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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)
Adjustable Air Springs
Isolate vibration and absorb shock from moving equipment, even with changing loads. Also for leveling and lifting, use compressed air to adjust air springs to the height and force required for your application. They’re often used with vibratory screen and conveyors; loading and transfer stations; and sensitive testing and measuring equipment. Do not extend beyond height at full stroke.
Miniature Sleeve
Air Inlet | Mount. Hole | Mount. Stud | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. @ Full Stroke | Compressed Ht. | Stroke Lg. | Extended Ht. | Full Stroke Lifting Force @ Pressure | Beginning Stroke Lifting Force @ Pressure | OD @ Full Stroke | Temp. Range, ° F | Air Spring Material | Thread Type | Gender | Pipe Size  | Thread Size | Dp. | Thread Size | Lg. | Each | |
| 4.6" | 1.5" | 2.1" | 3.6" | 10 lbs. @ 20 psi 40 lbs. @ 60 psi 120 lbs. @ 100 psi | 120 lbs. @ 20 psi 360 lbs. @ 60 psi 600 lbs. @ 100 psi | 3.6" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/8 | 5/16"-18 | 7/16" | 5/8"-11 | 1" | 0000000 | 000000 |
Sleeve
Air Inlet | Mount. Hole | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. @ Full Stroke | Compressed Ht. | Stroke Lg. | Extended Ht. | Full Stroke Lifting Force @ Pressure | Beginning Stroke Lifting Force @ Pressure | OD @ Full Stroke | Temp. Range, ° F | Air Spring Material | Thread Type | Gender | Pipe Size | Thread Size | Dp. | Each | |
| 6.88" | 2.2" | 4" | 6.25" | 140 lbs. @ 20 psi 320 lbs. @ 60 psi 560 lbs. @ 100 psi | 250 lbs. @ 20 psi 700 lbs. @ 60 psi 1,250 lbs. @ 100 psi | 5.6" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/8 | 3/8"-16 | 1/2" | 0000000 | 0000000 |
| 7.73" | 2.2" | 4.9" | 7.1" | 80 lbs. @ 20 psi 180 lbs. @ 60 psi 310 lbs. @ 100 psi | 340 lbs. @ 20 psi 700 lbs. @ 60 psi 1,100 lbs. @ 100 psi | 4.6" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/8 | 3/8"-16 | 1/2" | 0000000 | 000000 |
| 8.72" | 3.6" | 4.4" | 8" | 40 lbs. @ 20 psi 60 lbs. @ 60 psi 110 lbs. @ 100 psi | 60 lbs. @ 20 psi 200 lbs. @ 60 psi 360 lbs. @ 100 psi | 3.25" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/8 | 1/2"-13 | 5/8" | 0000000 | 000000 |
| 10.21" | 4" | 5.5" | 9.5" | 160 lbs. @ 20 psi 500 lbs. @ 60 psi 800 lbs. @ 100 psi | 190 lbs. @ 20 psi 540 lbs. @ 60 psi 950 lbs. @ 100 psi | 5.7" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/8 | 1/2"-13 | 5/8" | 0000000 | 000000 |
| 11.21" | 4" | 6.5" | 10.5" | 140 lbs. @ 20 psi 340 lbs. @ 60 psi 540 lbs. @ 100 psi | 170 lbs. @ 20 psi 520 lbs. @ 60 psi 850 lbs. @ 100 psi | 4.6" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/8 | 1/2"-13 | 5/8" | 0000000 | 000000 |
| 11.21" | 4" | 6.5" | 10.5" | 180 lbs. @ 20 psi 460 lbs. @ 60 psi 750 lbs. @ 100 psi | 230 lbs. @ 20 psi 660 lbs. @ 60 psi 1,100 lbs. @ 100 psi | 5.6" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/8 | 1/2"-13 | 5/8" | 0000000 | 000000 |
