A rail fastening system is the core assembly that secures rails to sleepers or concrete ties, ensuring smooth, safe train operations and prolonging the service life of the track.
The fastening system not only holds the rail in position but also prevents longitudinal and lateral displacement while absorbing vibrations and impacts generated during train movement.
A typical railway fastening system includes rail clips, rail pads, rail insulators, tie plates, bolts, nuts, screws, and plastic sleeves etc. Rail clips provide clamping force to firmly secure the rails to the sleepers, maintaining overall track integrity. Rail pads distribute loads and reduce wear on wooden or concrete sleepers. Rail insulators provide electrical insulation and vibration damping, while bolts, nuts, and screws ensure a tight connection among all components, enhancing overall stability.
Different fastening systems are suitable for different track conditions. The E-clip system uses elastic clamping to stabilize rails on mixed-traffic lines. The SKL system employs screws, flat washers, and plastic sleeves to withstand high-speed and heavy-load railways. The KPO system combines bolts, nuts, and spring washers with tie plates to achieve higher pull-out resistance and durability. By selecting the appropriate fastening system, tracks can maintain precise gauge, smooth operation, and reduced maintenance costs.
High Speed Rail Fastening System
| High Speed WJ-7 Rail Fastening System | High Speed WJ-8 Rail Fastening System | High Speed Type V Fastening System | ||||||
|---|---|---|---|---|---|---|---|---|
| Item | Quantity | Material | Item | Quantity | Material | Item | Quantity | Material |
| Rail clip | 2 | 60Si2MnA | Rail clip | 2 | 60Si2MnA | Rail clip | 2 | 60Si2MnA |
| T-bolt nut washer | 2 | Q235A | Screw spike | 2 | 20MnTiB | Screw spike | 2 | 20MnTiB |
| Rail insulator | 2 | PA66 Material |
Flat washer | 2 | Q235A | Flat washer | 2 | Q235A |
| Tie plate | 1 | QT450-10 | Rail insulator | 2 | PA66 | Space pieces | 2 | Q235A |
| Insulated buffer plate | 1 | Rubber | Guide plate | 2 | Reinforced Nylon 66 (PA66) | Gauge apron | 2 | Rubber |
| Rail pad | 1 | EVA, or rubber | Rail pad | 1 | EVA, or rubber | Rail pad | 1 | EVA, or rubber |
| Anchor bolt | 2 | Q235A | Tie plate | 1 | QT450-10 | Adjustable pad | 1 | PE |
| Spring washer | 2 | 60Si2Mn | Plastic dowel | 2 | HDPE, Reinforced Nylon 66 (PA66) | Plastic dowel | 2 | HDPE, Reinforced Nylon 66 (PA66) |
| Plain washer | 2 | QT450-10 | Rail adjustable pad | 2 | PE | |||
| Plastic dowel | 2 | HDPE, Reinforced Nylon 66 (PA66) | Tie Plate adjustable pad | 2 | PE | |||
For more information – Get in touch now!
GNEE RAIL provides comprehensive railway fastening solutions, including all types of rail clips, rail pads, tie plates, insulators, bolts, screws, and plastic sleeves, along with customized design, installation guidance, and after-sales support, ensuring efficient, safe, and long-lasting track fastening for clients worldwide.
Send your special customization requirements to GNEE.
