Four-cold forming machine source in Zhengzhou Mechanical Equipment Co., Ltd. Four-cold-molding machine manufacturer first cold press molding machine known as Four-column hydraulic machine, is a source of R & D center in Zhengzhou design and production of high-efficiency hydraulic molding equipment . Four-hydraulic system using cold forming machine variable pump oil supply system, using a large flow centralized control valve block, at the inlet of the pump suction filter set, set the high-pressure pump outlet filter to prevent contaminants from entering the hydraulic system, to ensure the normal operation of the oil line. System has oil temperature, oil level display, air filtration and other devices. Mailbox for steel plate welded structure with clean windows, bottom with drain plugs and sewage. Computer optimized structure design, three-beam four-post structure, simple, economical and practical. Four-cold-molding machine features an external cooling system can work continuously without interruption. Using centralized control buttons, with adjustment, manual and semi-automatic operation. By selecting the operation panel can be achieved given away two constant pressure molding process, and has features such as security during rolling. Slider working pressure, load and slow downward courier working stroke range can be adjusted according to process requirements. Integrated steel girder structure, stable and reliable. Hydraulic control cartridge valve integrated system, small hydraulic impact, reducing the continuous pipeline leak points. Independent electrical control system, reliable, small footprint.