Westward 3ZC68C Instrucciones De Operación página 5

Westward Operating Instructions and Parts Manual
LOAD - PRESSURE CORRELATION CHART
Models 3ZC68C & 3ZC69C
Always monitor the force applied to work piece by using a load cell and indicator or you may monitor pressure
developed in the ram by using an in-line pressure gauge, then calculate the applied force using the formula:
Load
(lbs)
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000
15,000
16,000
17,000
18,000
19,000
20,000
*For Model 50040, A = 0.998 in²; For Model 50100, A = 2.411 in²
Example 1
Example 2
Manufactured for Grainger International, Inc.
100 Grainger Pkwy., Lake Forest IL 60045 U.S.A.
Hydraulic Ram System Kits
where F = Force/ Load (lbs)
P = Hydraulic Working Pressure (psi) and
A = Ram Effective Area (in²)*
Pressure (psi) of 4 Ton Ram,
where A = 0.998 in
1,002
2,004
3,006
4,008
5,010
6,012
7,014
8,016
Model 50040 exerting 5,000 lbs of force will require what pressure?
Pressure = Force Ram Effective Area = 5,000 lbs
Model 50100 operating at 6,000 psi will generate what force?
Force = Pressure x Ram Effective Area = 6,000 psi x 2.411 in
F = P x A
Pressure (psi) of 10 Ton Ram,
where A = 2.411 in
2
5
3ZC68C and 3ZC69C
2
415
830
1,244
1,659
2,074
2,489
2,903
3,318
3,733
4,148
4,562
4,977
5,392
5,807
6,221
6,636
7,051
7,466
7,881
8,295
0.998 in² = 5,010 psi
= 14,466 lbs
2