Gas Struts

A gas strut, also known as a gas spring is a mechanical component that uses compressed nitrogen gas to force a precision rod attached to a piston back and forth within an enclosed metal cylinder. Gas struts are primarily designed as a direct support mechanism for safely lifting, positioning, lowering and counterbalancing different weights. For more information on how they work, you can consult our Gas Springs Guide.

How does a Gas Strut work?

A gas strut construction is very simple, it comprises of a precision rod attached to a piston and a central tubular body containing compressed nitrogen gas and lubricating oil. When force is applied to the protruding portion of the rod it presses onto the piston head a bit like a plunger on a syringe, compressing the nitrogen gas. This creates an internal pressure that exceeds the pressure outside of the cylinder closing the gas strut. When the force is removed from the external rod the gas is de-compressed and the pressure pushes the piston back out again, opening the gas strut.

Types of Gas Strut

Gas struts or gas springs are available as stop and stay or variable pressure with a steel or stainless steel body. Depending on application stroke length, extended length, minimum and maximum force ranges and end fittings must be taken into account.

Gas Strut sizes

Gas struts are usually referred to by their size, the most common are:

  • 6 mm rod diameter – 15 mm tube diameter. Range 50 - 400 N (11-90 lbs)
  • 8 mm rod diameter – 18 mm tube diameter. Range 100 - 650 N (22-146 lbs)
  • 10 mm rod diameter - 23 mm tube diameter. Range 150 – 1200 N (34-269 lbs)
  • 14 mm rod diameter – 28 mm tube diameter. Range 200 – 2500 N (45-562 lbs)

Gas struts are utilised in a wide range of applications. The most common use is for the gas spring is lifting and lowering of a car boot. Other areas include:

  • Boat access hatches
  • Cargo area on aeroplanes
  • boats
  • coaches
  • Office furniture and chairs
  • Skylights
  • Office chairs and furniture
  • Machine guards and Conveyor gates.

Larger gas struts are also used in industrial manufacturing such as tool pressing. The gas struts used in these areas have a force range capable of exerting up to forty tonnes.


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Description Price Locking & Holding Cylinder Material End Connector Material End Connector Extended Length Stroke Length Rod Diameter Piston Diameter Maximum Force Minimum Force
New
RS Stock No. 194-6520
Mfr. Part No.GS-B3-9049
TWD3,203.00
Each
units
Any Position Lock Steel - - 265mm 100mm 23mm 8mm 600N 100N
RS Stock No. 182-4649
Mfr. Part No.SSV6050500003
TWD3,366.00
1 Pair
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 350mm 150mm 15mm 6mm 400N 50N
RS Stock No. 234-483
Mfr. Part No.SWV4101000021
TWD4,918.00
1 Pair
Pair(s)
- Steel Steel Ball & Socket Joint, End Joint 1080mm 500mm 28mm 14mm 2500N 200N
RS Stock No. 339-9022
Mfr. Part No.SXY8A6A600001
TWD3,997.00
1 Pair
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 264mm 100mm 18mm 8mm 650N 100N
New
RS Stock No. 194-6525
Mfr. Part No.GS-B3-9054
TWD5,979.00
Each
units
Any Position Lock Stainless Steel - - 165mm 50mm 28mm 10mm 1000N 150N
RS Stock No. 182-4677
Mfr. Part No.SSY8060600004
TWD3,374.00
1 Pair
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 364mm 150mm 18mm 8mm 650N 100N
RS Stock No. 182-4683
Mfr. Part No.SSY8060600005
TWD3,492.00
1 Pair
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 464mm 200mm 18mm 8mm 650N 100N
RS Stock No. 202-2484
Mfr. Part No.SWV8ECV800001
TWD3,166.00
1 Pair
Pair(s)
Full Extension Lock Only Steel Nylon, Steel Ball & Socket Joint 264mm 100mm 18mm 8mm 650N 100N
RS Stock No. 346-9519
Mfr. Part No.SXV6050500003
TWD3,875.00
1 Pair
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 240mm 100mm 15mm 6mm 400N 50N
RS Stock No. 686-985
Mfr. Part No.SWY8060600057
TWD2,244.00
1 Pair
Pair(s)
- Steel Nylon, Steel Ball & Socket Joint, End Joint 464mm 200mm 18mm 8mm 650N 100N
New
RS Stock No. 194-6526
Mfr. Part No.GS-B3-9055
TWD7,332.00
Each
units
Any Position Lock Stainless Steel - - 265mm 100mm 28mm 10mm 1000N 150N
RS Stock No. 346-9581
Mfr. Part No.SXY1A8A800004
TWD10,279.00
1 Pair
Pair(s)
- Stainless Steel Stainless Steel Ball & Socket Joint 645mm 300mm 23mm 10mm 1200N 150N
RS Stock No. 234-461
Mfr. Part No.SWV1080800026
TWD2,612.00
1 Pair
Pair(s)
- Steel Steel, Zinc Ball & Socket Joint, End Joint 545mm 250mm 23mm 10mm 1200N 150N
RS Stock No. 182-4627
Mfr. Part No.SSV6050500001
TWD3,262.00
1 Pair
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 170mm 60mm 15mm 6mm 400N 50N
RS Stock No. 202-2513
Mfr. Part No.SWV8ECV800004
TWD3,382.00
1 Pair
Pair(s)
Full Extension Lock Only Steel Nylon, Steel Ball & Socket Joint 564mm 250mm 18mm 8mm 650N 100N
RS Stock No. 182-4661
Mfr. Part No.SSY8060600003
TWD3,326.00
1 Pair
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 264mm 100mm 18mm 8mm 650N 100N
RS Stock No. 202-2490
Mfr. Part No.SWV8ECV800002
TWD3,212.00
1 Pair
Pair(s)
Full Extension Lock Only Steel Nylon, Steel Ball & Socket Joint 364mm 150mm 18mm 8mm 650N 100N
RS Stock No. 687-039
Mfr. Part No.SWV4101000019
TWD4,536.00
1 Pair
Pair(s)
- Steel Steel Ball & Socket Joint, End Joint 680mm 300mm 28mm 14mm 2500N 200N
RS Stock No. 182-4699
Mfr. Part No.SSY8060600006
TWD3,533.00
1 Pair
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 564mm 250mm 18mm 8mm 650N 100N
RS Stock No. 202-2507
Mfr. Part No.SWV8ECV800003
TWD3,298.00
1 Pair
Pair(s)
Full Extension Lock Only Steel Nylon, Steel Ball & Socket Joint 464mm 200mm 18mm 8mm 650N 100N