1.The brief introductions of the crawler long screw pile driver The crawler long screw pile driver is a kind of pile driving equipment which drives the drill pipe bit to drill holes underground through the power head. It is mainly suitable for the construction of the hole-forming operation in the building foundation engineering. It is widely used in the construction of grouting piles, diaphragm walls, foundation reinforcement and other foundation foundations. 2.The features of crawler long screw pile driver The movement mechanism of the crawler pile driver is driven by the tracked power. The rotating mechanism is driven by the speed reducer with the medium speed hydraulic motor. With the combination of four leg hydraulic cylinders, the pile machine can achieve 360 degrees of rotation. It has the advantages of smooth rotation, no shock, no vibration, good stability of the whole machine and long service life. 3.The technical parameters of crawler long screw pile driver Item Unit Model LXD-6 LXD-8 LXD-10 Rotation angle ° 360 360 360 Maximum borehole diameter mm 300-800 300-800 300-800 Maximum drilling depth m 6 8 10 .6