The beam is actuated by two rack and pinion systems driven by two gearmotors, which are fixed at each end of the beam and are mechanically synchronized.
The gearmotors are driven by two brushless motors controlled by special drives, which, besides enabling a sine-like beam movement, make it possible to keep the number of beam strokes constant even when slab width changes; this ensures better polishing quality and uniformity over the whole surface of the slab, edges included.
This system is extremely reliable and time-tested, guaranteeing highly dynamic movements without putting stress on the mechanical components.
The beam’s working speed reaches 70 m/min. Furthermore, when beam traversing slows, “energy recovery” drives transfer the energy generated by braking back to the grid, with consequent energy savings.