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Custom Stainless Steel Extension Spring with Ring Hooks for Corrosion Resistant Applications
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Custom Stainless Steel Extension Spring with Ring Hooks for Corrosion Resistant Applications
  • name
  • name
  • name

Custom Stainless Steel Extension Spring with Ring Hooks for Corrosion Resistant Applications

Detail Information
Product Description
Detail Information
Place of Origin
CN
Brand Name
METS
Product Name:
Custom Extension Spring With Ring Hooks / Tension Spring
Material:
Stainless Steel (SUS304 / SUS316), Spring Steel, Carbon Steel
End Type / Hook Style:
Swivel Ring Hooks / Extended Loop Ends (with Color Rings)
Surface Treatment:
Polishing, Passivation, Zinc Plated, Color Electro-plating / Anodized Rings
Processing Technology:
CNC Spring Coiling & Assembly
Application:
Industrial Machinery, Electrical Equipment, Fitness Gear, Tensioning Systems
Highlight:

Stainless Steel Extension Spring

,

Custom Hook Geometry Tension Spring

,

Corrosion Resistant Ring Hook Spring

Product Description
Custom Extension Spring | Ring Hook Industrial Spring
The Custom Extension Spring with Ring Hooks is a precision-manufactured mechanical spring designed to provide controlled tensile force when stretched. Featuring securely formed ring hooks at both ends, this industrial extension spring can be easily connected to hooks, pins, brackets, shafts, and other mechanical components, making it a practical solution for a wide range of tension-based applications.
Extension springs are designed to resist pulling forces and return to their original length when the external load is released. The spring body is typically formed from tightly wound spring wire, while the end hooks provide a reliable connection point for installation. Our ring hook extension springs can be engineered with different hook configurations, body dimensions, spring rates, and load characteristics to meet specific application requirements.
We manufacture custom extension springs using high-quality spring materials, including stainless steel, carbon steel, spring steel, and music wire. Material selection can be optimized according to tensile load, fatigue requirements, corrosion resistance, operating temperature, and working environment. Stainless steel options such as SUS304 and SUS316 are suitable for applications requiring enhanced corrosion resistance.
Using precision spring coiling and wire forming equipment, we can accurately control wire diameter, coil diameter, body length, number of coils, hook dimensions, hook orientation, and overall free length. This allows the spring to be manufactured according to customer drawings, CAD files, physical samples, or specific technical requirements.
The Custom Extension Spring is suitable for industrial machinery, automotive components, agricultural equipment, garage doors, hinges, clamps, seating mechanisms, electrical equipment, appliances, and various mechanical assemblies requiring reliable tensile force.
For OEM customers, we provide a complete spring manufacturing service from design review and material selection to prototype production, performance testing, quality inspection, and mass production. Our goal is to deliver consistent, reliable, and application-specific extension springs for demanding industrial environments.
Custom extension spring with ring hooks showing detailed coil structure and hook design
Features
  • Ring Hook Design: The ring-shaped hooks provide convenient attachment points for pins, hooks, shafts, brackets, and other mechanical components.
  • Reliable Tensile Force: The tightly wound spring body generates controlled extension force and returns toward its original length when the external load is released.
  • Precision Spring Forming: Advanced coiling and wire forming processes help maintain consistent spring diameter, body length, hook geometry, and overall dimensions.
  • Custom Hook Geometry: Ring hook diameter, hook orientation, hook opening, hook position, and end configuration can be customized according to installation requirements.
  • High-Strength Materials: Available materials include stainless steel, spring steel, carbon steel, and music wire for different load and durability requirements.
  • Corrosion-Resistant Options: SUS304 and SUS316 stainless steel extension springs can be supplied for outdoor, humid, marine, and other corrosive environments.
  • Excellent Fatigue Performance: Proper material selection, spring design, and controlled manufacturing can help improve performance during repeated extension and compression cycles.
