Cylinder Bore: 3.25″ | Piston Area: 8.296 in²
At 3,000 PSI → 24,887 lbs (12.4 tons)
3.25″ Bore Hydraulic Cylinder Force Table
| Pressure | Force (lbs) | Force (tons) | Force (kN) |
|---|---|---|---|
| 500 PSI | 4,148 lbs | 2.1 tons | 18.5 kN |
| 1,000 PSI | 8,296 lbs | 4.1 tons | 36.9 kN |
| 1,500 PSI | 12,444 lbs | 6.2 tons | 55.4 kN |
| 2,000 PSI | 16,592 lbs | 8.3 tons | 73.8 kN |
| 2,500 PSI | 20,739 lbs | 10.4 tons | 92.3 kN |
| 3,000 PSI | 24,887 lbs | 12.4 tons | 110.7 kN |
| 3,500 PSI | 29,035 lbs | 14.5 tons | 129.2 kN |
| 4,000 PSI | 33,183 lbs | 16.6 tons | 147.6 kN |
| 5,000 PSI | 41,479 lbs | 20.7 tons | 184.5 kN |
| 6,000 PSI | 49,775 lbs | 24.9 tons | 221.4 kN |
| 8,000 PSI | 66,366 lbs | 33.2 tons | 295.2 kN |
| 10,000 PSI | 82,958 lbs | 41.5 tons | 369.0 kN |
How to Calculate 3.25″ Bore Cylinder Force
Force = Pressure × Piston Area
Area = π × (Bore ÷ 2)² = π × (1.625)² = 8.2958 in²
To find the push force of a 3.25″ bore hydraulic cylinder, multiply the operating pressure (in PSI) by the piston area (8.296 in²).
Example at 3,000 PSI:
Force = 3,000 × 8.2958 = 24,887 lbs (12.4 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
- 3.5″ 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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