↵Rail Deenik Fastening System
Railway Clip is used to fasten the rails to the underlying base plate together with the concrete sleeper. A variety of different types of heavy-duty clips are used to fasten the rails to the underlying baseplate or Sleeper, one common being the E Clip, which is shaped like a stubby paperclip. Another one is the SKL Tension Clamp, which is also the most widely used type all over the world. Others like KPO Clamp and Nabla Clip, also used in different situations.
Technical Specifications:
| Parameter | DEENIK Standard | DEENIK Heavy Haul | DEENIK High Speed | DEENIK Low Vibration |
|---|---|---|---|---|
| Spring Material | 55Si7 (EN) | 60SiCr7 (EN) | 54SiCr6 (EN) | Special damped alloy |
| Clip Configuration | Dual parallel | Dual parallel | Dual parallel | Dual with polymer inserts |
| Toe Load per Clip | 12±2 kN | 16±2 kN | 10±1.5 kN | 9±1.5 kN |
| Total System Load | 24±3 kN | 32±3 kN | 20±2.5 kN | 18±2.5 kN |
| Deflection Range | 10-14 mm | 8-12 mm | 12-16 mm | 14-18 mm |
| Fatigue Life | 8×10⁶ cycles | 6×10⁶ cycles | 10×10⁶ cycles | 9×10⁶ cycles |
| Installation Angle | 30°±3° | 32°±3° | 28°±3° | 30°±3° |
Dual-Spring Mechanical Architecture
Parallel spring redundancy: Two independent 55Si7 spring clips operating in parallel provide 100% system functionality even if one clip experiences complete failure
Progressive rate engineering: Non-linear spring characteristics deliver low initial installation force (8-10kN) increasing progressively to 25-35kN at maximum service deflection
Three-dimensional force management: Unique clip geometry generates simultaneous vertical toe load, lateral guidance force, and longitudinal creep resistance through angled contact surfaces
Precision Manufacturing & Quality Assurance
- High-performance spring steel: 55Si7 alloy (0.52-0.60%C, 1.50-2.00%Si) provides optimal balance of elastic limit (1200-1400MPa) and fatigue resistance
- Precision cold forming: Multi-stage cold heading and coiling processes achieve dimensional tolerances of ±0.2mm on critical spring surfaces
- Controlled heat treatment: Austempering at 340-380°C produces bainitic microstructure with HRC 46-50 hardness and exceptional fatigue life (>10⁷ cycles)
Gnee Professional supplier
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