HEFTY™ Heavy-Duty Die Springs
HEFTY™ die springs are ultra-high-strength compression springs engineered specifically for metal stamping dies, injection molds, and severe cyclic tooling environments requiring maximum load capacity and fatigue longevity.
Key Engineering Features
High-Strength Alloy
Manufactured from premium chrome-vanadium (50CrV4) and chrome-silicon (55CrSi) spring steel for superior yield resistance.
Extended Fatigue Life
Precision hot-presetting and dual-stage shot peening dramatically elevate dynamic fatigue life beyond 10,000,000 cycles.
Standard & Custom Sizes
Full spectrum of metric and imperial wire diameters and free lengths stocked for rapid tooling retrofits.
International Standards
Engineered to ISO 10243, JIS B5012, and NAAMS global tooling and die assembly standards.
Require HEFTY™ Heavy-Duty Die Springs?
Contact our engineering specialists for dimension cross-referencing, CAD models, and rapid prototype delivery within 1–3 business days.