Gas Springs

Verified by Mel Sykes, Industrial Supply Chain Specialist - April 2026

Specification	Details
Types	Standard (push), pull, locking, stainless steel
Forces	50N to 10,000N
Stroke	20mm to 500mm
Gas	Nitrogen filled
Brands	Stabilus, Suspa, Bansbach

What are Gas Springs?

Gas Springs are mechanical devices designed to provide smooth and controlled movement for doors, lids, seats, or other movable parts in vehicles, furniture, and machinery. They consist of a sealed cylinder filled with compressed nitrogen and a piston rod that moves within the cylinder.

Types and Variants

Gas Springs come in various types including standard push models, pull variants, locking versions, and stainless steel options. Push springs are used to assist with opening doors or lids, while pull springs help close them. Locking gas springs feature an internal mechanism that locks the piston rod at a predetermined position. Stainless steel models offer corrosion resistance for outdoor applications.

• Standard (Push) Springs: Force range from 50N to 10,000N with stroke lengths of 20mm to 500mm.
• Pull Springs: Provide similar force ranges but are designed to pull rather than push. Commonly used in furniture and automotive applications.
• Locking Springs: Incorporate a locking mechanism that allows the spring to be locked at various points along its travel, suitable for heavy-duty industrial use.
• Stainless Steel Models: Made from corrosion-resistant materials like A2-70 stainless steel, ideal for marine or outdoor environments.

Materials and Specifications

Gas Springs are typically made from high-strength carbon steels such as EN8 and EN19, which conform to ISO 6344 standards. Stainless steel models adhere to DIN EN 10088-2 standards for corrosion resistance. The cylinders are coated with materials like zinc or chromium to enhance durability.

Example Specifications:

• Material: EN8 carbon steel


• Coating: Zinc (Zn)


• Force Rating: 300N


• Stroke Length: 150mm


• Temperature Range: -20°C to +70°C

Selection Criteria

Choosing the right Gas Spring involves several factors such as force requirements, stroke length, and environmental conditions. Engineers must consider the load capacity, travel distance, and whether the application requires a locking mechanism or corrosion resistance.

1. Force Requirements: Determine the minimum and maximum forces needed for opening and closing movements.
2. Stroke Length: Measure the full range of motion required for the door, lid, or other movable part.
3. Environmental Conditions: Consider temperature ranges, humidity levels, and exposure to corrosive agents like salt water.

UK Suppliers

MLC lists verified Gas Spring suppliers from Companies House, including reputable brands like Stabilus, Suspa, and Bansbach. These companies offer a range of products tailored to specific application needs and adhere to industry standards such as ISO 6344 and DIN EN 10088-2.

Example Suppliers:

• Stabilus UK Ltd: Offers a wide range of gas springs for automotive and industrial applications.


• Suspa GmbH & Co. KG (UK Branch): Specialises in high-performance locking gas springs.


• Bansbach Products Limited: Provides corrosion-resistant stainless steel gas struts.

Common Applications

Gas Springs are widely used across various industries, including automotive, furniture manufacturing, and heavy machinery production. They enhance user comfort by providing smooth motion control and reduce wear on mechanical components.

Examples of Use:

• Automotive Industry: For hoods, boot lids, and seats.


• Furniture Manufacturing: In office chairs for seat height adjustment and reclining mechanisms.


• Industrial Machinery: To assist with opening doors on machinery enclosures or lifting heavy panels.

Gas Springs have become a critical component in modern engineering due to their reliability and versatility. Proper selection ensures optimal performance and longevity, reducing maintenance costs and improving overall system efficiency.