The rotary drum vacuum filters, a workhorse of the starch, Paper and chemical process industry for many years, has been designed for long life and easy maintenance. These filters involve half of the drum being submerged in the slurry and the other half above it. The Filter Cloth or belt winds around the drum, and as the drum rotates, the slurry is sucked into the cloth. As the drum rotates, the cake is dried using vacuum pressure on the exposed area, and the cake is formed. The dried cake is discharged as the drum rotates.