The pile driver includes a hydraulic step-type pile frame and a drilling system. The pile frame uses a hydraulic walking chassis with a high degree of automation. It can move on its own and then rotate 360 degrees. Equipped with four hydraulic support legs and a walking cylinder, it assists in walking and turning, enhancing the stability of the entire machine during construction. The whole machine can be moved. The column is a foldable box-type column with flange connections. The column is made of two thick plates, bent using a large bending machine. It is welded together from two weld seams. At the same time, every 60cm, four stiffening ribs are welded inside the column for fixation, increasing the column's resistance to torsion and bending. The column is controlled by two telescoping hydraulic cylinders. The drilling system includes a power head and drilling tools. The output shaft of the power head and the screw drilling tools are of a hollow type. The pile driver uses a long screw to form holes. Concrete or slurry is pumped through the center pipe of the drill rod to the construction of concrete piles, completing the task with one drilling machine at a time. It can also be used for dry drilling, grouting replacement, and deep mixing construction methods after changing the drilling tools. Pile driver prices: Hydraulic walking screw pile drivers are priced between 400,000 to 1,000,000 yuan. Crawler screw pile drivers are quoted between 200,000 to 1,000,000 yuan.