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The JZW type thread pile driver is designed to have a hole depth of 24 meters. The hole shape is different from that of a conventional long auger drill. It is threaded (equivalent to one internal thread), and the long auger drill has a cylindrical shape. Compared with the cylindrical hole, the thread-like hole will double the bearing capacity, greatly reduce the amount of concrete poured, reduce the construction cost, and have broad market prospects.
The JZW type thread pile driver has obvious advantages and the production difficulty is much more than that of the long screw pile machine. Because in order to leave a complete threaded pile machine hole in the soil layer, it is necessary to synchronize the rotation speed of the drill pipe with the speed of the falling (or rising) to ensure that the thread is formed, otherwise the thread will be completely destroyed. In response to this technical problem, Fangyuan Group adopted the method of frequency conversion speed regulation to achieve the synchronization requirements.
It is reported that the company has successfully developed a JZW type screw pile machine with independent intellectual property rights.