Railway Fastening System Rail Clips

Railway Fastening System Rail Clips

The role and importance of spring bars in railway tracks. Railway rails are components that support locomotives and the direction of locomotives. Rails are fixed to the sleepers of the ballast bed by elastic fasteners. The buckling parts of elastic fasteners are mainly spring bars, which generate buckling pressure on the rails through bending and twisting deformation of the spring bars, effectively ensuring the reliable connection between rails for a long time, maintaining the integrity of the track as much as possible, and preventing the rails from moving longitudinally and transversely relative to the sleepers.
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Description
Technical Parameters

Definition & Function

Railway elastic clips are the core elastic components of rail fastening systems, designed to:

  • Maintain track gauge (±1mm tolerance)
  • Dampen wheel-rail vibrations (15-25dB attenuation)
  • Accommodate thermal expansion (±5mm displacement allowance)

Railway Fastening System Rail Clips

Major Types & Standards

Type China Standard Key Features Application
SKL Clip TB/T 3065 Twin-leg symmetric, ≥5M cycles fatigue life HSR (350km/h)
Pandrol e-Clip Q/CR 563 Single-leg asymmetric, maintenance-free Metro/Conventional rail
Nabla Clip GB/T 2078 Geometric locking, high lateral resistance Tight curves (R≤300m)
W-type Clip TB/T 3395 Triple-support, 30% cost-saving Freight lines
FC Damped Clip Q/CR 749 Rubber composite layer (≥15dB damping) Urban vibration zones

Railway Fastening System Rail Clips

Application of Rail Clips

Railway Fastening System Rail ClipsRailway Fastening System Rail Clips

 

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