Product Description

Our coil torsion springs are engineered to deliver precise rotational force and long-lasting performance in demanding industrial environments. Compared with standard springs on the market, our products are manufactured using high-precision spring forming equipment and strict material selection, ensuring consistent torque output and excellent fatigue resistance.

The springs can be produced from stainless steel, carbon spring steel, or music wire, allowing them to perform reliably in both indoor and outdoor conditions. Through optimized coil design and accurate leg positioning, each torsion spring provides stable mechanical return and smooth rotational movement.

To meet different engineering requirements, we offer fully customized solutions, including coil diameter, wire thickness, leg length, leg angle, and torque specifications. Various surface treatments such as nickel plating, zinc plating, passivation, or black oxide are also available to improve corrosion resistance and product durability.

With advanced manufacturing capability and strict quality inspection, our coil torsion springs are widely used in automotive components, electronic devices, mechanical assemblies, hardware fittings, and household appliances. Both prototype samples and large-scale production are supported to ensure reliable supply for global customers.

Product Specifications

Applications

Coil torsion springs are widely used in:

• Automotive mechanical components

• Electronic equipment assemblies

• Door hinges and locking mechanisms

• Industrial machinery

• Household appliances

• Clips, clamps, and hardware fittings

Why Choose Us

Why Choose KAIYAN Hardware

• 20+ years of precision metal manufacturing experience

• Custom design support and engineering optimization

• Fast tooling and prototype development

• Stable mass production capability

• Strict quality inspection before shipment

• Competitive factory direct pricing

FAQ

Q1: Can you produce custom torsion springs based on drawings?
Yes. We can manufacture torsion springs according to your drawings, samples, or technical requirements.

Q2: What materials are available for torsion springs?
Common materials include stainless steel, music wire, carbon spring steel, and phosphor bronze.

Q3: Do you support prototype samples before mass production?
Yes, we can provide prototype samples for testing and design verification.

Q4: What industries use torsion springs most frequently?
Torsion springs are widely used in automotive, electronics, machinery, hardware, and appliance industries.

Company introduction

Dongguan KAIYAN Metal Products Co., Ltd. is located in Dongguan, Guangdong, China—widely known as the “World’s Factory.” The company is a professional manufacturer specializing in precision metal stamping parts and custom metal components. With a dedicated stamping workshop and advanced manufacturing capabilities, KAIYAN focuses on producing a wide range of high-precision metal parts, including RF shielding cans, shielding frames, precision spring clips, electrical contact terminals, conductive contacts, metal brackets, metal enclosures, and various custom metal stamping parts. Our products are widely used in electronics, electrical equipment, communication devices, new energy vehicles, and industrial applications.

With years of experience in metal stamping manufacturing, KAIYAN continuously improves its production management system and integrates upstream and downstream supply chain resources to provide more comprehensive manufacturing services. In addition to stamping, we also support CNC machining, die casting parts, sheet metal fabrication, springs, plastic components, surface treatment, and product assembly, enabling us to offer global customers a one-stop customized solution from product design and mold development to production, quality inspection, packaging, and export.

In terms of technical development, KAIYAN has an experienced engineering and tooling team, and all molds are independently designed and developed in-house. The company continuously optimizes stamping processes and production workflows to improve both product quality and manufacturing efficiency. Equipped with multiple precision stamping machines, KAIYAN is capable of stable high-volume production while continuously upgrading automation and process efficiency.

For quality management, KAIYAN has obtained ISO 9001 Quality Management System Certification and IATF 16949 Automotive Quality Management Certification, and holds multiple technical patents. The company is also equipped with a full range of inspection equipment, including CMM coordinate measuring machines, 2.5D vision measuring systems, coating thickness testers, salt spray testers, hardness testers, and other precision inspection instruments. From raw materials to final shipment, strict quality control procedures ensure stable and reliable product performance, with all inspection data traceable for long-term quality assurance.

KAIYAN places strong emphasis on team development and efficient management, supported by professional engineering, production, quality, and sales teams that provide responsive and reliable services to global customers. Today, our products are exported to Europe, North America, and Southeast Asia, earning long-term trust from customers worldwide.

Guided by the philosophy of Quality First and Win-Win Cooperation, Dongguan KAIYAN Metal Products Co., Ltd. is committed to continuously improving technology and manufacturing capabilities to deliver high-quality metal components and solutions to customers around the world.