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About Selecting Shock Absorbers
To select the best shock absorber for your application, you need to find the energy capacity your application requires. Use this formula to calculate the energy capacity required to stop a horizontal-moving load. For example, if you have a 250-lb. load moving at 25 inches per second, your calculation is (250 lbs. ÷ 772) × 252 = 202.4 in.-lbs. energy capacity.
Note: Choose a shock absorber with a higher energy capacity than you calculated. Factors such as driving force or an inclined surface will increase the energy capacity required.
Energy Capacity (in.-lbs.) = (Weight, lbs./772) × Velocity2 (in. per second)
Self-Adjusting Shock Absorbers
Acetal, Steel, or Nylon Bumper
Aluminum Bumper
Urethane Rubber Bumper
No Bumper
Accommodate changing loads and energy without manual adjustment. Shock absorbers counteract the energy of moving objects to prevent damage to equipment and material. They're often used in gantry systems, presses, and at stops along conveyors. Mounting nuts are included. Mounting Blocks for Shock Absorbers are sold separately.
Nylon and urethane rubber bumpers are nonmarring.
Aluminum bumpers are nonmagnetic.
Body | Bumper | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Thread Size | Thread Pitch, mm | Body Material | Rod Dia. | Dia. | Material | Each | |
Threaded-Body Mount | |||||||||||||
Inch | |||||||||||||
| 20 | 167 | 0.26" | 2.27" | 2.01" | 0.38" | 3/8"-32 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.13" | 0.3" | Steel | 0000000 | 000000 |
| 75 | 56 | 0.4" | 2.76" | 2.36" | 0.5" | 1/2"-20 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.13" | 0.3" | Acetal | 0000000 | 00000 |
| 100 | 10 | 0.25" | 2.75" | 2.5" | 0.56" | 9/16"-18 | __ | Black-Oxide Steel | 0.15" | 0.25" | Aluminum | 0000000 | 000000 |
| 123 | 41 | 0.5" | 3.66" | 3.16" | 0.56" | 9/16"-18 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.19" | 0.47" | Nylon | 0000000 | 00000 |
| 200 | 10 | 0.5" | 3.75" | 3.25" | 0.75" | 3/4"-16 | __ | Black-Oxide Steel | 0.15" | 0.25" | Aluminum | 0000000 | 000000 |
| 225 | 22 | 0.63" | 4.5" | 3.87" | 0.56" | 9/16"-18 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.16" | 0.47" | Steel | 0000000 | 00000 |
| 250 | 26 | 1" | 4.75" | 3.75" | 1" | 1"-12 | __ | Black-Oxide Steel | 0.19" | 0.38" | Aluminum | 0000000 | 000000 |
| 288 | 23 | 0.5" | 4.07" | 3.57" | 0.75" | 3/4"-16 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.25" | 0.66" | Nylon | 0000000 | 00000 |
| 300 | 22 | 0.75" | 4.62" | 3.87" | 0.75" | 3/4"-16 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.19" | 0.66" | Steel | 0000000 | 00000 |
| 600 | 17 | 1" | 5.76" | 4.76" | 1" | 1"-12 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.31" | 0.9" | Nylon | 0000000 | 000000 |
| 620 | 11 | 0.59" | 4.15" | 3.56" | 0.75" | 3/4"-16 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.25" | 0.66" | Steel | 000000 | 000000 |
| 650 | 10 | 1" | 4.75" | 3.75" | 1" | 1"-12 | __ | Black-Oxide Steel | 0.19" | 0.38" | Aluminum | 0000000 | 000000 |
| 650 | 15 | 1" | 5.62" | 4.62" | 1" | 1"-12 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.25" | 0.9" | Steel | 0000000 | 000000 |
| 975 | 14 | 1.58" | 7.44" | 5.86" | 1" | 1"-12 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.25" | 0.9" | Steel | 000000 | 000000 |
