Rail clips

Our boltable and weldable patented RailLok™ clips, combined with GANTREX® pads, constitute the essence of the industry-proven soft mounting rail fixing system.

What's a rail clip?

A rail clip is typically a metal component used to attach the rail to the track supporting structure. Rail clips are designed to securely hold the rail laterally, while also allowing for some longitudinal movement and expansion due to temperature change and other factors.

What is the function of a rail clip?

  • Properly transfer the lateral force from the rail into the steel plate and structure

  • Secure the rail in the lateral direction to minimize pad creep

  • Apply vertical force on the rail to compress the seals on the pad

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Why Gantrex clips?

Gantrex engineers have the knowledge, expertise and experience to choose the best solution for your needs

Key factors to consider

  • Select the right clip for the application

  • Ensure the clip can transfer all lateral forces applied

  • Accurately select the right upper component and nose height combination

  • Right clip applies the correct force on the pad properly compressing edge seals

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Our RailLok™ clips

weldable clips range
RailLok™ weldable clips
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RailLok™ boltable clips
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Handling forces

To properly transfer the lateral forces from the rail into the steel plate or structure the rail needs to be secured in the lateral direction by appropriately sized rail clips. The clips also need to properly mitigate dynamic loads without backing off the rail. Gantrex RailLok™ clips incorporate the new and patented active contact technology which slightly tilts the bolts during clip installation ensuring the clip properly engages with the toe of the rail. The Active contact within the clip also improves the clip performance under dynamic applications ensuring clip stability which means the clip stays engaged with the rail longer without backing off.

Spacing and sizing

Clip spacing and clip sizing is extremely important for the best performance of the system as a whole. To minimize pad creep we need to minimize lateral rail movement, this is done by properly sizing the clips and ensuring proper rail clip spacing. Clip spacing is normally calculated to keep lateral rail deflections within allowable parameters specific to your application. It is also extremely important to ensure proper performance of the clips under dynamic loads, if the clip backs off the rail and the rail is allowed to move in the lateral direction, then pad creep will persist. Gantrex Active Contact RailLok™ clips are industry-leading rail fastening solutions for dynamic applications. By maintaining active engagement with the rail for longer, they minimize the possibility of pad creep.

weldable clip 3D image
The rubber nose

Each Gantrex RailLok™ clip comes with a rubber nose. The rubber nose is designed to apply a vertical force on the rail to compress the seals on the pad while accommodating uplift forces induced on the rail through further compression of the nose. The initial compression of the nose is extremely important for the proper performance of the system.

Over-compression of the nose transfers even minor vertical rail movements directly to the clip bolts, increasing fatigue loading. Under-compression prevents the pad seals from functioning effectively, allowing the ingress of dirt and water and resulting in premature pad deterioration. Gantrex has 16 different nose and clip upper combinations for each rail clip to properly accommodate the 70 different rail profiles available in the market. Please contact us to pick the appropriate rail clips for your particular application.

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