  • OEM / ODM Manufacturing: Custom extension springs can be manufactured according to technical drawings, CAD files, samples, or customer specifications.
Technical Parameters
Parameter Specification
Product Name Custom Extension Spring
Spring Type Extension / Tension Spring
Hook Type Ring Hook / Closed Hook / Customized
Material Stainless Steel / Spring Steel / Carbon Steel / Music Wire
Stainless Steel Grade SUS301 / SUS304 / SUS316
Wire Diameter Approx. 0.1-60 mm, Customized
Outside Diameter Customized
Inside Diameter Customized
Free Length Customized
Body Length Customized
Number of Coils Customized
Hook Diameter Customized
Hook Opening Customized
Hook Orientation Customized
Initial Tension Customized
Working Load Customized
Maximum Extension Customized
Spring Rate Customized
Surface Treatment Polishing / Plating / Coating / Customized
Heat Treatment Available as Required
Manufacturing Process Precision Spring Coiling / Wire Forming
Dimensional Tolerance According to Drawing Requirements
Application Industrial / Automotive / Mechanical / Electrical
Production Volume Prototype to Mass Production
OEM / ODM Available
Technical specifications can be customized according to the spring design, load requirements, working conditions, and customer drawings.
Applications
Industrial Machinery
Custom extension springs are widely used in industrial machinery where controlled tensile force is required. They can be used in tensioning mechanisms, safety systems, covers, clamps, linkages, and mechanical return assemblies.
Automotive Components
Ring hook extension springs can be integrated into automotive mechanisms such as latches, pedals, seat mechanisms, tensioning systems, locking assemblies, and other components requiring reliable pulling force.
Garage Doors and Door Mechanisms
Extension springs are commonly used in door and gate mechanisms where controlled tension is needed to assist opening, closing, or balancing movement.
Agricultural Equipment
Custom tension springs can be used in agricultural machinery, implements, adjustment mechanisms, tensioning devices, and mechanical linkages exposed to demanding working conditions.
Seating and Furniture
Extension springs with ring hooks can be used in furniture mechanisms, seating systems, adjustable components, and other assemblies requiring flexible tensile force.
Clamps and Mechanical Linkages
Ring hook ends allow the spring to be quickly connected to pins, brackets, levers, and clamps, making the spring suitable for various mechanical linkage systems.
Electrical Equipment
Precision extension springs can be used in switches, control mechanisms, electrical equipment, and other devices requiring controlled return or tension force.
Household Appliances
Custom extension springs can be integrated into appliance doors, latches, handles, covers, switches, and other mechanical mechanisms.
Customization
We provide comprehensive custom extension spring manufacturing based on customer drawings, CAD files, samples, or application requirements.
Wire Diameter
Wire diameter can be customized according to required tensile force, spring rate, fatigue performance, and available installation space.
Spring Body Dimensions
The following dimensions can be customized:
  • Outside diameter
  • Inside diameter
  • Free length
  • Body length
  • Number of coils
  • Coil pitch
  • Spring rate
Ring Hook Design
The ring hooks can be customized according to the installation structure, including:
  • Hook inside diameter
  • Hook outside diameter
  • Hook opening
  • Hook thickness
  • Hook orientation
  • Hook position
  • Ring shape
Initial Tension
Initial tension can be controlled according to the required load characteristics and application conditions.
Working Load and Extension
The spring can be designed according to required:
  • Initial tension
  • Working load
  • Maximum extension
  • Working length
  • Spring rate
  • Cycle life
Material Selection
We can recommend suitable materials according to:
  • Required tensile force
  • Fatigue life
  • Corrosion resistance
  • Operating temperature
  • Mechanical strength
  • Installation environment
Surface Treatment
Optional surface treatments include:
  • Polishing
  • Zinc plating
  • Nickel plating
  • Protective coating
  • Passivation
  • Other customized finishes
Prototype to Mass Production
Our development process can include:
  1. Drawing or sample evaluation
  2. Spring design review
  3. Material selection
  4. Prototype production
  5. Load and dimensional testing
  6. Design optimization
