... the workbench, the columns, the beam, the slide carriage box, the headstock, the ram, the milling head, the ... the rail on the machine bed (X-axis) ;the slide carriage box moves laterally along the rail on ... heavy-duty linear rail is adopted for the X-axis of the gantry boring and milling machine ... beam. Both the ram and the slide carriage box have clamping mechanism, which maintains good accuracy and ...