Torsion springs are helical (coiled) mechanical springs that exert a rotational or twisting force. When one end of the spring is rotated around its axis while the other is held stationary, the spring generates torque, which resists the twisting motion. They are precision-engineered components used in a wide range of industries to control angular motion or store rotational energy.
⚙️ Working Principle
Unlike compression or extension springs, torsion springs work through angular deformation. The force is applied perpendicularly to the axis of the spring, causing it to twist. As the spring winds tighter, it stores mechanical energy that can be released to create rotational force (torque) in the opposite direction. This torque helps either rotate objects or return them to a resting position.
🛠️ Construction & Material Options
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Material: Typically manufactured from high-strength wire materials like:
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Stainless Steel (for corrosion resistance)
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Music Wire (for high-tensile strength)
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Phosphor Bronze or Beryllium Copper (for electrical conductivity)
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Coil Direction:
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Left-hand wound
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Right-hand wound
Direction depends on the intended rotation or application.
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Leg Styles: Legs can be customized based on application needs:
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Straight
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Hooked
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Offset
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Custom-formed
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Finishes:
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Zinc plating
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Powder coating
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Passivation (for stainless steel)
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Oil coating (for rust prevention)
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🧩 Design Customization
Torsion springs can be tailored in terms of:
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Wire diameter
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Coil diameter
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Number of coils
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Arm/leg length and angle
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Maximum torque rating
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Operating temperature range
This flexibility makes them suitable for custom engineering solutions.
🧪 Performance Advantages
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High Torque Capacity
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Compact Size for Tight Spaces
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Consistent Rotational Force
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Durability Under Repetitive Stress
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Excellent Load-Bearing Capabilities
🏭 Applications by Industry
| Industry | Application |
|---|---|
| Garage Door Systems | Counterbalancing heavy doors |
| Automotive | Steering columns, tailgates, trunk hinges |
| Aerospace | Aircraft control mechanisms |
| Electronics | CD/DVD trays, battery compartments |
| Medical Devices | Surgical tools, orthopedic instruments |
| Agriculture | Latch mechanisms, equipment handles |
| Furniture | Recliner chairs, adjustable tables |
📏 Example Specifications
| Parameter | Typical Range |
|---|---|
| Wire Diameter | 0.2 mm to 10 mm |
| Coil Outer Diameter | 3 mm to 100 mm |
| Torque | From 0.05 Nm to 200+ Nm |
| Max Rotation Angle | Up to 360° or more |
| Cycle Life | 10,000 to over 1,000,000 cycles |
📦 Ordering & Custom Design
We provide both standard stock models and fully customized torsion springs made to order. Our engineering team works with CAD files, technical drawings, and customer requirements to manufacture springs that meet exact tolerances and load expectations.
🛡️ Quality Assurance
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ISO-certified manufacturing
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100% quality-inspected before delivery
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Load and fatigue testing on request
🔍 Why Choose Our Torsion Springs?
✅ Precision Manufacturing
✅ Long Lifecycle Performance
✅ Rust & Fatigue Resistant Materials
✅ Fast Prototyping & Bulk Production
✅ Competitive Pricing with Global Delivery