| 12" | 4.1" | 6.8" | 10.9" | 240 lbs. @ 20 psi 700 lbs. @ 60 psi 1,200 lbs. @ 100 psi | 420 lbs. @ 20 psi 1,100 lbs. @ 60 psi 2,000 lbs. @ 100 psi | 7" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/8 | __ | __ | 0000000 | 000000 |
Single Tire
Air Inlet | Mount. Hole | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. @ Full Stroke | Compressed Ht. | Stroke Lg. | Extended Ht. | Full Stroke Lifting Force @ Pressure | Beginning Stroke Lifting Force @ Pressure | OD @ Full Stroke | Temp. Range, ° F | Air Spring Material | Thread Type | Gender | Pipe Size | Ctr.-to-Ctr. | Thread Size | Dp. | Each | |
| 3.8" | 1.8" | 2" | 3.8" | 60 lbs. @ 20 psi 280 lbs. @ 60 psi 560 lbs. @ 100 psi | 280 lbs. @ 20 psi 900 lbs. @ 60 psi 1,500 lbs. @ 100 psi | 5.7" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/4 | 1 3/4" | 3/8"-16 | 5/8" | 0000000 | 0000000 |
| 4.8" | 1.8" | 3" | 4.8" | 30 lbs. @ 20 psi 260 lbs. @ 60 psi 520 lbs. @ 100 psi | 320 lbs. @ 20 psi 950 lbs. @ 60 psi 1,600 lbs. @ 100 psi | 6" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/4 | 1 3/4" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 4.8" | 2" | 2.8" | 4.8" | 60 lbs. @ 20 psi 440 lbs. @ 60 psi 850 lbs. @ 100 psi | 420 lbs. @ 20 psi 1,200 lbs. @ 60 psi 2,000 lbs. @ 100 psi | 6.5" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/4 | 1 3/4" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 5.2" | 2" | 3.2" | 5.2" | 100 lbs. @ 20 psi 350 lbs. @ 60 psi 850 lbs. @ 100 psi | 500 lbs. @ 20 psi 1,500 lbs. @ 60 psi 2,600 lbs. @ 100 psi | 7.7" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/4 | 1 3/4" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 5.2" | 3.2" | 2" | 5.9" | 280 lbs. @ 20 psi 850 lbs. @ 60 psi 1,500 lbs. @ 100 psi | 900 lbs. @ 20 psi 2,900 lbs. @ 60 psi 4,900 lbs. @ 100 psi | 11" | -56° to 135° | Natural Rubber | NPTF | Female | 1/4 | 3 1/2" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 5.3" | 2" | 3.3" | 5.3" | 100 lbs. @ 20 psi 550 lbs. @ 60 psi 1,100 lbs. @ 100 psi | 660 lbs. @ 20 psi 2,100 lbs. @ 60 psi 3,600 lbs. @ 100 psi | 8.7" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/4 | 2 3/4" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 5.3" | 2.3" | 3" | 5.9" | 280 lbs. @ 20 psi 850 lbs. @ 60 psi 1,500 lbs. @ 100 psi | 1,100 lbs. @ 20 psi 3,300 lbs. @ 60 psi 5,600 lbs. @ 100 psi | 11" | -56° to 135° | Natural Rubber | NPTF | Female | 1/4 | 3 1/2" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 5.4" | 2" | 3.4" | 7.1" | 10 lbs. @ 20 psi 300 lbs. @ 60 psi 750 lbs. @ 100 psi | 750 lbs. @ 20 psi 1,800 lbs. @ 60 psi 3,000 lbs. @ 100 psi | 7" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/4 | 1 3/4" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 5.6" | 2.6" | 3" | 7.2" | 440 lbs. @ 20 psi 1,800 lbs. @ 60 psi 3,600 lbs. @ 100 psi | 1,700 lbs. @ 20 psi 5,100 lbs. @ 60 psi 8,800 lbs. @ 100 psi | 13.2" | -56° to 135° | Natural Rubber | NPTF | Female | 1/4 | 6.2" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| Inflation Valve | 0000000 | Each | 000000 |
Double Tire
