Die Springs
Die springs are high-performance compression springs specifically designed for mold applications, featuring high load capacity, long service life, and stability. They are primarily used in ejection, stripping, and pressure mechanisms for stamping, injection molds, etc.
- Benefits of Die Springs vs Standard Compression Springs
| Parameter | Die Springs | Standard Compression Springs |
| Material | Chrome silicon alloy steel (e.g., 50CrV) | Carbon steel or stainless steel |
| Life Cycle | 1 million+ cycles (high endurance) | Typically 100,000-500,000 cycles |
| Load Capacity | High (30-50% higher load for same size) | Relatively lower |
| Temp. Range | -30°C to +150°C (special models up to 250°C) | -20°C to +120°C |
| Color Coding | International color standards (e.g., red=heavy load) | Usually no color coding |
- Main Types (ISO Standard Classification)
- Light Duty (Yellow): Low load, suitable for small-stroke precision molds
- Medium Duty (Blue): Moderate load, most versatile
- Heavy Duty (Red): High load, for large stamping dies
- Extra Heavy Duty (Green/Brown): Extreme loads, specialized for automotive dies
- Key Performance Parameters
- Spring Rate (k): N/mm or kgf/mm
- Initial Tension: Preload retention force
- Maximum Deflection: Typically 40-50% of free length (30% for extra-long life types)
- Fatigue Life: Grades of 500K/1M/2M cycles
Shuangyuan is the earliest die spring manufacturer in China.
We export our die spring also called mould spring East Asia and Australia and New Zealand etc.
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