The transportation of up to 9 inches long profiles is made possible by the use of a vacuum system that highly increases the grip of the pieces on the belt, permitting the honing of raw materials, even with belts. Thanks to the wide modularity, the LPC can be equipped with all the operating groups that all Makor honing machines are endowed with, making the honing operations on parts of dismantled fixtures and mobile parts, which previously had to be worked upon by hand, automatic. The pressurising of the belt can be made partial, in accordance with the type of profile worked upon.