Big size industrial sliding doors, crane doors

  • If a crane runway is installed in a building but continues outside as well, the main problem is to separate the building part above the runway from the outside.

    The application of a special crane door solves this problem. Besides the weatherproof closing of the opening above the runway it is very important that the crane door cooperates with the cranes on the runway.

    For that the control system of the crane door has to interfere with the cranes’ control system when needed. Outside and inside the crane door optical bumpers are needed which prevent collisions when the door is closed. Further signalers are needed on the runway to prevent that a closing order is given while the door is open, and a crane just passes through it.

  • The crane door can open upwards or tilt around a fix joint. In both cases reliable double brake lifting gear hoists the door panel. The hoists are equipped with adequate fall arresters.

    Big size doors often serve as safety and fire protection, too. Because of that the control of the door must be connected with the fire protection system and it must be guaranteed that the door can be moved in case of power blackout (by permanent supply or hand elements).

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