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Compression Spring
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Flat Springs And Flat Parts
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Compression Spring Exporters

Compression springs are one of the most common and fundamental types of helical springs. Their primary function is to resist and absorb axial compressive forces, meaning they provide a counteracting pushback when squeezed along their central axis.

How They Work:
When an external force compresses the spring from both ends, the spring shortens, absorbing and storing energy (potential energy). Once the external force is removed or reduced, the spring releases the stored energy and attempts to return to its original shape and length, generating a rebound force.

Key Features:
Shape: Typically cylindrical, though variants like conical or barrel-shaped designs exist for specific needs.
Coils: In their free (unloaded) state, there is space between each coil.
End Structures: The ends are often ground flat to ensure the spring stands upright and distributes force evenly.

Common Applications:
Compression springs are extremely versatile and can be found almost everywhere, such as in:
Everyday items: Ballpoint pens (for clicking mechanisms), automobile suspension systems, toys, washing machines.
Industrial applications: Valves, molds, heavy machinery, shock absorbers.
Electronics: Smartphone buttons, battery contacts.
In summary, a compression spring is a fundamental mechanical component that stores energy by being compressed and provides a rebound force, making it an essential part of many devices and products.

Project Size Custom made
Material Spring steel (SWC), piano wire (SWP), stainless steel (SUS), mild steel, phosphor bronze, 60Si2Mn, 55CrSi, T9A, A3, titanium alloy, nickel-plated wire, galvanized wire, tinned wire, enameled wire
Surface treatment Galvanizing, nickel plating, anodizing, black oxidation, electrophoresis, power coating, gold plating, silver plating, tin plating, paint, Chorme, phosphate, Dacromet, oiling, copper plating, sandblasting, passivation, polishing, etc.
Package PE bags, cartons, pallets, customized according to customer needs
Application Automotive hardware accessories, electrical equipment, electronic products, medical equipment, fitness equipment parts, industrial equipment, mechanical parts, office equipment, children's toys, etc.
Experience Heli Spring has 31 years of experience in spring and stamping manufacturing
  • Compression Spring

    Compression Spring

    ×
    Compression Spring

    Compression Spring

    Project Size Custom made
    Material Spring steel (SWC), piano wire (SWP), stainless steel (SUS), mild steel, phosphor bronze, 60Si2Mn, 55CrSi, T9A, A3, titanium alloy, nickel-plated wire, galvanized wire, tinned wire, enameled wire
    Surface treatment Galvanizing, nickel plating, anodizing, black oxidation, electrophoresis, power coating, gold plating, silver plating, tin plating, paint, Chorme, phosphate, Dacromet, oiling, copper plating, sandblasting, passivation, polishing, etc.
    Package PE bags, cartons, pallets, customized according to customer needs
    Application Automotive hardware accessories, electrical equipment, electronic products, medical equipment, fitness equipment parts, industrial equipment, mechanical parts, office equipment, children's toys, etc.
    Experience Heli Spring has 31 years of experience in spring and stamping manufacturing
    Contact Us
    Share:
  • Compression Spring

    Compression Spring

    ×
    Compression Spring

    Compression Spring

    Project Size Custom made
    Material Spring steel (SWC), piano wire (SWP), stainless steel (SUS), mild steel, phosphor bronze, 60Si2Mn, 55CrSi, T9A, A3, titanium alloy, nickel-plated wire, galvanized wire, tinned wire, enameled wire
    Surface treatment Galvanizing, nickel plating, anodizing, black oxidation, electrophoresis, power coating, gold plating, silver plating, tin plating, paint, Chorme, phosphate, Dacromet, oiling, copper plating, sandblasting, passivation, polishing, etc.
    Package PE bags, cartons, pallets, customized according to customer needs
    Application Automotive hardware accessories, electrical equipment, electronic products, medical equipment, fitness equipment parts, industrial equipment, mechanical parts, office equipment, children's toys, etc.
    Experience Heli Spring has 31 years of experience in spring and stamping manufacturing
    Contact Us
    Share:
  • Compression Spring

    Compression Spring

    ×
    Compression Spring

    Compression Spring

    Project Size Custom made
    Material Spring steel (SWC), piano wire (SWP), stainless steel (SUS), mild steel, phosphor bronze, 60Si2Mn, 55CrSi, T9A, A3, titanium alloy, nickel-plated wire, galvanized wire, tinned wire, enameled wire
    Surface treatment Galvanizing, nickel plating, anodizing, black oxidation, electrophoresis, power coating, gold plating, silver plating, tin plating, paint, Chorme, phosphate, Dacromet, oiling, copper plating, sandblasting, passivation, polishing, etc.
    Package PE bags, cartons, pallets, customized according to customer needs
    Application Automotive hardware accessories, electrical equipment, electronic products, medical equipment, fitness equipment parts, industrial equipment, mechanical parts, office equipment, children's toys, etc.
    Experience Heli Spring has 31 years of experience in spring and stamping manufacturing
    Contact Us
    Share:
  • Compression Spring

