Hydraulic Cylinder Capacity Calculator Metric

Hydraulic Cylinder Capacity Formula:

\[ Capacity (L) = \pi \times \left(\frac{Bore}{2}\right)^2 \times Stroke \div 1000000 \]

Capacity:

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1. What is Hydraulic Cylinder Capacity?

Hydraulic cylinder capacity refers to the volume of fluid required to fully extend the cylinder. It's calculated based on the cylinder's bore diameter and stroke length, representing the displacement volume of the cylinder.

2. How Does the Calculator Work?

The calculator uses the hydraulic cylinder capacity formula:

\[ Capacity (L) = \pi \times \left(\frac{Bore}{2}\right)^2 \times Stroke \div 1000000 \]

Where:

\( Bore \) — Cylinder bore diameter in millimeters (mm)
\( Stroke \) — Cylinder stroke length in millimeters (mm)
\( \pi \) — Mathematical constant (approximately 3.14159)
1000000 — Conversion factor from mm³ to liters

Explanation: The formula calculates the volume of a cylinder (πr²h) and converts it from cubic millimeters to liters.

3. Importance of Capacity Calculation

Details: Knowing cylinder capacity is essential for proper hydraulic system design, pump selection, and determining fluid requirements. It helps in sizing reservoirs and ensuring adequate flow rates.

4. Using the Calculator

Tips: Enter bore diameter and stroke length in millimeters. Both values must be positive numbers. The result will be displayed in liters (L).

5. Frequently Asked Questions (FAQ)

Q1: Why is capacity measured in liters?
A: Liters are the standard unit for hydraulic fluid volume in metric systems, making it easier to calculate fluid requirements and reservoir sizes.

Q2: How does rod diameter affect capacity?
A: This calculator gives total cylinder capacity. For double-acting cylinders, the rod-side capacity would be less due to the rod volume.

Q3: Can I use this for pneumatic cylinders?
A: Yes, the same formula applies for calculating the air volume in pneumatic cylinders, though pneumatic systems typically use different sizing considerations.

Q4: What's the difference between bore and diameter?
A: In this context, bore refers to the internal diameter of the cylinder where the piston moves.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise for perfect cylinders. Real-world factors like manufacturing tolerances may cause slight variations.