Coiled Flat Ribbon Spring with Spiral Torsion Spring and Visible Inner Hub/Eye

Yimin's Swiss machining lines in Huizhou produce spiral torsion springs from bearing steel and spring steel, with coil geometry, inner hub eye dimension, and free-state torque controlled to your print specification. Swiss machining precision eliminates the dimensional scatter of hand-wound springs, ensuring consistent torque output and fatigue performance from the first part to the last in each production order. IATF 16949 and ISO 9001 certifications at Yimin's Guangdong facility (approximately 35,000 m²) govern machining qualification and dimensional traceability for 160 staff producing spring components for communication and motorsport applications. Passivation and polishing are available as secondary processes to improve corrosion resistance and contact surface finish. Attach your print specifying coil geometry, inner eye dimensions, and material specification. For a direct detailed pricing from our huizhou team.