Staylock Clamps - Jergens & Acme - #16

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Text version of the page
Jergens.
www.jergensinc.com
STAYLOCK CLAMPS
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.
Holding Force (lbs) Thread Size
Torque
(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
* Bold type represents the average torque generated by the operator with a 12" wrench.
T
KD
P=
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
Typical Circuit Diagram of a StayLock Clamping System
STAYLOCK CLAMPS
R
C
R
C
C
4-WAY, 3-POSITION, ZERO-LEAKAGE VALVE
R
C
R
R = RELEASE PORT C = CLAMP PORT
12.16
Jergens, Inc. • Jergens Way • 15700 S. Waterloo Road • Cleveland, Ohio 44110-3898

pageCatalog pdf di En 2012-02-06-12