| 1,042 | 12 | 1.6" | 8.31" | 6.71" | 1" | 1"-12 | __ | Black-Oxide Steel | 0.355" | 0.87" | Urethane Rubber | 0000000 | 000000 |
| 1,860 | 5 | 0.91" | 5.51" | 4.6" | 1" | 1"-12 | __ | Black Ultra-Corrosion Resistant-Coated Steel | 0.38" | 0.9" | Steel | 000000 | 000000 |
| 2,000 | 10 | 1" | 5.25" | 4.25" | 1.25" | 1 1/4"-12 | __ | Black-Oxide Steel | 0.28" | 0.5" | Aluminum | 0000000 | 000000 |
| 5,000 | 10 | 2" | 8.25" | 6.25" | 1.38" | 1 3/8"-12 | __ | Black-Oxide Steel | 0.34" | 0.63" | Aluminum | 0000000 | 000000 |
Metric | |||||||||||||
| 9 | 33 | 0.2" | 1.22" | 1.02" | 0.24" | M6 | 0.5 | Black-Oxide Steel | 0.08" | __ | __ | 0000000 | 00000 |
| 11 | 53 | 0.2" | 1.52" | 1.32" | 0.31" | M8 | 0.75 | Black-Oxide Steel | 0.08" | 0.19" | Acetal | 0000000 | 00000 |
| 11 | 53 | 0.2" | 1.52" | 1.32" | 0.31" | M8 | 1 | Black-Oxide Steel | 0.08" | 0.19" | Acetal | 0000000 | 00000 |
| 20 | 167 | 0.26" | 2.27" | 2.01" | 0.39" | M10 | 1 | Black Ultra-Corrosion Resistant-Coated Steel | 0.13" | 0.3" | Steel | 0000000 | 00000 |
| 75 | 56 | 0.4" | 2.76" | 2.36" | 0.48" | M12 | 1 | Black Ultra-Corrosion Resistant-Coated Steel | 0.13" | 0.3" | Steel | 0000000 | 00000 |
| 100 | 10 | 0.25" | 2.75" | 2.5" | 0.55" | M14 | 1.5 | Black-Oxide Steel | 0.15" | 0.25" | Aluminum | 0000000 | 000000 |
| 123 | 41 | 0.5" | 3.66" | 3.16" | 0.55" | M14 | 1 | Black Ultra-Corrosion Resistant-Coated Steel | 0.19" | 0.47" | Nylon | 0000000 | 00000 |
| 200 | 10 | 0.5" | 3.75" | 3.25" | 0.78" | M20 | 1.5 | Black-Oxide Steel | 0.15" | 0.25" | Aluminum | 0000000 | 000000 |
| 225 | 22 | 0.63" | 4.5" | 3.87" | 0.55" | M14 | 1.5 | Black Ultra-Corrosion Resistant-Coated Steel | 0.16" | 0.47" | Steel | 0000000 | 00000 |
| 250 | 26 | 1" | 4.75" | 3.75" | 0.98" | M25 | 1.5 | Black-Oxide Steel | 0.19" | 0.38" | Aluminum | 0000000 | 000000 |
| 288 | 23 | 0.5" | 4.07" | 3.57" | 0.78" | M20 | 1.5 | Black Ultra-Corrosion Resistant-Coated Steel | 0.25" | 0.66" | Nylon | 0000000 | 00000 |
| 300 | 22 | 0.75" | 4.62" | 3.87" | 0.78" | M20 | 1.5 | Black Ultra-Corrosion Resistant-Coated Steel | 0.19" | 0.66" | Steel | 0000000 | 00000 |
| 600 | 17 | 1" | 5.76" | 4.76" | 0.98" | M25 | 1.5 | Black Ultra-Corrosion Resistant-Coated Steel | 0.31" | 0.9" | Nylon | 0000000 | 000000 |
| 650 | 10 | 1" | 4.75" | 3.75" | 0.98" | M25 | 1.5 | Black-Oxide Steel | 0.19" | 0.38" | Aluminum | 0000000 | 000000 |
| 650 | 15 | 1" | 5.62" | 4.62" | 0.98" | M25 | 1.5 | Black Ultra-Corrosion Resistant-Coated Steel | 0.25" | 0.9" | Steel | 0000000 | 000000 |
| 2,000 | 10 | 1" | 5.25" | 4.25" | 1.3" | M33 | 1.5 | Black-Oxide Steel | 0.28" | 0.5" | Aluminum | 0000000 | 000000 |
| 3,472 | 8 | 2" | 9.57" | 7.57" | 1.42" | M36 | 1.5 | Black-Oxide Steel | 0.396" | 1.18" | Urethane Rubber | 0000000 | 000000 |
| 5,000 | 10 | 2" | 8.25" | 6.25" | 1.42" | M36 | 1.5 | Black-Oxide Steel | 0.34" | 0.63" | Aluminum | 0000000 | 000000 |
Corrosion-Resistant Self-Adjusting Shock Absorbers
Made from stainless steel for excellent corrosion resistance in damp environments. Install shock absorbers in gantry systems, presses, and at stops along conveyors—they counteract the energy of moving objects to prevent damage to equipment and material. Use Mounting Blocks for Shock Absorbers (not included) and Mounting Nuts for Shock Absorbers (not included) for mounting.