Air Inlet | Mount. Hole | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. @ Full Stroke | Compressed Ht. | Stroke Lg. | Extended Ht. | Full Stroke Lifting Force @ Pressure | Beginning Stroke Lifting Force @ Pressure | OD @ Full Stroke | Temp. Range, ° F | Air Spring Material | Thread Type | Gender | Pipe Size | Ctr.-to-Ctr. | Thread Size | Dp. | Each | |
| 7.1" | 2.8" | 4.3" | 7.7" | 0 lbs. @ 20 psi 220 lbs. @ 60 psi 580 lbs. @ 100 psi | 750 lbs. @ 20 psi 1,700 lbs. @ 60 psi 2,800 lbs. @ 100 psi | 6.5" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/4 | 1 3/4" | 3/8"-16 | 5/8" | 0000000 | 0000000 |
| 9.5" | 2.9" | 6.6" | 10.1" | 30 lbs. @ 20 psi 450 lbs. @ 60 psi 1,000 lbs. @ 100 psi | 1,200 lbs. @ 20 psi 3,100 lbs. @ 60 psi 5,000 lbs. @ 100 psi | 8.8" | -20° to 135° | Neoprene Rubber | NPTF | Female | 1/4 | 2 3/4" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 9.5" | 3.2" | 6.3" | 10.8" | 20 lbs. @ 20 psi 400 lbs. @ 60 psi 1,100 lbs. @ 100 psi | 1,000 lbs. @ 20 psi 3,300 lbs. @ 60 psi 5,700 lbs. @ 100 psi | 10.3" | -56° to 135° | Natural Rubber | NPTF | Female | 1/4 | 3 1/2" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 9.5" | 3.4" | 6.1" | 11.1" | 240 lbs. @ 20 psi 1,200 lbs. @ 60 psi 2,700 lbs. @ 100 psi | 1,600 lbs. @ 20 psi 5,500 lbs. @ 60 psi 9,400 lbs. @ 100 psi | 13" | -56° to 135° | Natural Rubber | NPTF | Female | 1/4 | 6.2" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 10.7" | 3.5" | 7.2" | 12.2" | 120 lbs. @ 20 psi 800 lbs. @ 60 psi 1,500 lbs. @ 100 psi | 1,250 lbs. @ 20 psi 3,600 lbs. @ 60 psi 6,000 lbs. @ 100 psi | 10.3" | -56° to 135° | Natural Rubber | NPTF | Female | 1/4 | 3 1/2" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| 12.7" | 4.3" | 8.4" | 14.4" | 70 lbs. @ 20 psi 1,150 lbs. @ 60 psi 2,600 lbs. @ 100 psi | 1,800 lbs. @ 20 psi 5,800 lbs. @ 60 psi 10,000 lbs. @ 100 psi | 13.7" | -56° to 135° | Natural Rubber | NPTF | Female | 1/4 | 6.2" | 3/8"-16 | 5/8" | 0000000 | 000000 |
| Inflation Valve | 0000000 | Each | 000000 |
Triple Tire
Air Inlet | Mount. Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. @ Full Stroke | Compressed Ht. | Stroke Lg. | Extended Ht. | Full Stroke Lifting Force @ Pressure | Beginning Stroke Lifting Force @ Pressure | OD @ Full Stroke | Temp. Range, ° F | Air Spring Material | Thread Type | Gender | Pipe Size | Ctr.-to-Ctr. | Thread Size | Dp. | Each | |
| 15.2" | 5" | 10.2" | 18" | 80 lbs. @ 20 psi 1,900 lbs. @ 60 psi 4,700 lbs. @ 100 psi | 2,600 lbs. @ 20 psi 8,100 lbs. @ 60 psi 15,000 lbs. @ 100 psi | 15.5" | -56° to 135° | Natural Rubber | NPTF | Female | 1/4 | 6 1/4" | 3/8"-16 | 5/8" | 0000000 | 0000000 |
| Inflation Valve | 0000000 | Each | 000000 |
Light Duty Adjustable Shock Absorbers
Also known as snubbers, use these shock absorbers in low-load, high-cycle applications. They counteract the energy of moving objects to prevent damage to equipment and material. Turn the knob to change deceleration to suit varying loads and speeds. Through-wall shock absorbers have a stud and nut under the removable knob for mounting through a panel or bracket.
For technical drawings and 3-D models, click on a part number.
