Rail fastening system is a set of fasteners that used to connect steel rail and railway sleepers. Generally, the railway fastening system is required to have reliable connection, simple structure and features of elasticity, shock absorption and insulation.
Main Types of Rail Fastening System of Features
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) |
Features
- Elastic design: E clips are made of spring steel, which provides good elasticity and can effectively absorb vibration and impact during train operation.
- Simple installation: The structure is simple in design and easy to install and maintain.
- Strong anti-fatigue performance: The fastener system can withstand the dynamic load of high-frequency train operation for a long time.
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 |
Features
High stability: Nabla fasteners provide very reliable lateral and longitudinal stability.
Strong adaptability: It is suitable for a variety of track conditions, including ordinary railways and high-temperature and corrosive environments.
High durability: The material has excellent performance and can withstand the dynamic load of railway operation for a long time.
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 |
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.
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 |
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.
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.
Features
Bolt-free design: No additional bolts are required during installation, simplifying the construction process.
High elasticity: It is suitable for railways with large dynamic loads, and can effectively absorb vibration and impact.
High reliability: It is suitable for long-term use with low maintenance requirements.
GNEE Rail is a trading company specializing in global supply chain management of railway fasteners. The company integrates domestic high-quality manufacturing resources, and its products cover all kinds of rail connectors, strictly implementing international quality standards.