Rail E Clip Fastening System
The Railway E-Clip is an elastic spring steel fastening component shaped like the letter "E" that secures rails to concrete or wooden sleepers in railway track systems . Manufactured from high-grade spring steel alloys such as 60Si2MnA, this self-tensioning clip provides continuous clamping force through its distinctive geometric design . The E-Clip operates without threads, relying on elastic deformation to maintain consistent toe load while accommodating thermal expansion, dynamic vibrations, and wheel loads .
Technical Specifications:
| Parameter | Specification | Typical Value/Range |
|---|---|---|
| Material Grade | Spring Steel Alloy | 60Si2MnA / 60Si2CrA / 55Si2Mn |
| Hardness Range | HRC | 42-48 |
| Toe Load (16mm dia.) | kgf | 500-700 |
| Toe Load (18mm dia.) | kgf | 750-900 |
| Toe Load (20mm dia.) | kgf | 1100-1400 |
| Fatigue Life | Cycles | 5 million without fracture |
| Max Spring Force | kN/clip | 14 |
| Applicable Rail Types | UIC, AREMA, BS | UIC54, UIC60, 115RE, 136RE |
Installation & Maintenance Perspective:
- Requires specialized tensioning tools for proper insertion and removal
- No torque adjustment needed due to threadless self-tensioning design
- Visual inspection possible without disassembly for quick condition checks
- Insertion depth of 10-12mm deflection recommended for optimal fatigue life
- Gap between rear arch and shoulder must stay within 3-9mm specification
Maintenance & Operational Perspective
- Provides maximum clamping force of 14 kN per clip for rail security
- Achieves 5 million fatigue cycles without fracture under standard loading
- Critical stress concentration located at inner curvature of rear arch
- Maintains creep resistance and torsional stability for welded track
- Hardness range of HRC 42-48 ensures elastic recovery after deflection
Gnee Professional supplier
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