From the dawn of agricultural history, men have invented tools and techniques for separating the wheat from the chaff.

MAROT has been part of this process for more than 80 years.
Specialist in grain cleaning and seed sorting, MAROT owes its fame to the originality of its rotating drum system used in the agro-industrial environment both in Europe and further afield.
MAROT offers the user a reliable and efficient technology, which is continuously being improved by its technicians.
A full range of cleaners carefully designed to meet the particular requirements of each user.


Rotating sieve     Possibilites uses depending on the grids used, sieve angle adjustment and rotation speed
    Due to the continuous movement and lack of vibrations, each grain or particle enters a
    perforation more easily. On a flat sieve, the vibrations of the grid cause the grains to
    rebound which makes it more difficult for them to enter a perforation.
    This is why rotating drums are used in applications where precise calibration is important.
    The absence of vibrations means there are no dynamic forces and the rotating sieve may
    be installed on any existing platform. A flat sieve requires a reinforced structure.
    When sorting and grading grains, the work carried out by the grid in removing small
    waste products and broken grains using small perforations is particularly important.
    The efficiency depends to a large extent on the efficiency with which the device clears itself.
    With a flat sieve, the lower grid cannot be examined during operation and the
    weight of the grain layer prevents it being cleared efficiently whether brushes,
    brushes, rollers or other systems are used.
    whether brushes, rollers or other systems are used.
    With a rotating drum, the cylinder clears itself at the top of its run where there are no longer
    any products present and the grain falls back almost by itself.
    With a flat sieve, the top grid can only remove large particles and the bottom grid the
    broken grains and fine particles. With a rotating cleaner, each section of the grid can be
    used either to remove large or fine particles according to the requirements of an easily
    modified chart.
    For grading, the number or grids determines the maximum number of grades.
    With a flat sieve, increasing the speed and slope causes the grains to bounce off and
    reduces the precision.
    Using a rotating drum, changing the speed and slope makes the product more fluid,
    improves precision and performance by giving a greater degree of control.
    The flexibility of the rotating drum allows it to be used where there is a large and
    difficult separation or calibration range (e.g. mechanical delinted cotton, very damp
    maize, glass beads, etc.). The same machine can often be used in a range of applications
    from fine grading to high flow-rate pre-cleaning.
    PLC-assisted operation
    PLC with touch screen help to optimize the main settings:
    airflow aspiration, grain curtain, variable speed and slope, support with grids selection.


Prénettoyeur MAROT

   The pre-cleaner removes large waste products from

   the raw product at high speed, when received and

   before drying, storing or sorting.


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Prénettoyeur MAROT
Nettoyeur calibreur MAROT

   The cleaner-grader combines a suction system and

   grids to give maximum flexibility of use for all products.


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Nettoyeur calibreur MAROT
Calibreur MAROT

   The grader uses the precision of a rotating system

   to the full to separate grains according to their size.


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Calibreur MAROT
Caisson d'aspiration MAROT

   The suction cleaner removes and separates

   lightweight products


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Caisson d'aspiration MAROT
Boîte de dépoussierrage MAROT

   In-circuit dust removing systems accept variable

   flow rates.


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Boîte de dépoussierrage MAROT



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