Springs
Extension Springs
Hextro supplies custom extension springs from China with hook, loop or custom end forms, carbon or stainless wire, spring rate review and protective packaging.
Specifications
- Surface Finish Options
- Plain oiled finish, zinc plating, nickel plating, black oxide, passivation, anti-rust oil and other custom surface treatments.
- Common Design Options
- Hook ends, loop ends, custom end forms, different coil counts, initial tension, preload, custom spring rate and special wire grades can be discussed according to drawing or performance requirements.
- Common Applications
- Linkages, doors, latches, tools, mechanisms, fixtures, appliances, automotive components, maintenance kits and OEM spring assemblies.
- Quality Check Points
- Wire diameter, outer diameter, free length, coil count, end form, hook opening, spring rate, preload, load performance, surface finish and packaging can be checked according to order requirements.
Extension springs, also known as tension springs, are coil springs designed to provide resistance as they are stretched. They are commonly used in linkages, doors, mechanisms, tools, fixtures, appliances and OEM assemblies where pulling force or return movement is required.
Hextro supplies custom extension springs according to drawings, samples or load requirements. End styles such as hooks, loops, extended hooks, machine loops and custom formed ends can be reviewed according to installation space, load direction and working movement.
Available Materials: Carbon spring steel, stainless steel 302, stainless steel 304, stainless steel 316, music wire and other specified spring materials according to load, fatigue, corrosion resistance and working environment requirements.
Surface Finish Options: Plain oiled finish, zinc plating, nickel plating, black oxide, passivation, anti-rust oil and other custom surface treatments.
Common Design Options: Hook ends, loop ends, custom end forms, different coil counts, initial tension, preload, custom spring rate and special wire grades can be discussed according to drawing or performance requirements.
Common Applications: Linkages, doors, latches, tools, mechanisms, fixtures, appliances, automotive components, maintenance kits and OEM spring assemblies.
What We Need for Quotation: Please send wire diameter, outer diameter, free length, coil count, end type, hook or loop dimensions, material, spring rate, preload or load requirement, surface finish, quantity and drawings or samples if available.
Quality Check Points: Wire diameter, outer diameter, free length, coil count, end form, hook opening, spring rate, preload, load performance, surface finish and packaging can be checked according to order requirements.
