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What is Compression Spring？

Compression springs are open-coil helical springs designed to resist axial compressive forces. They are the most widely used type of metal spring, found in everything from industrial machinery to everyday consumer products. When compressed, these springs store mechanical energy and push back with a restoring force, always seeking to return to their natural length when the load is removed. This unique property makes them indispensable in precision engineering, automotive systems, medical devices, and more.Stainless Steel Compression Springs

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damping spring,carbon steel wire,small size,cylindrical, ground end

damping spring,carbon steel wi···

damping spring,carbon steel wire,small size,cylindrical, ground end

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support spring​​,SUS304,mini size,cylindrical, ground end

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support spring​​,SUS304,mini size,cylindrical, ground end

Read more

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support spring​​,SUS304,small size,cylindrical, ground end

support spring​​,SUS304,smal···

support spring​​,SUS304,small size,cylindrical, ground end

Read more

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support spring,carbon steel wire,medium size,cylindrical, ground end​

support spring,carbon steel wi···

support spring,carbon steel wire,medium size,cylindrical, ground end​

Read more

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switch spring​,SUS304,small size,cylindrical, closed end

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switch spring​,SUS304,small size,cylindrical, closed end

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Multi-Wire Cylindrical Helical···

Multi-Wire Cylindrical Helical Compression Spring

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Multi-Wire Cylindrical Helical Compression Spring

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Compression Springs

Versatile mechanical components that store energy when compressed

Key Advantages

Precision Motion Control

Compression springs deliver consistent resistance, perfect for applications requiring exact force measurements and controlled movements in mechanical systems.

Self-Resetting Mechanism

These springs automatically return to original position when pressure stops, making them essential for latches, switches and safety devices.

Secure Electrical Connections

Maintaining steady contact pressure ensures reliable power transmission in battery compartments and electronic connectors.

Optimized Strength & Weight​

Advanced coiled steel construction provides exceptional force capacity while minimizing weight for space-sensitive applications.

Cost-Effective Solution

Affordable steel materials and simple design offer long-lasting performance with minimal material requirements.

Maintenance-Free Performance

Operating without lubrication or special care, these springs provide reliable performance through millions of cycles.

How They Work

Compression springs operate based on ​Hooke’s Law (F = -kx)​, where the force exerted is proportional to the displacement. When an external load is applied, the spring’s coils compress, storing elastic potential energy. Upon release, the stored energy causes the spring to rebound to its original shape.

Key Characteristics

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​High Load Capacity​ - Resists significant axial forces without permanent deformation
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​Precision Movement - Provides controlled, predictable resistance
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Long Service Life - Engineered for millions of cycles with minimal fatigue

Key Design Factors

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Wire Diameter​ – Thicker wire = higher stiffness
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Coil Diameter​ – Narrower coils = greater force resistance
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Material​ – Music wire, stainless steel, or high-tensile alloys
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Active Coils​ – More coils = softer spring rate

Manufacturing Process

Coiling

Wire is straightened and fed into CNC machinery that forms it into springs with precise dimensions. High-speed cameras ensure accuracy during production.

Stress Relieving

Springs are heated in ovens to solidify their shape and create metallic links, then slowly cooled to remove brittleness caused by coiling.

Finishing

Multiple processes prepare springs for specific applications:

  • Grinding: Flattening ends for better surface contact
  • Strength Peening: Prevents metal fatigue
  • Setting: Compressing to establish final dimensions
  • Coating: Zinc, chromium, or paint for corrosion resistance
  • Packaging: Custom packaging for protection

Upgrade Your Engineering with Precision Springs!​​Contact us today for a free design consultation & quote!

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