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LengthProfiler

There is no doubt that the best method of measuring length in a caster or steel mill is by using a Doppler gauge. For accurate measurement, the object must pass the laser at the reference distance ±100 mm and for some applications this is not possible. Typically this problem arises on slab casters where there is a large difference between the narrowest and widest slab or wide roller tables where bars are passing and are not in a fixed location but can wander left or right. LIMAB have developed a turn-key solution to solve this measurement application and it is suitable for use on billet/bloom or slab casters or any roller table transporting hot or cold bars. The Doppler is mounted on a servo driven positioning mechanism that automatically tracks the position of the bar placing the Doppler at the optimum distance. The information about the slab position comes from a separate laser distance sensor. The system is protected by a special forced air cooled housing which keeps the equipment clean and cool.

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