It is the transition element between the rail and the railway sleeper , responsible for reducing the dynamic effects of the rail to the sleeper, by damping impacts in the downward vertical direction and the loads and vibrations induced by the passage of trains.

Depending on the characteristics of the rubber used in the injection process for these parts, the different elasticities required by the railway authorities are obtained, which can range from 60 kN/mm to >300 kN/mm; depending on the level of noise and vibration attenuation to be achieved.

They also provide the electrical insulation of both rails and help to prevent the rail from sliding lengthways.

The under-rail bedplates are elements that work in the open air and that, in addition to environmental aggressions, are characteristic of the place where they are installed, and due to the passage of trains, are permanently supporting static and dynamic stresses.

To ensure the good quality of the products installed in the railway networks, there are a series of European standards, which indicate the demanding tests that these must pass.

The parts injected by Junta3, comply perfectly with the European standards applied to the under-rail seat plates.

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