This machine is one of the necessary equipment for the production of high-grade aluminum alloy doors and windows. It is mainly used for the extrusion connection of 90° joints of side-hung doors and windows with corner structure.

Before forming the corner, put a common corner code in the two connected profile cavities. After the positioning is tightened, the two hydraulically driven punches forcefully rush to the groove of the corner code, causing permanent cold deformation of the outer wall of the profile.

The internal positioning device can be raised and lowered, which is suitable for making large-size doors and windows.