Product Specification

Custom Spiral Torsion Spring – Stable Torque Output, High Fatigue Resistance, Precision Manufacturing, OEM Available

Product Description

Our Custom Spiral Torsion Springs are precision-engineered mechanical components specifically designed to deliver stable, controlled, and repeatable torque output across a wide range of industrial, automotive, and mechanical applications. Unlike conventional wire torsion springs, spiral torsion springs store and release energy through a flat metal strip wound into a compact spiral configuration, allowing for smooth rotational force, higher torque capacity, and enhanced durability while occupying minimal installation space. This design enables engineers to achieve precise motion control in applications where space constraints are critical.

Manufactured using premium carbon steel, stainless steel (302, 304, 316), or alloy steel, these springs combine exceptional fatigue resistance, high load-bearing capacity, and long operational life, even under continuous or high-cycle usage. Each spring undergoes advanced forming processes, including precision stamping, CNC coiling, and optimized spiral shaping, followed by controlled heat treatment to enhance elasticity, strength, and resilience. Strict dimensional and quality control ensures uniform strip thickness, consistent width, and accurate spiral geometry, resulting in highly predictable torque performance and repeatable operation across multiple cycles.

Engineered for precision, durability, and long-term performance stability, our custom spiral torsion springs are suitable for both light-duty mechanisms requiring smooth rotational motion and heavy-duty industrial systems demanding high torque and structural integrity. Their robust design also ensures reliable operation in environments subject to vibration, temperature fluctuations, or repeated mechanical stress.

We provide full OEM and ODM support, delivering tailor-made solutions that meet your specific functional and design requirements. Customers can supply drawings, technical specifications, or physical samples, and our experienced engineering team will collaborate on design optimization, torque calculation, material selection, and performance validation. From initial prototyping and testing to full-scale mass production, every spring is manufactured to comply with international quality standards, ensuring consistency, reliability, and long-term operational excellence.

Whether for automotive seat mechanisms, industrial machinery, locking systems, precision instruments, or consumer hardware, our custom spiral torsion springs are engineered to meet the highest standards of performance, durability, and customization, providing dependable solutions for a wide range of engineering and industrial applications.

Features

• Stable and consistent torque output throughout the working range
  Each spring is engineered to provide reliable and uniform torque across its entire operating angle, ensuring smooth motion, precise control, and predictable performance in both light-duty and heavy-duty applications.

• High fatigue resistance for long-term repeated operation
  Manufactured from premium materials with optimized spiral geometry, these springs withstand thousands of operating cycles without significant loss of torque or deformation, making them ideal for applications requiring long-term durability and reliability.

• Precision manufacturing with tight dimensional tolerances
  Advanced forming techniques, CNC coiling, and strict quality control ensure accurate strip thickness, width, spiral diameter, and end configurations, providing consistent performance and reducing variability between batches.

• Compact and robust flat spiral structure
  The flat spiral design allows for high torque in a small footprint, offering structural strength, space-saving installation, and enhanced mechanical stability even under heavy loads or high-frequency operation.

• Multiple material options for strength and corrosion resistance
  Available in carbon steel, stainless steel, and specialty alloys, our springs can be tailored to meet specific strength, elasticity, wear resistance, and environmental requirements, including applications in corrosive or high-humidity environments.

• Custom torque, size, and end configurations available
  Fully customizable to meet your specific application needs, including strip thickness, spiral diameter, number of turns, torque range, rotation direction, and end shapes, ensuring perfect integration into your design.

• Suitable for OEM and ODM manufacturing projects
  Complete support from design consultation, prototyping, testing, to mass production, making these spiral torsion springs ideal for OEM and ODM applications across automotive, industrial machinery, consumer electronics, and other specialized industries.

Technical Parameters

Applications

Custom spiral torsion springs are widely used in applications that require precise rotational force, controlled torque, and long-term durability. Their unique flat spiral design allows them to deliver smooth, stable, and repeatable torque within a compact footprint, making them highly versatile across a broad range of industries. Typical applications include:

• Automotive components: These springs are commonly used in seat adjustment mechanisms, retractors, latching systems, and return mechanisms, providing consistent torque, smooth motion, and reliable operation under repeated cycles. They ensure safety, comfort, and precise functionality in vehicle interiors.

