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Schenck Process has introduced the Multirail Hotmetalweight rail vehicle scales, which can weigh a torpedo wagon carrying liquid pig iron as it travels from the blast furnace to the steel works.

The dynamic train scales are made from standard concrete points sleepers integrated into the force sensor.

The weight of each wagon is measured when the train travels over the scales at normal speed.

This eliminates any interference to the dynamics of the train driving over the scales, increasing the weighing output compared with static weighbridges and also reducing errors.

There are no weighbridges, no gaps and no variations in rigidity.

Continuous monitoring of the empty and full weights of all wagons gives information on each wagon’s fireproof brick lining, reducing maintenance.

The first Multirail Hotmetalweight was commissioned at Salzgitter Flachstahl in the summer of 2007.

Since then it has weighed 14,000 tonnes of pig iron from three blast furnaces.

It has a maximum dynamic error rate of +/- 0.5 per cent.

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