ska vertical lathes and vertical turning centers vertical lathes ska are manufactured in sizes from 12 to 40 (i.e. with the table diameter from 1.250 till 4.000 mm). at these machines the railhead with the ram and the rot......ska vertical lathes and vertical turning centers vertical lathes ska are manufactured in sizes from 12 to 40 (i.e. with the table diameter from 1.250 till 4.000 mm). at these machines the railhead with the ram and the rotary tool drive, the automatic tool exchange and protective guards have been designed in the entirely new way. the ska vertical lathes are designed for efficient turning, boring, threading, drilling, milling and grinding of components. the machine enables external and internal surfaces to be machined and faces to be turned at constant cutting speed.