Nitrogen gas springs for moulds
Installation accessories for nitrogen gas springs
Plate-connected type for nitrogen gas springs

Summary of Nitrogen gas spring for moulds

Nitrogen gas spring for mould (short for Nitrogen spring or Nitrogen cylinder)is a new type of spring component by using high pressure Nitrogen as its medium. It features small size, great elastic force, long stroke, stable performance, precision manufacturing, long service life (1, 000, 000 times), gently curve diagram for elastic force, no need pretightening, ect. It covers the shortage that other conventional spring components have, like metal spring, rubber and gas cushion. And Nitrogen gas spring has more functions than conventional types. That is it can achieve much more actions which conventional types can not make it. Using Nitrogen gas spring component can simplify moulds design, manufacturing, installation as well as its adjustment. What is more, Using that type of spring can extend mould 's service life and ensure stable quality Nitrogen gas spring not only can be used as separate component to be installed into moulds, but also to be designed to Nitrogen gas spring system, then act as part of mould to accomplish stable function of elastic force and retardation action. It is new generation type of ideal elastic component with flexible functions.

Basic definitions & technical parameter for nitrogen gas spring
1, nominal spring force F: Represent spring force F when the Nitrogen spring is uner the condition of temperature 20 degree, inflation pressure 15 Mpa. If there is no special requirement from customer, initial spring force will be nominal spring force. It will be remain the same with the items of one series.
2, stroke S: Represents springs working stroke, which can be fully made use of, but in order to void overloading because of travel esceeding, when it comes to moulds changing or adjustment. Therefore about >5mm or 10% S spare stroke will be recommended in spring design.
3, total length L: Represents manufacturing length of Nitrogen spring, that is the max length of spring when it is under natural state. It should meet: Total length ≥ base length J + 2* stroke S
4, service life: Under reasonable way of installation and using, the service life of nitrogen spring (S ≤ 50mm)should be more then 1, 000, 000 times. If S ≥ 50mm, its service life will be calculated according to below formula: Service life = 100000 meter / (actual stroke *2)