Design reference
Made to customer 2D drawing; stamped/formed geometry is inherently custom
Flat Springs & Stampings
Custom Cantilever & Formed Flat Springs
Flat-strip spring elements that flex from a fixed region to provide contact force, retention or return in thin assemblies where round-wire coils would take too much space.
- Manufacturing basis
- Made to drawing
- Wire / thickness
- Thickness 0.1 - 3 mm typical
- Envelope
- N/A (flat/formed geometry per drawing)
- Length / height
- Per drawing
About Custom Cantilever & Formed Flat Springs
Cantilever and formed flat springs use strip geometry to create controlled bending. Their performance depends on active length, width, thickness, bend radii and how the fixed end is supported. Small changes in thickness have a strong effect on stiffness, so material condition and strip tolerance matter.
Key Design Characteristics
- Active cantilever length is a major control on force and deflection.
- Thickness strongly affects stiffness and stress.
- Formed offsets or bends can position the contact point but may add local stress near the active region.
- The fixed end should be supported consistently so the spring does not shift its effective length during use.
What to Specify for a Custom Quote
- Strip thickness, width and material
- Full flat or formed geometry and fixed-end condition
- Contact point and required force at defined deflection
- Maximum permitted deflection and cycle target
- Edge condition, plating or finish, quantity and inspection needs
Manufacturing Review
Stamping, laser cutting and forming can all be viable depending on geometry and volume. Burr direction, bend orientation and grain direction may matter for high-cycle thin parts and should be considered before production tooling.
Common Assembly Roles
- Contact fingers
- Retention tabs
- Thin return or preload features in compact assemblies
Made to Order
How This Product Is Quoted
This category is reviewed from the drawing and working requirement rather than from a fixed public stock list.
Typical material direction
Carbon spring steel, 301/304 stainless, phosphor bronze, beryllium copper
Why there is no fixed table
Flat and cantilever springs are stamping-tool parts; no manufacturer publishes a generic public size table.
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.
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 →Materials
Choose the material for the environment
Stainless spring strip, phosphor bronze and beryllium copper are common where corrosion or conductivity is needed; carbon spring strip can be efficient for purely mechanical functions.
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.
Compare Designs
Related Spring Products
Use these alternatives when the available space, connection style, travel or force direction changes.
Flat Springs & Stampings
Contact, Battery & Grounding Springs
Custom conductive spring contacts for batteries, grounding points and electrical interfaces where the part must maintain contact pressure while carrying current or bonding surfaces.
Flat Springs & Stampings
Snap Domes & Switch Springs
Thin formed spring elements for tactile switches and snap-action controls where force profile, travel and repeatable actuation feel are the primary requirements.
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.
Product Questions
Cantilever & Formed Flat Springs FAQ
Why is thickness tolerance important on a flat spring?
Bending stiffness changes strongly with thickness, so a small thickness change can create a noticeable force change.
Can the spring and electrical contact be one part?
Yes. Copper alloys or plated spring materials can combine mechanical contact force with an electrical path when the current and environment are suitable.
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.