of a ballast. 

Part Code Description Weight Size 

B1102 Top mounted follow spot chair with ballast tray 24 1450 x 698 x 1221 

B1103 Universal follow spot chair with ballast tray 33 1450 x 762 x 1605 

G0300 Swivel coupler (4 required per chair) 1 

T0304 Straight followspot spigot 

T0305 Angled followspot spigot 

9 

Universal followspot chair with ballast tray

Load tables 


Span Uniformly Distributed Load Centre Point Load Self Weight 

metres feet kg lb deflection kg lb kg lb 

12 39.4 135 298 74.5mm 68 150 48 106 

10 32.8 252 556 62mm 126 278 40 88 

8 26.2 456 1,005 50mm 228 503 32 70 

6 19.7 743 1,638 32mm 372 820 24 53 

4 13.1 1,151 2,537 14mm 576 1,270 16 35 

2 6.5 1,993 4,394 3mm 997 2,198 8 17 




16 52.5 242 533 100mm 121 267 76 167 

14 45.9 325 716 79mm 163 359 66.5 147 

12 39.4 410 904 57.5mm 205 452 57 126 

10 32.8 524 1,155 40mm 262 578 47.5 105 

8 26.2 687 1,515 25.5mm 344 758 38 84 

6 19.7 950 2,094 14mm 475 1,047 28.5 63 

4 13.1 1,181 2,604 5mm 591 1,303 19 42 

2 6.5 1,196 2,637 0.5mm 598 1,318 9.5 21 

10 



Load tables 




11 



13.5 44.3 257 567 84.5mm 128.5 283 68 150 

12 39.4 366 807 75mm 183 403 60 132 

10.5 34.5 519 1,703 65.5mm 260 573 52.5 116 

9 29.5 749 2,457 56mm 375 827 45 99 

7.5 24.6 1,122 2,473 47mm 561 1,237 37.5 83 

6 19.7 1,558 3,435 32.5mm 779 1,717 30 66 




16.5 54.1 332 732 103mm 166 366 100 220 

15 49.2 441 972 94mm 221 487 90 198 

13.5 44.3 585 1,290 84.5mm 293 646 81 179 

12 39.4 781 1,722 75mm 391 862 72 159 

10.5 34.5 1,062 2,341 65.5mm 531 1,171 63 139 

9 29.5 1,333 2,939 50.5mm 667 1,470 54 119 

7.5 24.6 1,344 2,963 29.5mm 672 1,481 45 99 

6 19.7 1,354 2,985 15mm 677 1,492 36 79

Load tables 




12 



12 39.4 405 893 75mm 203 447 106 234 

10.5 34.4 560 1,235 65mm 280 617 93 205 

9 29.5 689 1,519 50mm 345 761 79.5 175 

7.5 24.6 863 1,903 36.5mm 432 952 66 145 

6 19.7 1,115 2,458 25.5mm 558 1,230 53 117 

4.5 14.8 1,524 3,360 16mm 762 1,680 40 88 

3 9.8 2,327 5,130 9mm 1,164 2,566 26.5 58 

52cm GP truss 



15 49.2 836 184 85mm 418 921 180 397 

13.5 44.3 963 212 71mm 482 1,063 170 375 

12 39.4 1,117 2,462 58mm 559 1,232 160 353 

10.5 34.4 1,312 2,892 46.5mm 656 1,446 140 309 

9 29.5 1,565 3,450 36mm 783 1,726 120 265 

7.5 24.6 1,914 4,220 27mm 957 2,110 100 220 

6 19.7 2,429 5,355 19.5mm 1,215 2,679 80 176 


52cm GP truss

Load tables 




15 49.21 412 908 94mm 206 454 150 331 

13.5 42.29 561 1,237 84mm 281 619 135 298 

12 39.37 770 1,697 75mm 385 849 120 265 

10.5 34.45 1,060 2,337 66mm 530 1,168 105 231 

9 25.53 1,505 3,318 56mm 753 1,660 90 198 

7.5 24.61 2,223 4,901 47mm 1,111 2,449 75 165 

6 19.69 3,128 6,896 33mm 1,564 3,448 60 132 

4.5 14.76 4,221 9,306 19mm 2,111 4,654 45 99 

3 9.84 4,239 149,698 6mm 2,120 4,674 30 66 




24 78.74 452 996 150mm 226 498 284 626 

22.5 73.82 579 1,276 141mm 290 639 266 386 

21 68.9 729 1,607 131mm 365 805 248.5 548 

19.5 63.98 910 2,006 122mm 455 1,003 231 509 

18 59.1 1,133 2,498 112mm 567 1,250 213 470 

16.5 54.13 1,414 3,117 103mm 707 1,559 195 430 

15 49.21 1,777 3,917 94mm 889 1,960 177.5 391 

13.5 42.29 2,261 4,985 84mm 1,131 2,493 160 353 

12 39.37 2,787 6,144 72mm 1,394 3,073 142 313 

10.5 34.45 3,292 7,257 56mm 1,646 3,629 124 273 

9 25.53 3,323 7,326 35mm 1,662 3,664 106.5 235 

7.5 24.61 3,341 7,365 20mm 1,671 3,684 89 196 

6 19.69 3,359 7,405 10mm 1,680 3,704 71 156 

30.5cm Supertruss 52cm Supertruss 

13 



Load tables 

76 x 52cm Supertruss 



30 98.4 701 1,545 182mm 351 774 380 838 

28.5 93.5 841 1,854 174mm 421 928 361 796 

27 88.6 1,010 2,227 166mm 505 1,113 342 754 

25.5 83.7 1,197 2,639 156mm 599 1,320 323 712 

24 78.7 1,524 3,360 156mm 762 1,680 304 670 

22.5 73.8 1,685 3,715 139mm 843 1,858 285 628 

21 68.9 1,906 4,202 124mm 953 2,101 266 586 

19.5 63.9 2,133 4,702 109mm 1,067 2,352 247 544 

18 59.1 2,403 5,298 95mm 1,202 2,650 228 503 

16.5 54.1 2,714 5,983 81mm 1,357 2,992 209 461 

15 49.2 3,091 6,814 68mm 1,546 3,408 190 419 

13.5 44.3 3,545 7,815 56mm 1,773 3,909 171 377 

12 39.4 4,117 9,076 45mm 2,059 4,539 152 335 

10.5 34.4 4,843 10,677 35mm 2,422 5,339 133 293 

9 29.5 5,340 11,772 24mm 2,670 5,886 114 251 

7.5 24.6 5,356 11,808 14mm 2,678 5,904 95 209 

Supermegatruss 



14 



39 128 1,036 2,284 161mm 518 1,142 1,118 2,464 

36 118 1,335 2,943 140mm 668 1,472 1,032 2,275 

33 108.25 1,679 3,701 120mm 840 1,851 946 2,085 

30 98.42 2,083 4,592 102mm 1,042 2,297 860 1,896 

27 88.58 2,566 5,657 84.5mm 1,283 2,828 774 1,706 

24 78.74 3,159 6,964 68.5mm 1,580 3,483 688 1,516 

21 68.9 3,911 8,622 54mm 1,956 4,312 602 1,327 

18 59.06 4,901 10,804 41mm 2,450 5,401 516 1,137 

15 49.21 6,275 13,833 29.5mm 3,138 6,918 430 948 


Supermegatruss



Navigation Complex • Navigation Road • Diglis Trading Estate • Worcester • WR5 3DE • United Kingdom 

T: +44 (0)1905 363600 • E: sales@jamesthomas.co.uk 

www.jamesthomas.co.uk

ENGINEERING JAMES - James Thomas Engineering

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?