Variable Force Springs

A variable force spring is a flat steel strip that pulls as it unwinds – and this pulling force increases the farther the variable spring is drawn out. In display and feeding systems, the spring connects to a sliding pusher plate: as shoppers remove items, the spring pulls the strip inward, and the pusher plate moves forward, keeping products nearly front-faced. The longer the stroke becomes, the stronger the spring pulls, compensating for reduced weight and maintaining smooth, continuous movement without jerks or gaps. We offer several configurations to support different presentation needs — dense tightly wound coils with curved crimped tabs for heavier items, looser coils with T-tab ends for lightweight products, and designs with an extended arm and round mounting hole for fixed installations.