Herkules - The specialist for roll machiningThe specialist for highly precise roll machining designs, manufactures and delivers roll grinders, lathes and roll shops, including automation. . Customized roll machining: notch milling machines . New knife grinding machine for roll shopsroll grinding machine,ROLL GRINDING MACHINEMay 3, 2013 . CNC ROLL GRINDING MACHINE(SIEMENS 840D) 2000X5500mm HANKOOK CAICO CO.,LTD TEL:+82-055-585-7714.