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The 2MK2215x100 and 2MK2220x100 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 modular in design and can be customized with special hole diameters and depths according to user needs. Manual and automatic loading and unloading devices, as well as robot automatic loading and unloading devices, are 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.