Description
Technical Parameters
Railway Fastening System Components
| Category | Key Components | Function | Common Materials | Examples |
|---|---|---|---|---|
| Clips | Elastic rail clip | Secures rail to baseplate | Spring steel | Pandrol e-clip, SKL-12 |
| Nabla clip | Provides vertical/lateral hold | Alloy steel | Vossloh Nabla | |
| Anchors | Screw spike | Fixes rail to concrete sleeper | Carbon steel | DE-type screw spike |
| Rail bolt | Connects rail to sleeper | Grade 8.8 steel | M24, M30 bolts | |
| Plates | Baseplate | Distributes load to sleeper | Ductile iron | Zw-700 plate |
| Tie plate | Protects wooden sleepers | Manganese steel | AREMA 132RE plate | |
| Insulation | Rail pad | Dampens vibration/noise | Rubber/PU | 10mm rubber pad |
| Insulator | Electrical isolation | Nylon/composite | GFN-12 insulator | |
| Accessories | Rail shoulder | Maintains gauge width | Cast steel | KPO shoulder |
| Tensioning washer | Maintains clip pressure | Spring steel | W-type washer |
Fastening System Types Comparison
| Type | Sleeper Compatibility | Speed Rating | Maintenance Needs | Typical Use Cases |
|---|---|---|---|---|
| E-clip | Concrete | ≤350km/h | Low | High-speed rail |
| KPO | Wooden | ≤160km/h | High | Conventional lines |
| Direct Fixation | Steel/FFU | ≤120km/h | Medium | Urban transit/trams |
| Pandrol Fastclip | Concrete/wood | ≤250km/h | Medium | Mixed traffic lines |
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