  7. Production process setup
  8. Mass production
  9. Final quality inspection
Support and Services
Engineering Support
Our engineering team can review spring drawings and specifications and provide recommendations regarding wire diameter, hook geometry, spring dimensions, material selection, initial tension, and working load.
OEM / ODM Service
We provide customized extension spring manufacturing according to customer drawings, CAD files, physical samples, or application requirements.
Prototype Development
Prototype and small-batch production are available for new projects, allowing customers to verify dimensions, installation compatibility, load performance, and spring behavior.
Material Consultation
We assist customers in selecting suitable spring materials based on tensile load, fatigue requirements, corrosion resistance, operating temperature, and working environment.
Quality Control
Quality inspection may include:
  • Wire diameter inspection
  • Outside diameter inspection
  • Free length inspection
  • Hook diameter inspection
  • Hook opening inspection
  • Hook orientation inspection
  • Initial tension testing
  • Working load testing
  • Spring rate testing
  • Maximum extension testing
  • Surface inspection
  • Material verification
Mass Production Support
After sample approval, stable production processes can be established for recurring orders and high-volume OEM production.
FAQ
1. What is a ring hook extension spring?
A ring hook extension spring is a tension spring with ring-shaped hooks at its ends. The hooks provide attachment points for mechanical components while the spring generates tensile force when extended.
2. Can you manufacture custom extension springs?
Yes. We manufacture custom extension springs according to drawings, CAD files, physical samples, or specific application requirements.
3. What materials are available?
Common materials include stainless steel, spring steel, carbon steel, and music wire. SUS301, SUS304, and SUS316 are available for applications requiring corrosion resistance.
4. Can the ring hooks be customized?
Yes. Hook diameter, opening, orientation, shape, position, and other dimensions can be customized according to the installation requirements.
5. Can you manufacture high-load extension springs?
Yes. High-load extension springs can be designed by optimizing wire diameter, coil geometry, material, spring length, and number of coils according to the required load.
6. What is initial tension?
Initial tension is the force required to begin separating the coils of an extension spring from their normally closed position. It can be specified according to the application requirements.
7. Can you provide stainless steel ring hook springs?
Yes. Stainless steel ring hook extension springs can be manufactured using SUS301, SUS304, SUS316, or other suitable materials.
8. Do you provide OEM and ODM services?
Yes. Our OEM/ODM service covers engineering review, prototype development, sample production, testing, quality inspection, and mass production.
9. Can you manufacture a spring based on an existing sample?
Yes. Customers can provide an existing spring sample for dimensional and structural evaluation, allowing us to develop a suitable production process.
10. What information is required for a quotation?
For an accurate quotation, please provide material, wire diameter, outside diameter, free length, hook dimensions, initial tension, working load, maximum extension, quantity, drawings or samples, and application information when available.
11. What is the MOQ?
MOQ depends on spring design, material, dimensions, and production requirements. Prototype and small-batch orders can be discussed for new projects.
12. How do you ensure consistent spring quality?
We inspect critical parameters such as wire diameter, spring dimensions, hook geometry, free length, initial tension, working load, and spring rate to maintain consistent production quality.
Why Choose Our Custom Extension Springs?
Our Custom Extension Spring with Ring Hooks combines precision spring coiling, wire forming technology, carefully selected materials, and comprehensive quality control. The ring hook design provides convenient installation while the customized spring geometry allows the component to meet specific load, extension, and space requirements.
Whether you need a ring hook extension spring, high-load tension spring, stainless steel extension spring, industrial extension spring, or custom OEM spring, we can provide a reliable solution from prototype development to high-volume production.
Tags: 

