Custom Double Torsion Spring with High Fatigue Resistance, CNC Precision Forming

Custom Double Torsion Springs are precision-engineered mechanical springs designed to store and release rotational energy while providing consistent torque and long-lasting performance under repeated stress cycles. Manufactured from premium-grade spring steel, stainless steel, music wire, or customized alloy materials, these springs are widely used in automotive systems, industrial equipment, electrical devices, and precision machinery.

Unlike single torsion springs, double torsion springs feature two coiled sections connected by a center leg, enabling balanced torque distribution and enhanced load-bearing capability. This design significantly improves stability, durability, and fatigue resistance, making them ideal for high-cycle applications requiring reliable rotational force and extended service life.

Our high-fatigue automotive torsion springs are produced using advanced CNC spring forming technology and strict quality control procedures to ensure dimensional accuracy, consistent torque values, and excellent mechanical performance. We support custom designs based on customer drawings, samples, or technical requirements.

• High fatigue resistance for long service life
• Precision torque control and stable rotational force
• Double-coil structure for balanced load distribution
• Excellent elasticity and deformation recovery
• Customizable dimensions, torque, and leg configurations
• Corrosion-resistant surface treatments available
• Suitable for high-temperature and heavy-duty applications
• Manufactured with CNC precision spring forming equipment
• Consistent quality with strict inspection standards
• OEM and ODM customization supported

Custom double torsion springs are widely used across multiple industries that require reliable rotational force, long fatigue life, and compact mechanical performance.

These springs are extensively applied in automotive components such as:

• Car door lock systems
• Seat adjustment mechanisms
• Brake systems
• Sun visors
• Fuel caps
• Hinges and latches
• Interior control components

Their high fatigue resistance ensures stable performance even under continuous vibration and repeated operation in demanding automotive environments.

Double torsion springs are used in industrial equipment for:

• Mechanical linkages
• Control systems
• Automation equipment
• Agricultural machinery
• Heavy-duty industrial hinges

Suitable for:

• Switch assemblies
• Battery compartments
• Electrical connectors
• Consumer electronics
• Smart devices

Frequently used in:

• Washing machines
• Microwaves
• Refrigerators
• Small kitchen appliances
• Smart home devices

We provide fully customized double torsion spring manufacturing services according to your application requirements.

• Wire diameter
• Coil diameter
• Number of coils
• Leg length and angle
• Torque value
• Rotation direction
• Material selection
• Surface treatment
• Heat treatment
• Packaging method

Our engineering team can assist with:

• Spring structure optimization
• Torque calculation
• Material recommendation
• Prototype development
• Sample production
• Mass production solutions

Customers can provide technical drawings, CAD files, samples, or performance requirements. OEM and ODM projects are welcomed.

We provide comprehensive technical and manufacturing support throughout the entire project lifecycle.

• Professional engineering consultation
• Custom spring design assistance
• Rapid prototype manufacturing
• Small batch and mass production
• Strict quality inspection
• Material certification support
• Surface treatment solutions
• Stable global supply capability
• Fast response technical support

Each batch undergoes rigorous inspection including:

• Dimensional inspection
• Torque testing
• Fatigue life testing
• Surface quality inspection
• Material verification

• PE bags and export cartons
• Customized labeling available
• Anti-rust protection packaging
• Tray and blister packaging optional
• Safe packaging for international transportation

• Express delivery (DHL, FedEx, UPS, TNT)
• Air freight
• Sea freight
• Railway transportation

• Sample Production: 5-10 working days
• Mass Production: 15-30 working days depending on order quantity

Yes. We support full OEM and ODM manufacturing based on customer drawings, samples, or technical specifications.

Common materials include stainless steel, music wire, carbon steel, alloy steel, and customized spring materials.

These springs are widely used in automotive, electronics, industrial machinery, household appliances, and hardware industries.

Yes. We offer zinc plating, nickel plating, powder coating, black oxide, electrophoresis, and other customized surface treatments.

Yes. Prototype and sample production services are available for testing and approval before bulk manufacturing.

We perform strict quality inspections including dimensional testing, torque testing, fatigue testing, and material verification.

Please provide drawings, wire diameter, material requirements, torque specifications, dimensions, application details, or samples whenever possible.

Yes. We provide worldwide shipping solutions by express, air, sea, and railway transportation.