Stainless Steel Extension Spring
We manufacture durable stainless steel extension spring with wire diameters of 0.3mm–5.0mm and outer diameters of 4mm–60mm. Customizable free length spans 10mm to 500mm with abundant hook style options. Smooth arc transition at hook joints eliminates stress concentration and extends the service life of each stainless steel extension spring.
End Hook Types
Round hook
Most common style with simple structure for general tension scenarios
Half-round hook
Uniform stress distribution for easy installation
Long hook
Extended hook arm for large installation spacing or long connection distance
German hook
Compact structure with high mechanical strength, widely adopted in industrial equipment
British hook
Smooth curved shape to reduce stress concentration
Custom special hooks
Flat hooks, lifting rings and other tailored structures based on installation demands
Product Features
• High hook strength: Smooth transitional arcs at hook joints reduce stress concentration and boost tensile fatigue lifespan.
• Uniform pulling force: Precision coiling ensures even stress distribution across all coils with smooth stretching motion.
• Reliable rust resistance: Stainless steel base material paired with electrolytic polishing or passivation prevents rust under long-term humid service.
• Flexible specifications: Custom wire diameter, outer diameter, length and hook shapes for micro small and large industrial elastic parts.
Application Scenarios
Widely applied to hardware tools, fitness equipment, auto spare parts, electronic devices, medical instruments and outdoor goods requiring tension transmission.
Flexible Customization
Baoding Zhongxin Spring Manufacturing Co., Ltd. offers highly flexible customization services based on drawings, samples or tension parameters. Minimum order quantity is negotiable, and mixed model orders are supported within one shipment. Our professional engineers optimize wire diameter, coil number and hook design according to actual tension load, installation space and working environment. We deliver fast technical solutions for both standard and non-standard elastic components to satisfy diversified procurement demands.
Product Parameter Table
|
Parameter Item |
Value / Range |
|
Wire Diameter Range |
0.3 mm ~ 5.0 mm |
|
Outer Diameter Range |
4 mm ~ 60 mm |
|
Free Length |
10 mm ~ 500 mm (Customizable) |
|
End Hook Types |
Round hook, half-round hook, long hook, German hook, British hook (Customizable) |
|
Optional Materials |
SUS304 / SUS316 Stainless Steel Wire |
|
Surface Treatment |
Natural / Electrolytic Polishing / Passivation |
|
Customization Mode |
Customized per drawings, samples or tension requirements |
|
Application Scenarios |
Hardware tools, fitness equipment, auto spare parts, electronic devices, medical instruments, outdoor goods |
Hot Tags: stainless steel extension spring, China stainless steel extension spring manufacturers, suppliers, factory
You Might Also Like
Send Inquiry