metal stamping mould,  

precision metal stamping,  

sheet metal die components

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Products
PRODUCTS DETAILS
Products

Metal Stamping Dies

Sheet Metal Progressive Die

Sheet Metal Bending Dies

Metal Stamping Parts

Brass Stamping Parts

Stator Core Laminations

Terminal Block Parts

Deep Drawing Die

Metal Forming Dies

Automotive Stamping Dies

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Spring
Custom Stainless Steel Extension Spring with Ring Hooks for Corrosion Resistant Applications
  • name
  • name
  • name
Custom Stainless Steel Extension Spring with Ring Hooks for Corrosion Resistant Applications
Detail Information
Product Description
Detail Information
Place of Origin
CN
Brand Name
METS
Product Name:
Custom Extension Spring With Ring Hooks / Tension Spring
Material:
Stainless Steel (SUS304 / SUS316), Spring Steel, Carbon Steel
End Type / Hook Style:
Swivel Ring Hooks / Extended Loop Ends (with Color Rings)
Surface Treatment:
Polishing, Passivation, Zinc Plated, Color Electro-plating / Anodized Rings
Processing Technology:
CNC Spring Coiling & Assembly
Application:
Industrial Machinery, Electrical Equipment, Fitness Gear, Tensioning Systems
Highlight