• Industrial machinery and mechanical equipment: Custom spiral torsion springs are ideal for automated systems, motion control assemblies, and precision machinery, delivering stable torque and accurate force control in critical operations. They support long-term industrial performance even in demanding environments.

• Hinges, doors, and counterbalance systems: By providing smooth, controlled movement and predictable return force, these springs are used in doors, cabinets, and counterbalance systems where compact size and consistent performance are essential.

• Locks, clamps, and safety devices: The springs ensure precise torque and reliable return motion, making them indispensable in locking mechanisms, clamping devices, and safety systems where consistent force is critical for operational reliability.

• Power tools and heavy-duty mechanical assemblies: In high-load applications, these springs maintain reliable torque output and high fatigue resistance, supporting repeated operation without performance degradation in hand tools, machinery, and industrial equipment.

• Home appliances and commercial equipment: Compact and robust, spiral torsion springs are applied in washing machines, vending machines, office equipment, and other consumer devices, offering long service life, compact installation, and consistent rotational performance.

Thanks to their stable torque output, high fatigue resistance, and customizable design, custom spiral torsion springs are the preferred choice for systems that require long-term reliability under repeated loading conditions. Their adaptability to custom dimensions, torque ranges, materials, and end configurations allows engineers to integrate them seamlessly into both standard and highly specialized assemblies, improving performance, durability, and efficiency.

Customization

We provide comprehensive customization services to meet the exact application, performance, and durability requirements of our customers. Our experienced engineering team works closely with clients to design tailor-made custom spiral torsion springs that seamlessly integrate into assemblies and deliver precise torque, reliable performance, and long-term durability in their intended applications.

• Custom strip thickness, width, and spiral dimensions
  Each spring can be manufactured with precise strip thickness, width, inner and outer diameters, and number of turns, ensuring optimal fit within your assembly and accurate torque delivery for your specific application.

• Torque design based on load, working angle, and expected cycle life
  We calculate and design torque characteristics according to your system’s load requirements, operating angle, and expected life cycles, ensuring consistent, repeatable performance throughout the spring’s lifetime.

• Material selection for strength, elasticity, or corrosion resistance
  A wide range of materials, including carbon steel, stainless steel, and alloy steel, are available to optimize the spring’s strength, elasticity, and resistance to wear or corrosion, depending on environmental and operational requirements.

• Surface treatment tailored to environmental conditions
  We offer surface finishes such as zinc plating, black oxide, polishing, or passivation to enhance corrosion resistance, reduce wear, and improve the spring’s longevity in challenging environments.

• Prototype development, sampling, and performance validation
  Before mass production, we provide prototypes and functional samples for testing. This allows verification of torque output, dimensional accuracy, and cycle life, ensuring that the final product meets your performance standards.

Customers can provide drawings, technical specifications, or physical samples, and our engineering team will collaborate on design optimization, material selection, torque validation, and end configuration. From initial concept and prototyping to final approval and mass production, we ensure that every custom spiral torsion spring is perfectly tailored to your system’s requirements and engineered for long-term reliability and consistent performance.

Support and Services

• Professional engineering consultation

• Fast quotation and technical evaluation

• Prototype and sample support

• Strict quality inspection and process control

• Stable mass production capability

• Long-term OEM manufacturing and supply support

We are committed to delivering consistent quality, technical reliability, and responsive customer service.

Packing and Shipping

• Standard bulk packing with protective materials

• Custom packaging solutions available upon request

• Export-standard cartons or pallets

• Secure packing to prevent deformation during transportation

• Flexible shipping options: sea freight, air freight, or express delivery

FAQ

Q1: Can you manufacture custom spiral torsion springs based on our drawings?
Yes. We provide full OEM and ODM manufacturing based on customer drawings, samples, or technical specifications.

Q2: What materials are available for custom spiral torsion springs?
Common materials include carbon steel, stainless steel, and alloy steel. Other materials can be discussed based on application needs.

Q3: Do you provide samples before mass production?
Yes. Prototype samples are available for testing and approval prior to mass production.

Q4: How do you ensure product quality and consistency?
We implement strict dimensional inspection, torque testing, and fatigue testing throughout the production process.

Q5: What is the typical lead time?
Lead time depends on design complexity and order quantity. Please contact us for a detailed production schedule.