Double Torsion Spring Manufacturing Process: From Material Selection to Torque Testing | Professional CNC Spring Factory Technology Sharing
Video Introduction
Double torsion springs are core components in precision machinery, providing stable rotational torque. This video fully presents the entire production process, from raw material selection, CNC universal spring forming, stress relief through heat treatment, to final torque testing.
Whether in automotive door mechanisms or precision switches in electronic appliances, high-quality double torsion springs effectively improve product lifespan and stability.
Highlights of the Double Torsion Spring Manufacturing Process
1. High-Specification Material Selection
Using SUS302, SUS304, and SUS316 stainless steel, as well as SWP-B piano wire and oil-quenched and tempered steel wire (SWOSC-B), ensuring high fatigue life and excellent corrosion resistance.
2. CNC Universal Spring Former
Through high-precision wire feeding and winding control, two symmetrical torque coils are simultaneously formed, precisely bending the double-leg structure to ensure a high degree of consistency in torque and angle for each spring.
3. Critical Heat Treatment
Precise temperature control within the 250°C to 420°C range eliminates processing stress and stabilizes the elastic modulus.
4. Diverse Surface Treatments
Offers electroplating (zinc), nickel plating, chrome plating, electroless nickel plating, electropolishing, and passivation to meet requirements for rust prevention, appearance, and durability in various environments.
5. Rigorous Torque Testing
Full batch sampling inspection of torsion angle and torque ensures compliance with precision mechanism design standards.
Wide Range of Applications
- Automotive Industry: Car doors, seat adjustment mechanisms
- Electronics Industry: Microswitches, connectors
- Home Appliances: Washing machine doors, oven doors
- Machinery and Equipment: Industrial clamps, automation equipment
About Us
We are a professional spring manufacturer, providing various customized torsion springs and double torsion spring solutions. Please contact us if you have any precision spring needs or design consultations.