Description
Technical Parameters
Key Applications
- High-Speed Rail (HSR):
Used in CRTS III slab tracks to counteract aerodynamic uplift forces at 350 km/h
*Example: Beijing-Shanghai HSR (M24 screws全线应用)*
- Heavy-Haul Lines:
Supports 30t axle loads on Daqin Railway (anti-loosening thread design)
- Special Environments:
Coastal areas: Galvanized screws (≥80μm coating)
Arctic zones: Low-temperature variants (-60°C impact ≥40J)
Performance Advantages (vs. Dog Spikes)
| Parameter | Screw Spikes | Dog Spikes |
|---|---|---|
| Pull-out Resistance | 15-20 kN | 3-5 kN |
| Axle Load Capacity | ≤40t (heavy-haul) | ≤25t (conventional) |
| Maintenance Cycle | >10 years (maintenance-free) | Annual re-tightening required |
| Vibration Attenuation | 45-55% | 20-30% |
| Installation Precision | Gauge deviation ≤±1mm | Gauge deviation ≤±3mm |
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