Torsion Springs

Flat wire, double torsion, internal/external dual-helix, and custom-formed leg configurations — Precision torque calibration and custom engineering.

Torsion Spring Overview

Torsion springs store and release rotational energy (torque) through angular deflection. Commonly applied in hinges, valve actuators, industrial switches, and automotive mechanisms. TOSTA manufactures high-precision, extended-fatigue-life torsion springs widely deployed in automotive, mechanical engineering, electronics, and medical device assemblies.

Product Types

Flat Wire Torsion Springs

Wound from rectangular or flat wire, delivering high torsional rigidity and maximum torque transmission within compact axial envelopes.

Double Torsion Springs

Dual-helix configuration providing doubled torque capacity and balanced, symmetrical load distribution for counterbalance mechanisms.

Internal Double Torsion Springs

Internal helix winding design engineered for ultra-compact radial installations requiring high torque density.

External Double Torsion Springs

External coil configuration delivering superior lateral stability and smooth deflection over extended-travel rotations.

Specialty-Leg Torsion Springs

Custom-formed leg bends (radial, axial, tangential, or offset) tailored to complex mounting brackets and space restrictions.

Custom Engineered Torsion Springs

Fabricated strictly to drawing specifications with non-standard wire sizes, precise leg angles, and high-performance alloys.

Specification Parameters

ParameterRange
Wire Diameter0.08mm - 10.0mm
Outer / Inner Diameter1.0mm - 200mm
Body Length3mm - 500mm
Total Coils1 - 50 Coils
MaterialMusic Wire, Stainless Steel, Carbon Steel, Alloy Steel, etc.

Need Custom Torsion Springs?

Provide your required torque, dimensional envelope, and rotational deflection angle. The TOSTA engineering team will provide optimal sizing and prompt sample fabrication.

Contact Engineering Support Mr. Wang +86 130-1246-1618