Gypsum pressure ball machine is mainly used to suppress gypsum powder, pressed into a block after the ball as cement raw materials, in recent years, has been widely used. Which is characterized by forming pressure, easy to mold, high yield, low energy consumption. Hydraulic protection means is the high pressure oil from the hydraulic pump into the hydraulic cylinder, the piston axial displacement. The former head of the piston rod connected to the bearing housing pressure to meet production requirements. When the intake between the two gypsum pressure ball machine press roll material into the metal block excessive or hydraulic cylinder piston rod pressure overload, the pump will be shut down, the accumulator pressure change dampening effect, turn back to the oil spill , so that the pressure piston displacement increase the gap between the rolls so hard object by the pressure roller, the system pressure back to normal, you can protect the pressure roller is not damaged. You can adjust the pressure according to pressure the ball density requirements and production flexibility.