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Heavy Industrial Shock Absorbers ECA 2 to ECA 4Self-CompensatingEnertrols durable ECA 2, ECA 3 and 4" Bore Series ofself-compensating shock absorbers have been designedto handle extremely heavy-duty applications and to providecontrolled linear deceleration under changing conditions.Energy per cycle ratings for these proven performers rangefrom 32,000 in-lbs (3,616 Nm) to 1,120,000 in-lbs (126,500Nm). These dependable models also offer wide effective weightranges for handling numerous applications. They are availableself-contained or for use with an external air/oil tank. A varietyof mounting options are available including: front and rearflanges, side-foot mount and clevis mount.Applications include: foundry, steel, marine, lumber and otherheavy equipment industries.Technical DataImpact velocity range: 1 to 16.5 ft/sec (0.30 to 5 m/sec)Operating temperature: 10° to 150° F (-12° to 66° C)Mechanical stop:2", 3" bore: Must be provided .09 inch (2.3 mm) before end of stroke.4" bore: Must be provided 0.09 inch (2.3 mm) before end of stroke.Oil type: ATFMaterials: Steel body with black oxide finish. Piston rod high tensilesteel, hardened and chrome plated. Return spring zinc plated.Heavy Industrial Shock Absorbers ECA 2 to ECA 4Self-CompensatingIllustration depicts ECA 2 and ECA 3 design only.Pressure Chamberwith Metering OrificesPiston RodButtonReturn SpringOuter BodyPistonAccumulatorMain Bearing6723435 Industrial Park Dr., Farmington Hills, MI 48335 • p: 734-595-4500f: 734-595-6410 • customerservice@enertrols.com • www.enertrols.com
EA 2 to EA3Heavy Industrial Shock AbsorbersAdjustableEnertrols rugged EA 2 and EA 3 Series heavy industrial adjustableshock absorbers are available to handle your most demanding lineardeceleration applications.Energy capacity ratings are high with wide effective weightranges, resulting in the capability of handling a wider range ofapplications and increases in velocity. The units are easily adjustedby means of a 5/16 inch (8 mm) hex socket adjuster located at thebottom of the outer body. These adjustable shock absorbers aremaintenance free and are available self-contained or for use with anexternal air/oil tank.Features include: an internal accumulator and threaded mountingbrackets, easily adaptable to the front or rear of the outer body.Applications include: foundry, steel, marine, lumber, and other heavyequipment industries.Technical DataImpact velocity range: 0.33 to 16.5 ft/sec (0.1 to 5 m/sec)Operating temperature: 10° to 150° F (-12° to 66° C)Mechanical stop: Must be provided .09 inch (2.3 mm)before end of stroke.Oil type: ATFMaterials: Steel body with black oxide finish. Piston rod hightensile steel, hardened and chrome plated. Return spring zincplated. To avoid reducing heat dissipation, do not paint.Adjustment: After installation of the shock absorber, cycle themachine a number of times. Turn the hex socket adjuster againstthe scale marked 0 to 9, until optimum deceleration is achieved(i.e. smooth deceleration throughout the stroke).Hard impact at the start of stroke-turn adjuster toward 9.Hard set-down at the end of stroke-turn adjuster toward 0.Heavy Industrial Shock Absorbers EA 2 and EA 3Pressure Chamberwith Metering OrificesPiston RodAdjustableIndustrial Shock AbsorbersAdjustmentOuter BodyPistonAccumulatorMain BearingReturn Spring23435 Industrial Park Dr., Farmington Hills, MI 48335 • p: 734-595-4500f: 734-595-6410 • customerservice@enertrols.com • www.enertrols.com68
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Any mechanism that moves and that m
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Construction & Design FeaturesMinia
Page 10 and 11:
Standard Shock AbsorbersGold Line
Page 12 and 13:
Accessories & Special Application S
Page 14 and 15:
Selecting the Correct Type of Shock
Page 16:
Selecting the Correct Size Shock Ab
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Example 9Horizontal-Moving Load-Rot
Page 21 and 22: Example 16Vertical-Rotating Beam Dr
Page 23 and 24: Example 22Vertical Rotating Arm - C
Page 25 and 26: Model Rating ChartsShock Absorber S
Page 27 and 28: Self-Compensating ECA ModelsModel N
Page 29 and 30: Construction and Parts Descriptions
Page 31 and 32: Installation Recommendations and Ti
Page 33 and 34: Additional Enertrols ProductsShock
Page 35 and 36: SM 9 to SM 75MFSub-Miniature Shock
Page 37 and 38: SNALD 150 to 600Miniature Shock Abs
Page 39 and 40: SNALD 1/2 Bore x 1, 2"Miniature Sho
Page 41 and 42: SA 30 to 150 & 1/4" BoreMiniature S
Page 43 and 44: SALD 3/8 Bore x 1"Miniature Shock A
Page 45 and 46: SALD 1/2 Bore x 1, 2"Miniature Shoc
Page 47 and 48: Industrial Shock AbsorbersWeartec P
Page 49 and 50: SNALD 33, 45 & 64 SeriesOrdering In
Page 51 and 52: SNALD 33 SeriesMid-Size Shock Absor
Page 57 and 58: AccessoriesSNALD Mid-Size 33, 45 &
Page 59 and 60: SALD ½ x 1, 2-P, SALD ¾ x 1, 2, 3
Page 61 and 62: Gold Line ® & Silverline ® Primar
Page 63 and 64: Retention Kit for MSC Installations
Page 65 and 66: SALD 3/4, 1-1/8,1-1/2, 2-1/4Gold Li
Page 67 and 68: Positive Stop Collar (-PSC) for Fix
Page 69 and 70: SILVERLINE ® SeriesDimensions in i
Page 71: High Precision Metric (HPM) Series
Page 75 and 76: ECA and EA 2", 3" Bore SeriesECA Se
Page 77 and 78: ECA and EA 2", 3" Bore SeriesECA Se
Page 79 and 80: ECA 4" Bore SeriesHeavy Duty Models
Page 81 and 82: Stacker Crane Shock Absorbers ESCS-
Page 83 and 84: Stacker Crane Shock Absorbers ESCS-
Page 85 and 86: Industrial Crane Bumper Shocks ECB-
Page 87 and 88: Industrial Crane Bumper Shocks ECB-
Page 89 and 90: Dimensions in inches and (mm)ABCD0.
Page 91 and 92: AR0.27(R7)BC0.32(8.1)0.55(14)M8 x 1
Page 93 and 94: Mounting Brackets for Hydraulic Dam
Page 95 and 96: EDVC Velocity & Feed ControllersC51
Page 97 and 98: EVC Velocity & Feed Controllers wit
Page 99: Stocking DistributorsUSA, Canada an
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