Servall Engineering Works [P] Ltd. Manufactures Screening and Cleaning Machine with Extraction Chamber. Servall Engineering Works [P] Ltd. Supplies paper machinery up to 250 TPD capacities. Screening and Cleaning Machine with Extraction Chamber is when placed after the pulper, separates the fiber from contaminants and thereby minimizes dumping of precious fibre. Screening and Cleaning Machine with Extraction Chamber has also been provided with vertical perforated screen, and a rotor. It is available in two designs. The hydrofoil rotor design of this machine prevents contaminants from breaking down into smaller pieces, thus bettering the chances of fiber recovery efficiency from the failing system. It is available in the brand name of Servo Sorter.