Stainless Steel Extension Spring

,

Custom Hook Geometry Tension Spring

,

Corrosion Resistant Ring Hook Spring

Product Description
Custom Extension Spring | Ring Hook Industrial Spring
The Custom Extension Spring with Ring Hooks is a precision-manufactured mechanical spring designed to provide controlled tensile force when stretched. Featuring securely formed ring hooks at both ends, this industrial extension spring can be easily connected to hooks, pins, brackets, shafts, and other mechanical components, making it a practical solution for a wide range of tension-based applications.
Extension springs are designed to resist pulling forces and return to their original length when the external load is released. The spring body is typically formed from tightly wound spring wire, while the end hooks provide a reliable connection point for installation. Our ring hook extension springs can be engineered with different hook configurations, body dimensions, spring rates, and load characteristics to meet specific application requirements.
We manufacture custom extension springs using high-quality spring materials, including stainless steel, carbon steel, spring steel, and music wire. Material selection can be optimized according to tensile load, fatigue requirements, corrosion resistance, operating temperature, and working environment. Stainless steel options such as SUS304 and SUS316 are suitable for applications requiring enhanced corrosion resistance.
Using precision spring coiling and wire forming equipment, we can accurately control wire diameter, coil diameter, body length, number of coils, hook dimensions, hook orientation, and overall free length. This allows the spring to be manufactured according to customer drawings, CAD files, physical samples, or specific technical requirements.
The Custom Extension Spring is suitable for industrial machinery, automotive components, agricultural equipment, garage doors, hinges, clamps, seating mechanisms, electrical equipment, appliances, and various mechanical assemblies requiring reliable tensile force.
For OEM customers, we provide a complete spring manufacturing service from design review and material selection to prototype production, performance testing, quality inspection, and mass production. Our goal is to deliver consistent, reliable, and application-specific extension springs for demanding industrial environments.
Custom extension spring with ring hooks showing detailed coil structure and hook design
Features
  • Ring Hook Design: The ring-shaped hooks provide convenient attachment points for pins, hooks, shafts, brackets, and other mechanical components.
  • Reliable Tensile Force: The tightly wound spring body generates controlled extension force and returns toward its original length when the external load is released.
  • Precision Spring Forming: Advanced coiling and wire forming processes help maintain consistent spring diameter, body length, hook geometry, and overall dimensions.
  • Custom Hook Geometry: Ring hook diameter, hook orientation, hook opening, hook position, and end configuration can be customized according to installation requirements.
  • High-Strength Materials: Available materials include stainless steel, spring steel, carbon steel, and music wire for different load and durability requirements.
  • Corrosion-Resistant Options: SUS304 and SUS316 stainless steel extension springs can be supplied for outdoor, humid, marine, and other corrosive environments.
  • Excellent Fatigue Performance: Proper material selection, spring design, and controlled manufacturing can help improve performance during repeated extension and compression cycles.
  • OEM / ODM Manufacturing: Custom extension springs can be manufactured according to technical drawings, CAD files, samples, or customer specifications.
Technical Parameters
Parameter Specification
Product Name Custom Extension Spring
Spring Type Extension / Tension Spring
Hook Type Ring Hook / Closed Hook / Customized
Material Stainless Steel / Spring Steel / Carbon Steel / Music Wire
Stainless Steel Grade SUS301 / SUS304 / SUS316
Wire Diameter Approx. 0.1-60 mm, Customized
Outside Diameter Customized
Inside Diameter Customized
Free Length Customized
Body Length Customized
Number of Coils Customized
Hook Diameter Customized
Hook Opening Customized
Hook Orientation Customized
Initial Tension Customized
Working Load Customized
Maximum Extension Customized
Spring Rate Customized
Surface Treatment Polishing / Plating / Coating / Customized
Heat Treatment Available as Required
Manufacturing Process Precision Spring Coiling / Wire Forming
Dimensional Tolerance According to Drawing Requirements
Application Industrial / Automotive / Mechanical / Electrical
Production Volume Prototype to Mass Production
OEM / ODM Available
Technical specifications can be customized according to the spring design, load requirements, working conditions, and customer drawings.
Applications
Industrial Machinery
Custom extension springs are widely used in industrial machinery where controlled tensile force is required. They can be used in tensioning mechanisms, safety systems, covers, clamps, linkages, and mechanical return assemblies.
Automotive Components
Ring hook extension springs can be integrated into automotive mechanisms such as latches, pedals, seat mechanisms, tensioning systems, locking assemblies, and other components requiring reliable pulling force.
Garage Doors and Door Mechanisms
Extension springs are commonly used in door and gate mechanisms where controlled tension is needed to assist opening, closing, or balancing movement.
Agricultural Equipment
Custom tension springs can be used in agricultural machinery, implements, adjustment mechanisms, tensioning devices, and mechanical linkages exposed to demanding working conditions.
Seating and Furniture
Extension springs with ring hooks can be used in furniture mechanisms, seating systems, adjustable components, and other assemblies requiring flexible tensile force.
Clamps and Mechanical Linkages
Ring hook ends allow the spring to be quickly connected to pins, brackets, levers, and clamps, making the spring suitable for various mechanical linkage systems.
Electrical Equipment
Precision extension springs can be used in switches, control mechanisms, electrical equipment, and other devices requiring controlled return or tension force.
Household Appliances
Custom extension springs can be integrated into appliance doors, latches, handles, covers, switches, and other mechanical mechanisms.
