Die/Mold
Heavy Duty
Engineered for extreme high-stress environments. Our die and mold springs are manufactured using rectangular wire to provide maximum load capacity in confined spaces. Ideal for stamping presses, plastic injection molding, and heavy industrial machinery requiring exceptional durability.
Technical Specifications
Precision manufacturing parameters for our heavy-duty die and mold springs.
| Parameter | Specification Range | Standard Tolerance |
|---|---|---|
| Outer Diameter (OD) | 8.0 mm - 120.0 mm | Guaranteed to fit specified hole |
| Inner Diameter (ID) | 4.0 mm - 60.0 mm | Guaranteed to fit specified rod |
| Free Length (L0) | 20.0 mm - 300.0 mm | ± 1.0% - ± 2.0% |
| Load Grade Categories | Light (Green), Medium (Blue), Heavy (Red), Extra Heavy (Yellow/Brown) | |
| Wire Profile | Rectangular wire with rounded corners for stress reduction | |
| Material Standard | High-tensile Chrome Silicon Steel (ASTM A401 / SAE 9254) | |
Features & Advantages
Built to withstand the most punishing industrial environments.
Specially shaped wire profile allows more material in the same operating space, delivering significantly higher load capacities than round wire springs.
Every die spring is intensively shot-peened to induce compressive residual stress, dramatically improving fatigue life and preventing premature failure.
Solid-compressed during manufacturing to eliminate length loss during operation, ensuring consistent performance from the very first stroke.
Available in ISO, JIS, and NAAMS standards, with an intuitive color-coding system for quick identification of load ratings on the factory floor.
Heavy Duty Applications
Where standard springs fail, our die springs deliver relentless reliability.
Stamping Presses
Providing massive return forces for metal stamping, punching, and blanking operations.
Injection Molds
Ensuring precise ejector pin return and core movements in plastic injection tooling.
Heavy Machinery
Acting as heavy-duty shock absorbers and tensioning devices in construction equipment.
Industrial Actuators
Supporting high-load mechanical linkages and specialized aerospace components.
Upgrade Your Tooling Performance
Our engineering experts can help you select the exact die spring grade and dimensions for your high-stress applications.