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The 2MK2211X60 and 2MK2220x60 CNC vertical honing machines are suitable for machining workpieces such as cylinder liners, various oil cylinders, irregular parts holes, and aircraft landing gear oil cylinders; This series of machine tools is designed with modularity and can be customized with special aperture and depth honing machines according to user needs. Manual and automatic loading and unloading devices, as well as robot automatic loading and unloading devices, can be designed according to user requirements. The standard feed method for honing heads is dual feed, and the worktable is a forward and backward moving worktable.