Body | Rod | Bumper | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Thread Size | Material | Dia. | Material | Dia. | Material | Each | |
Threaded-Body Mount | |||||||||||||
| 100 | 10 | 0.25" | 2.75" | 2.5" | 0.56" | 9/16"-18 | Stainless Steel | 0.15" | Stainless Steel | 0.25" | Stainless Steel | 000000 | 0000000 |
| 200 | 10 | 0.5" | 3.75" | 3.25" | 0.75" | 3/4"-16 | Stainless Steel | 0.15" | Stainless Steel | 0.25" | Stainless Steel | 000000 | 000000 |
| 250 | 27 | 1" | 4.75" | 3.75" | 1" | 1"-12 | Stainless Steel | 0.19" | Stainless Steel | 0.38" | Stainless Steel | 000000 | 000000 |
| 650 | 10 | 1" | 4.75" | 3.75" | 1" | 1"-12 | Stainless Steel | 0.19" | Stainless Steel | 0.38" | Stainless Steel | 000000 | 000000 |
| 2,000 | 10 | 1" | 5.25" | 4.25" | 1.25" | 1 1/4"-12 | Stainless Steel | 0.28" | Stainless Steel | 0.5" | Stainless Steel | 000000 | 000000 |
| 5,000 | 10 | 2" | 8.25" | 6.25" | 1.38" | 1 3/8"-12 | Stainless Steel | 0.34" | Stainless Steel | 0.63" | Stainless Steel | 000000 | 000000 |
Adjustable Shock Absorbers
Turn the knob on these shock absorbers to change deceleration to suit varying loads and speeds. They counteract the energy of moving objects to prevent damage to equipment and material. They're commonly used in gantry systems, presses, and conveyor stops. Threaded-body shock absorbers include mounting nut. Mounting Blocks for Shock Absorbers are sold separately.
Nylon and urethane rubber bumpers are nonmarring.
