How much force can a hydraulic cylinder generate?
It's a basic hydraulics question, but it's a common one, so we go to our friends at Enerpac for the answer!
The following infographic shows how hydraulic forces are calculated, based on the equipment provided by Enerpac themselves.
The amount of force a hydraulic cylinder can generate is equal to the hydraulic pressure times the “effective area” of the cylinder (see cylinder selection charts).
|Example 1An RC-106 cylinder with 14,5 cm2 effective area operating at 700 bar will generate what force?
Force = 7000 N/cm2 x 14,5 cm2 = 101500 N = 101,5 kN
Cylinder Oil Capacity
The volume of oil required for a cylinder (cylinder oil capacity) is equal to the effective area of the cylinder times the stroke*.
* Note: these are theoretical examples and do not take into account the compressibility of oil under high pressure.
| Example 1
An RC-158 cylinder with 20,3 cm2 effective area and 200 mm stroke requires what volume of oil?
Oil Capacity = 20,3 cm2 x 20 cm = 406 cm3Example 2:
An RC-5013 cylinder has an effective area of 71,2 cm2 and a stroke of 320 mm. How much oil will be required?
Oil Capacity = 71,2 cm2 x 32 cm = 2278,4 cm3Example 3:
An RC-10010 cylinder has an effective area of 133,3 cm2 and a stroke of 260 mm. How much oil will it require?
Oil Capacity = 133,3 cm2 x 26 cm = 3466 cm3Example 4:
Four RC-308 cylinders are being used, each with an effective area of 42,1 cm2 and a stroke of 209 mm. How much oil will be required?
Oil Capacity = 42,1 cm2 x 20,9 cm = 880 cm3 for one cylinder. Multiply by four to obtain the required capacity: 3520 cm3