Description
Technical Parameters
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Rail SKL clip Fastening System
Railway SKL Clips are omega-shaped tension fasteners forged from high-grade spring steel, designed to secure rails to sleepers through screw-down fixation. Their distinctive looped geometry provides precise clamping force while allowing controlled deflection under load. These clips integrate with angled guide plates to form complete fastening assemblies, ensuring gauge retention and longitudinal restraint across diverse track categories from heavy haul to high-speed operations .
Technical Specifications:
| Parameter | SKL12 Specification | SKL15 Specification | SKL21 Specification |
|---|---|---|---|
| Clamping Force | 8-12 kN | ≥7 kN (nominal) | min. 9 kN |
| Bar Diameter | 13 mm | 14 mm | 13.5 mm |
| Material Grade | 38Si7 | 60Si2CrA | Spring steel |
| Fatigue Amplitude | 2.5 mm | 2.5 mm | 2.5 mm |
| Primary Application | High-speed lines | Conventional/high-speed | W14HH systems |
| Standard Compliance | UIC, DIN, BS | EN 13481-2 | DB drawings |
Installation & Maintenance Perspective:
- Works with angled guide plates for lateral rail positioning
- Compatible with removable dowel inserts for damaged sleeper repair
- Functions across plastic, wood, and concrete sleeper types
- Accommodates rail pad stiffness variations from 50-500kN/mm
- Pre-assembles on sleepers for rapid on-site installation
Maintenance & Operational Perspective
- Central loop prevents overloading and plastic deformation of arms
- Maintains ≥7kN clamping force after dynamic loading
- Exhibits dominant vibration modes at 500Hz and 560Hz ranges
- Second-order mode resonance triggered by rail corrugation at 200-350km/h
- Fatigue life exceeds 5 million cycles under standard conditions
Gnee Professional supplier
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