Gantry Milling Machine Gantry milling machine, referred to as gantry milling, is a milling machine with portal frame and horizontal long bed. The gantry milling machine can use multiple milling cutters to process the surface at the same time, with high machining accuracy and production efficiency. It is suitable for processing the plane and inclined plane of large workpieces in batch and mass production. CNC gantry milling machine can also process spatial curved surface and some special parts. It is divided into ordinary type and NC type. Some manufacturers have developed digital intelligent Dragon Gate milling with one key conversion between ordinary milling and NC milling, which is more flexible and practical.