Help Centre

We’re here to answer all your questions around the correct application of gas struts and dampers. From key terminology, an introduction to gas struts and our series of how to videos, to selecting the right product, sizing, customisation and our range of FAQs, our Help Centre contains all of the information you’re looking for. You can also ask an expert through our adjacent contact form, with our designers and engineers on-hand to answer questions specific to your product or application.

Click here to download and complete our Gas Spring Sizing Form or here to download our Gas Spring Application Enquiry Form and submit either when completing our Ask The Expert form to help our designers and engineers with your query.

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    • Getting Started
      Introduction to a Gas Spring Gas Strut Mounting Positions Construction of a Gas Spring Gas Spring Terminology Forces and Spring Rates Gas Spring Standards
    • Selecting The Right Product
      The Two Key Questions Standard Gas Spring Sizes Which Product is right for me? Technical Data
    • Customisation
      Tailoring your Gas Spring
    • Want to Know More?
      Dos and Don’ts Mounting Position Terminology Mounting Orientation Mounting – Other Considerations Mounting – Practical Considerations Whitepaper – Understanding the Basics Whitepaper – Gas Spring Overview Whitepaper – Gas Spring Overview (Part 2) Whitepaper – Gas Spring Mounting
    • Show Me How
      How to fit and de-gas a Vari-Lift valved gas spring (gas strut) Stop & Stay Multi-Positional Gas Springs Cam-Stay – Multi-Positional Telescopic Stay
    • Troubleshooting
      Frequently Asked Questions
    • Datasheets
      General Range Overview Camloc Motion Control ISO 9001 Certificate Gas Spring Application Enquiry Form Gas Spring Sizing Form Vari-Lift Instruction Safety Leaflet Gas Spring Disposal Advice Safety Data Sheet – Gas Springs Safety Data Sheet – Blocklifts Safety Data Sheet – Dampers

    Construction of a Gas Spring

    A gas strut consists of the following components; 


    Camloc Product Annotations 300x90 - Construction of a Gas Spring

    Rods are either precision ground, polished carbon or stainless steel. The surface of the rod is treated to improve wear and increase corrosion resistance. In general, the rod will always be longer than the stroke of the spring and shorter than the length of the tube. 

    Camloc’s carbon steel rods use a nitride surface treatment and stainless steel rods use a chrome-plated treatment. 


    Camloc Product Annotations2 300x90 - Construction of a Gas Spring

    The tubes used are either powder coated carbon or stainless steel high integrity seamless welded tube suitable for high pressures. 

    The internal surface finish and tensile strength of the tube are critical to gas spring longevity and burst pressure performance. 

    Guide and Seal Package

    Camloc Product Annotations3 300x90 - Construction of a Gas Spring

    Manufactured from plastic composite, the guide and seal package provide a bearing surface for the rod, prevents the escape of gas and ingress of contamination. 

    Piston Assembly

    Camloc Product Annotations4 300x90 - Construction of a Gas Spring

    Manufactured from zinc, aluminium or plastic the piston assembly controls the rate at which the gas spring extends and compresses, it also serves to prevent the rod from being expelled from the spring. For safety reasons the integrity of the piston to rod attachment is critical. 

    End Plug

    Camloc Product Annotations5 300x90 - Construction of a Gas Spring

    This is used to seal the tube end of the gas spring and is where the tube end fitting attaches. In the case of Camloc Gas Springs the end plug is also where the Vari-Lift valve is incorporated. The Vari-Lift valve allows the release of the Nitrogen gas from the spring, which reduces the gas spring force. This feature is useful in allowing the gas springs to be fine-tuned to the application. 

    Nitrogen Gas Charge

    Camloc Product Annotations Nitrogen Gas 300x90 - Construction of a Gas Spring

    Nitrogen is used as it is inert and non-flammable and therefore does not react with any of the internal components.


    Provides lubrication for the seal and internal components, it also serves to provide the damping effect at the end of the gas springs stroke. 

    Contact Us Today

    From our base in Leicester, UK, we design and manufacture quality-engineered solutions in motion control.

    At Camloc, we are more than just a manufacturer of Gas Springs and Dampers.