Inch Threaded-Body Mount
Four-Position Adjustment
Variable Adjustment
Body | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Thread Size | Body Material | Rod Diameter | Rod Finish | Bumper Dia. | Bumper Material | Temp. Range, ° F | Each | |
Four-Position Adjustment | ||||||||||||||
| 87 | 60 | 0.6" | 4.33" | 3.73" | 0.63" | 5/8"-18 | Black-Oxide Steel | 0.14" | Chrome-Plated Steel | 0.47" | Urethane Rubber | 14° to 176° | 0000000 | 0000000 |
| 260 | 30 | 0.8" | 5.08" | 4.28" | 0.88" | 7/8"-14 | Black-Oxide Steel | 0.2" | Chrome-Plated Steel | 0.71" | Urethane Rubber | 14° to 176° | 0000000 | 000000 |
| 712 | 15 | 1" | 6.02" | 5.02" | 1" | 1"-12 | Black-Oxide Steel | 0.35" | Chrome-Plated Steel | 0.87" | Urethane Rubber | 14° to 176° | 0000000 | 000000 |
Variable Adjustment | ||||||||||||||
| 35 | 25 | 0.4" | 3.31" | 2.91" | 0.5" | 1/2"-20 | Black Ultra-Corrosion Resistant-Coated Steel | 0.13" | Stainless Steel | 0.3" | Steel | 32° to 150° | 0000000 | 00000 |
| 200 | 25 | 0.5" | 3.67" | 3.17" | 0.56" | 9/16"-18 | Black Ultra-Corrosion Resistant-Coated Steel | 0.19" | Stainless Steel | 0.47" | Nylon | 32° to 150° | 0000000 | 00000 |
| 275 | 18 | 0.5" | 4.35" | 3.85" | 0.75" | 3/4"-16 | Black-Anodized Aluminum | 0.19" | Nickel-Plated Steel | 0.5" | Urethane Rubber | 32° to 150° | 0000000 | 000000 |
| 300 | 22 | 0.75" | 4.67" | 3.92" | 0.75" | 3/4"-16 | Black Ultra-Corrosion Resistant-Coated Steel | 0.19" | Stainless Steel | 0.66" | Steel | 32° to 150° | 0000000 | 00000 |
| 600 | 17 | 1" | 5.6" | 4.6" | 1" | 1"-12 | Black Ultra-Corrosion Resistant-Coated Steel | 0.25" | Stainless Steel | 0.9" | Steel | 32° to 150° | 0000000 | 000000 |
| 715 | 15 | 1" | 5.62" | 4.62" | 1" | 1"-12 | Black-Anodized Aluminum | 0.25" | Chrome-Plated Steel | 0.62" | Urethane Rubber | 32° to 150° | 0000000 | 000000 |
| 1,500 | 7 | 0.91" | 5.44" | 4.53" | 1.25" | 1 1/4"-12 | Black Ultra-Corrosion Resistant-Coated Steel | 0.375" | Chrome-Plated Steel | 1" | Steel | 32° to 150° | 0000000 | 000000 |
| 3,450 | 5 | 0.91" | 5.69" | 4.78" | 1.75" | 1 3/4"-12 | Black Ultra-Corrosion Resistant-Coated Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
| 6,900 | 2 | 1.91" | 7.69" | 5.78" | 1.75" | 1 3/4"-12 | Black Ultra-Corrosion Resistant-Coated Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
| 10,350 | 2 | 2.91" | 9.69" | 6.78" | 1.75" | 1 3/4"-12 | Black Ultra-Corrosion Resistant-Coated Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
Metric Threaded-Body Mount
Variable Adjustment
Body | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Body Thread Size | Body Material | Rod Dia. | Rod Material | Bumper Dia. | Bumper Material | Temp. Range, ° F | Each | |
Variable Adjustment | ||||||||||||||
| 35 | 25 | 0.4" | 3.31" | 2.91" | 0.42" | M12 | Black Ultra-Corrosion Resistant-Coated Steel | 0.13" | Stainless Steel | 0.3" | Steel | 32° to 150° | 0000000 | 000000 |
| 200 | 25 | 0.5" | 3.67" | 3.17" | 0.46" | M14 | Black Ultra-Corrosion Resistant-Coated Steel | 0.19" | Stainless Steel | 0.47" | Nylon | 32° to 150° | 0000000 | 00000 |
| 1,500 | 7 | 0.91" | 5.44" | 4.53" | 1.15" | M33 | Black Ultra-Corrosion Resistant-Coated Steel | 0.375" | Chrome-Plated Steel | 1" | Steel | 32° to 150° | 0000000 | 000000 |
| 3,450 | 5 | 0.91" | 5.69" | 4.78" | 1.65" | M45 | Black Ultra-Corrosion Resistant-Coated Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
| 6,900 | 2 | 1.91" | 7.69" | 5.78" | 1.65" | M45 | Black Ultra-Corrosion Resistant-Coated Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |