Representative Papermaking Machines Cylinder Machines A cylinder machine (Figure 3.3) rotates a screen drum in a vat of furnish. (The paper is sometimes called vat paper.) As the water pours through the screen, fiber accumulates on the outside of the screen. This thin layer of matted fiber is transferred onto a moving felt belt that passes sequentially over further rotating cylinders, each of which deposits another fiber layer.Representative Papermaking Machines Cylinder Machines A cylinder machine (Figure 3.3) rotates a screen drum in a vat of furnish. (The paper is sometimes called vat paper.) As the water pours through the screen, fiber accumulates on the outside of the screen. This thin layer of matted fiber is transferred onto a moving felt belt that passes sequentially over further rotating cylinders, each of which deposits another fiber layer