Gas Spring Calculator
Calculate the required force, mounting positions, and specifications for gas springs used in lifting applications such as hatches, lids, and doors.
Published by:
isCalculator Editorial Team
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How to use this tool?
Gas Spring Calculator Guide
This calculator helps you determine the required force for gas springs used to lift a lid or hatch. All inputs must be in metric units (kg, mm, degrees).
- Enter lid details: Provide the lid weight (kg), lid length (mm), and the distance from the hinge to the spring mount point (mm).
- Specify spring setup: Enter the number of springs (at least 1) and the mount angle (0–90°, exclusive).
- Define stroke range: Input the minimum and maximum extension lengths (mm) of the spring. Max must be greater than min.
- Set safety factor: Use a value ≥ 1 (default 1.2) to account for friction and wear.
- Calculate: Click the “Calculate” button. Results show force per spring, total force, stroke length, and recommended spring force (with safety factor).
Tip: Ensure the mount angle is between 0° and 90° for accurate results. The formula used is: F = (W × L) / (n × d × sin(θ)) × SF.
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Frequently Asked Questions
A gas spring is a device that uses compressed gas to exert a force, commonly used to lift or counterbalance lids, hatches, and doors.
The force is calculated using the formula F = (W * L) / (n * d * sin(θ)) * SF, where W is the lid weight, L is lid length, n is number of springs, d is hinge distance, θ is mount angle, and SF is safety factor.
A safety factor between 1.2 and 1.5 is typical to account for friction and variations. Adjust based on application criticality.