What are the main types of rail fasteners system
Oct 13, 2025
Rail fastening system is used for fastening the steel rail and railway sleeper. The function of rail fastening system is to maintain the gauge and prevent the vertical and horizontal movement of rails relative to the position of the sleeper. A fastening system is usually consist of rail tie plate, spike, clip, rail anchor or other fasteners.
Railway fastening system can be classified into various types, such as E-clip rail fastening system, Nabla clip rail fastening system, SKL clip rail fastening system, KPO clamp rail fastening system, Spring blade fastening system, High speed rail fastening system, etc. Rail fastening system gives it full play to buffer and absorb the shock that train pressed on the rail. It needs to meet the requirement of enough intensity, durability and certain elasticity, especially with the application of high speed rail and the Improvement of railway security.
Main types of rail fasteners system
E Clip Rail Fastening System
The E-type fastening system is one of the most widely used railway fastening systems, used primarily for concrete sleepers. It is widely used in ordinary railways and heavy-load railways and is suitable for standard tracks of high-speed railways.
| Item | Quantity | Material |
|---|---|---|
| E clip | 2 | 60Si2MnA, 60Si2CrA |
| Shoulder | 2 | QT500-7, QT450-10 |
| Rail pad | 1 | HDPE, rubber, or EVA |
| Insulator | 2 | Reinforced Nylon 66 (PA66) |
Nabla Clip Rail Fastening System
The Nabla fastening system is a fastening system named after its special Nabla shape. It is suitable for heavy-duty railways and corrosive environments, such as railways in mining areas.
| Item | Quantity | Material |
|---|---|---|
| Clip | 2 | 60Si2MnA, 60Si2CrA |
| Insulator | 2 | Reinforced Nylon 66 (PA66) |
| Screw spike | 2 | Grade5.6:35# |
| Spring washer | 2 | ML08AI |
SKL3/SKL12/SKL14 rail fastening system
SKL rail fastening systems (SKL3, SKL12, SKL14 ) are known for their excellent fatigue resistance and stability and are widely used in European railway systems. It applies to high-speed railway and urban rail transit.
| Item | Quantity | Material |
|---|---|---|
| SKL tension clip | 2 | 60Si2CrA, 60Si2CrA, 38Si7 |
| Ss35 screw spike | 2 | Grade 4.6: Q235 |
| Grade 5.6: 35# | ||
| Grade 8.8: 45# | ||
| Flat washer | 2 | Q235 |
| Plastic dowel | 2 | HDPE, Reinforced Nylon 66 (PA66) |
| Guide plate | 2 | Reinforced Nylon 66 (PA66) |
| Rail pad | 1 | EVA, or rubber |
KPO Rail Fastening System
The KPO fastening system is a wedge-shaped fastening commonly used on wooden and steel sleepers, applicable to ordinary railways, light rails, and low-speed railways.
| Item | Quantity | Material |
|---|---|---|
| KPO clip | 2 | Q235 |
| Screw spike | 2 | Grade 4.6: Q235 |
| Grade 5.6: 35# | ||
| Grade 8.8: 45# | ||
| HS bolt 4 | 4 | Grade4.6: Q235 |
| Grade5.6: 35# | ||
| Grade8.8: 45# | ||
| Hex nut 2 | 2 |
Grade 5: 35# |
| Grade 8: 45# | ||
| Double coil spring washer | 2 | 65Mn |
Fist Clip Rail Fastening System
The fist fastening system is a boltless elastic fastening system that emphasizes fast installation and efficient performance. It is suitable for heavy-load railways and scenarios where rapid construction is required.
Main components
- Spring steel clip: Bolt-free design, clamps the track.
- Rail pad: Protects the sleepers and distributes the pressure.
- Insulated retaining pin: It has multiple functions such as electrical insulation, stable fastening system, corrosion resistance, and simplified installation.
As a professional rail fastener supplier , GNEE RAIL can provide quality and safe rail fastening system for different rail track. We can offer Clip Type Fastening System, SKL Rail Fastening System, KPO Rail Fastening System, Spring Blade Fastening whether for high speed rail track, normal rail or subway. Our product has good performance of keeping certain rail gauge and horizontal position. Good elasticity lowers the transmission noise and the simple structure of fastening system makes it easy to replace the accessories. We are committed to manufacture reliable product for global customers.
