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Extension Spring with Wire Form | Precision Tension Control, Custom Shape Design, Durable Surface Finish
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Extension Spring with Wire Form | Precision Tension Control, Custom Shape Design, Durable Surface Finish
  • name
  • name
  • name
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Extension Spring with Wire Form | Precision Tension Control, Custom Shape Design, Durable Surface Finish

Detail Information
Product Description
Detail Information
Spring Type:
Extension Spring With Wire Form
Wire Diameter:
Spring Wire Thickness
Initial Tension:
Custom
Spring Rate:
Custom
End Type / Wire Form:
Machine Hook, Crossover, Custom Shape
Material:
Music Wire, SUS304, 65Mn
Surface Treatment:
Zinc, Nickel, Black Oxide, Custom
Color Marking:
Red / Blue / Custom
Highlight:

extension spring with wire form

,

precision tension control spring

,

custom shape design spring

Product Description
Our Extension Springs with Wire Form are precision-engineered mechanical components developed to deliver controlled tensile force, consistent load performance, and dependable return motion across a wide range of industrial and commercial applications. Designed for applications where reliable tension and secure attachment are critical, these springs go beyond standard extension spring designs by incorporating custom wire-formed end configurations that enable flexible installation and seamless integration into complex or space-restricted assemblies.
Each extension spring is manufactured to exact customer specifications, ensuring accurate initial tension, stable spring rate, and excellent fatigue resistance, even under repeated extension and high-cycle operation. The wire-formed ends can be customized into a variety of configurations—such as hooks, loops, offsets, double bends, or application-specific geometries—allowing precise alignment, secure mounting, and improved load distribution. This design flexibility helps reduce stress at connection points, enhancing overall durability and operational reliability.
To further support long service life, our extension springs are available with durable surface treatments, including plating, coating, or passivation, which provide effective protection against corrosion, wear, vibration, and harsh environmental conditions. Combined with carefully selected materials and controlled manufacturing processes, these finishes ensure consistent performance in both indoor and outdoor operating environments.
Suitable for use in industrial machinery, automotive systems, consumer products, and electromechanical assemblies, our extension springs are produced in accordance with ISO standards or fully customized non-standard designs based on customer drawings or samples. Throughout production, we apply rigorous quality control procedures, including material verification, dimensional inspection, and load testing, to guarantee stable performance, secure attachment, and long-term reliability in demanding operating conditions.
Extension Spring with Wire Form | Precision Tension Control, Custom Shape Design, Durable Surface Finish 0
Key Features
  • Precision Tension Control
    Engineered to deliver stable, repeatable extension force throughout the working range, ensuring consistent performance and accurate load response in critical applications.
  • Custom Wire-Formed Ends
    Designed with flexible wire-form configurations—including hooks, loops, bends, and special shapes—to enable secure attachment, simplified installation, and reliable integration into complex or space-constrained assemblies.
  • High Fatigue Resistance
    Optimized for repeated extension cycles and dynamic loading conditions, providing long service life and dependable operation even in high-frequency or continuous-use environments.
  • Durable Surface Finish
    Available with a range of surface treatments such as plating, coating, or passivation to enhance corrosion resistance, reduce wear, and extend service life in harsh or corrosive environments.
  • Wide Material Selection
    Manufactured from various spring steels, stainless steels, and alloy materials to balance strength, corrosion resistance, operating conditions, and cost-effectiveness.
  • ISO Standard or Custom Designs
    Produced according to ISO standards or fully customized non-standard specifications based on customer drawings, samples, or application requirements.
  • Consistent Quality Assurance
    Ensured through strict inspection and testing procedures, including dimensional checks, load testing, and fatigue evaluation, guaranteeing reliable and repeatable performance in every batch.
Technical Specifications
Parameter Specification / Range Notes
Spring Type Extension Spring with Wire Form Custom end shapes available
Wire Diameter 0.3 - 5.0 mm Based on load requirement
Body Outer Diameter (OD) 5 - 50 mm Custom fit
Body Inner Diameter (ID) 3 - 45 mm Application-specific
Free Length 10 - 300 mm Length without load
Initial Tension Custom Pre-load force
Rated Load 1 - 500 N At specified extension
Spring Rate Custom Load per unit extension
Maximum Extension Custom Controlled to ensure fatigue life
End Type / Wire Form Hook, Loop, Custom Bend Drawing or sample accepted
Fatigue Life 10⁴ - 10⁷ cycles Depends on design and material
Material Music Wire, SUS304, 65Mn, Alloy Steel Selected per application
Surface Treatment Zinc, Nickel, Black Oxide, Coating Corrosion resistance
Standard ISO or Non-Standard Custom specification supported
Applications
Extension springs with wire-formed ends are widely used in applications requiring reliable tensile force and controlled return motion, including:
  • Industrial Equipment: Actuation systems, safety mechanisms, tension control devices
  • Automotive Components: Throttle return springs, seat mechanisms, latches, and doors
  • Electromechanical Assemblies: Switches, connectors, and motion-control components
  • Consumer Products: Appliances, fitness equipment, tools, and furniture systems
  • Custom Assemblies: Applications requiring unique mounting or wire-form geometries
The customizable wire-form ends allow these springs to adapt easily to space constraints and complex attachment points, ensuring secure and efficient operation.
Customization Options
We provide full customization services to meet your exact application requirements:
  • Dimensions: Wire diameter, body diameter, free length, and maximum extension
  • Performance: Initial tension, rated load, and spring rate
  • Wire-Form Design: Custom hooks, loops, bends, offsets, or special shapes
  • Material Selection: Spring steel, stainless steel, or alloy steel
  • Surface Finish: Plating, coating, or passivation for corrosion protection
  • Standards: ISO standard or fully customized non-standard designs
Our engineering team works closely with customers from design validation and prototyping to mass production, ensuring optimal performance and cost efficiency.
Support and Services
  • Engineering Support: Load calculation, spring design optimization, and material guidance
  • Prototyping: Sample production for testing and approval
  • Quality Assurance: Dimensional inspection, load testing, and fatigue validation
  • After-Sales Support: Technical assistance throughout the product lifecycle
Packing and Shipping
  • Packing: Secure packaging to prevent deformation or surface damage; bulk or individual packing available
  • Shipping: Worldwide delivery via air freight, sea freight, or express courier
  • Lead Time: Dependent on design complexity and order quantity; tracking provided for all shipments
Frequently Asked Questions
Can you customize the wire-formed ends of the extension spring?
Yes, wire-formed ends can be fully customized based on drawings, samples, or application requirements.
What materials are available for extension springs?
Common materials include music wire, stainless steel (SUS304), 65Mn, and alloy steel.
Do you provide samples before mass production?
Yes, prototype samples are available for testing and approval before bulk production.
How do you ensure spring fatigue life?
Fatigue life is controlled through proper design, material selection, heat treatment, and load testing.
Can you manufacture non-standard or application-specific designs?
Absolutely. We specialize in fully customized extension springs with wire-formed ends.
Tags: 

