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The Pneumatic Sweco In-line (PSI) Sifter is used to sift dry flowing material. It can also be used to segregate smaller particles from larger particles, and to remove foreign matter. It screens dry material only while being pneumatically conveyed. The PSI™ sifter includes an air by-pass system to provide equal pressure on both sides of the screening surface. Typical applications include: flour, starch, salt, sugar, and plastics.

The benefits of the PSI sifter are many including reliability provided by the standard, dependable motion generator and direct drive system and reduced maintenance cost and downtime due to a design that allows for easy screen changes. Additionally, Sweco's no-tools weight assembly allows the operator to quickly and easily adjust the motion of the PSI to optimize flow for a particular process. The PSI sifter has low installation costs as well. High speed and low amplitude typically allow the PSI sifter to be bolted to the floor. This enables the PSI to be installed in tight locations or on a mezzanine without additional expensive superstructure. All of these features combined with a sanitary design make the Pneumatic Sweco In-Line Sifter the best solution for screening pneumatically conveyed materials in the industry!