What is an E-type rail clip?
steel fastener used in railway systems to securely clamp rails to sleepers or baseplates, providing elastic holding power, excellent vibration dampening, and resistance to rail movement (creep/rollover), known for its simple "e" shape and durability in diverse conditions.
| Name | E-type rail clip |
| Material | 60Si2MnA 60Si2CrA 55Si2Mn 38Si7 |
| Hardness | 44-48HRC |
| Fatigue Life | for Dia.18 is 3 millions cycles without breaking |
| for Dia.20 is 5 millions cycles without breaking | |
| Surface | plain (oiled), Oxide black, color painting or according to customer requirement |
| Standard | DIN17221, BS970, GB/T1222 |
Which factors affect the stability of E-type rail clip fasteners?
E-type rail clip stability depends heavily on installation precision (clip gap, displacement), material quality (corrosion resistance, geometry), track conditions (rail corrugations), dynamic train loads (speed, vibration), and the supporting rail pad's properties (stiffness/damping), all influencing clamping force, stress, and fatigue life. Key factors include clip geometry, material strength, proper clamping force, rail pad stiffness, vibration, and track surface quality, with deviations leading to premature failure.
Installation & Geometry
Clip Gap & Displacement: The distance from the clip's rear arch to the tie plate (d) and the vertical displacement (h) significantly affect stress and clamping force, with precise installation crucial.
Geometric Design: Smooth, rounded transitions at sharp corners minimize stress concentrations; defects, corrosion, or scratches act as crack initiation points.
Malposition: Incorrect positioning increases toe load and stress, affecting overall performance.
Material & Environment
Material Choice: High-strength, corrosion-resistant metals are essential for durability in diverse railway environments.
Surface Condition: Cleanliness (free from corrosion, scratches) prevents fatigue crack initiation.
Environmental Factors: Moisture, extreme temperatures, acids, and organic solvents can degrade clips.
What are the application areas of e-rail elastic clip?
E-rail elastic clips are essential components in railway fastening systems, used globally across various rail lines like mainline, metro/urban transit, freight, and heavy haul, securing rails to sleepers (concrete or wood) by preventing movement, maintaining gauge, and absorbing vibration, ensuring safe, durable track performance for all types of train traffic.
- Mixed Traffic Lines: For general passenger and freight movement.
- Urban & Metro Systems: Critical for light rail and subway networks.
- Heavy Haul Lines: Used in demanding environments for heavy freight.
GNEE RAIL offer an extensive range of rail clips with optimum quality, these rail clips are designed with high precision and made up of premium grade spring steel. GNEE has been the largest and most competitive production base of rail clip in China after more than 18 years' rail clip producing experience, and have qualification to tender nationally large and medium scaled rail projects. What's more, our rail clip can be customized according to clients' requirements.