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 →Wire Forms
Custom Wire-Formed Components
Custom 2D and 3D wire parts formed to a drawing when the component needs to locate, retain, connect, guide or support another part rather than behave like a conventional coil spring.
- Typical configurations
- 16
- Wire diameter
- 0.3–4 mm
- Outside diameter
- 6.18–68.92 mm
- Free length
- 36.84–194.54 mm
About Custom Wire-Formed Components
Wire-formed components cover shapes that cannot be described well by spring diameter and free length alone. The functional geometry may include bends in several planes, loops, hooks, offsets and straight sections. The drawing therefore becomes the primary manufacturing specification.
Key Design Characteristics
- Bend radii should suit the wire size and material so forming does not create cracks or uncontrolled springback.
- Datums are needed to control a 3D shape consistently; an overall envelope alone is rarely enough.
- Contact points and mating features should be dimensioned more tightly than non-functional free-space bends.
- The part may need spring action in one local section while the rest primarily provides shape and retention.
What to Specify for a Custom Quote
- Wire diameter and material condition
- 2D drawing or 3D model with bend locations and planes
- Critical datums, contact points and envelope limits
- Any required spring force or deflection at functional sections
- Finish, burr requirements, quantity and packaging orientation
Manufacturing Review
CNC wire forming can produce repeatable multi-bend shapes, but inspection planning matters as much as the forming path. For complex parts, a dedicated checking fixture may be more reliable than measuring every segment independently.
Common Assembly Roles
- Retention and locating features
- Linkages and formed connectors
- Custom brackets or spring-like wire shapes
Product Data
Typical Spring Configurations
Use these data points to compare practical starting dimensions and material options. Final production specifications are confirmed against your drawing and working conditions.
| Model | Wire dia. | OD | ID | Free length | Rate | Material | Coils | Max load |
|---|---|---|---|---|---|---|---|---|
| SW-400-0310-0718-0773 | 4 mm | 30.96 mm | 22.96 mm | 71.83 mm | 32.194 | 304 Stainless Steel | 3.5 | 459.73 |
| SW-200-0379-0886-0792 | 2 mm | 37.92 mm | 33.92 mm | 88.65 mm | 0.533 | Inconel X-750 | 6.4 | 8.49 |
| SW-200-0404-0680-0750 | 2 mm | 40.45 mm | 36.45 mm | 68.05 mm | 0.342 | 301 Stainless Steel | 7.1 | 3.66 |
| SW-400-0297-1661-0742 | 4 mm | 29.7 mm | 21.7 mm | 166.06 mm | 19.253 | Beryllium Copper (QBe2) | 4.7 | 746.43 |
| SW-050-0062-1535-0726 | 0.5 mm | 6.18 mm | 5.18 mm | 153.46 mm | 0.503 | 60Si2MnA Spring Steel | 6.7 | 21.48 |
| SW-400-0523-0651-0729 | 4 mm | 52.27 mm | 44.27 mm | 65.12 mm | 4.014 | 60Si2MnA Spring Steel | 5.6 | 52.14 |
| SW-150-0146-1901-0769 | 1.5 mm | 14.63 mm | 11.63 mm | 190.06 mm | 5.511 | 301 Stainless Steel | 3.5 | 290.01 |
| SW-300-0322-1131-0782 | 3 mm | 32.24 mm | 26.24 mm | 113.06 mm | 4.05 | 304 Stainless Steel | 6.9 | 85.7 |
| SW-030-0062-1182-0758 | 0.3 mm | 6.21 mm | 5.61 mm | 118.23 mm | 0.035 | 316 Stainless Steel | 9.6 | 0.81 |
| SW-400-0306-0368-0786 | 4 mm | 30.63 mm | 22.63 mm | 36.84 mm | 36.537 | 316 Stainless Steel | 3.2 | 368.3 |
| SW-300-0569-1508-0774 | 3 mm | 56.94 mm | 50.94 mm | 150.81 mm | 0.445 | 304 Stainless Steel | 10 | 9.25 |
| SW-200-0287-1945-0767 | 2 mm | 28.72 mm | 24.72 mm | 194.54 mm | 2.071 | Oil-Tempered Spring Wire (SWO) | 4 | 107.19 |
| SW-200-0241-0832-0738 | 2 mm | 24.13 mm | 20.13 mm | 83.23 mm | 1.286 | 301 Stainless Steel | 9.9 | 24.86 |
| SW-100-0181-1764-0739 | 1 mm | 18.09 mm | 16.09 mm | 176.41 mm | 0.213 | 60Si2MnA Spring Steel | 9.3 | 4.61 |
| SW-150-0204-0652-0746 | 1.5 mm | 20.4 mm | 17.4 mm | 65.23 mm | 1.797 | 301 Stainless Steel | 3.6 | 23.8 |
| SW-400-0689-1778-0764 | 4 mm | 68.92 mm | 60.92 mm | 177.82 mm | 1.717 | 301 Stainless Steel | 4.7 | 80.61 |
Rate: N/mm; maximum load: N. Dimensions are in millimeters.
Engineering Data
Typical Dimensions & Design Data
Use these data points to compare geometry, material and working parameters when defining your custom spring. Final values are reviewed and confirmed for the actual assembly before production.
| Configuration | Data type | Key parameters | Material / basis |
|---|---|---|---|
| Engineering Data 01 | Engineering Data |
|
Spring steel / stainless / alloy |
| Engineering Data 02 | Manufacturing Range |
|
Multiple wire materials |
| Engineering Data 03 | Design Input |
|
Per drawing |
| Engineering Data 04 | Manufacturing Range |
|
Multiple spring-wire materials |
Design note: dimensions, force / torque, material, tolerances, fatigue life and compliance are finalized against your drawing and operating conditions during quotation.
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
Carbon steel, stainless steel and spring wire are common starting points. The right choice depends on whether the part needs elastic deflection, corrosion resistance, welding, conductivity or mainly geometric stiffness.
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
Open matching engineering guides
Matching material and wire-diameter pages provide additional design data for material and size selection.
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.
Engineering Support
Spring Engineering Guides
Use these guides to compare material, wire diameter and standard requirements before finalizing the product drawing.
Material data
301 Stainless Steel Wire Forms Engineering Data
5 matching wire-formed components data rows are included in the category.
Wire diameter
2 mm Wire Forms Engineering Data
4 matching wire-formed components data rows are included in the category.
Wire diameter
4 mm Wire Forms Engineering Data
5 matching wire-formed components data rows are included in the category.
Compare Designs
Related Spring Products
Use these alternatives when the available space, connection style, travel or force direction changes.
Wire Forms
Custom-Shaped Springs
A made-to-drawing spring form for mechanisms that need elastic behavior but cannot be served by a standard compression, extension or torsion geometry.
Wire Forms
Wire Clips, Hooks & Rings
Made-to-drawing wire clips, hooks and rings used to retain, hang, connect or locate parts where a standard spring geometry is not required.
Wire Forms
Wire Brackets, Handles & Frames
Custom formed-wire brackets, handles and frames for lightweight support, carrying, guiding and structural functions made directly to the product geometry.
Product Questions
Wire-Formed Components FAQ
Do all wire forms need to act like springs?
No. Some are mostly structural retainers or connectors, while others use controlled elastic deflection in one or more sections. The intended function should be stated on the RFQ.
Is a 3D model enough to quote a wire form?
It helps with geometry, but a 2D drawing is still useful for material, wire size, tolerances, finish and critical dimensions.
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.