With the rapid development of China’s national economy and the continuous improvement of people’s living standards, as well as the improvement of architects’ design concept of “humanity in architecture”, buildings are increasingly developing towards high-rise, high-end, and multifunctional directions. Therefore, building curtain wall products will inevitably develop towards high-tech and multifunctional directions in order to adapt to people’s increasing awareness of environmental protection and energy conservation, and meet the market’s demand for building curtain wall functions.

Architectural curtain walls have made significant progress in China, with some systems reaching or surpassing foreign levels, resulting in a large number of high-quality art projects and high-tech projects. The main types of keel for building curtain walls are steel keel and aluminum profile keel. Aluminum keel is mostly T-shaped and is an exposed frame. And steel keel is generally U-shaped or C-shaped, which is a concealed frame.

According to the national standard GB/T5237-2017 for aluminum alloy building profiles, the country has made clear requirements for the cross-sectional dimensions, profile angles, profile surface clearances, profile curvature, profile twist, and allowable deviations in fillet radius of building profiles. The surface of the profile should be clean and free from defects such as cracks, peeling, corrosion, and bubbles.

The high-precision CNC-EVO CNC bending machine successfully developed by Sahinler adopts a unique core algorithm to perfectly solve quality problems such as wrinkles, bulges, and unevenness that are prone to occur during the bending process of traditional bending equipment. The bending quality meets or exceeds the national standards. A true CNC control system can generate motion trajectory programs by importing CAD drawings, placing straight materials, and processing them according to the given graphics, completely solving the dependence on skilled workers.

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