Weldable rail clips

Gantrex patented solution

What's a weldable rail clip?

The welded clip, comprises of two parts, the welded lower and adjustable upper part.  The lower part is welded to the steel support and the upper part is fixed to the lower part via captive bolt(s).  The lower part welding to the girder is done in the factory or machine shop which allows for quick and easy installation of the upper component on site.

Weldable RailLok™ clips feature the patented additional wedge  Active Contact feature via an inclined bolt which ensures the lateral contact with the rail foot is maintained during installation. Moreover, the Active Contact feature allows for the use of impact wrenches during installation which substantially speeds up installation time while ensuring the proper performance of the clip.

Key features

Quick and easy installation
Active Contact with foot of the rail
Self-locking under lateral force
Fix & forget system

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RailLok™ weldable clips

With our patented RailLok™ weldable clips, i.e. our popular RailLok W20, together with our pads, Gantrex has literally rewritten the state of the art. This technology ensures active-contact between the clip and rail.  The patented technology increases the clips capacity to address ever growing crane loads and provides a narrower design allowing operational and financial savings.

The Gantrex RailLok Clip patent is filed under the following numbers across the world: US8205803B2, EP2173947B1, CN101720371BrnrnAs a truly global company, we have several clip production sites across the world, from EU origin production to local US production where we are producing a range of “Made in America” clips. Whatever you need – we can accommodate for all local specifics.

RailLok™ clips are available in weldable and boltable versions for different fixing supports. The mechanical performances of the stress resistant clips were certified and tested by worldwide renowned laboratories for specialized Rail Tracks Construction.

Weldable clips are available in different sizes and capacities to suit different rail profiles and wheel loads.  The correct clip selection not only depends on dimensional and mechanical considerations but also on installation contingencies of your particular application. We therefore recommend you contact us to discuss your requirements.

Patented active contact technology

To transfer lateral forces from the rail to the steel structure, the rail must be secured with appropriately sized clips. Gantrex RailLok clips use patented active contact technology that tilts bolts during installation, ensuring proper engagement and improved performance under dynamic loads.

Active contact tilts bolts during installation
Ensures proper engagement
Improved performance

Raillok™ innovative design

Gantrex’s RailLok™ clips and pads transform the industry. They ensure contact between the clip and rail, allowing impact drills during torquing, which reduces installation time. This enhances clip capacity for crane loads and offers a narrower design for savings. The Active Contact feature improves performance and prevents backing off. RailLok clips come in weldable and boltable versions, with certified performance.

Ensure contact between clip and rail
Peduce installation time
Prevents backing off

Rubber nose

Each Gantrex RailLok clip comes with a rubber nose that have multiple benefits to increase lifespan

Applies vertical force to compress rail pad seals
Absorbs uplift forces from rail movement
Ensures longevity of the rail system

Suited for every application that requires fixing a rail

GANTREX® patented clips are essential for our soft-mount crane rail solutions, fitting nearly every rail profile. They lock rails in place while allowing movement through a soft elastomer nose, designed to handle crane forces.

All types of industrial overhead cranes and transfer cars systems
STS and automated portal cranes, stacker-reclaimers
Loaders and unloaders for bulk material handling
Automated stacker cranes for warehouse industry
Special heavy load applications such as retractable roofs and rocket movers

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Our weldable clips range

Model W10

Nominal capacity range 65 kN

Adjustment range 0-10 mm

Max clearance height 38 mm

Model W15

Nominal capacity range 120 kN

Adjustment range 0-12 mm

Max clearance height 47 mm

Model W17

Nominal capacity range 165 kN

Adjustment range 0-20 mm

Max clearance height 47 mm

Model W20

Nominal capacity range 165-200 kN

Adjustment range 0-14 mm

Max clearance height 47mm

Model W22

Nominal capacity range 165 kN

Adjustment range 0-20 mm

Max clearance height 47 mm

Model W25

Nominal capacity range 235 kN

Adjustment range 0-20 mm

Max clearance height 59 mm

Model W30

Nominal capacity range 300 kN

Adjustment range 0-20 mm

Max clearance height 63 mm

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