IGS was formed in 1982 to provide specialist gas springs to a UK industrial market which was poorly served in terms of delivery, variety and performance by the manufacturers of gas springs for the automotive industry. Today, gas springs supplied by IGS range from the world’s first gas springs to have successfully withstood the rigours of being launched and operated in space, to a range of standard gas springs which compete on equal terms with other major suppliers.

Standard and Combination Springs
Standard springs are a mixture of springs constructed from the same components as stock springs, with the springs varying in stroke and shoulder lengths. Combination springs vary rod and tube diameters. The primary function of mixing rod and tube diameters is for low “K” factor springs i.e. where there is very little difference between the force of the spring when fully extended and fully compressed. These springs are most useful where a straight lift is required. As can be seen from the table a typical “K” factor is 1.1 i.e. if the spring is at 100 Newtons just short of full extension it will be 110 Newtons just short of full compression. Those springs highlighted are the stock sizes of rod and tube.

Stainless Steel Springs
For long gas spring life where the gas spring is used in particularly corrosive environments, it is essential that the rod does not corrode. Any corrosion on the rod surface will be drawn through and damage the main seal resulting in premature spring failure. stainless steel gas springs are available in size 6, 8, 10 and 14. Large quantities of stainless steel tube and rod together with all the necessary internal components are held in stock. These springs can be made to the sizes indicated in the charts shown on pages 8 and 9. Despatch for small quantities of standard stainless steel springs is normally one week from receipt of order.