Internally Fed Drum Screen

The Internally Fed Drum Screen (IFDS) is a free-standing unit designed for separating settling solids from wastewater using an internally fed rotating drum screen. This efficient and affordable drum screen requires low investment and minimal maintenance, making it ideal for industrial and municipal wastewater treatment.

Wastewater enters the unit via an inlet chute and flows through a rotating wedge wire or perforated drum that acts as the screening surface. Solids are retained on the inside of the drum, where they accumulate and partially dewater before being transported by an internal spiral to the discharge end. A cleaning system with jet nozzles mounted on a spray arm automatically cleans the drum as it rotates, while a hinged cover protects the drum and cleaning mechanism.

The drum is driven by a directly coupled motor, supported at the drive end by a self-aligning flange bearing and at the discharge end by two support wheels. All bearings are easily lubricated via external grease nipples. All wetted parts are manufactured from stainless steel for enhanced durability.

Advantages of the Internally Fed Drum Screen include a slip-free motor drive, absence of additional driving components, simple external maintenance, and easy replacement of wheels and bearings. This trusted solution delivers reliable wastewater separation with low operating costs.