Description
Technical Parameters
Product Overview & Features of Railway Nabla Clips
| Item | Description |
|---|---|
| Product Name | Railway Nabla Clip (also known as ω-Clip or W-type Clip) |
| Standard | Typically conforms to European standards (e.g., EN 13481 series) or specific railway authority specifications. |
| Core Function | To provide a reliable, elastic clamping force that secures the rail foot, ensuring gauge stability and absorbing dynamic forces from passing trains. |
| Material | High-Carbon Spring Steel (e.g., 60Si2Mn, 60CrMo) or similar, offering high fatigue resistance. |
| Surface Treatment | Phosphating (most common, black/grey) or Epoxy Coating (for enhanced corrosion protection, typically green). |
Detailed Technical & Performance Parameters
| Parameter | Specification / Value | Remarks / Standard |
|---|---|---|
| Toe Load (Clamping Force) | 9 - 12 kN (varies by design and standard) | The critical force applied to the rail foot, essential for track stability. |
| Fatigue Performance | Passes 3-5 million cycles at ±5-8 kN dynamic load | Validates long-term durability under traffic. |
| Electrical Resistance | > 10^8 Ω (Per fastening assembly) | Ensures electrical insulation for track circuit signaling. |
| Corrosion Protection | ≥ 500 hours Neutral Salt Spray Test (for phosphated clips) | Validates coating durability. Epoxy coating offers higher resistance. |
| Installation Tool | Hydraulic Nabla Clip Tongs (Manual or Powered) | Specialized tool for efficient and correct installation. |
| Operating Temperature Range | -40°C to +80°C | Suitable fo |
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