Today take you to understand the vacuum press roller. Vacuum press rolls are mostly used in medium and high speed paper machines. The upper press roll of vacuum press is stone roll, and the lower press roll is vacuum press roll. The shell of the vacuum press roller is cast in bronze or stainless steel, and the thickness of the shell is determined by the required stiffness and strength. The thickness of the vacuum press roll is determined by the required stiffness and strength. The main feature of the vacuum press roller is that there are many small diameter through holes on the roller shell, through the wall layer and the body layer, and the vacuum is maintained in the inner cavity of the roller shell when working. When the paper and blanket enter the press area of the press roll and the vacuum press roll, the water in the paper page is transferred to the blanket. When the water in the blanket is saturated, under the action of vacuum suction, the water is discharged from the blanket, through the hole, into the inner cavity of the roller shell and then out.