Double Body
Dual
Torsion
Engineered for balanced force distribution. Featuring two coil bodies connected by a central bridge, double torsion springs deliver exactly double the torque of a single body spring while ensuring symmetrical load distribution. Ideal for heavy-duty hinged applications and complex mechanical linkages.
Technical Specifications
Manufacturing capabilities for parallel double-body rotational springs.
| Parameter | Specification Range | Standard Tolerance |
|---|---|---|
| Wire Diameter (d) | 0.5 mm - 8.0 mm | ± 0.01 mm - ± 0.03 mm |
| Outer Diameter (OD) | 8.0 mm - 50.0 mm | ± 0.2 mm - ± 0.6 mm |
| Torque Capacity | 1.0 Nm - 40 Nm | ± 10% (Combined total torque) |
| Bridge Configurations | Straight, U-shaped, V-shaped, or complex custom geometry | |
| Coiling Direction | One left-hand wound body and one right-hand wound body | |
Features & Advantages
Why double torsion designs outperform single coil alternatives.
The opposing left and right-hand coils cancel out lateral forces, preventing the assembly mechanism from shifting or binding sideways.
Generates twice the torque of a single body spring within a compact horizontal footprint, perfect for wide hinged enclosures.
The connecting bridge serves as a robust central anchor point, eliminating the need for complex mounting hardware on the leg ends.
Manufactured on specialized multi-axis machines that form the entire complex structure from a single continuous piece of wire.
Specialized Applications
Where balanced torque and center anchoring are critical.
Heavy Lids & Ramps
Counterbalancing wide industrial covers, tailgates, and loading ramps.
Agricultural Equipment
Providing robust, balanced down-force in seeding and tilling machinery.
Medical Furniture
Assisting in the smooth elevation of hospital beds and adjustable examination tables.
Appliance Doors
Ensuring level and smooth operation for heavy oven and commercial dishwasher doors.
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