Custom Tension Spring Manufacturer for Industrial and Mechanical Applications
Product Introduction
Hunt Spring is a professional custom tension spring manufacturer providing precision extension springs for industrial machinery, electronic devices, automotive components, hardware products, tools, and customized mechanical assemblies. A tension spring, also known as an extension spring, is designed to absorb and store energy when stretched, then return to its original length when the pulling force is released.
Our custom tension springs are manufactured according to customer drawings, samples, or specific application requirements. We support different wire diameters, outside diameters, free lengths, hook types, materials, surface treatments, and load requirements. Whether you need small tension springs for electronic products or heavy duty extension springs for industrial equipment, Hunt Spring can provide flexible OEM manufacturing support for both sample development and bulk orders.
As a direct spring factory in China, we focus on accurate forming, stable elasticity, reliable material selection, and consistent quality control to help B2B buyers source durable and application-ready spring products.
Key Advantages of Our Tension Springs
1. Fully Customized Spring Design
Every application has different installation space, pulling force, working stroke, and service life requirements. Hunt Spring provides custom extension springs with hooks based on your technical drawings or samples. We can customize spring length, coil diameter, wire diameter, hook shape, loop direction, material, and finish to match your product design.
2. Multiple Hook and End Options
Tension springs are commonly designed with different end structures, including machine hooks, extended hooks, side hooks, German hooks, swivel hooks, and custom-shaped ends. The right hook design improves installation stability and ensures the spring works smoothly during repeated stretching.
3. Reliable Material Selection
We manufacture stainless steel tension springs, carbon steel tension springs, spring steel extension springs, music wire springs, and other custom material options. Stainless steel is suitable for corrosion-resistant applications, while high-carbon spring steel and music wire are widely used for strong elasticity and high mechanical performance.
4. Stable Elasticity and Long Service Life
A high-quality tension spring must maintain stable pulling force during repeated use. Hunt Spring controls forming accuracy, heat treatment, surface finish, and dimensional inspection to help ensure consistent spring performance. Our springs are suitable for demanding applications where reliability and durability are important.
5. OEM and Bulk Production Support
As an experienced extension spring manufacturer, Hunt Spring supports sample production, OEM projects, and bulk manufacturing for international B2B customers. Buyers can provide drawings, samples, or application details, and our team will assist with spring customization and production evaluation.
Application Areas
Our custom tension springs are widely used in many industries and mechanical products, including:
- Industrial machinery and automation equipment
- Automotive parts and mechanical assemblies
- Electronic products and electrical devices
- Door locks, handles, hinges, and hardware components
- Fitness equipment and hand tools
- Agricultural machinery and outdoor equipment
- Toys, household appliances, and consumer products
- Valves, switches, clips, and tensioning systems
For projects requiring stable pulling force, compact structure, corrosion resistance, or customized hooks, Hunt Spring can provide suitable tension spring solutions based on your product requirements.
Technical Parameters
| Item | Custom Options |
|---|---|
| Product Name | Tension Spring / Extension Spring |
| Material | Stainless Steel, Carbon Steel, Spring Steel, Music Wire, Phosphor Bronze, Custom Materials |
| Wire Diameter | Customized according to drawings or samples |
| Outside Diameter | Customized |
| Free Length | Customized |
| Hook Type | Machine Hook, Extended Hook, Side Hook, German Hook, Custom Hook |
| Surface Treatment | Zinc Plating, Nickel Plating, Black Oxide, Passivation, Custom Finish |
| Spring Force | Customized according to load requirements |
| Application | Machinery, Electronics, Automotive, Hardware, Tools, Appliances |
| Production Type | Sample Development, OEM Production, Bulk Manufacturing |
| Customization | Available based on drawings, samples, or technical specifications |
Why Choose Hunt Spring?
Hunt Spring specializes in the production of tension springs, compression springs, torsion springs, flat wire springs, and custom-shaped springs. We understand that a spring is a functional component that directly affects product performance, assembly stability, and long-term reliability.
Our team provides one-stop custom spring support from requirement confirmation to sample production and mass manufacturing. Customers can send drawings, samples, or detailed specifications, and we will help evaluate material, size, hook type, load requirement, and production feasibility.
With factory-based production, flexible customization, and strict quality inspection, Hunt Spring aims to be a reliable industrial tension spring factory for global B2B buyers.
Custom Tension Spring Manufacturing Process
Requirement Confirmation
We review your spring drawing, sample, or technical request, including material, size, hook type, spring force, tolerance, surface treatment, and application environment.
Spring Design and Sample Production
For customized projects, we can produce samples before mass production to confirm dimensions, installation fit, and working performance.
Mass Production
After sample approval, bulk production is arranged according to confirmed specifications to ensure consistency across each batch.
Quality Inspection
Before shipment, we inspect key dimensions, surface quality, hook structure, elasticity, and overall spring performance to help ensure reliable product quality.
FAQ
Q1: Can you manufacture custom tension springs according to my drawing?
Yes. We can produce custom tension springs according to your drawings, samples, or detailed technical requirements.
Q2: What is the difference between a tension spring and an extension spring?
A tension spring and an extension spring usually refer to the same type of spring. It is designed to stretch under pulling force and return to its original length after the force is released.
Q3: What hook types can you produce?
We can produce machine hooks, extended hooks, side hooks, German hooks, and other customized hook designs according to your application needs.
Q4: What materials are available for tension springs?
Common materials include stainless steel, carbon steel, spring steel, music wire, phosphor bronze, and other custom materials. The right material depends on strength, corrosion resistance, elasticity, and working environment.
Q5: Do you support OEM tension spring orders?
Yes. Hunt Spring supports OEM and customized extension spring orders for machinery, electronics, automotive parts, hardware, tools, and other industrial products.
Q6: What information should I provide for a quotation?
To get an accurate quotation, please provide spring type, material, wire diameter, outside diameter, free length, hook type, quantity, surface treatment, drawing or sample, and application details.
Request a Custom Tension Spring Quote
If you are looking for a reliable tension spring manufacturer for industrial, electronic, automotive, hardware, or mechanical applications, contact Hunt Spring with your drawings or samples. Our team will help evaluate your requirements and provide a suitable custom spring manufacturing solution.
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