Compression springs are helical springs designed to bear axial compressive force, mainly used for energy storage, resetting, shock absorption and load bearing.

1. Automotive & Transportation

Suspension systems: Support vehicle body and absorb road vibration.

Engine valves: Control opening and closing of engine valves under high temperature and frequent movement.

Clutches and gearboxes: Assist power transmission and gear shifting reset.

Brake systems: Reset brake pedals and cushion brake calipers.

Vehicle seats & door latches: Adjust seat height and reset door hinges and locks.

2. Industrial Machinery & Equipment

Stamping & moulds: Used for material ejection, clamping and unloading.

Valves & pumps: Reset safety valves and check valves to control fluid pressure and flow direction.

Machine tools & automation equipment: Clamp workpieces and cushion guide rails and cylinders.

Household appliances: Vibration reduction for washing machines, door latches for refrigerators and microwave ovens.

3. Electronics & Precision Instruments

Consumer electronics: SIM card trays, battery contacts and key switches for mobile phones.

Electrical connectors: Ensure stable contact and reduce contact resistance.

Medical devices: Valve components of ventilators and parts of surgical instruments.

Meters & sensors: Pressure gauges, optical lenses and various detecting sensors.

4. Daily Necessities & Furniture

Stationery: Retractable mechanisms of gel pens and energy storage parts of staplers.

Furniture: Support springs for mattresses and sofas, reset parts for cabinet doors and drawers.

Hand tools: Battery contacts of flashlights, positioning structures of utility knives and air pumps.

5. Special Working Conditions

High-temperature environment: Applied to aero-engines, boilers and high-temperature industrial equipment.

Corrosion-resistant environment: Chemical equipment and marine facilities.

Ultra-precision mini types: Minimally invasive medical devices and chip testing probes.

Common Types & Features

Cylindrical compression spring: Most widely used, with stable stiffness for general machinery and home appliances.

Conical compression spring: Space-saving and anti-deflection, suitable for precision instruments.

Barrel/hourglass spring: Variable stiffness, ideal for heavy load and shock absorption.

Rectangular wire spring: High load capacity, commonly used for industrial moulds.

Main Functions

Shock absorption and buffering

Mechanical reset and position control

Load support

Energy storage and release