Tension Springs | 0.1-60mm Stainless Steel Precision OEM Springs
METS specializes in manufacturing Tension Springs (Extension Springs) with high precision, excellent elasticity, and reliable performance for a wide range of industrial applications. Our 0.1-60mm stainless steel precision OEM springs are designed to provide controlled pulling force, smooth extension movement, and long-lasting mechanical performance under repeated loading conditions.
A tension spring is a helical spring designed to resist pulling forces and return components to their original position after extension. Manufactured with tightly wound coils and customized hook or loop configurations, tension springs provide reliable force control and are widely used in mechanical systems, automotive components, industrial equipment, electronic devices, and automation applications.
Using advanced CNC spring coiling equipment, automatic forming machines, and strict quality control processes, METS produces customized extension springs with accurate dimensions, consistent spring force, and excellent fatigue resistance. We support various materials including stainless steel, carbon steel, music wire, alloy steel, and special spring materials to meet different working environments and performance requirements.
Our engineering team provides complete OEM/ODM spring solutions, including spring design optimization, material selection, tooling development, sample production, performance testing, and mass manufacturing. Whether you need small precision tension springs for electronic devices or heavy-duty extension springs for industrial machinery, METS can provide customized solutions according to your drawings, samples, or technical specifications.
METS tension springs are widely used in automotive systems, industrial machinery, electrical equipment, medical devices, household appliances, agricultural equipment, and automation systems, providing reliable tension force and long service life.
Features
Precision Spring Manufacturing
Advanced CNC spring forming technology ensures accurate dimensions, stable spring force, and consistent production quality.
Wide Wire Diameter Range
Supports customized wire diameters from 0.1mm to 60mm to meet different load requirements and application conditions.
High Elastic Performance
Optimized coil design provides excellent tensile strength, flexibility, and fatigue resistance for repeated extension cycles.
Stainless Steel Corrosion Resistance
Stainless steel materials offer excellent resistance to moisture, chemicals, and harsh environmental conditions.
Customized Hook Design
Various hook and loop configurations are available, including:
- Machine hooks
- Cross hooks
- Extended hooks
- Side hooks
- Custom-shaped hooks
OEM Custom Production
Manufactured according to customer drawings, samples, specifications, and application requirements.
Stable Load Performance
Precise manufacturing ensures consistent spring rate, pulling force, and reliable mechanical performance.
Suitable for Mass Production
Automated production equipment supports high-volume manufacturing with competitive cost and stable quality.
Technical Parameters
| Parameter |
Specification |
| Product Name |
Tension Springs / Extension Springs |
| Manufacturing Process |
CNC Spring Coiling, Wire Forming, Heat Treatment |
| Material Options |
Stainless Steel, Carbon Steel, Music Wire, Alloy Steel |
| Stainless Steel Grade |
SUS304, SUS316, SUS301 |
| Wire Diameter |
0.1mm - 60mm |
| Spring Type |
Extension Spring, Hook Spring, Custom Tension Spring |
| Spring Length |
Customized According to Requirements |
| Outer Diameter |
Customized Design |
| Spring Rate |
Customized According to Load Requirements |
| Load Capacity |
Light Load to Heavy Duty Applications |
| Surface Treatment |
Polishing, Plating, Coating, Passivation |
| Heat Treatment |
Available According to Material Requirements |
| Production Capability |
Prototype, Small Batch, Mass Production |
| Drawing Format |
CAD, PDF, STEP, DWG, DXF |
| Quality Standard |
ISO9001 Quality Management System |
| Inspection Equipment |
Spring Tester, Caliper, Projector, Tensile Testing Equipment |
Applications
Automotive Industry
Tension springs are widely used in automotive systems including brake mechanisms, seat adjustment systems, throttle assemblies, clutch components, door mechanisms, and engine-related applications. Their excellent fatigue resistance ensures reliable operation under continuous vibration and movement.
Industrial Machinery
Heavy-duty extension springs are commonly used in industrial equipment, mechanical devices, production lines, and automation systems where controlled pulling force and repeated motion are required.
