Technical library

Gas Spring Technical Guides

Choose a guide based on what you need to do. Each one explains what to measure, how to approach the calculation or selection, and when to ask Gemini to review the application.

For engineers, equipment designers, maintenance teams, buyers and owners working with new or replacement gas springs.

Choose the guide that matches your task

Replacing an existing spring? Start with measurement. Designing or changing a hinged lid? Start with force calculation.

How to Measure a Gas Spring for Replacement

Choose this guide when you have an existing spring or mounting layout and need to document it accurately before requesting a replacement.

Best for: Maintenance teams, equipment owners, buyers and engineers replacing an existing gas spring.

What you will get

Know where to measure extended length, compressed length and stroke
Record the force marking, body diameters and both end connections
Prepare the photographs and application details needed for a useful replacement review

7 minute read

Open the measurement guide

How to Calculate Gas Spring Force for a Hinged Lid

Choose this guide when you are designing or changing a hinged application and need to understand the force and geometry before selecting a spring.

Best for: Engineers, designers, fabricators and equipment owners sizing lift assistance for a hinged lid, hatch, door or flap.

What you will get

Understand why lid weight alone does not determine gas spring force
Work through a simplified moment-balance example in newtons
Collect the geometry needed for the calculator and an engineering review

8 minute read

Open the force calculation guide

Use guides to prepare—not approve—an application

General guidance cannot account for every load, linkage, environment or safety requirement.

These guides help you collect better measurements and understand the selection process. They do not replace a product drawing, application-specific engineering review or a risk assessment by the equipment designer.

When you are ready, use the gas spring calculator for a rigid hinged door or flap, or organize known dimensions and fittings in the gas spring configurator.

Call us for assistance: +1 778 475-5611
Send us an e-mail.: gemini@geminigassprings.com
Working Hours: Mon – Fri: 8am – 5pm; Pacific Time.