TEFC motor and gear drive

304 stainless steel construction

UHMW polyethylene trunnions shaft-mounted

On pillow block bearings

Internal flights

External spray bar

OFS series of internally-fed rotary screens is the most versatile unit, applied on high flows with heavy solids loading for industrial wastewaters. The OFS features a modular design, with components bolted to a heavy duty based structure. The screen cylinder can be wedgewire, perforated plate or fine mess. The cylinder rotates horizontally on four trunnion wheels and is driven by a TEFC gear motor and corrosion resistant chain and sprocket arrangement


    - Support legs
    - Control panel
    - 316 stainless steel
    - Drainage pan
    - Vapour enclosure
    - Solids chute
    - Internal spray bar
    - Chain oiler
    - Mesh lined drum
    - VFD

Method of operation

The influent enters a headbox, which extends 2/3 the length of the drum, where the flow is evenly distributed onto the sidewalls of the drum, solids are retained on the screen surface as the liquid filtrate to a central drainage area and the solids are transported axially, by flights , to the open end of the drum. The rotation of the drum allows the entire screening surface to be continuously or intermittently washed by a fixed external spray bar fitted with a bank of fan jet, spray nozzles.



other size of screening opening are availabe.

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