DJB1000 hinged roof beam metal long beam

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The hinged roof beam is a hinged roof beam, which is made up of butt-welded beams. It can be used with various types of single metal pillars to form a metal bracket for horizontal and horizontal installation in coal mines. A high-strength roof beam for supporting gently sloping mining working faces. Because this kind of roof beam can cantilever support the roof above the conveyor road in front of the coal wall of the working face, there is a large unsupported space between the coal wall and the pillars. Therefore, it provides conditions for the use of new coal mining machinery and flexible transporters to achieve general mechanization of coal mining, which is a necessary supporting equipment for high-end general mining and new high-end mining technology