The CNC Beam drilling machine developed by our company is specially used for 3D drilling and clamping of H-shaped steel with a size of 400x200 - 1250x800. One clamping can complete the processing of all holes on three sides. This machine is especially suitable for group hole processing. One feeding of the feeding trolley can complete all empty processing within the range of 800 meters of H-shaped steel. Within the range of 800 meters, the three power heads operate independently without interfering with each other. It has the characteristics of high automation, high efficiency, high precision and compact structure.