Rail Fastenings Systems

FCA Common Interface

The Fastclip FCA rail fastening is designed for use on slab tracks where vertical adjustment is required and does so without the need for a baseplate. FCA CI is part of our Common Interface range.

Pandrol’s Common Interface System provides a common connection point for a range of different direct and indirect fastening assemblies. A common base accommodates three different fastenings: FCA, DFC and Vanguard. As a result, when noise and vibration mitigation requirements change, rather than having to modify or replace the whole track, the fastening system can simply be swapped out.

FCA Common Interface product overview

The product can be pre-assembled and delivered to site captive on the pre-cast element, providing substantial cost savings.

  • Pandrol have created rail infrastructure in more than 100 countries, with the ability to deliver the highest quality industry standard to the most special of applications

Benefits of the FCA Common Interface


Increased flexibility

The high degree of flexibility offered by being able to change the fastenings on the common interface allows for greater futureproofing of non-ballasted track than in the past. Where noise and vibration concerns demand changes to stiffness, instead of having to modify or rebuild the whole track, the fastening system alone can be changed. This saves time, results in minimal disruption to track access and reduces cost.


Easy installation

The FCA has been designed for ease of installation and maintenance with minimal tools, cutting maintenance inventory and time using a wide variety of manual / automated maintenance and stressing equipment.


Used for slab track systems

The FCA has been designed for slab track systems with a track stiffness of > 40 kN/mm (depending on track category).


Electrical insulation and corrosion protection

The system provides full electrical insulation and corrosion protection.



Available in low toe load and zero longitudinal restraint (ZLR) configurations, the FCA is suitable for bridge and viaduct applications. It can be used for stiffness transitions using variable stiffness rail and baseplate pads.


Low maintenance

The commonality of the FCA simplifies tooling, inventory and training for concrete plants.

Technical features of the FCA Common Interface


Common interface

The FCA shares a common interface that can accommodate FCA, DFC and Vanguard fastening systems, allowing for different levels of stiffness (resilience) without changing the substrate.


Optimised for ballastless tracks

The Fastclip FCA system is suitable for use with all forms of pre-cast elements, including mono block, independent blocks and slab panel. Pre-cast elements may be cast-in or resiliently mounted.


Custom stiffnesses

Track stiffness to suit typical CEN track categories A, B, C and D applications. Custom stiffnesses can be provided.


Fully pre-assembled

The Fastclip FCA system can be delivered to site fully pre-assembled (captive) on pre-cast concrete elements.


Highly adjustable

Total track gauge adjustment of 20 mm (10 mm per rail seat) can be facilitated by custom side-post insulators. Vertical adjustment of + 30 mm is facilitated by custom components and shims.


Highly evolved

Fastclip FCA is an adjustable evolution of the globally trusted Pandrol Fastclip product. Component materials are based on long established Pandrol specifications. Low clamping force, joint-bar and rail-free variants are available to meet special track needs.


High electrical insulation

The Fastclip FCA assembly offers high levels of electrical insulation, reducing the risk of track circuit failure.

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