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 Continuous-Length Compression Coils
Long compression coils for cut-to-length requirements, with the finished section, end condition and working load specified separately.
- Specification
- Drawing and working requirement
- Dimensions
- Confirmed for the assembly
- Performance
- Specified at working positions
- Quotation
- Submit dimensions and quantity
About Custom Continuous-Length Compression Coils
Continuous-length compression coils provide a long coil form from which shorter sections can be specified. The finished spring is defined by its cut length, active coils and end treatment. A delivered coil length is not a ready-made force specification: shortening the active section changes its stiffness, and the cut ends may need additional attention for seating and handling.
Key Design Characteristics
- Distinguish the supply length from the finished spring length.
- Specify whether cutting, end closing or grinding is required.
- Evaluate load performance on the finished section, not the uncut coil.
Choosing Between Related Designs
A long close-wound extension coil is a different product with a different load mode. For repeat production requiring controlled seating and force, compare a finished compression spring with the proposed cut-to-length route.
Specification and Inspection Review
Clarify who performs cutting and any subsequent treatment. Specify inspection after finishing, including end condition and force at the working length, so supply-coil measurements are not mistaken for finished-part acceptance.
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 |
|---|---|
| Supply form | Required overall length, packaging and permitted joints if relevant. |
| Finished section | Cut length, length tolerance and active-coil requirement. |
| Coil geometry | Wire diameter, body diameter and pitch. |
| End condition | Cut, deburred, closed or ground ends, as the design requires. |
| Working specification | Load at finished working heights, material and operating environment. |
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 material and supplied condition together with any cutting, stress relief or finishing requirements.
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.
Compression Springs
Micro Compression Springs
Small compression springs for restricted installation spaces, specified by actual dimensions and loads at working heights.
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
Continuous-Length Compression Coils FAQ
Will cutting a coil change its spring rate?
Yes. Changing the active coil length changes the finished spring response. Define and check the load requirements for the final cut section.
Are cut ends ready for precision seating?
Not necessarily. Identify the required seat contact and specify any deburring, closing or grinding needed for the finished part.
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.