Torsion vs. Compression Springs: Which is Right for Your Application?

Springs are everywhere, but not all springs are created equal. Two of the most common types—torsion and compression springs—serve very different purposes. Here’s how to choose the right one for your application.

What Are Torsion Springs?

Torsion springs are designed to rotate around an axis, applying torque or rotational force. They’re commonly used in:

  • Clothespins

  • Garage doors

  • Hinges

Key Characteristics:

  • Store and release rotational energy.

  • Typically mounted on a shaft or rod.

  • Ends are often shaped into legs for attachment.

What Are Compression Springs?

Compression springs are designed to resist compressive forces, returning to their original length when the load is removed. They’re found in:

  • Automotive suspensions

  • Industrial valves

  • Mattresses

Key Characteristics:

  • Store and release linear energy.

  • Open-coil design allows for compression.

  • Can be cylindrical, conical, or barrel-shaped.

How to Choose the Right Spring

  1. Understand the Force Direction

    • Use torsion springs for rotational applications.

    • Use compression springs for linear applications.

  2. Consider Space Constraints

    • Torsion springs require space to rotate.

    • Compression springs need room to compress without buckling.

  3. Evaluate Load Requirements

    • Torsion springs handle torque.

    • Compression springs handle axial loads.

  4. Think About Environmental Factors

    • Both types can be made from materials like stainless steel or phosphor bronze, but the choice depends on exposure to heat, moisture, or chemicals.

Still Unsure? Let Us Help

At Daichi Springs, we specialize in designing custom springs for unique applications. Whether you need a torsion spring for a precision hinge or a compression spring for heavy machinery, our team can guide you to the perfect solution.

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