Maximum diameter 10mm～400mm Number of gears 5～999 Modules 0.5～8.0 Skew degrees Maximum workload 300Kg Grindstone operation speed 1000～4100rpm Grindstone 1～7 Recent changes to the machine’s structure have helped improve its rigidity and control capability. Newly developed grindstones also help shorten production times. With the RZ400, you can make high-precision gears in about half the time than with the previous RZ362A model. Low Noise Shifting This helps reduce grinding threads produced from previous grinding methods and achieves low-noise gears. Ghost noise created during the fourth stage is eliminated. A specific grinding method, called Cool Cutting, makes face stress intensity stronger from previous methods.