press machine,hydraulic machine,four column hydraulic machine,semiautomatic,PLC control This series of ... system,oil cooler,touch industrial screen,knockout device-hydraulic or mechanical type.Fast die clamping mechanism,imported ... floating guide rail and rolling bracket,top-mounted hydraulic system,slider lock mechanism.2.main circuit: ... 1450 1600x1600 74 52 Y71 -400T four column hydraulic press machine