Complete Production Process Of Scroll Springs For Seat Recliners

Many global seating brand buyers wonder how high-performance scroll springs are produced. Langfang Jinrui Auto Parts, founded in April 2026, owns a full automatic production line specialized in scroll and coil springs for all types of seating equipment. We divide our manufacturing workflow into 4 strict standardized steps.

1. Raw Material Screening We only purchase certified 65Mn oil-quenched steel strips. Our QC team checks hardness, thickness and ductility of each steel roll to eliminate unqualified materials at the source. No cold-rolled steel enters our production workshop.
2. Precision Winding & Shaping Automatic winding machines form springs into standard scroll and coil sizes. Our technicians adjust torque, inner diameter and number of coils according to clients’ custom drawings for car, high-speed rail or executive office chairs.
3. Professional Heat Treatment & Polishing The formed springs go through secondary oil quenching and tempering to lock elasticity. Surface polishing removes sharp burrs, preventing scratch damage during seat assembly.
4. Batch Fatigue Testing & Warehouse Storage Every production batch undergoes fatigue cycle testing to verify elasticity stability. Qualified products are wrapped in waterproof red/blue protective film and stored in our dust-free standardized warehouse to avoid rust during shipment.

Our one-stop production system supports OEM & ODM customization for global seating manufacturers. Whether you need mass bulk orders or small trial samples, our factory guarantees stable delivery time and consistent product quality. Schedule a virtual factory tour with us to watch the whole spring production line online.