A hydraulic press brake from Zhongrui operates by converting hydraulic pressure into mechanical force for bending metal. The process starts with the hydraulic power unit (pump) generating oil pressure, which flows to cylinders attached to the ram. As pressure builds, the ram descends, applying force to the punch, which presses the sheet metal against the die. The CNC system controls ram speed and force via proportional valves, while the backgauge positions the material accurately. During bending, the machine's rigid frame resists deformation, and automatic crowning adjusts for bed deflection. Hydraulic press brakes like Zhongrui's WC67K series use high-pressure cylinders (up to 250 bar) to generate 40-2,000 tons of force, suitable for thick materials. After bending, the ram retracts, and the part is ejected, with sensors monitoring each cycle for precision and safety.