KAIFORGE is a custom extension springs manufacturer specializing in OEM stainless steel extension springs, carbon steel springs, and precision spring solutions for industrial applications. Our extension springs are available in stainless steel, carbon steel, and special alloys for industrial machinery, automotive components, hardware applications, and OEM projects. We also provide precision springs solutions including Compression Springs and torsion Springs, Wire Forming Components for industrial applications.
✔ 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
KAIFORGE follows strict manufacturing processes to ensure consistent quality and reliable performance.
Our extension spring production process includes:
✓ Wire Material Inspection
✓ CNC Spring Coiling
✓ Wire Forming
✓ Hook Forming
✓ Heat Treatment
✓ Surface Treatment
✓ Dimensional Inspection
✓ Load Testing
✓ Final Quality Inspection
Watch how KAIFORGE produces custom extension springs from wire forming to final inspection.
Applications of Extension Springs
Why Choose KAIFORGE Extension Springs
KAIFORGE provides professional custom extension spring manufacturing solutions with:
✓ 40+ Years Metal Manufacturing Experience
✓ OEM Custom Spring Production
✓ Precision Wire Forming Capability
✓ Stainless Steel and Special Material Options
✓ Prototype and Small Batch Production
✓ Mass Production Capability
✓ Strict Quality Inspection
✓ Support for Custom Drawings and Samples
Related Products
FAQ Sche
Q1: What is a custom extension spring?
A: A custom extension spring is a tension spring manufactured according to specific customer requirements, including wire diameter, spring dimensions, hook design, material, and load capacity. KAIFORGE produces custom extension springs for industrial machinery, automotive components, automation equipment, and OEM applications.
Q2: What materials are available for KAIFORGE extension springs?
A: KAIFORGE extension springs are available in stainless steel 304, stainless steel 316, carbon steel, spring steel, and alloy steel. Material selection depends on application requirements such as corrosion resistance, strength, working environment, and service life.
Q3: Can KAIFORGE manufacture extension springs according to drawings or samples?
A: Yes. KAIFORGE provides OEM custom extension spring manufacturing based on customer drawings, samples, specifications, or application requirements. Our engineering team supports design optimization and production from prototype development to mass production.
Q4: What specifications can be customized for extension springs?
A: KAIFORGE can customize extension spring specifications including wire diameter, outer diameter, free length, coil number, hook type, hook direction, spring rate, load capacity, and surface treatment according to customer requirements.
Q5: What industries use extension springs?
A: Extension springs are widely used in industrial machinery, automation equipment, automotive components, mechanical assemblies, furniture mechanisms, electrical equipment, and other engineering applications requiring reliable tension force and durability.
Q6: Does KAIFORGE provide small batch and mass production for extension springs?
A: Yes. KAIFORGE supports prototype development, small batch production, and large volume manufacturing. Our flexible production capability allows us to serve both customized projects and long-term OEM supply requirements.
Q7: How does KAIFORGE ensure extension spring quality?
A: KAIFORGE follows strict quality control procedures including material inspection, dimensional inspection, spring load testing, surface treatment inspection, and final quality verification to ensure reliable performance and consistent product quality.
Q8: Why choose KAIFORGE as a custom extension spring manufacturer?
A: KAIFORGE has over 40 years of metal manufacturing experience and provides custom extension springs, wire forming components, fasteners, and CNC machining solutions. We support OEM customers with precision manufacturing, customized materials, flexible production, and reliable quality control.
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