Electrical and Electronic Equipment
Precision tension springs are used in switches, connectors, battery contacts, electronic assemblies, and small mechanisms requiring compact size and stable force performance.
Household Appliances
Customized extension springs are applied in washing machines, refrigerators, doors, furniture hardware, and various consumer products requiring reliable tension control.
Medical Equipment
High-precision stainless steel tension springs are suitable for medical instruments and devices requiring corrosion resistance, cleanliness, and accurate force control.
Agricultural Equipment
Heavy-duty tension springs provide reliable operation in agricultural machinery, tools, and outdoor equipment exposed to demanding working conditions.
Robotics and Automation
Precision extension springs are widely used in robotic arms, actuators, sensors, and automation devices requiring repeatable movement and accurate force control.
Customization
METS provides professional OEM/ODM Tension Spring customization services to meet different application requirements.
Custom Spring Design
We manufacture springs based on:
- Customer drawings
- 3D models
- Existing samples
- Load requirements
- Installation dimensions
- Working environment
Our engineers help optimize spring design for better performance, durability, and cost efficiency.
Material Customization
Stainless Steel Springs
Available materials:
Advantages:
- Excellent corrosion resistance
- High durability
- Suitable for outdoor and harsh environments
Carbon Steel Springs
Advantages:
- High strength
- Good elasticity
- Cost-effective
Music Wire Springs
Advantages:
- High tensile strength
- Excellent fatigue resistance
- Suitable for precision applications
Alloy Steel Springs
Advantages:
- Heavy-duty performance
- High load capability
Custom Hook and End Design
Available options:
- English hooks
- German hooks
- Extended hooks
- Double hooks
- Cross hooks
- Custom wire forms
Manufacturing Process Customization
Supported processes:
- CNC Spring Coiling
- Wire Forming
- Heat Treatment
- Grinding
- Surface Treatment
- Testing and Inspection
Surface Treatment Options
Available finishes:
- Polishing
- Zinc Plating
- Nickel Plating
- Black Oxide
- Powder Coating
- Passivation
Production Capability
METS supports:
- Prototype development
- Small batch orders
- Medium-volume production
- Large-scale manufacturing
Support and Services
Engineering Support
Our experienced engineers provide:
- Spring design calculation
- Material selection advice
- Load requirement analysis
- Product optimization
Prototype Development
We support rapid sample production for testing and validation before mass production.
Quality Control
Each spring production process is strictly controlled:
- Raw material inspection
- Wire diameter inspection
- Spring dimension inspection
- Load testing
- Fatigue performance testing
- Final quality inspection
OEM Project Management
Complete project support includes:
- Technical communication
- Sample approval
- Production scheduling
- Quality monitoring
- Shipment coordination
After-Sales Service
METS provides professional technical support and quick response to customer requirements.
Packing and Shipping
Packing
Tension springs are carefully packaged to prevent deformation, corrosion, and surface damage during transportation.
Standard packaging methods include:
- Plastic bags
- PE protective packaging
- Small cartons
- Export cartons
- Wooden cases
Customized packaging solutions are available according to customer requirements.
Shipping Methods
METS provides worldwide delivery options:
- Express Shipping: DHL, FedEx, UPS, TNT
- Air Freight
- Sea Freight
- Railway Transportation
We select suitable shipping solutions based on order quantity, delivery schedule, and destination.
FAQ
Q1: What is a tension spring?
A tension spring, also called an extension spring, is a mechanical spring designed to resist pulling forces and return components to their original position after being extended.
Q2: What materials are available for tension springs?
We manufacture tension springs using stainless steel, carbon steel, music wire, alloy steel, and other customized spring materials.
Q3: What wire diameter can you produce?
Our production range supports wire diameters from 0.1mm to 60mm, depending on spring design and application requirements.
Q4: Can you manufacture custom tension springs?
Yes. METS provides OEM/ODM custom spring manufacturing based on drawings, samples, specifications, and performance requirements.
Q5: What hook types are available?
We can produce various hook designs including machine hooks, extended hooks, cross hooks, side hooks, and customized end configurations.
