Gas Struts Explained: What They Are and How They Work
Gas struts, also known as gas springs, are essential mechanical components used across automotive, furniture, medical, and industrial applications. They provide controlled movement and load support using compressed gas sealed inside a cylinder.
Thanks to their reliability and smooth operation, gas struts improve safety, usability, and long-term performance.
How Do Gas Struts Work?
Gas struts operate using pressurised nitrogen gas contained within a sealed cylinder.
When force is applied, the gas compresses and pushes against a piston rod, creating smooth and controlled motion. This mechanism allows gas struts to lift, hold, or position objects safely and effortlessly.
Common Uses of Gas Struts
- Automotive applications – Bonnet struts, tailgate struts, and boot lid support
- Furniture – Adjustable chairs, cabinets, ottoman beds, and storage units
- Industrial equipment – Machine covers, access panels, and service hatches
- Medical equipment – Hospital beds, examination tables, and adjustable supports
Advantages of Gas Struts
- Smooth and silent operation without sudden movement
- High durability and resistance to wear
- Improved safety by preventing accidental closures
- Low maintenance requirements over time
Choosing the Right Gas Strut
When selecting a gas strut, it is important to consider the following factors:
- Load capacity – Ensure it supports the required weight
- Length and stroke – Match the opening and closing range
- Pressure and force rating – Choose the correct Newton (N) value
- Material – Corrosion-resistant finishes for harsh environments
Selecting the correct specification ensures smooth operation, long service life, and safe performance.
Conclusion
Gas struts are a vital component in many industries, offering reliable lifting, support, and motion control. Whether used in vehicles, furniture, or industrial equipment, choosing the correct gas strut ensures efficiency, safety, and long-term reliability.
Frequently Asked Questions
What are gas struts used for?
Gas struts are used to lift, support, and control the movement of lids, panels, furniture, and mechanical components.
How do gas struts work?
Gas struts use pressurised nitrogen gas inside a sealed cylinder to create controlled lifting and holding force.
Are gas struts safe to use?
Yes, when correctly selected and installed, gas struts provide safe, controlled movement and prevent sudden closures.
How do I choose the correct gas strut?
You should consider load weight, length, stroke, force rating, and material to match your application.
