
Railway Clips in Rail Fastening System
Railroad tie clip are essential components of a rail fixtures system, responsible for securing the rail to the sleeper and maintaining track integrity. They provide a clamping force that holds the rail in place, absorb shocks and vibrations from train movements, and help maintain the track gauge.
what is a railway clip?
Railroad tie clip are essential components of a rail fixtures system, responsible for securing the rail to the sleeper and maintaining track integrity. They provide a clamping force that holds the rail in place, absorb shocks and vibrations from train movements, and help maintain the track gauge.

Railway clips make it easy to install new rail or thermally adjust the rail to a neutral temperature, ensuring that the track does not buckle. The invention of the elastic fastener has revolutionized rail fastening systems with respect to continuous welded rail. Without these types of rail fixtures there would be more derailments and potential loss of life with each one.
Application of Rail Elastic Clips in Rail Fastening Systems
Elastic rail clips are a crucial component in modern rail fastening systems, designed to secure steel rails to sleepers while allowing for controlled movement and absorbing impact energy. Their primary applications include preventing longitudinal and lateral rail movement, maintaining a consistent gauge, and reducing vibration and impact from passing trains. They are used in various systems like E-clips and SKL clips for applications ranging from standard ballasted tracks to high-speed, ballastless lines.
Examples of different clip systems
- E-clip systems: A mature and widely used system for various applications, often used in combination with rail shoulders and insulators.

| 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) |
- SKL clip systems: A common type of elastic clip used in various fastening systems, designed for specific performance requirements.

| 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 |
- Nabla clip systems: A fastening system popular in Europe, known for its simple installation and maintenance.
- High-speed and ballastless systems: Specialized elastic clip systems, such as Type IV and WJ-2, are designed for high-speed lines and ballastless track structures, ensuring stability at high speeds.

What is the purpose of Rail Clip?
The purpose of a rail clip is to secure steel rails to railway sleepers (or ties) and maintain the integrity of the track. These clips hold the rails firmly in place, preventing movement and ensuring the correct gauge, while also absorbing shocks and vibrations from passing trains to protect the track structure. They are a critical component of modern rail fastening systems, contributing to the safety, reliability, and longevity of the railway infrastructure.
Key functions of a rail clip
- Secure fastening: Rail clips provide a reliable connection between the steel rail and the sleeper, preventing the rail from moving, bending, or warping.
- Maintain rail gauge: They are designed to hold the rails at a precise distance apart, which is crucial for train safety.

- Absorb shock and vibration: The elasticity of the clip helps to absorb the impact and vibration from heavy, passing trains, which reduces stress on the track and minimizes noise.
- Accommodate thermal expansion: Rail clips allow for the natural expansion and contraction of the rails due to temperature changes, which is essential for preventing track damage.
- Withstand forces: They are engineered to transfer lateral forces and withstand the repeated stress from bending, torsion, fatigue, and impact that occur over the lifespan of the track.
How Do Rail Clips Enhance Railway Efficiency?
Rail clips play a role in enhancing the effectiveness of railway operations through supporting track stability and durability.

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Contribution to Track Longevity
Through the attachment of rails with rail clips; it aids in minimizing unnecessary movement that could result in wear and tear over an extended period. This proves beneficial in prolonging the lifespan of both the rails and the supporting structures; thereby decreasing maintenance expenses and operational downtime.
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Improvement in Train Performance
Maintained rail clips that keep the tracks stable leading to smoother rides with less vibration and noise improving passenger comfort and reducing energy consumption by enhancing train dynamics.
GNEE RAIL has always adhered to the philosophy of "Craftsmanship in Quality, Sharing Globally" and is committed to providing safe and reliable connection solutions for international rail transit projects. Leveraging a sound supply chain management system, we have established a stringent product quality traceability mechanism to ensure full-process quality control from raw materials to finished products. Going forward, we will continuously optimize the global supply chain layout, and provide customers with high-quality railway fastener products with more efficient services and more reliable quality.



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