How do Rail Clips securely fasten rails to sleepers?

Rail clips securely fasten rails to sleepers by creating a high clamping force, often with the help of other components like a base plate and bolts. Made from strong spring steel, a clip bends to clamp onto the base of the rail and press down on a tie plate. This elastic force holds the rail down, preventing vertical and horizontal movement while also absorbing vibrations from passing trains.

How rail clips work?

• Clamping force: The clip, typically made of elastic spring steel, is designed to deform and then spring back, creating a permanent and powerful clamping force once installed.

• Securing to the sleeper: The clip's force is applied against the rail's base and onto a tie plate, which is the metal plate the rail sits on. The tie plate is then secured to the sleeper with fasteners like screws, bolts, or anchor bolts.

• Preventing movement: This system prevents the rail from moving up and down, side-to-side, and maintaining the correct gauge (distance between rails).

• Absorbing vibration: The elasticity of the clips absorbs shock and vibration from trains, which improves passenger comfort and reduces wear and tear on the track.

• Allowing for thermal expansion: The system can also allow for some limited expansion and contraction of the rails due to temperature changes without causing damage.

Components of the system

• Rail clip: The spring steel component that provides the clamping force.

• Tie plate: The metal plate under the rail that distributes the load to the sleeper.

• Fasteners: These secure the tie plate and clip to the sleeper, such as coach screws, elastic spikes, or other types of bolts.

• Other components: Depending on the system, additional parts like plastic dowels or spring washers are used to help secure the components and absorb vibration.

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Furthermore, GNEE RAIL offers a diverse range of products and services, including OEM and OBM rail fastening systems for conventional, high-speed, heavy-haul, and metro applications. Its portfolio includes rail clips, pads, tie plates, bolts, and other specialized components. Comprehensive laboratory facilities ensure all products meet rigorous standards, including EN 13146, EN 13481 internationally, and TB standards domestically in China.