The ProRun system specifically reduces the nip vacuum in the pick-up area of the center roll in the press. This reduces the load on the wet paper web when removing it from the center roll.
In order to improve the pickup of the web from the center roll, ProRun constantly blows air into the nip between the paper web and the center roll with a defined pressure level. It is connected to the existing compressed air network on the drive and operator side. With the aid of blow air, the load of the still wet and sensitive paper web is reduced during removal from the center roll. This leads to a significant reduction in paper draws and allows pronounced speed increases. An additionally installed laser measurement precisely records the paper web’s removal line from the center roll surface.
ProRun is used in the press section at the center roll for better web pickup.