Unicovska 132, 784 10 Litovel, Czech Republic
Size press is made as two-roll press with hydraulic or pneumatic loading. Press rolls are settled horizontally and its movable roll (first roll in paper run direction) is arranged under the stationary roll. The rolls are dynamically balanced on demanded speed and can be covered with different coats (rubber, ceramics) depending on produced kind of paper and type of sizing agent.
Design
Size press is made as two-roll press with hydraulic or pneumatic loading. Press rolls are settled horizontally and its movable roll (first roll in paper run direction) is arranged under the stationary roll. The rolls are dynamically balanced on demanded speed and can be covered with different coats (rubber, ceramics) depending on produced kind of paper and type of sizing agent. The sizing agent proceeds through distribution pipes between the rolls and retained by outside dams. Volume of sizing slurry can be controlled through set of valves, which are regulated either manually or electric-pneumatically. Paper web proceeds through the bath to be sized. Sizing agent surplus is led through system of waste troughs and pipes back to the working station. Roll surface coming not in contact with paper web and front parts of the rolls are cleaned by set of side and front doctors.
Paper can be sized according to demand on both or one side only in the sizing press. Paper web run through the size press is modified by use of shifting unit of inlet guide roll. After sizing the paper is led through guide roll under pressing part onto spreader roll, which spreads the paper web across its width before inlet to the after-drying part (usually on a pair of drying cylinders with chrome-plated surface). System of threading ropes is part of the size press and its design enables save feeding of the paper web from previous to the following drying section of the paper machine.
Paper surface treatment
Main parts
Material
Bearing structure and the rolls are made of common carbon steel. Size agent inlet and outlet parts are of stainless steel.
Advantages
Accessories
Scope of delivery
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