Order die springs – precisely load-bearing and immediately available

High-quality die springs for stamping, pressing, and forming processes with constant spring force, long service life, and four load levels – order now with precise dimensions and reliable quality.

Precisely manufactured for maximum load capacity

Four force levels: green, blue, red, yellow

Durable & process-safe in continuous operation

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Technical data

  • ISO-certified company

  • RoHS compliance fulfilled

  • Made in Switzerland

Green

  • Force class: Low

  • Max. spring travel (f max.): approx. 20–25%

  • Application range: low forces, guiding & return movements

  • Cycle rate: low to medium (≤ 50 strokes/min)

  • Characteristics: High fatigue strength at low force level

Blue

  • Force class: Medium

  • Max. spring travel (f max.): approx. 30–35%

  • Application range: standard stamping processes, linear movements

  • Cycle rate: medium to high (80–120 strokes/min)

  • Characteristics: Uniform characteristic curve, universally applicable

Red

  • Force class: High

  • Max. spring travel (f max.): approx. 40–45%

  • Application range: heavy stamping, pressing, and bending operations

  • Cycle rate: high (150–180 strokes/min)

  • Characteristics: Very high dynamic strength

Yellow

  • Force class: Extra high

  • Max. spring travel (f max.): up to 50%

  • Application range: high-performance tools, deep drawing & forming processes

  • Cycle rate: very high (200+ strokes/min)

  • Characteristics: Maximum spring force, extremely wear-resistant

Why die springs from FpP?

FpP supplies die springs with the highest precision, constant spring force, and maximum fatigue strength – ideal for demanding stamping, pressing, and forming processes. When you order a die spring, you benefit from reproducible force values, ISO 10243-compliant quality, and a fast, reliable supply chain.

ISO 10243 quality for precise force ranges and tight tolerances

High-strength materials for long service life at high cycle rates

Load levels green–yellow for optimal design of your tooling requirements

Order die springs quickly & easily – samples, series production, or special sizes

Order die springs now – precise, load-bearing, and immediately available

Receive die springs in ISO 10243 quality for every load level. Send us dimensions, a drawing, or quantity – we deliver quickly, precisely, and reliably for your tooling application.

Frequently Asked Questions

Die springs are high-load compression springs that are primarily used in stamping, pressing, and forming tools. They are used for force transmission, return motion, and energy absorption at high cycle rates.

Our die springs comply with ISO 10243 and meet defined force ranges, tolerances, and load limits, ensuring that you can safely order the right die spring.

Die springs are color-coded:

  • Green = light load

  • Blue = medium load

  • Red = heavy load

  • Yellow = very heavy load

They are manufactured from high-strength, quenched and tempered special steel, optimized for high fatigue strength and minimal relaxation under cyclic load.

The correct selection depends on spring travel, required force, cycle rate, and installation space. Send us drawings or requirements – we will support you with the design.

Yes, however the maximum temperature depends on the material. Standard springs are suitable up to approx. 120–150 °C.

Yes. In addition to standard sizes, we also offer custom-made solutions according to dimensions or drawings.

The service life depends on the load level and stroke length. With correct design, our springs achieve very high cycle numbers in accordance with ISO standard specifications.

Operation at solid height is not recommended. Each spring has a defined maximum spring travel. Overloading drastically reduces service life.

Standard dimensions are delivered at short notice. Custom designs depend on effort. You can always order die springs directly by email.

Yes, we support you with design, selection of the load level, and calculation of spring forces.

In principle yes, however lubrication significantly extends service life, especially at high cycle rates.