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
RS Stock No. 339-9066
Mfr. Part No.SXY8A6A600004
MYR694.91
1 Pair
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 564mm 250mm 18mm 8mm 650N 100N
RS Stock No. 253-346
Mfr. Part No.SXV4101000010
MYR2,585.41
1 Pair
Pair(s)
- Stainless Steel Stainless Steel Ball & Socket Joint 880mm 400mm 28mm 14mm 2500N 200N
RS Stock No. 339-9050
Mfr. Part No.SXY8A6A600002
MYR669.50
1 Pair
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 464mm 200mm 18mm 8mm 650N 100N
RS Stock No. 339-9038
Mfr. Part No.SXY8A6A600003
MYR625.27
1 Pair
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 364mm 150mm 18mm 8mm 650N 100N
New
RS Stock No. 194-6518
Mfr. Part No.GS-B3-9048
MYR452.78
Each
units
Any Position Lock Steel - - 165mm 50mm 23mm 8mm 600N 100N
New
RS Stock No. 194-6521
Mfr. Part No.GS-B3-9050
MYR498.47
Each
units
Any Position Lock Steel - - 365mm 150mm 23mm 8mm 600N 100N
RS Stock No. 346-9547
Mfr. Part No.SXV6050500004
MYR702.92
1 Pair
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 440mm 200mm 15mm 6mm 400N 50N
New
RS Stock No. 194-6523
Mfr. Part No.GS-B3-9052
MYR556.70
Each
units
Any Position Lock Steel - - 265mm 100mm 28mm 10mm 1000N 150N
RS Stock No. 339-9022
Mfr. Part No.SXY8A6A600001
MYR592.92
1 Pair
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 264mm 100mm 18mm 8mm 650N 100N
RS Stock No. 686-963
Mfr. Part No.SWY8060600055
MYR363.00
1 Pair
Pair(s)
- Steel Nylon, Steel Ball & Socket Joint, End Joint 264mm 100mm 18mm 8mm 650N 100N
RS Stock No. 253-324
Mfr. Part No.SXV4G6200275G6R
MYR2,109.15
1 Pair
Pair(s)
- Stainless Steel Stainless Steel Ball & Socket Joint 480mm 200mm 28mm 14mm 2500N 200N
RS Stock No. 346-9569
Mfr. Part No.SXY1A8A800002
MYR1,442.12
1 Pair
Pair(s)
- Stainless Steel Stainless Steel Ball & Socket Joint 445mm 200mm 23mm 10mm 1200N 150N
RS Stock No. 253-330
Mfr. Part No.SXV4101000009
MYR2,313.26
1 Pair
Pair(s)
- Stainless Steel Stainless Steel Ball & Socket Joint 680mm 300mm 28mm 14mm 2500N 200N
New
RS Stock No. 194-6527
Mfr. Part No.GS-B3-9056
MYR1,288.37
Each
units
Any Position Lock Stainless Steel - - 365mm 150mm 28mm 10mm 1000N 150N
New
RS Stock No. 194-6525
Mfr. Part No.GS-B3-9054
MYR886.88
Each
units
Any Position Lock Stainless Steel - - 165mm 50mm 28mm 10mm 1000N 150N
RS Stock No. 346-9503
Mfr. Part No.SXV6050500001
MYR626.25
1 Pair
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 160mm 60mm 15mm 6mm 400N 50N
RS Stock No. 253-352
Mfr. Part No.SXV4101000011
MYR2,812.27
1 Pair
Pair(s)
- Stainless Steel Stainless Steel Ball & Socket Joint 1080mm 500mm 28mm 14mm 2500N 200N
RS Stock No. 346-9553
Mfr. Part No.SXY1A8A800001
MYR1,052.31
1 Pair
Pair(s)
- Stainless Steel Stainless Steel Ball & Socket Joint 245mm 100mm 23mm 10mm 1200N 150N
New
RS Stock No. 194-6520
Mfr. Part No.GS-B3-9049
MYR475.13
Each
units
Any Position Lock Steel - - 265mm 100mm 23mm 8mm 600N 100N
RS Stock No. 346-9531
Mfr. Part No.SXV6050500002
MYR639.35
1 Pair
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 340mm 150mm 15mm 6mm 400N 50N