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庫存編號 686-979
製造零件編號SWY8060600056
HK$688.53
1 對 1 套
Pair(s)
- Steel Nylon, Steel Ball & Socket Joint, End Joint 364mm 150mm 18mm 8mm 650N 100N
RS庫存編號 182-4677
製造零件編號SSY8060600004
HK$642.67
1 對 1 套
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 364mm 150mm 18mm 8mm 650N 100N
RS庫存編號 182-4699
製造零件編號SSY8060600006
HK$620.14
1 對 1 套
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 564mm 250mm 18mm 8mm 650N 100N
RS庫存編號 687-017
製造零件編號SWV1080800029
HK$780.29
1 對 1 套
Pair(s)
- Steel Steel, Zinc Ball & Socket Joint, End Joint 645mm 300mm 23mm 10mm 1200N 150N
RS庫存編號 234-483
製造零件編號SWV4101000021
HK$969.78
1 對 1 套
Pair(s)
- Steel Steel Ball & Socket Joint, End Joint 1080mm 500mm 28mm 14mm 2500N 200N
RS庫存編號 182-4734
製造零件編號SSV1080800004
HK$1,017.62
1 對 1 套
Pair(s)
Any Position Lock Steel Steel, Zinc Ball & Socket Joint 660mm 300mm 23mm 10mm 1200N 150N
RS庫存編號 687-001
製造零件編號SWV1080800028
HK$509.60
1 對 1 套
Pair(s)
- Steel Steel, Zinc Ball & Socket Joint, End Joint 445mm 200mm 23mm 10mm 1200N 150N
RS庫存編號 686-957
製造零件編號SWV6050500036
HK$739.87
1 對 1 套
Pair(s)
- Steel Nylon, Steel Ball & Socket Joint, End Joint 340mm 150mm 15mm 6mm 400N 50N
RS庫存編號 339-9022
製造零件編號SXY8A6A600001
HK$1,363.83
1 對 1 套
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 264mm 100mm 18mm 8mm 650N 100N
RS庫存編號 234-455
製造零件編號SWV1080800027
HK$565.60
1 對 1 套
Pair(s)
- Steel Steel, Zinc Ball & Socket Joint, End Joint 245mm 100mm 23mm 10mm 1200N 150N
RS庫存編號 339-9066
製造零件編號SXY8A6A600004
HK$926.00
1 對 1 套
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 564mm 250mm 18mm 8mm 650N 100N
RS庫存編號 182-4683
製造零件編號SSY8060600005
HK$653.55
1 對 1 套
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 464mm 200mm 18mm 8mm 650N 100N
RS庫存編號 686-935
製造零件編號SWV6050500034
HK$689.54
1 對 1 套
Pair(s)
- Steel Nylon, Steel Ball & Socket Joint, End Joint 160mm 60mm 15mm 6mm 400N 50N
RS庫存編號 687-039
製造零件編號SWV4101000019
HK$848.77
1 對 1 套
Pair(s)
- Steel Steel Ball & Socket Joint, End Joint 680mm 300mm 28mm 14mm 2500N 200N
RS庫存編號 253-352
製造零件編號SXV4101000011
HK$4,509.36
1 對 1 套
Pair(s)
- Stainless Steel Stainless Steel Ball & Socket Joint 1080mm 500mm 28mm 14mm 2500N 200N
RS庫存編號 346-9531
製造零件編號SXV6050500002
HK$838.58
1 對 1 套
Pair(s)
- Stainless Steel Nylon, Stainless Steel Ball & Socket Joint 340mm 150mm 15mm 6mm 400N 50N
RS庫存編號 686-991
製造零件編號SWY8060600058
HK$780.64
1 對 1 套
Pair(s)
- Steel Nylon, Steel Ball & Socket Joint, End Joint 564mm 250mm 18mm 8mm 650N 100N
RS庫存編號 182-4649
製造零件編號SSV6050500003
HK$591.46
1 對 1 套
Pair(s)
Any Position Lock Steel Nylon, Steel Ball & Socket Joint 350mm 150mm 15mm 6mm 400N 50N
RS庫存編號 202-2490
製造零件編號SWV8ECV800002
HK$611.84
1 對 1 套
Pair(s)
Full Extension Lock Only Steel Nylon, Steel Ball & Socket Joint 364mm 150mm 18mm 8mm 650N 100N
RS庫存編號 686-941
製造零件編號SWV6050500035
HK$715.21
1 對 1 套
Pair(s)
- Steel Nylon, Steel Ball & Socket Joint, End Joint 240mm 100mm 15mm 6mm 400N 50N