Gantry milling machine, referred to as gantry milling machine, is a milling machine with a portal frame and a horizontal long bed. The planer milling machine can be used to process the surface with multiple milling cutters at the same time, and the processing accuracy and production efficiency are relatively high, which is suitable for processing the plane and slope of large workpieces in batch and mass production. CNC planer milling machine can also process space surfaces and some special parts.