As an important part of E-clip fastening system, elastic rail clips are used with concrete railway sleepers to fasten rails on both sides. The rail clips are usually made of forged spring steel, which are manufactured by hot forging process. The forged elastic rail clips are considered to be better than other metal forming processes due to most uniform microstructure.
In high-speed rail, metro, light rail, and industrial railways, elastic rail clips effectively reduce noise and vibrations during train operations due to their high elasticity and toughness, extending the service life of rails and sleepers. They also prevent lateral and longitudinal movement of the tracks, enhancing the overall safety of the track system.
For heavy-duty railways and mining transport lines, elastic rail clips can withstand higher loads, ensuring the rails remain stable under frequent train operations or crane movements. GNEE RAIL's clips are designed considering load distribution and material fatigue characteristics, ensuring long-term stability without loosening or failure.
Major Rail Clip Types
| Name | Rail clip | |||
| Type | E clip (e1809, e2006,e2007,e2009,etc) | |||
| Skl clip (skl1,skl3,skl12,skl14) | ||||
| Or the type by customers' drawings | ||||
| Material | 60Si2MnA | 60Si2CrA | 55Si2Mn | 38Si7 |
| Chemical composition(%) | C:0.56-0.64, Mn:0.60-0.90, Si:1.60-2.00, Cr:≤0.35, P:≤0.03, S:≤0.03 | C:0.56-0.64, Mn:0.40-0.70, Si:1.40-1.80,Cr:0.70-1.00 P:≤0.03, S:≤0.03 | C:0.52-0.60, Mn:0.60-0.90, Si:1.50-2.00,Cr:≤0.35 P:≤0.03, S:≤0.03 | C:0.35-0.42, Mn:0.50-0.80, Si:1.50-1.80, P:≤0.03, S:≤0.03 |
| Hardness | For e clip: 44-48HRC | |||
| For skl clip: 42-47HRC | ||||
| 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, HDG, Zinc Plating... | |||
| Standard refers | DIN17221, BS970, GB/T1222 | |||
Technical requirements of elastic clip fastening system
An ideal elastic fastening system should be able to meet the following requirements:
- Elastic clip fastening system should provide sufficient elasticity to absorb the vibrations and shocks caused by moving loads.
- Elastic clip fastening should have adequate toe load which should not reduce under service.
- Elastic clip fastening should be of "fit and forget" type to require least maintenance.
- Elastic clip fastening should be of the type that it can be used and re-used without losing its properties.
- Elastic clip fastening should have as few parts as possible, which are easy to be manufactured, laid and maintained.
- Elastic clip fastening should be of the type that it cannot be taken out and as such is free from sabotage or theft.
- Elastic clip fastening should be of universal type so that it can be used on wooden, steel or concrete sleepers.
- The last and most important point is elastic clip fastening should be cheap and have long service life.
GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.
Click here to obtain the detailed product catalog of GNEE RAIL.
