The machine Saphir 520 is a lijadora and pulidora metalográfica of 1 disk of 250 mm of diameter. It has of a cabezal automatic that allows to prepare simultaneously 5 samples of a maximum of 40 mm of diameter.
The instrument has of a big quantity of possibilities of control as they are: time of essay, pressesure exerted, speed of twist of the disk, steering of rotation of the portamuestras, individual pressesure or head office and pneumatics descent of the cabezal.