Our extension springs are available in 304 stainless steel, carbon steel and special alloys with customized wire diameter, length and load requirements. With over 40 years of metal manufacturing experience, we provide OEM spring solutions from prototype development to mass production. KAIFORGE manufactures custom stainless steel extension springs for industrial machinery, automotive components and hardware applications. Custom Stainless Steel Extension Springs Manufacturer.
KAIFORGE is a China manufacturer specializing in custom fasteners, CNC machining parts, springs and wire forming components.
✔ Custom extension spring design
✔ 304 / 316 stainless steel options
✔ High fatigue resistance
✔ Corrosion resistant surface treatment
✔ OEM production available
✔ Small batch and mass production
✔ Precision wire forming process
✔ Custom load requirements available
Applications:
–Automotive Components
–Industrial Machinery
–Automation Equipment
–Electrical Devices
–Furniture Hardware
–Mechanical Assemblies
KAIFORGE provides custom extension springs manufacturing solutions with flexible specifications, including wire diameter, spring dimensions, hook designs and load requirements. Our OEM extension springs are produced for industrial equipment, automotive components and engineering applications.
| Specification | Custom Options |
| Model no. | LS-Sp01 |
| Product Type | Custom Extension Springs / Tension Springs |
| Material | Stainless Steel 304, Stainless Steel 316, Carbon Steel, Spring Steel, Alloy Steel |
| Wire Diameter | 0.2 mm – 12 mm (Customized according to requirements) |
| Outer Diameter (OD) | Customized based on application requirements |
| Inner Diameter (ID) | Customized based on design requirements |
| Free Length | Customized according to drawings or samples |
| Coil Count | Custom coil number available |
| Hook Types | Machine Hooks, Cross Over Hooks, Extended Hooks, Side Hooks, Custom Hook Designs |
| Hook Direction | Left Hook, Right Hook, Double Hook, Customized |
| Spring Rate | Customized according to required load and working conditions |
| Initial Tension | Adjustable according to application requirements |
| Load Capacity | Customized based on working load requirements |
| Working Temperature | Depends on material selection and application environment |
| Surface Treatment | Zinc Plating, Nickel Plating, Black Oxide, Passivation, Oil Coating, Customized Finishes |
| Manufacturing Process | CNC Spring Coiling, Wire Forming, Heat Treatment, Surface Treatment, Inspection |
| Quality Inspection | Dimensional Inspection, Load Testing, Material Verification, Final Inspection |
| Production Capability | Prototype, Small Batch Production, Mass Production |
| Application Industries | Automotive, Industrial Equipment, Machinery, Furniture Hardware, Electrical Appliances |
Extension Springs Manufacturing Process
Watch how KAIFORGE produces custom extension springs from wire forming to final inspection.
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