Semi automatic hydraulic punching machine Function characteristics: It is suitable for punching of various profiles and stainless steel in continuous operation. It has a precise scale positioning rod, which does not need to draw lines in continuous operation. Single and double holes are freely adjusted. The dies are interchangeable, and the loading and unloading is fast and convenient, simple, and the structure design is compact and compact. The pressure output by the hydraulic system drives the die in the oil cylinder to move towards the center, so that the inner diameter of the pressed steel pipe is shortened synchronously after completion, and the process of shrinking the steel pipe from coarse to fine is reached, and then the butt joint of steel pipes of the same specification or different specifications is realized. semi-automatic Hydraulic punching machine It is widely used in the construction of accessories, greenhouse, municipal construction, auto parts and other professions, and more and more professions are gradually using pipe shrinking machines for technical innovation, such as the use of pipe shrinking machines in the production of outdoor tents with steel and aluminum structures.