Custom Spring Manufacturing — Minuteman Spring Company
Custom Extension Springs Manufacturer
Tightly wound helical springs engineered to absorb and store energy by resisting a pulling force.
Extension Springs Specifications & Capabilities
- Wire Diameter
- 0.010" – 0.500" and beyond
- End Types
- Machine hook, cross-center, side hook, custom
- Initial Tension
- Controlled to specification
- Hand of Winding
- Right or left hand
- Body Style
- Full-coil, reduced-diameter ends
- Materials
- Carbon steel, stainless, specialty alloys
Extension springs — also called tension springs — store energy and exert a pulling force when stretched. They are designed with initial tension built into the coils, and feature a wide variety of end hook configurations to suit your assembly.
Minuteman Spring manufactures extension springs with machine hooks, cross-center hooks, side hooks, extended hooks, and custom end forms. Initial tension — the force required to separate the coils — is controlled to your specification.
We produce extension springs in wire diameters from fine instrument sizes through heavy industrial gauges. Body length, hook type, overall length, and load requirements are all engineered to your application.
From small-batch prototype orders to large production runs, every extension spring is inspected for dimensional accuracy and load compliance before shipment.
Available Materials for Custom Extension Springs
Common Applications for Extension Springs
- Agricultural equipment
- Garage door mechanisms
- Medical instruments
- Automotive assemblies
- Industrial machinery
- Consumer product latches
- Aerospace control systems
- Electronic enclosures
Custom Extension Springs manufacturer since 1946. Same-day quoting. Ships within 10 business days.
