What information do I need to configure a gas spring?

Prepare the material, rod and tube size, stroke, extended length, nominal force and the required connection at each end. Also note the operating temperature, damping, protective accessories, quantity and any known part number.

Can the configurator determine the gas spring force for me?

The configurator expects a force value. If you are sizing a compression spring for a rigid hinged door or flap, use Gemini's gas spring calculator first and carry the preliminary result into the configurator.

Can I enter another manufacturer's part number?

Yes. The configurator includes an optional field for another brand's part number. Gemini still needs to verify dimensions, force, fittings and operating requirements before confirming a replacement.

Does completing the configurator approve the spring for installation?

No. The configurator organizes a specification for review. Gemini must confirm product compatibility, mounting, operating conditions and safety requirements before the spring is ordered or installed.

Specification tool

Gas Spring Configurator

Build a clear gas spring specification by selecting the material, dimensions, force, end fittings and operating options. Use the result to organize a custom, OEM or replacement requirement for review by Gemini Gas Springs.

Open the configurator Prepare your specification

For known spring requirements, replacement references and custom specifications.

When to use the configurator

Use it when you know the spring specification—or have a part to replace.

Specify a new spring: Organize the dimensions, force, end fittings and operating options for a new application or OEM requirement.
Describe a replacement: Enter measurements and a known Gemini or competitor part number so our team can review the replacement requirement.
Continue from a calculation: Bring a preliminary force and geometry result from the gas spring calculator into a catalog-backed specification.

What you can specify

Prepare these inputs before opening the tool.

Material: Choose a steel or 316 stainless steel gas spring based on the operating environment and application requirements.
Rod and tube size: Select the main spring diameters. Available dimensions and compatible choices depend on the selected product construction.
Stroke and extended length: Enter the required travel and centre-to-centre extended lengths using metric or imperial units.
Force: Enter the required nominal force. If you do not know it, use the gas spring calculator before opening the configurator.
End connections: Specify the fitting at each end, including threads, eyelets, clevises, ball joints, ball sockets or rod-end bearings.
Operating options: Review speed, working temperature, damping, bleed-off valve, rod protection, locking protection and dust-boot needs.
Quantity and references: Add the required quantity and, when available, a Gemini part number or another manufacturer's part number.

How to configure a gas spring

Build the specification from its connection points inward.

Choose both end connections
Start with the way the spring connects to the application. Select the left and right end types and their relevant dimensions.
Define the spring
Choose units and material, then enter the rod and tube size, stroke, extended lengths and required force.
Add options and references
Record the operating options, accessories, quantity and any known Gemini or competitor part number for review.
Send the specification to Gemini
Complete the configurator workflow so Gemini can review compatibility, availability and application requirements with you.

Match the spring to its environment

The same dimensions can require different materials and operating options.

A spring specification includes more than length and force. Temperature, moisture, contamination, extension speed, damping and protection around the rod can all affect the appropriate construction.

Use the configurator to record those requirements, then let Gemini review the complete application. Explore our gas compression springs, 316 stainless steel gas springs and connecting parts before you begin.

Configure a gas spring

Configurator or calculator?

Start with the unknown you need to solve.

Tool	Use it when	What you provide	What you get
Gas spring configurator	You know the required spring size, force and options.	Dimensions, material, fittings, accessories and references.	An organized specification for Gemini to review.
Gas spring calculator	You need to size a spring for a hinged door or flap.	Load, geometry, travel and desired manual effort.	A preliminary force and mounting result.