How Is E Type Rail Elastic Clip Classified?
The E-type rail elastic clip, a core component of track fastening systems, can be systematically classified primarily by dimensional specifications, application system architecture, and special performance requirements, providing a clear framework for engineering selection and procurement.
Firstly, the most direct classification is based on the clip's geometric dimensions and model designation. Different models correspond to varying wire diameters and structural sizes to accommodate diverse rail types and load-bearing requirements. Common standard models include E1609, E1809, E2001, E2007, E2009, E2055, E2056, and E2063, among others. Among these, models like E2055 and E2056 are often preferred in heavy-haul railway applications due to their superior retaining power. These model codes typically imply key dimensional information, such as the wire diameter, ensuring precise compatibility with matching baseplates or shoulders.
| 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 |
Secondly, based on whether they are used in "separated" or "non-separated" fastening systems, the application of E-type clips is systematically differentiated. In "non-separated" systems, the clip bears directly on the rail foot, with its ends supported on shoulders embedded in the sleeper, resulting in a compact structure. In "separated" systems, the clip connects to the rail via an independent tie plate or baseplate, offering different elastic and gauge adjustment solutions. These two systems determine the installation method and load-bearing environment of the clip, forming a critical consideration during selection.
Furthermore, classification based on material and surface treatment is essential. To ensure high performance, E-type clips are predominantly made from premium spring steels like 60Si2MnA or 60Si2CrA, and undergo strict heat treatment to achieve a hardness standard of 44-48 HRC. Regarding surface treatment, options beyond plain oiling for rust prevention include oxide blackening, color painting, and zinc plating, catering to corrosion resistance needs in different environments.
| 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 | |||
As a professional supplier of railway products, GNEE RAIL comprehensively offers E-type clip products across all these categories. From standard models to special specifications customized according to client drawings, we guarantee product quality and performance, providing precise and reliable fastening solutions for your railway projects.
