Solar Panel Cleaner

The Solar Panel Cleaner for tractor attachment incorporates a hydraulic arm with 5 degrees of freedom, modular industrial brush, water storage and spray tank for wet cleaning, viewing cameras on the brush and optionally, the tractor, and proximity beeper sensors.

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    The Solar Panel Cleaner for tractor attachment incorporates a hydraulic arm with 5 degrees of freedom, modular industrial brush, water storage and spray tank for wet cleaning, viewing cameras on the brush and optionally, the tractor, and proximity beeper sensors.


    The Sacema solar panel cleaner is a system of equipment for the mechanised cleaning of solar panels.
    It’s a complete system divided into:

    1. Solar cleaning brush unit, which is a machine equipped with industrial cylindrical brushes, developed specifically for working width solar panels.
      It incorporates water spray bars, closed-circuit viewing cameras from the cabin, and sensors to control the distance of the brush to the solar panels, as well as a lightweight UV-resistant polycarbonate cover.
    2. Hydraulic arm. This is a steel arm with 5 hydraulic movements or adjustments, which holds the brush at its end, and is connected to the tractor.
      By default, it is coupled to the tri-struts of the tractors, either at the front or at the rear, and is built on a slewing ring that supports the whole arm, which allows the brush to be oriented from -90º to 90º and in this way, to be able to work to both sides. It has 2 cylinders to lengthen and shorten the arm, it has another cylinder to control the pitch of the planer and, therefore, adjust it to the angle of the panels, and it has a 5th cylinder that is able to additionally rotate the end of the arm to the right an additional 90º.
    3. Tractor unit. Compact agricultural tractors, weighing at least 4 tonnes and 2.25 metres wide, are normally used. Optionally, crawler tractors or backhoe loaders are used.
    4. Irrigation unit. This consists of water tanks, which depending on the load capacity of the tractor, 1000, 1500 or 2000 litre tanks are used on the side opposite the cleaning equipment to act as a counterweight. There is a water hose from the tanks to the brush, through the tractor and the arm, which sprays water on both sides of the brush, controlled by electrovalves from the cab.
    5. Display cameras. Cameras are incorporated in the solar cleaning brush, and occasionally in the towing machine, and a display inside the cab of the towing vehicle, so that the user can better monitor the work of the solar cleaning brush.
    6. Proximity sensors. Proximity sensors are built into the brush, which warn the driver when the brush comes too close to the solar panels. The solar panel cleaner can be configured in multiple ways, depending on the size of the solar farm, the aisle gap between the rows of panels, the angle of the panels, their
      arrangement, etcetera.

    If you need any clarification on the solar panel cleaner, please do not hesitate to contact us.

    Why buy?

    The most common size is 4 metres working width, being a fairly large arm/brush system, which requires tractors with sufficient load capacity and stability.

    The cleaner system for solar panels is a set that offers high performance to the companies that maintain and operate solar parks, as a single operator is able to clean thousands of panels for each effective hour of work with the cleaner. As an example, with a 4 metre cleaner on 2 solar panels in parallel, working at 2 km/hour, it is theoretically capable of cleaning 4,000 solar panels per hour.

    The arm and the solar cleaner is controlled by a joystick control arm and hydraulic brush from the cabin itself, which is easily positioned on the panels with its 5 degrees of hydraulic freedom, being a mechanical work that gives a much higher performance than manual cleaning with poles or manual water pressure equipment.

    Data Sheet

    Data Sheet


    What sizes of solar cleaner are available?

    By default, we have 2, 4 and 6 metre systems, although the vast majority use 4 metre systems as it is usual to install a row of 2 solar panels vertically, which means that they are cleaned in a single pass.

    How do I attach the solar panel cleaner to my tractor?

    The system comes as standard to be fitted to the three-point linkage of tractors. The most common configuration is a cleaning arm+cleaning brush at the front of the tractor and the water tank at the rear, although a tractor with sufficient load capacity and stability is required.
    In addition, a water hose has to be routed from the water tanks to the three-point linkage, and an electrical box has to be installed in the tractor cab, with its joystick control, which is powered by the electric power take-off in the cab.

    In addition, the camera display screen and the position sensor equipment must be installed in the cab itself.

    Finally, the tractor needs to have hydraulic connections on the side where the arm is installed to provide at least 20 litres per minute of oil for the brush to rotate at sufficient speed to effectively clean the solar panels.

    Does the cleaner rest on the panels or is it suspended?

    The Sacema solar panel cleaner is suspended and supported by the tractor, which means that it does not put any weight on the solar panels.

    What about antennas, gaps between panels and brackets?

    The industrial cylindrical brushes mounted on the photovoltaic cleaner have enough free length of the filaments to pass over all kinds of obstacles that have solar installations such as antennas and supports, so that the cleaner absorbs this equipment without having to stop working on the cleaning.

    Is it necessary to clean the solar panels?

    Depending on the location of the photovoltaic panels, these are stained to a greater or lesser extent, acting as a screen against the energy cells and reducing their performance.
    To increase and get the most out of the solar farm, it is necessary to clean the photovoltaic panels as often as possible to keep them as clean as possible.

    Do brushes damage solar panels?

    Sacema has selected soft, non aggressive filaments to define the cleaning brushes. Even so, it is recommended to spray osmosis water before the brush works against the panel.
    The brush incorporates water spray bars on both sides of the brush, which are operated one or the other according to the rotation of the brush, which is controlled from the tractor cabin.

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