1.Be the special equipment for processing the heat-insulated ALU-door-window, and be used for corner punching of the frames and fans.

2.Have two functions of single acting and linkage which can realize single head working and two heads working together.

3.Be able to finish two corners combination with high production efficiency.

4.Adopt the hydraulic system with strong punching force to make the corner punching high-duty.

5.The clamping and locating device can be moved up and down, which is suitable to every kind of style and sectional materials with wide profile processing range.

6.Design two foot valves, making the pre-compressing and feeding corner combining operated at discretion reducing the wasting rate.