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Torsion Springs Size Guide & Specifications

DYN Fasteners provides precision-engineered torsion springs for a wide range of applications, including light-duty mechanisms, automotive, industrial, and heavy equipment systems. These springs are designed for accurate torque performance, durability, and longevity.

Standard Torsion Springs

Spring Type Wire Diameter (mm) Outer Diameter (mm) Inner Diameter (mm) Free Length (mm) Total Coils Leg Length (mm) Torque Capacity (Nm) Solid Length (mm)
Light-Duty Torsion Springs 0.5 – 2 5 – 30 3 – 25 10 – 50 3 – 5 5 – 20 0.1 – 1.0 4 – 15
Medium-Duty Torsion Springs 2 – 5 30 – 70 20 – 55 50 – 150 5 – 8 10 – 40 1.0 – 5.0 15 – 45
Heavy-Duty Torsion Springs 5 – 10 70 – 150 50 – 130 150 – 400 8 – 12 30 – 80 5.0 – 25.0 45 – 100
Automotive Torsion Springs 2 – 8 50 – 100 40 – 85 100 – 300 5 – 10 20 – 60 2.0 – 15.0 30 – 80
Industrial Torsion Springs 4 – 12 80 – 200 60 – 160 200 – 500 10 – 15 50 – 120 10.0 – 50.0 80 – 150
Heavy Equipment Torsion Springs 8 – 16 150 – 300 100 – 250 500 – 1000 15 – 20 70 – 150 20.0 – 100.0 150 – 250
Custom Torsion Springs 0.5 – 16 5 – 300 3 – 250 Custom Sizes Custom Coils Custom Leg Length Custom Torque Capacity Custom Solid Length

Custom sizes are available on request, ensuring that we can meet your specific project requirements.

Key Features

  • High-quality torsion springs for light-duty, medium-duty, heavy-duty, automotive, and industrial applications
  • Precise torque performance for reliable mechanical operation
  • Durable materials for long service life under repeated cycles
  • Available in a wide range of diameters, lengths, and coil counts
  • Custom designs and specifications can be accommodated to meet project needs

DYN Fasteners ensures each torsion spring meets international standards for performance, reliability, and safety.