metal shelf brackets,  

metal support brackets,  

shelf support brackets

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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

Metal Stamping Mold

PV Cable Clips

Spring
Extension Spring with Wire Form | Precision Tension Control, Custom Shape Design, Durable Surface Finish
  • name
  • name
  • name
  • name
Extension Spring with Wire Form | Precision Tension Control, Custom Shape Design, Durable Surface Finish
Detail Information
Product Description
Detail Information
Spring Type:
Extension Spring With Wire Form
Wire Diameter:
Spring Wire Thickness
Initial Tension:
Custom
Spring Rate:
Custom
End Type / Wire Form:
Machine Hook, Crossover, Custom Shape
Material:
Music Wire, SUS304, 65Mn
Surface Treatment:
Zinc, Nickel, Black Oxide, Custom
Color Marking:
Red / Blue / Custom
Highlight

extension spring with wire form

,

precision tension control spring

,

custom shape design spring

Product Description
Our Extension Springs with Wire Form are precision-engineered mechanical components developed to deliver controlled tensile force, consistent load performance, and dependable return motion across a wide range of industrial and commercial applications. Designed for applications where reliable tension and secure attachment are critical, these springs go beyond standard extension spring designs by incorporating custom wire-formed end configurations that enable flexible installation and seamless integration into complex or space-restricted assemblies.
Each extension spring is manufactured to exact customer specifications, ensuring accurate initial tension, stable spring rate, and excellent fatigue resistance, even under repeated extension and high-cycle operation. The wire-formed ends can be customized into a variety of configurations—such as hooks, loops, offsets, double bends, or application-specific geometries—allowing precise alignment, secure mounting, and improved load distribution. This design flexibility helps reduce stress at connection points, enhancing overall durability and operational reliability.
To further support long service life, our extension springs are available with durable surface treatments, including plating, coating, or passivation, which provide effective protection against corrosion, wear, vibration, and harsh environmental conditions. Combined with carefully selected materials and controlled manufacturing processes, these finishes ensure consistent performance in both indoor and outdoor operating environments.
Suitable for use in industrial machinery, automotive systems, consumer products, and electromechanical assemblies, our extension springs are produced in accordance with ISO standards or fully customized non-standard designs based on customer drawings or samples. Throughout production, we apply rigorous quality control procedures, including material verification, dimensional inspection, and load testing, to guarantee stable performance, secure attachment, and long-term reliability in demanding operating conditions.
Extension Spring with Wire Form | Precision Tension Control, Custom Shape Design, Durable Surface Finish 0
Key Features
  • Precision Tension Control
    Engineered to deliver stable, repeatable extension force throughout the working range, ensuring consistent performance and accurate load response in critical applications.
  • Custom Wire-Formed Ends
    Designed with flexible wire-form configurations—including hooks, loops, bends, and special shapes—to enable secure attachment, simplified installation, and reliable integration into complex or space-constrained assemblies.
  • High Fatigue Resistance
    Optimized for repeated extension cycles and dynamic loading conditions, providing long service life and dependable operation even in high-frequency or continuous-use environments.
  • Durable Surface Finish
    Available with a range of surface treatments such as plating, coating, or passivation to enhance corrosion resistance, reduce wear, and extend service life in harsh or corrosive environments.
  • Wide Material Selection
    Manufactured from various spring steels, stainless steels, and alloy materials to balance strength, corrosion resistance, operating conditions, and cost-effectiveness.
