The Third type: internal climbing concrete distribution machine Internal tower self jack up concrete placing boom machine is the distribution equipment for concrete construction of high-rise buildings. The spreader is fixed in the elevator shaft and is equipped with an automatic climbing mechanism. It uses hydraulic cylinders to lift and automatically climb in the elevator shaft to make the spreader rise with the rise of the floor, saving time and labor and high efficiency. Saintyol DAWIN Machinery concrete spreader concrete placing boom It is a special shipboard Concrete placing Equipment designed for harbors, docks and other construction projects. Dedicated concrete pouring and distributing equipment specially designed for railway beam manufacturing field, nuclear power and other engineering constructions; mobile Z-shaped three-section folding arm of concrete spreader with 360 ° rotation, which can be pitched and extended, within the length of the boom Achieve full-scale pouring of three-dimensional space without casting dead angles, and can easily realize concrete pouring of various construction operations such as walls, pipes, columns, and piles.