Standard
General
Extension
Engineered to absorb and store energy by offering resistance to a pulling force. Our standard extension springs feature precise initial stretching control and are ideal for a multitude of automotive, industrial, and consumer applications requiring reliable return action.
Technical Specifications
Standard manufacturing parameters for general extension applications.
| Parameter | Specification Range | Standard Tolerance |
|---|---|---|
| Wire Diameter (d) | 0.2 mm - 8.0 mm | ± 0.01 mm - ± 0.03 mm |
| Outer Diameter (OD) | 3.0 mm - 50.0 mm | ± 0.1 mm - ± 0.3 mm |
| Load Capacity | 2 N - 200 N | ± 10% |
| Initial Force | Customizable based on coiling parameters and material | |
| Available Materials | Music Wire, Stainless Steel (302/304/316), Hard Drawn Steel | |
Features & Advantages
Consistent pulling force for reliable everyday operation.
Advanced CNC winding allows us to build specific initial resistance into the coils, keeping them tightly wound until the exact required force is applied.
Automated loop forming ensures the hooks and loops have consistent geometries, preventing stress concentrations and premature failure.
Streamlined manufacturing processes make these extension springs highly economical for medium to high volume OEM production.
Available with various finishes including zinc plating and passivation to prevent corrosion in exposed environments.
Common Applications
Providing essential return action across multiple industries.
Automotive Interiors
Used in seat mechanisms, glove boxes, and pedal return systems.
Consumer Appliances
Providing pulling force for washing machine drums, oven doors, and vacuum mechanisms.
Hand Tools
Ensuring reliable return action in pliers, clamps, and specialized hardware.
Garage Doors
Standard counter-balance springs for residential and commercial door systems.
Ready to Optimize Your Manufacturing?
Send us your CAD files, blueprints, or performance requirements. Our engineering team will provide a comprehensive DFM (Design for Manufacturability) analysis and quote within 24 hours.