Railway fastening systems are the key interface connecting rails to sleepers, ensuring track stability, safety, and performance. They must withstand dynamic loads, vibration, thermal expansion, and environmental factors over long-term operation.
Common rail fastening systems include elastic fasteners like Pandrol e-clips, Vossloh SKL clips, E-Clip systems, N-Clip systems etc. These elastic rail clips provide constant tension, absorb vibration, resist rail creep, and allow slight rail movement while securing rails to concrete or wooden sleepers.
| Specifications for ONE unit of SKL Clip rail fastening system | ||||
| Item | Quantity | Type | Material | Remark |
| SKL tension clip | 2 | skl1, skl3, skl12, skl14 | 60Si2CrA, 60Si2CrA, 38Si7 | Hardness: 42-47HRC |
| Standard: DIN17221, GB/T1222 | ||||
| Ss35 screw spike | 2 | M24×150mm | Grade 4.6: Q235 | Standard: ISO898-1 |
| Grade 5.6: 35# | UIC864-1 | |||
| Grade 8.8: 45# | NF F500-50 | |||
| Flat washer | 2 | Uls7 | Q235 | Standard: EN10025, EN10139 |
| Plastic dowel | 2 | For different sizes of screw spike | HDPE, Reinforced Nylon 66 (PA66) | For insert into concrete sleeper |
| Guide plate | 2 | UIC54, UIC60, 50kg rail, 60kg rail, | Reinforced Nylon 66 (PA66) | Different designs are available |
| and other sizes as ordered | ||||
| Rail pad | 1 | Size as ordered | EVA, or rubber | |
Nabla rail Clip rail fixing systems
| Specifications for ONE unit of N Clip rail fastening system | ||||
| Item | Quantity | Type | Material | Remark |
| N clip | 2 | Thickness 4mm or 4.5mm | 60Si2MnA, 60Si2CrA | 42-47HRC 3 million times without breaking; Application for different rail types |
| Insulator | 2 | Reinforced Nylon 66 (PA66) | Density:1.3-1.45g/cm3 | |
| Tensile strength:≥170Mpa Elongation:≤4.4% Bending Strength:≥250Mpa Impact Strength(No gap): ≥80KJ/m2 Melting point:250-270℃ Insultion resistance:≥1X108Ω Glass fiber content:30-35% Hardness:≥110HRR | ||||
| Screw spike | 2 | UIC54,UIC60,50kg rail,60kg rail | Grade5.6:35# | Tensile strength:≥500Mpa Yield strength:≥300Mpa Elongation:≥20% Cold bending:90° without crack |
| Spring washer | 2 | 18.25x34x78mm | ML08AI | Chemical composition(%): C:0.05-0.10, Mn:0.30-0.60, Si:≤0.1, Cr:≤0.2, P:≤0.035, S:≤0.035 |
Rigid fastening systems, including traditional dog spikes, coach screws, and rail bolts, remain in use for timber sleeper tracks or temporary installations.
| Specification | Material | Surface | Standard |
| 5/8*6 '' | A3,Q235, 45#,55#, etc | According to customer needs. | According to customer's drawings or samples. |
| 9/16*5-1/2 '' | |||
| 3/8''*3-1/2 '' | |||
| 1/2*3-1/2 | |||
| Other kinds |
Embedded fastening systems and sleeper-mounted systems further enhance track stability in ballastless and high-speed tracks.
GNEE RAIL supplies a full range of rail fastening systems, including elastic clips, tie plates, rail pads, rail bolts, dog spikes, and anchors etc, designed for various railway types and environmental conditions. Our products ensure secure rail-sleeper connections, reduce maintenance, and improve operational efficiency across conventional, high-speed, urban, and freight rail lines.