Extension Spring Manufacturer for OEM & Industrial Applications

Extension springs are helical tension springs designed to operate under pulling force. They store energy when stretched and return to their original length once the load is released. Commonly used in automotive linkages, agricultural equipment, garage hardware, tools, machinery and industrial assemblies requiring controlled tension.
We manufacture custom extension springs for OEMs, distributors and industrial buyers.

Manufacturing Capability

• Wire Diameter: 0.3 mm to 7 mm

• Custom lengths and coil diameters

• Hook and loop end configurations

• Light to heavy-duty applications

• Prototype to bulk production

Produced under ISO 9001:2015 quality systems with dimensional and load verification.

Materials & Surface Treatment
Available in:
High Carbon Spring Steel (EN 10270-1), Oil Tempered Wire (EN 10270-2), Stainless Steel 304 / 316, Music Wire and Galvanized Spring Steel.
Surface finishes include zinc plating, powder coating, passivation, black oxide and shot peening.

Packaging & Supply

• Bulk industrial packing

• Export-ready cartons

• Private labeling & custom barcoding

Suitable for OEM, distributor and aftermarket supply chains.

Selection Considerations
Selection depends on required load, extension length, end type configuration, operating environment and cycle frequency. Custom development support available for application-specific requirements.