Dual Coil Torsion Spring SUS304 Stainless Steel with Dual Coil Structure and

The Dual Coil Torsion Spring | SUS304 Stainless Steel OEM Spring is a precision-engineered mechanical spring designed to provide reliable rotational force, torque control, and return motion in various mechanical systems. Featuring a unique dual coil structure, this torsion spring delivers enhanced torque performance, balanced force distribution, and improved stability compared with traditional single coil torsion springs.

Manufactured from high-quality SUS304 stainless steel spring wire, the dual coil torsion spring offers excellent corrosion resistance, fatigue strength, and long-term durability. It is ideal for applications requiring repeated rotational movement, stable torque output, and reliable mechanical performance under demanding operating conditions.

The double coil design helps improve spring efficiency by providing higher torque capacity within a compact structure. It can effectively support rotational mechanisms, return functions, and controlled movement in automotive components, industrial equipment, electrical devices, and precision assemblies.

Produced using advanced CNC spring coiling technology and precision forming processes, our stainless steel torsion springs feature accurate dimensions, consistent torque performance, and excellent repeatability. Each spring can be customized according to torque requirements, installation space, rotation angle, wire diameter, and application conditions.

As a professional spring manufacturer, we provide OEM and ODM dual coil torsion spring solutions, including custom design, prototype development, material selection, surface treatment, performance testing, and mass production. Our springs are widely used by customers in automotive, machinery, electronics, appliances, and industrial equipment industries.

• Premium SUS304 Stainless Steel Material: Excellent corrosion resistance, oxidation resistance, and long service life
• Dual Coil Structure Design: Increased torque capacity, improved balance, and stable rotational performance
• Reliable Torque Performance: Consistent rotational force and return torque for repeated mechanical movements
• High Fatigue Resistance: Excellent durability during continuous twisting cycles
• Compact Space-Saving Design: High performance while maintaining compact installation size
• Precision CNC Manufacturing: Accurate dimensions, consistent coil geometry, and stable product quality
• Excellent Environmental Resistance: Strong protection against moisture, corrosion, temperature changes, and outdoor environments
• Custom Torque Solutions Available: Spring torque, coil dimensions, leg angles, wire diameter, and mounting structure customization

• Automotive Components: Hinges, seat mechanisms, pedal assemblies, door systems, locking mechanisms, and return devices
• Industrial Machinery: Automation equipment, mechanical machines, production systems, and industrial tools
• Electrical Equipment: Switches, circuit breakers, connectors, and electrical devices
• Household Appliances: Washing machines, refrigerators, ovens, and other appliances
• Precision Mechanical Devices: Instruments, tools, measuring equipment, and compact mechanical assemblies
• Hardware and Consumer Products: Locks, hinges, clamps, folding mechanisms, and various hardware products
• Aerospace and Special Equipment: Applications requiring lightweight, durable, and corrosion-resistant components

We provide professional OEM and ODM dual coil torsion spring manufacturing services according to customer drawings, samples, and technical requirements.

• SUS304 Stainless Steel
• SUS316 Stainless Steel
• Carbon Steel
• Music Wire
• Alloy Spring Steel
• Phosphor Bronze

• Wire diameter
• Coil diameter
• Coil length
• Number of coils
• Leg length
• Leg direction
• Mounting dimensions

• Torque value
• Rotation angle
• Working load
• Spring rate
• Fatigue life requirements

• Straight legs
• Bent legs
• Hook legs
• Extended legs
• Special mounting structures

• Stainless steel polishing
• Passivation
• Nickel plating
• Zinc plating
• Black oxide coating

Customers can provide engineering drawings, CAD files, samples, and performance requirements. Our engineering team provides spring design optimization, prototype production, and mass manufacturing solutions.

• Professional Spring Design Support: Technical assistance including torque calculation, material selection, structure optimization, and performance improvement
• Prototype Development: Custom sample production for testing dimensions, torque performance, and installation compatibility
• Tooling and Manufacturing Support: Complete production process including spring design, CNC coiling, precision forming, heat treatment, surface finishing, and quality inspection
• Quality Control: Strict inspection of raw materials, dimensional measurement, torque testing, appearance, and performance verification
• OEM Mass Production: Stable production capacity for automotive suppliers, industrial manufacturers, and mechanical equipment companies worldwide
• After-Sales Support: Technical consultation, order tracking, and long-term cooperation support

Standard packaging options include plastic bags, PE packaging, carton boxes, and customized labels. For large-volume orders: export cartons, pallet packaging, and wooden cases. Products are carefully packed to prevent deformation, scratches, corrosion, and transportation damage.

Available shipping methods: express shipping (DHL, FedEx, UPS), air freight, sea freight, and customer-appointed logistics. Trade terms: EXW, FOB, CIF, DDP. Lead time depends on spring specifications, customization requirements, and order quantity.

A dual coil torsion spring is a spring with two connected coil sections designed to generate rotational force and provide higher torque capacity and balanced performance compared with standard torsion springs.

The standard material is SUS304 stainless steel, providing excellent corrosion resistance, strength, and durability. SUS316 and other spring materials are also available.

The main advantages include higher torque output, better force balance, improved stability, compact design, and longer service life.

Yes. We provide OEM customization for wire diameter, coil size, torque value, rotation angle, leg design, and surface treatment.

They are widely used in automotive, machinery, electronics, appliances, hardware, industrial equipment, and precision mechanical applications.