Cylinder Bore: 3.5″ | Piston Area: 9.621 in²
At 3,000 PSI → 28,863 lbs (14.4 tons)
3.5″ Bore Hydraulic Cylinder Force Table
| Pressure | Force (lbs) | Force (tons) | Force (kN) |
|---|---|---|---|
| 500 PSI | 4,811 lbs | 2.4 tons | 21.4 kN |
| 1,000 PSI | 9,621 lbs | 4.8 tons | 42.8 kN |
| 1,500 PSI | 14,432 lbs | 7.2 tons | 64.2 kN |
| 2,000 PSI | 19,242 lbs | 9.6 tons | 85.6 kN |
| 2,500 PSI | 24,053 lbs | 12.0 tons | 107.0 kN |
| 3,000 PSI | 28,863 lbs | 14.4 tons | 128.4 kN |
| 3,500 PSI | 33,674 lbs | 16.8 tons | 149.8 kN |
| 4,000 PSI | 38,485 lbs | 19.2 tons | 171.2 kN |
| 5,000 PSI | 48,106 lbs | 24.1 tons | 214.0 kN |
| 6,000 PSI | 57,727 lbs | 28.9 tons | 256.8 kN |
| 8,000 PSI | 76,969 lbs | 38.5 tons | 342.4 kN |
| 10,000 PSI | 96,211 lbs | 48.1 tons | 428.0 kN |
How to Calculate 3.5″ Bore Cylinder Force
Force = Pressure × Piston Area
Area = π × (Bore ÷ 2)² = π × (1.75)² = 9.6211 in²
To find the push force of a 3.5″ bore hydraulic cylinder, multiply the operating pressure (in PSI) by the piston area (9.621 in²).
Example at 3,000 PSI:
Force = 3,000 × 9.6211 = 28,863 lbs (14.4 tons)
Rod-Side (Pull) Force
The retract force is always less than the push force because the rod displaces part of the piston area. To calculate pull force, subtract the rod cross-section area from the bore area:
Pull Force = Pressure × (Bore Area − Rod Area)
Important Notes
- These are theoretical forces. Real-world output is 3-5% less due to seal friction.
- Rod diameter matters for retract force — larger rods reduce pull force significantly.
- Never exceed rated pressure. Most industrial cylinders are rated for 3,000 or 5,000 PSI.
- Dynamic vs static: Moving loads require additional force to overcome inertia and friction.
Other Bore Sizes
- 1″ bore force chart
- 1.5″ bore force chart
- 2″ bore force chart
- 2.5″ bore force chart
- 3″ bore force chart
- 3.25″ bore force chart
- 4″ bore force chart
- 4.5″ bore force chart
Need custom calculations?
Use our Interactive Hydraulic Cylinder Calculator for any bore, rod, and pressure combination.
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