How to Select the Right E Type Rail Elastic Clip ?
Selecting the right E-type rail elastic clip requires a systematic technical assessment, with the primary step being the precise matching of the rail type and foot profile. Different rail specifications feature unique foot dimensions and inclination angles, necessitating complete compatibility between the clip's clamping area and the rail foot surface. For instance, UIC60 rails require a specifically designed clip contour, while 50kg/m rails demand different curvature radii; any mismatch can lead to uneven clamping force distribution or localized stress concentrations.
Operational conditions are core considerations for type selection. For heavy-haul lines with axle loads exceeding 25 tons, priority should be given to heavy-duty clips like E2055 or E2009, which can provide an initial clamping force above 12 kN. For high-speed railways operating over 200 km/h, the focus should be on the clip's fatigue resistance, ensuring a 20mm diameter clip guarantees a 5 million cycle life.
| Model | Diameter | Material | Under Pressure | HRC | Weight |
| E1609 | Ø 16mm | 60Si2MnA | ≥950kg | 44-48 | 0.43kg/pc |
| E1809 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.61kg/pc |
| E1813 | Ø 18mm | 60Si2MnA | ≥950kg | 44-48 | 0.62kg/pc |
| E2001 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2009 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2039 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2007 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2055 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2056 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2063 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
Environmental corrosivity is equally important; coastal areas should select products with a hot-dip galvanized coating thickness no less than 80μm, while industrially polluted regions may require special anti-corrosion coatings.
Material properties and certification standards form the foundation of quality assurance. High-quality clips should be manufactured from 60Si2MnA or 60Si2CrA spring steel, with hardness strictly controlled within the 44-48 HRC range. It is essential to verify that products pass ISO9001 quality management system certification and comply with international standards like DIN17221 or GB/T1222.
| railway E clips Specifications | ||||
| 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: 44-48HRCFor 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 | |||
| Standard refers | DIN17221, BS970, GB/T1222 | |||
GNEE RAIL recommends clients provide detailed track parameters and operational data. Our engineering team will conduct digital simulation analysis based on this information to recommend the optimal clip model and can provide customized solutions for special requirements.
