1. What is a Hydraulic Cylinder Capacity Calculator?

Definition: This calculator determines the fluid capacity of a hydraulic cylinder based on its cross-sectional area and stroke length.

Purpose: It helps hydraulic system designers and maintenance technicians calculate the fluid volume required to fully extend a cylinder.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{cyl} \) — Cylinder fluid capacity (cubic inches)
• \( A_c \) — Cross-sectional area of cylinder (square inches)
• \( L_s \) — Stroke length (inches)

Explanation: The cylinder's fluid capacity is simply the product of its internal area and the distance the piston travels.

3. Importance of Cylinder Capacity Calculation

Details: Accurate capacity calculations ensure proper hydraulic system design, correct pump sizing, and efficient fluid reservoir planning.

4. Using the Calculator

Tips: Enter the cylinder's cross-sectional area (πr² for circular cylinders) and stroke length. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I find the cross-sectional area?
A: For circular cylinders, use \( π \times (bore diameter/2)^2 \). For other shapes, use the appropriate area formula.

Q2: Does this account for the piston rod volume?
A: No, this calculates total cylinder volume. For rod-side volume, subtract rod area from piston area.

Q3: What units should I use?
A: The calculator uses inches for consistent units (in² × in = in³). Convert metric units if necessary.

Q4: How does this relate to hydraulic fluid requirements?
A: The calculated volume equals the fluid needed for one full extension (excluding lines and other components).

Q5: Can I use this for double-acting cylinders?
A: Yes, but calculate both sides separately (rod side and piston side will differ).