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HUBER Coarse Screen TrashMax® Sturdy screen for coarse material separation

Cable operated coarse screen for:

  • Protection of pumping station
  • Seawater intake
  • Surface water intake
  • Sewage treatment plants

The HUBER Coarse Screen TrashMax® is ideal to be used in pumping stations, as first treatment stage of wastewater treatment plants or industrial plants, and in the inlet to power plants. The screen removes coarse and bulky material and therefore protects downstream systems.

The TrashMax®  excels due to its high-capacity screen rakes and the high operational safety due to efficient and reliable screen rack cleaning.

HUBER Coarse Screen TrashMax®
HUBER Coarse Screen TrashMax®
Screen installation in the inlet of a pumping station with discharge directly into a container
Screen installation in the inlet of a pumping station with discharge directly into a container
HUBER Coarse Screen TrashMax® reliably removes even very bulky debris.
The screen rack is cleaned by very robust high-capacity rakes. The number of cleaning rakes can be variably adapted, removal capacity is then adjustable. Even extremely bulky objects are reliably removed by the screen rakes and transported upwards out of the channel to the screenings discharge
The screen rack is cleaned by very robust high-capacity rakes. The number of cleaning rakes can be variably adapted, removal capacity is then adjustable. Even extremely bulky objects are reliably removed by the screen rakes and transported upwards out of the channel to the screenings discharge
HUBER Coarse Screen TrashMax® in operation
HUBER Coarse Screen TrashMax® in operation
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Design sketch: HUBER Coarse Screen TrashMax®
Design sketch: HUBER Coarse Screen TrashMax®

Design and Function

Design sketch: HUBER Coarse Screen TrashMax®
Design sketch: HUBER Coarse Screen TrashMax®

The cleaning elements, attached to the chain system, can easily be adjusted to different requirements and remove even heavy objects and bulky material. As the cleaning rakes can be variably adapted, removal capacity is then adjustable. The benefit of high cleaning efficiency is especially favourable for high solids loads.

The installation height of the HUBER Coarse Screen TrashMax® above ground level is very small and only dependent, even in case of deep channels, on the installation height of screenings transport or disposal units. Both ends of the cleaning rakes are connected to robust drive chains. Two wear-resistant rollers on each side, running in lateral guiding tracks, ensure true and smooth running of the rakes as they move upwards with the result of reliable intensive screen rack cleaning. Each chain is driven by a sprocket on a common shaft and a gear motor.

The rakes of the TrashMax® screen mesh with the screen rack bars at the bottom dead centre, at first with the back cleaned screen rack and then with the behind front cleaned screen rack. This operation principle avoids the accumulation of material in front of the screen and even extremely bulky objects are reliably removed by the screen rakes and transported upwards out of the channel.

The lower part of the HUBER Coarse Screen TrashMax® consists in the steep conveying section followed by the upper part, the flat discharge section with a small inclination. This screen design guarantees the reliable discharge of screenings into a downstream transport or disposal system.

Benefits of HUBER Coarse Screen TrashMax®

  • Innovative combination of a front cleaned and back cleaned screen rack in a single unit
  • Reliable removal of bulky material with high operating reliability
  • High capacity screen rakes
  • Exact screen rake guidance for reliable cleaning of the front cleaned and back cleaned screen rack
  • Compact L-shaped screen
  • Easy to retrofit into existing channels
  • Installation without channel recesses possible
  • 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.
  • No additional consumables, such as service water, required for plant operation except electric current

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FAQ

Frequently Asked Questions

Machines with a steep installation angle are best suited for such applications.

This screen installation option allows the installation space to be very compact, especially in the direction of flow.

Typical examples are our HUBER Multi-Rake Bar Screens RakeMax® and RakeMax® CF as well as the HUBER Belt Screen EscaMax®, HUBER Coarse Screen TrashMax® and HUBER Grab Screen TrashLift.

The best possible screenings discharge capacity is achieved with screens that have several rakes. The number of rakes can be adjusted to suit the conditions.

In addition, screenings discharge capacity can also be influenced via the discharge speed, e.g. through drives controlled by frequency converters.

 

Case Studies

HUBER Solutions in Operation

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