• Screening

    For a excellent climate control the screen system is of great importance. Therefore screen drive systems have to be accurate and reliable.

    For a excellent climate control the screen system is of great importance. Therefore screen drive systems have to be accurate and reliable. Huima Specials produces gear systems for operating push pull screens, pull wire screens, twin roll and roll up screens. In all these installations - due to today’s upscaling of the greenhouses - a powerful gear system as well as a very accurate positioning control is required. High precision and easy-to-adjust limit switches which hold their cut-out points over the years, allow an accurate control of the humidity gap. The potentiometer drive guarantees a precise remote control of the screen position.

    For very large screens, Huima has developed the Parallel Drive System, a unique drive system which can operate screens as large as 4 ha with just one gear motor. 
     

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  • Heating Elevation

    For efficient heating the crop heat tubes must be brought as close to the crops or plants as possible.

    For efficient heating the crop heat tubes must be brought as close to the crops or plants as possible.
    In a heating elevation system the crop heat tubes hang on the ideal distance to the crops but can be lifted when needed for instance for water supply, harvesting or soil cultivation.
    Many greenhouses have lift systems; for heating activities (in combination with the wire netting for the plants) the system is lifted simultaneously with the crop growth. It might lift to the top several times a day for instance for water supply.
    It goes without saying that this lifting needs a most reliable motor. As a decisive feature the motor has to be 100% self-braking and capable of withstanding these high loads.

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  • Elevation systems

    To ensure the highest efficiency possible, growers seek to use every square meter in their greenhouses.

    To ensure the highest efficiency possible, growers seek to use every square meter in their greenhouses. Cleaning and disinfecting activities are therefore more complicated. This can be solved by lifting all the equipment such as crop heat tubes, long layers with wire netting and cultivation gutters. Once lifted, the empty greenhouse floor will allow fast and easy cleaning and easy change of the plastic groundcover.
    Growers seek to place as many gutters as possible. 
    When needed for instance for intercultivation, harvesting or soil cultivation, the gutters have to be lifted or moved aside in turn to get on to the crops.

    Some crops (e.g. cucumbers) require a high-wire cropping system, where large areas of equipment will be lifted at once to clean the greenhouse.
     

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  • Ventilation

    For the various ventilation systems in both Venlo houses and in wide span houses, Huima Specials has a wide range of drive components such as drive motors and gearboxes to meet all the requirements.

    For the various ventilation systems in both Venlo houses and in wide span houses, Huima Specials has a wide range of drive components such as drive motors and gearboxes to meet all the requirements.

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  • Open roof houses

    With the open roof house a Venlo peak opens at the ridge. The roof hinges at the gutter.

    With the open roof house a Venlo peak opens at the ridge. The roof hinges at the gutter.
    Due to the great roof surfaces, the forces on these roofs are high. For safety reasons the roof shall be closed within a minimum of time for instance in case of rain or storm .Therefore the drive system needs slowly opening and fast closing drive motors. The drive motor will be self-braking under all circumstances. Especially for the open roof system Huima Specials designed a range of motors and heavy-duty racks & pinions for a 100% reliable drive system.

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