All of the spring components are made of A4150H and carbon steel. Per customer’s request, a two coat epoxy paint was applied to the springs. The Type-A variable spring assemblies measure 22″ x 79″ with an installed load of 45,000 lb., operating load of 56,000 lb., and a downward travel of 5″. The Type-C assemblies measure 22″ x 89″ with an installation load of 38,000 lb., operating load of 47,000 lb., and a downward travel of 5 1/2″. Each spring coil was tested to insure the wire diameter, coil height, and spring rates.
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