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| | | Jergens. www.jergensinc.com | | |
| | | STAYLOCK CLAMPS | | |
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| | | Converting Manual Power to Hydraulic Pressure If you are currently using bolts, nuts, straps, etc. to hold a part on a fixture, use this chart to help decide how much hydraulic holding force would be needed to convert the set-up to hydraulic clamping. | | |
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| | | Holding Force (lbs) Thread Size | | |
| | | Torque | | |
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| | | | | | | | | | | | | (ft. lbs) | 1/2-13 | 5/8-11 | 3/4-10 | 1- 8 | | | | 10 | 1090 | 870 | 730 | 550 | | | | 20 | 2180 | 1750 | 1450 | 1090 | | | | *30 | 3270 | 2600 | 2120 | 1640 | | | | *40 | 4360 | 3490 | 2900 | 2180 | | | | *50 | 5450 | 4360 | 3640 | 2730 | | | | *60 | 6550 | 5240 | 4360 | 3270 | | | | 80 | 8730 | 6980 | 5820 | 4360 | | | | 100 | - | 8730 | 7270 | 5450 | | | | 120 | - | 10470 | 8730 | 6540 | | | | 140 | - | 12200 | 10180 | 7640 | | | | 160 | - | 13950 | 11640 | 8730 | | | | | | | | | | | | |
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| | | * Bold type represents the average torque generated by the operator with a 12" wrench. | | |
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| | | T KD | | |
| | | P= | | |
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| | | P = Induced Tension (lbs.) T = Torque (in.lbs.) D = Nominal Screw Diameter (in.) K*= Friction, varies with material, finish, & lubricity (.19 to .25) *Above values based on K equaling .22 | | |
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| | | Typical Circuit Diagram of a StayLock Clamping System | | |
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| | | STAYLOCK CLAMPS | | |
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| | | C | | |
| | | 4-WAY, 3-POSITION, ZERO-LEAKAGE VALVE | | |
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| | | R | | |
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| | | C | | |
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| | | R | | |
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| | | R = RELEASE PORT C = CLAMP PORT | | |
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| | | 12.16 | | |
| | | Jergens, Inc. • Jergens Way • 15700 S. Waterloo Road • Cleveland, Ohio 44110-3898 | | |
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