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.
The SKL/KPO railway fastening systems manufactured by GNEE RAIL effectively withstand vertical, horizontal, and longitudinal forces generated during train operation. Simultaneously, they exhibit exceptional elasticity to cushion vibrations and noise, ensuring smooth and safe train movement.
SKL Rail Fixing 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 |
Features
Strong elasticity: SKL fasteners have high elasticity and can effectively reduce vibration and noise when trains are running.
High reliability: With scientific design, it is able to withstand high dynamic loads in complex environments for a long time.
Low maintenance cost: Simple installation and maintenance, long service life.

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 |
Features
Simple structure: KPO fasteners consist of a wedge-shaped design, which makes installation easy.
High stability: It can provide a stable track-fixing force.
Low Cost: The manufacturing and maintenance costs are relatively low.


