HUBER RakeMax®-hf High Flow Multi-Rake Bar Screen
Reliable, sturdy travelling screen
- Very high screenings discharge capacity
- Low headloss
- Low installation height above ground level even in deep channels
- Control-independent safety system
The RakeMax ®-hf is a L-shaped multi-rake bar screen and like the RakeMax® screen belongs to the MAX family of HUBER screens. This screen has a flat and therefore hydraulically advantageous bottom section that transitions into a steep conveying section. This combines the benefits of the well proven RakeMax®, reliable solids separation and high screenings discharge capacity, with a low headloss due to a big effective screen rake surface.
Material removal from the screen starts right at the bar rack mounted flat to the channel bottom so that any accumulation of disturbing material is eliminated. The cleaning elements, attached to the chain system, can easily be adjusted to different requirements. This is especially favourable for high solids loads. Depending on the bar spacing, the bar rack design is either a flow-optimising bar or non-blocking wedge wire profile. Both ends of the cleaning elements are connected to drive chains. Each chain is driven by a sprocket on a common shaft and a flange mounted gear motor.
At the end of the bar rack cleaning cycle the cleaning elements are positively cleaned by a pivoted comb which reliably discharges the removed screenings into a downstream transport or disposal unit. The easy to access and maintain drive unit is installed above the channel. Due to the screen’s compact design its height above floor is very low.
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Benefits of the HUBER RakeMax®-hf (high flow) Multi-Rake Bar Screen
- High hydraulic capacity due to the extremely flat installation angle of the bar rack
- High operating reliability due to defined meshing of the cleaning elements with the bar rack
- No accumulation of disturbing material due to material removal from the screen starting virtually right at the bar rack mounted flat to the channel bottom
- Compact design
- Easy-to-retrofit into existing channels
- Completely odour-encased screen with easy to remove covers
- Installation without channel recesses possible
- Not hindered by gravel or gritt
- Simple and easy-to-access drive unit
- All parts in contact with medium (except the drive and bearings) are made of immersion pickled stainless steel.
- High screenings discharge capacity
- Uncomplicated later change of the bar spacing
- No additional consumables such as service water required for plant operation, except electric current