    Compression Spring

    ×
    Compression Spring

    Compression Spring

    Project Size Custom made
    Material Spring steel (SWC), piano wire (SWP), stainless steel (SUS), mild steel, phosphor bronze, 60Si2Mn, 55CrSi, T9A, A3, titanium alloy, nickel-plated wire, galvanized wire, tinned wire, enameled wire
    Surface treatment Galvanizing, nickel plating, anodizing, black oxidation, electrophoresis, power coating, gold plating, silver plating, tin plating, paint, Chorme, phosphate, Dacromet, oiling, copper plating, sandblasting, passivation, polishing, etc.
    Package PE bags, cartons, pallets, customized according to customer needs
    Application Automotive hardware accessories, electrical equipment, electronic products, medical equipment, fitness equipment parts, industrial equipment, mechanical parts, office equipment, children's toys, etc.
    Experience Heli Spring has 31 years of experience in spring and stamping manufacturing
    Contact Us
    Share:
About
Wenzhou Heli Spring Manufacturing Co., Ltd.
Wenzhou Heli Spring Manufacturing Co., Ltd. established in 1992, is a China Compression Spring Manufacturer and Custom Compression Spring Factory. It boasts over 8,000 square meters of standardized factory space and is equipped with over 200 pieces of modern production and testing equipment. Our main products include low-voltage electrical springs, high-voltage electrical springs, pneumatic springs, extension springs, automotive springs, wire-formed springs, and cage springs, which are widely used in various industries, including electrical, automotive, hydraulic, electronic, and mechanical. To accelerate industrial upgrading and market expansion, the company established "Kunshan Heli Spring Manufacturing Co., Ltd." in Kunshan, Jiangsu in 2005, covering 40 mu (approximately 1,000 acres), forming a coordinated manufacturing network for north-south development. Heli Spring is ISO 9001 and IATF16949 certified, and has been awarded numerous honors, including "National High-Tech Enterprise," "Zhejiang Province Science and Technology Enterprise," and "Industry Advanced Enterprise." Leveraging over 30 years of expertise in spring manufacturing, Heli Spring continuously advances traditional manufacturing technology. Combining automated production lines, CNC spring coiling equipment, heat treatment systems, and comprehensive quality control systems, we provide reliable, high-performance spring products and customized solutions for various industries. During the spring manufacturing process, we utilize the latest CNC machining equipment and precision manufacturing techniques, rigorously controlling every production step to ensure dimensional accuracy, consistency, and consistent quality.
Certificate of Honor
  • Product quality customer satisfaction unit
  • CCTV17 channel CCTV broadcast brand
  • AAAA-level unit
  • Governing Unit
  • Excellent Supplier
  • Growth companies
  • Advanced Enterprises in the Industry
  • Excellent Supplier
  • Star Enterprise
  • Excellent demonstration unit
News & Blogs
Compression Spring Industry Knowledge Extension

Common Design Features of Tension Springs

Tension springs are designed to absorb and store energy when pulled or stretched. Several factors influence their design, and understanding these features is essential when choosing the appropriate spring for a given application. Below is a table summarizing the common design features of tension springs:

Design Feature

Description

Wire Material

Tension springs are often made of steel, stainless steel, or alloy steel, depending on their intended use and environment (e.g., corrosion resistance).

Spring Diameter

The diameter of the spring wire is a critical factor in determining the spring's strength and load capacity.

Coil Diameter

This refers to the spring's outer diameter and helps determine how much space the spring occupies when extended.

End Types

Common end types include hooks, loops, or machine eyes. The ends provide secure attachment points for machinery or equipment.

Spring Length

The spring's relaxed length is essential for fitting it into the intended application.

Load Capacity

The spring's load capacity is the maximum force it can withstand before permanently deforming.

Spring Rate (k)

The spring rate indicates the stiffness of the spring, measured in force per unit of extension (e.g., N/mm). A higher rate means a stiffer spring.

Preload

Some tension springs are preloaded, meaning they are stretched slightly during manufacturing to enhance performance.

Corrosion Resistance

Depending on the material used, some tension springs are coated or treated to resist environmental factors such as moisture, chemicals, or heat.

Is the Tension Coil Spring Easy to Install?

Tension coil springs can be somewhat straightforward to install, but their installation process does require attention to detail. There are a few key factors that affect how easy or difficult it is to install a tension coil spring. Below, we break down the main considerations for installation:

1. Preparation of Installation Space

Before installing a tension coil spring, ensure that the space where the spring will be fitted is clean, unobstructed, and large enough to accommodate the spring in both its compressed and extended forms. The clearance is important because a spring under tension requires space to expand without interference.

Measure the dimensions of the area to ensure the spring will fit comfortably. This includes checking both the spring's free length and its extended length.

2. Selecting the Right Spring

It's essential to choose a tension coil spring that matches the application's required load capacity, size, and material. Incorrect selection may result in spring failure or suboptimal performance.

If the spring is too strong, it may not stretch properly and could bring about premature wear. If it is too weak, it may not provide the necessary force. Therefore, an accurate understanding of the spring's role in the system is crucial.

3. Tools Required

To install a tension coil spring, you may need tools such as hooks, pliers, or a spring tool. These tools help securely attach the spring ends to the relevant parts of the system.

In some cases, a spring tension tool may be necessary to safely stretch the spring to its full length without damaging components or injuring the installer.

4. Safety Considerations

Since tension coil springs are designed to store energy, they can be dangerous when improperly installed. Always wear protective equipment, such as gloves and safety glasses, to prevent injury.

Ensure the spring is not overstretched during installation. Overstretching can cause the spring to lose its functionality or break.

5. Attaching the Spring

Attach the spring's ends securely to the corresponding hooks, loops, or eyes in the system. If the spring is to be used in an application such as a door or garage door, ensure that the attachment points are stable and capable of bearing the spring's force.

In some cases, you might need to apply force or a load to stretch the spring into place, which will require additional tools or assistance from another person.