Variable Force Spring
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.
Teng Yao offers several configurations to support different presentation needs. Dense, tightly wound coils with curved crimped tabs provide stronger pull for heavier items such as canned drinks, glass cosmetics, or boxed goods. Looser coils with T-tab ends give gentler tension for lightweight products like snacks, pouches, blister packs, and stationery. For fixed installations, such as chilled cases, angled shelves, or track-based POP displays, designs with an extended arm and a round mounting hole provide stable screw-mounted positioning.
Variable Force Spring VFS-001
Materials：IncludingSUS301 and precision steel strips, with customization .
Thickness：0.04 - 1.0mm
Width：2.5 - 90mm
Features：tension increases or decreases with the stroke.
Applications：Applicable in scenarios where spring thrust and tension need to change along the stroke, such as in convenience store display racks or product presentation stands.
Variable Force Spring VFS-002
Materials：IncludingSUS301 and precision steel strips, with customization .
Thickness：0.04 - 1.0mm
Width：2.5 - 90mm
Features：tension increases or decreases with the stroke.
Applications：Applicable in scenarios where spring thrust and tension need to change along the stroke, such as in convenience store display racks or product presentation stands.
Variable Force Spring VFS-003
Materials：IncludingSUS301 and precision steel strips, with customization .
Thickness：0.04 - 1.0mm
Width：2.5 - 90mm
Features：tension increases or decreases with the stroke.
Applications：Applicable in scenarios where spring thrust and tension need to change along the stroke, such as in convenience store display racks or product presentation stands.
Variable Force Spring VFS-004
Materials：IncludingSUS301 and precision steel strips, with customization .
Thickness：0.04 - 1.0mm
Width：2.5 - 90mm
Features：tension increases or decreases with the stroke.
Applications：Applicable in scenarios where spring thrust and tension need to change along the stroke, such as in convenience store display racks or product presentation stands.