Applications
Where this spring style fits
Review best-fit uses, assembly constraints and situations where another spring style may be a better choice.
View application guidance →Compression Springs
Custom Micro Compression Springs
Small compression springs for restricted installation spaces, specified by actual dimensions and loads at working heights.
- Specification
- Drawing and working requirement
- Dimensions
- Confirmed for the assembly
- Performance
- Specified at working positions
- Quotation
- Submit dimensions and quantity
About Custom Micro Compression Springs
Micro compression springs perform the same axial spring function as larger coils, but their specification must describe the small assembly and its test conditions clearly. A photograph without scale cannot establish a minimum producible size. Begin with the spring envelope, the available travel and the load needed at installed positions; then identify the dimensional and handling features that matter to the mating parts.
Key Design Characteristics
- Give actual dimensions rather than relying on the label micro.
- Specify the load at working height, including the fixture or seating arrangement.
- Identify handling, separation and packaging needs for small loose parts.
Choosing Between Related Designs
This page addresses size and installation constraints. Choose a conical, barrel or straight-body design separately according to the mating geometry. A small outer diameter alone does not identify the required force or body shape.
Specification and Inspection Review
Define dimensional and force measurement methods before setting acceptance tolerances. Note any restrictions on handling, loose-part entanglement or surface contamination that the assembly process must control.
Product Specification
What to Define for This Spring
Use these product-specific inputs to describe your requirement. Final dimensions, material and performance are confirmed against the drawing and operating conditions.
| Specification item | What to define |
|---|---|
| Wire and body | Wire diameter, outside diameter and required internal clearance. |
| Free and working height | Unloaded height, installed heights and travel limit. |
| Load acceptance | Force and tolerance at each stated height. |
| End form | Seat contact, end-coil geometry and any grinding requirement. |
| Environment and handling | Material, temperature, cleanliness and packaging requirements. |
Next Design Decisions
Next Steps for Your Spring Design
Once the spring style is selected, confirm how it works in the assembly, which material suits the environment, how it will be manufactured and which dimensions and performance points should be controlled on the drawing.
Materials
Choose the material for the environment
Review wire grade and condition against small-section forming, corrosion and the working load; final material availability is confirmed during quotation.
Compare spring materials →Manufacturing
Plan prototype and production
Review forming, heat treatment, secondary operations, inspection and the path from first samples to repeat production.
View manufacturing capabilities →Engineering Data
Use the engineering guide for design support
Use the engineering library to review materials, sizing considerations and applicable standards for the custom design.
Open Spring Engineering Guide →Material Direction
Common Material Families to Review
The links below are selection guides, not a claim that every grade is suitable for every size or load.
Related Spring Design Guides
Review the design and measurement requirements for this spring family.
Compare Designs
Related Spring Products
Use these alternatives when the available space, connection style, travel or force direction changes.
Compression Springs
Cylindrical Compression Springs
A straight, constant-diameter coil for predictable axial force where the spring works inside a bore, around a guide, or between two flat seats.
Torsion Springs
Micro Torsion Springs
Small torsion springs defined by coil clearance, precise leg locations and torque at installed angular positions.
Compression Springs
Conical Compression Springs
A tapered compression spring for assemblies that need a changing diameter, improved stability, or a lower compressed package than a conventional straight coil can provide.
Product Questions
Micro Compression Springs FAQ
What information defines a micro spring?
Provide wire diameter, body diameter, free height and load at the installed heights. The term micro by itself is not a dimensional specification.
Can a photograph be used to specify the size?
Use a drawing or measured dimensions. A photograph may help explain the arrangement, but perspective and lack of scale prevent reliable sizing from the image alone.
RFQ
Send the Working Requirement
A drawing is ideal. If you do not have one yet, provide the dimensions, load or torque, travel, environment and expected quantity that matter in the assembly.
CustomSprings Engineering Catalog
Request This Spring
Send your dimensions, quantity and drawing for engineering review.