Used Mills Bridgeport Mill Vertical Mills CNC Mills Apr 24, 2021 Used Vertical (Bridgeport Type) Mill for sale (597) currently in stock Brand New Vertical (Bridgeport Type) Mill for sale (68) currently in stock. View Machines Has a spindle axis is vertically oriented. Milling.The vertical shaft mill discharges to a rotary material sizing screen. The screen is driven by a h.p. single phase electric motor. The retained oversize material from the screen discharges to a closed circuit chute system that returns back into the crusher for further reduction.