  • ISO Standard or Custom Designs
    Produced according to ISO standards or fully customized non-standard specifications based on customer drawings, samples, or application requirements.
  • Consistent Quality Assurance
    Ensured through strict inspection and testing procedures, including dimensional checks, load testing, and fatigue evaluation, guaranteeing reliable and repeatable performance in every batch.
Technical Specifications
Parameter Specification / Range Notes
Spring Type Extension Spring with Wire Form Custom end shapes available
Wire Diameter 0.3 - 5.0 mm Based on load requirement
Body Outer Diameter (OD) 5 - 50 mm Custom fit
Body Inner Diameter (ID) 3 - 45 mm Application-specific
Free Length 10 - 300 mm Length without load
Initial Tension Custom Pre-load force
Rated Load 1 - 500 N At specified extension
Spring Rate Custom Load per unit extension
Maximum Extension Custom Controlled to ensure fatigue life
End Type / Wire Form Hook, Loop, Custom Bend Drawing or sample accepted
Fatigue Life 10⁴ - 10⁷ cycles Depends on design and material
Material Music Wire, SUS304, 65Mn, Alloy Steel Selected per application
Surface Treatment Zinc, Nickel, Black Oxide, Coating Corrosion resistance
Standard ISO or Non-Standard Custom specification supported
Applications
Extension springs with wire-formed ends are widely used in applications requiring reliable tensile force and controlled return motion, including:
  • Industrial Equipment: Actuation systems, safety mechanisms, tension control devices
  • Automotive Components: Throttle return springs, seat mechanisms, latches, and doors
  • Electromechanical Assemblies: Switches, connectors, and motion-control components
  • Consumer Products: Appliances, fitness equipment, tools, and furniture systems
  • Custom Assemblies: Applications requiring unique mounting or wire-form geometries
The customizable wire-form ends allow these springs to adapt easily to space constraints and complex attachment points, ensuring secure and efficient operation.
Customization Options
We provide full customization services to meet your exact application requirements:
  • Dimensions: Wire diameter, body diameter, free length, and maximum extension
  • Performance: Initial tension, rated load, and spring rate
  • Wire-Form Design: Custom hooks, loops, bends, offsets, or special shapes
  • Material Selection: Spring steel, stainless steel, or alloy steel
  • Surface Finish: Plating, coating, or passivation for corrosion protection
  • Standards: ISO standard or fully customized non-standard designs
Our engineering team works closely with customers from design validation and prototyping to mass production, ensuring optimal performance and cost efficiency.
Support and Services
  • Engineering Support: Load calculation, spring design optimization, and material guidance
  • Prototyping: Sample production for testing and approval
  • Quality Assurance: Dimensional inspection, load testing, and fatigue validation
  • After-Sales Support: Technical assistance throughout the product lifecycle
Packing and Shipping
  • Packing: Secure packaging to prevent deformation or surface damage; bulk or individual packing available
  • Shipping: Worldwide delivery via air freight, sea freight, or express courier
  • Lead Time: Dependent on design complexity and order quantity; tracking provided for all shipments
Frequently Asked Questions
Can you customize the wire-formed ends of the extension spring?
Yes, wire-formed ends can be fully customized based on drawings, samples, or application requirements.
What materials are available for extension springs?
Common materials include music wire, stainless steel (SUS304), 65Mn, and alloy steel.
Do you provide samples before mass production?
Yes, prototype samples are available for testing and approval before bulk production.
How do you ensure spring fatigue life?
Fatigue life is controlled through proper design, material selection, heat treatment, and load testing.
Can you manufacture non-standard or application-specific designs?
Absolutely. We specialize in fully customized extension springs with wire-formed ends.
Tags: 

metal shelf brackets,

metal support brackets,

shelf support brackets

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