Dongguan Kaiyan Hardware Products Co., Ltd.
| End Type | Hook / Loop / Custom Ends |
| Surface Finish | Zinc Plated / Nickel Plated / Powder Coated |
| Delivery Time | 8days |
| Payment Terms | T/T |
| Material | Stainless Steel / Carbon Steel / Music Wire |
| Outer Diameter | Custom |
| Packaging Details | 40*40*25cm |
| Supply Ability | 1000000pieces/month |
| Wire Diameter | 0.1 mm – 8 mm |
| Free Length | Custom |
| Place of Origin | china |
| Brand Name | Kaiyan |
| Certification | ISO9001:2015 |
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Product Specification
| End Type | Hook / Loop / Custom Ends | Surface Finish | Zinc Plated / Nickel Plated / Powder Coated |
| Delivery Time | 8days | Payment Terms | T/T |
| Material | Stainless Steel / Carbon Steel / Music Wire | Outer Diameter | Custom |
| Packaging Details | 40*40*25cm | Supply Ability | 1000000pieces/month |
| Wire Diameter | 0.1 mm – 8 mm | Free Length | Custom |
| Place of Origin | china | Brand Name | Kaiyan |
| Certification | ISO9001:2015 | ||
| High Light | Custom Design Steel Extension Spring ，OEM Industrial Steel Extension Spring | ||
Extension springs, also called tension springs, are helical mechanical springs designed to operate under tensile load. They are engineered to absorb and store energy when subjected to a pulling force and release that energy as the spring returns to its original length after the load is removed.
These springs typically feature hooks, loops, or other end configurations that allow them to be securely attached to mating components. When force is applied, the coils separate slightly, generating a restoring force that attempts to bring the spring back to its initial state. This property makes extension springs ideal for applications requiring controlled tension and return motion.
Our extension springs are manufactured from high-performance materials such as stainless steel, carbon steel, and music wire. These materials offer excellent tensile strength, elasticity, and fatigue resistance, enabling reliable performance in both dynamic and static load conditions.
Precision spring forming equipment ensures consistent coil geometry, accurate spring rate, and stable load characteristics. Various end styles—including machine hooks, crossover hooks, side loops, and double loops—can be produced to meet specific installation and load requirements. Custom spring dimensions, wire diameters, and surface finishes are also available according to customer drawings or technical specifications.
Extension springs are widely used in mechanical assemblies where tension and return force are required, including automotive systems, industrial machinery, agricultural equipment, garage door mechanisms, fitness equipment, and household appliances.
| Item | Description |
|---|---|
| Product Name | Extension Spring |
| Spring Type | Tension Spring |
| Material | Stainless Steel / Carbon Steel / Music Wire |
| Wire Diameter | 0.1 mm – 8 mm |
| Outer Diameter | Custom |
| Free Length | Custom |
| End Type | Hook / Loop / Custom Ends |
| Surface Finish | Zinc Plated / Nickel Plated / Powder Coated |
| Production Type | OEM / Custom Manufacturing |
| Application | Machinery, Automotive, Equipment |
High Quality Materials
Our extension springs are made from premium spring steel materials, ensuring strong elasticity and long fatigue life.
Precision Spring Manufacturing
Advanced CNC spring forming equipment guarantees accurate dimensions and consistent spring performance.
Custom Design Capability
We support OEM and ODM production, allowing extension springs to be customized according to drawings or samples.
Various End Configurations
Multiple hook styles and loop types are available to meet different installation requirements.
Reliable Production Capacity
Efficient manufacturing processes ensure fast sample production and stable delivery for large orders.
Extension springs are widely used in various industries, including:
Automotive components
Industrial machinery
Agricultural equipment
Garage door systems
Fitness equipment
An extension spring is a mechanical spring designed to resist a pulling force and return to its original length when the force is removed.
Common materials include stainless steel, carbon steel, and music wire for high strength and durability.
Yes, extension springs can be manufactured according to customer drawings, samples, or specific technical requirements.
Common end types include machine hooks, crossover hooks, side hooks, and double loops.
Company Details
Business Type:
Manufacturer
Year Established:
2008
Total Annual:
2000000-6000000
Employee Number:
80~120
Ecer Certification：
Verified Supplier
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 dedic... 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 dedic...
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