Through Wall
Rod | Mount. Stud | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Body Dia. | Body Material | Dia. | Material | Thread Size | Lg. | Each | |
Variable Adjustment | ||||||||||||
| 4 | 600 | 1.1" | 4.32" | 2.99" | 1.01" | Rubber-Coated Borosilicate Glass | 0.375" | Urethane | 3/8"-32 | 1/8" | 0000000 | 000000 |
| 9 | 330 | 1.3" | 4.15" | 2.62" | 1.35" | Rubber-Coated Borosilicate Glass | 0.375" | Urethane | 3/8"-32 | 1/8" | 0000000 | 00000 |
Flange Mount
Rod | Flange | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Body Dia. | Body Material | Dia. | Material | Tip Material | Location | Wd. | Ht. | Mount. Hole Ctr.-to-Ctr. | Mount. Hole Dia. | Thick. | Each | |
Variable Adjustment | |||||||||||||||||
| 36 | 200 | 2.3" | 6.7" | 3.9" | 1.74" | Rubber-Coated Borosilicate Glass | 0.312" | Acetal | Urethane | Rear | 1 3/4" | 1 3/4" | 1.38" | 0.171" | 1/8" | 0000000 | 0000000 |
| 84 | 70 | 2.3" | 6.7" | 3.9" | 2.21" | Rubber-Coated Borosilicate Glass | 0.312" | Acetal | Urethane | Rear | 2 1/8" | 2 1/8" | 1 3/4" | 0.171" | 1/8" | 0000000 | 000000 |
Adjustable Extreme-Force Bolt-Down
Vibration-Damping Mounts with Threaded Hole
Connect these mounts to your air supply for vibration and shock isolation in compression load applications. They handle the high impact of equipment such as punch presses, blowers, forging hammers, shakers, vibrators, and air compressors. Use the holes in the base to bolt down these mounts to keep your equipment stationary. Neoprene rubber has good resistance to oil and gasoline. You can add or release air for leveling (±1/4" adjustment).
For technical drawings and 3-D models, click on a part number.
Mounting Holes | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Capacity per Mount, lbs. | Deflection @ Capacity | O'all Ht. | Dia. | Ht. | Base Lg. | Base Wd. | Hardness | Max. Pressure, psi | Temperature Range, °F | Features | Mounting Fasteners Included | No. of | Dia. | Ctr.-to-Ctr. | Each | |
Neoprene Rubber with Aluminum Base and Aluminum Plate | |||||||||||||||||
| 3/8"-16 | 100 | 1" | 2.5" | 2.88" | 2" | 3" | 3" | Durometer 60A | 60 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.3" | 2.38" | 00000000 | 0000000 |
| 1/2"-13 | 300 | 1" | 2.45" | 4.14" | 1.91" | 4.19" | 4.19" | Durometer 60A | 60 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.3" | 3.5" | 00000000 | 000000 |
| 1/2"-13 | 600 | 1.5" | 3.5" | 5" | 2.94" | 5.12" | 5.12" | Durometer 60A | 80 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.3" | 4.25" | 00000000 | 000000 |
| M10 | 100 | 0.5" | 2.5" | 2.89" | 1.94" | 3" | 3" | Durometer 65A | 85 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.3" | 2.38" | 00000000 | 00000 |
| M12 | 300 | 0.5" | 2.5" | 4.14" | 1.94" | 4.19" | 4.19" | Durometer 65A | 85 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.3" | 3.5" | 00000000 | 00000 |
| M12 | 550 | 0.5" | 3.5" | 5" | 2.94" | 5.13" | 5.13" | Durometer 65A | 85 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.3" | 4.25" | 00000000 | 000000 |
| M12 | 1,200 | 0.5" | 3.5" | 6.74" | 2.94" | 6.88" | 6.88" | Durometer 65A | 85 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.3" | 6" | 00000000 | 000000 |
| M16 | 2,400 | 0.5" | 3.5" | 9.66" | 2.94" | 10" | 10" | Durometer 65A | 85 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.56" | 8.5" | 00000000 | 000000 |
Neoprene Rubber with Aluminum Base and Steel Plate | |||||||||||||||||
| 1/2"-13 | 1,200 | 1.5" | 3.5" | 6.74" | 2.94" | 6.88" | 6.88" | Durometer 60A | 80 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.3" | 6" | 00000000 | 000000 |
| 5/8"-11 | 2,400 | 1.25" | 3.5" | 9.66" | 2.94" | 10" | 10" | Durometer 60A | 80 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.56" | 8.5" | 00000000 | 000000 |
| 5/8"-11 | 4,800 | 1.5" | 3.5" | 13.31" | 2.94" | 13.5" | 13.5" | Durometer 60A | 80 | -20° to 180° | 0.30" Dia. Threaded Air Inlet | No | 4 | 0.56" | 12" | 00000000 | 000000 |