Calculations

Access essential engineering tools and calculators to support accurate design, analysis, and real-world machine performance.

Hydraulic Cylinder Calculation

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Hydraulic System Calculator

Hydraulic Basic Calculation

Hydraulic system design begins with a few essential calculations. By knowing cylinder bore, rod diameter, stroke, pressure, and oil flow, it is possible to estimate output force, return force, speed, and oil volume requirement. These basic hydraulic formulas help engineers and technicians select the right cylinder, pump, and system parameters for reliable machine performance.

1. Cylinder Piston Area
Piston Area = π × D² / 4

2. Rod Area
Rod Area = π × d² / 4

3. Annular Area (Return Side Area)
Annular Area = Piston Area − Rod Area

4. Cylinder Force (Extension Force)
Force = Pressure × Piston Area

5. Return Force (Retraction Force)
Return Force = Pressure × Annular Area

6. Oil Volume for Full Stroke
Oil Volume = Area × Stroke

7. Cylinder Speed
Speed = Flow Rate / Area

8. Time for Full Stroke
Time = Stroke / Speed

Important Notes

• এখানে D = Cylinder Bore Diameter
• d = Rod Diameter
• Pressure সাধারণত bar বা MPa এ দেওয়া হয়
• Area সাধারণত mm² বা cm² এ নেওয়া হয়
• Flow Rate সাধারণত LPM (litre per minute) এ ব্যবহৃত হয়
• Force সাধারণত Newton (N), kN, বা Ton এ convert করা হয়

Practical Engineering Use

These formulas are useful for:

• Hydraulic cylinder selection
• Press machine design
• Lift and actuator sizing
• Speed estimation
• Pump flow requirement calculation
• Overall hydraulic system performance analysis