Our Products

Precision springs and wire forms for every industry – explore our full range.

Railway suspension coil springs manufactured by Chenji

Railway Suspension Springs

Hot-wound coil springs for locomotives, bogies and rail vehicles.

Bogie bolster spring for railway carriages

Primary Suspension Springs

Primary suspension coils that absorb track shocks with high fatigue life.

Heavy duty train suspension coil spring

Secondary Suspension Springs

Secondary suspension springs engineered for ride comfort and stability.

Garage Door Springs

Torsion and extension springs for residential and commercial garage doors.

Compression Springs

Custom compression springs in round, square and hot-wound configurations.

Extension Springs

Precision extension springs with a wide range of hooks, loops and ends.

Torsion Springs

Torsion springs that store and release rotational energy on demand.

Wire Forms

Custom wire forms and bent-wire components for any application.

Disc Springs

Disc springs (Belleville washers) for high loads in compact spaces.

Roller Shutter Door Springs

Torsion springs for roller shutter doors and industrial shutters, built for thousands of open/close cycles.

Automotive Suspension Springs

Suspension coil springs and shock absorber springs for passenger cars and commercial vehicles.

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