Hydroflux - Model RakeMax -Multi-Rake Bar Course Screens
HUBER’s RakeMax Bar Screen is a heavy duty course screen designed to process wastewater with high levels of solids and/or gross material. The screening medium is effectively a row of bars that can be spaced from 6 mm to 50 mm in channels up to 4 m width to suit specific requirements. Channel depths of up to 20 m are possible with the RakeMax Course Screen. A rake system is used to clear the bars of screened material and transport the screenings to a discharge chute using a specially designed wiper that ensures that the bars are properly cleared.
The course screen is inclined at 75 degrees which is the ideal installation angle to allow the effective removal of a variety of solids from small twigs to trash and logs.
- Channel width; 500 mm – 4000 mm
- Capacity: up to 3000 L/s subject to wastewater quality
- Discharge height above channel floor; 2.2 m to 20 m
- Bar spacing: 6 – 50 mm
- Installation angle: 70 – 85 degrees
- Easy-to-retrofit into existing channels, installation without channel recesses possible
- Completely odour-encased screen with easy to remove covers
- Compact design with a low installation height above ground level
- Simple and easy-to-access chain tensioning unit
- All parts in contact with medium (except the chain, drive and bearing) are made of immersion pickled stainless steel. (Optional stainless steel chains available).
- Very low head loss with high separation efficiency
- High screenings discharge capacity through adjustable cleaning elements
- Screen installation is possible without a bottom step
- The screen consists of a self-supporting folded stainless steel profile so that it can easily be lifted out of the channel.
- Not hindered by gravel or grit
- Defined meshing of the cleaning rakes with the bar rack ensures a high operating reliability.
- Independently replaceable rake and comb plates
The RakeMax Screen features a compact design with a low installation height above the floor. Even in deep channels, its height is determined only by the placement of the downstream screenings transport or washing system, making it a space-efficient solution.
The cleaning elements are securely attached to drive chains at both ends, with each chain powered by a sprocket on a common shaft and a flange-mounted gear motor. The precise meshing of the cleaning rakes with the bar rack ensures reliable operation and effective debris removal.
To prevent damage and ensure uninterrupted performance, the system is equipped with an electro-mechanical overload protection mechanism. This spring assembly with deflection monitoring automatically halts operation if a blockage occurs or when the preset load limit is reached.