Customization
We provide comprehensive custom extension spring manufacturing based on customer drawings, CAD files, samples, or application requirements.
Wire Diameter
Wire diameter can be customized according to required tensile force, spring rate, fatigue performance, and available installation space.
Spring Body Dimensions
The following dimensions can be customized:
  • Outside diameter
  • Inside diameter
  • Free length
  • Body length
  • Number of coils
  • Coil pitch
  • Spring rate
Ring Hook Design
The ring hooks can be customized according to the installation structure, including:
  • Hook inside diameter
  • Hook outside diameter
  • Hook opening
  • Hook thickness
  • Hook orientation
  • Hook position
  • Ring shape
Initial Tension
Initial tension can be controlled according to the required load characteristics and application conditions.
Working Load and Extension
The spring can be designed according to required:
  • Initial tension
  • Working load
  • Maximum extension
  • Working length
  • Spring rate
  • Cycle life
Material Selection
We can recommend suitable materials according to:
  • Required tensile force
  • Fatigue life
  • Corrosion resistance
  • Operating temperature
  • Mechanical strength
  • Installation environment
Surface Treatment
Optional surface treatments include:
  • Polishing
  • Zinc plating
  • Nickel plating
  • Protective coating
  • Passivation
  • Other customized finishes
Prototype to Mass Production
Our development process can include:
  1. Drawing or sample evaluation
  2. Spring design review
  3. Material selection
  4. Prototype production
  5. Load and dimensional testing
  6. Design optimization
  7. Production process setup
  8. Mass production
  9. Final quality inspection
Support and Services
Engineering Support
Our engineering team can review spring drawings and specifications and provide recommendations regarding wire diameter, hook geometry, spring dimensions, material selection, initial tension, and working load.
OEM / ODM Service
We provide customized extension spring manufacturing according to customer drawings, CAD files, physical samples, or application requirements.
Prototype Development
Prototype and small-batch production are available for new projects, allowing customers to verify dimensions, installation compatibility, load performance, and spring behavior.
Material Consultation
We assist customers in selecting suitable spring materials based on tensile load, fatigue requirements, corrosion resistance, operating temperature, and working environment.
Quality Control
Quality inspection may include:
  • Wire diameter inspection
  • Outside diameter inspection
  • Free length inspection
  • Hook diameter inspection
  • Hook opening inspection
  • Hook orientation inspection
  • Initial tension testing
  • Working load testing
  • Spring rate testing
  • Maximum extension testing
  • Surface inspection
  • Material verification
Mass Production Support
After sample approval, stable production processes can be established for recurring orders and high-volume OEM production.
FAQ
1. What is a ring hook extension spring?
A ring hook extension spring is a tension spring with ring-shaped hooks at its ends. The hooks provide attachment points for mechanical components while the spring generates tensile force when extended.
2. Can you manufacture custom extension springs?
Yes. We manufacture custom extension springs according to drawings, CAD files, physical samples, or specific application requirements.
3. What materials are available?
Common materials include stainless steel, spring steel, carbon steel, and music wire. SUS301, SUS304, and SUS316 are available for applications requiring corrosion resistance.
4. Can the ring hooks be customized?
Yes. Hook diameter, opening, orientation, shape, position, and other dimensions can be customized according to the installation requirements.
5. Can you manufacture high-load extension springs?
Yes. High-load extension springs can be designed by optimizing wire diameter, coil geometry, material, spring length, and number of coils according to the required load.
6. What is initial tension?
Initial tension is the force required to begin separating the coils of an extension spring from their normally closed position. It can be specified according to the application requirements.
7. Can you provide stainless steel ring hook springs?
Yes. Stainless steel ring hook extension springs can be manufactured using SUS301, SUS304, SUS316, or other suitable materials.
8. Do you provide OEM and ODM services?
Yes. Our OEM/ODM service covers engineering review, prototype development, sample production, testing, quality inspection, and mass production.
9. Can you manufacture a spring based on an existing sample?
Yes. Customers can provide an existing spring sample for dimensional and structural evaluation, allowing us to develop a suitable production process.
10. What information is required for a quotation?
For an accurate quotation, please provide material, wire diameter, outside diameter, free length, hook dimensions, initial tension, working load, maximum extension, quantity, drawings or samples, and application information when available.
11. What is the MOQ?
MOQ depends on spring design, material, dimensions, and production requirements. Prototype and small-batch orders can be discussed for new projects.
12. How do you ensure consistent spring quality?
We inspect critical parameters such as wire diameter, spring dimensions, hook geometry, free length, initial tension, working load, and spring rate to maintain consistent production quality.
Why Choose Our Custom Extension Springs?
Our Custom Extension Spring with Ring Hooks combines precision spring coiling, wire forming technology, carefully selected materials, and comprehensive quality control. The ring hook design provides convenient installation while the customized spring geometry allows the component to meet specific load, extension, and space requirements.
Whether you need a ring hook extension spring, high-load tension spring, stainless steel extension spring, industrial extension spring, or custom OEM spring, we can provide a reliable solution from prototype development to high-volume production.
Tags: 

metal stamping mould,

precision metal stamping,

sheet metal die components

Xiamen METS Industry & Trade Co., Ltd
102，No.42， Xibin Road,Xinglin，Jimei district,Xiamen,China,361022
Tel: 008613860452810
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