Compression Springs
Compression load

Compression Springs

For axial load, energy absorption and return force. Diameter, free length, active coils and two working load points form the core specification.

Wire optionsStable loadStainless
DESIGN WINDOW

Typical capability range

Use these values for early selection. Final dimensions, tolerances and loads are confirmed by engineering review and approved samples.

Wire Dia
0.1-20mm
OD
1-200mm
Free Length
2-500mm
Typical use
Widely used in molds, machinery, electronics, automotive industries
ENGINEERING OPTIONS

Materials, forms and quality controls

01

Material options

  • Music wire: high-strength precision compression springs
  • SUS304 / SUS316: corrosion and clean environments
  • 65Mn / 60Si2Mn: general industrial and higher-load uses
02

Forms and processes

  • Open, closed and closed-ground ends
  • Constant or variable pitch and resonance control
  • Cylindrical, barrel and rod / sleeve guided forms
03

Critical inspection

  • Free length, outside / inside diameter and squareness
  • Load at one or two specified heights
  • Solid height, recovery and fatigue life
APPLICATION FIT

Typical applications

Various compression springs, ground or closed ends, suitable for molds and machinery

01

Machinery and dies

Valves, fixtures, dies and automation return.

02

Automotive mechanisms

Seats, switches, latches and controls.

03

Electronics and instruments

Buttons, contacts, isolation and precision loading.

DESIGN NOTES

Engineering notes

Slender springs need buckling and guide-clearance review. Uneven ends or eccentric assembly adds friction and local stress.

Preserve margin above solid height and use an independent hard stop. Repeated coil bind increases load, noise and fatigue risk.

RFQ CHECKLIST

Include with your RFQ

  1. 01 Wire, outside / inside diameter and free length
  2. 02 Total / active coils and end form
  3. 03 Working heights and loads
  4. 04 Minimum height, guidance and life
  5. 05 Material, finish and volume
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FAQ

Common design questions

Why provide two load points?

Two points define working force and rate, reducing ambiguity from free-length or preload variation.

Do compression spring ends always need grinding?

No. Grinding improves support and squareness but adds processing and cost. Select it from mounting needs.