Released high-precision, high-efficiency hob machines "GE15HS" and "GE25HS".

In June 2021, we launched the new hob machines "GE15HS" and "GE25HS," which emphasize high precision and high efficiency. The GE15HS accommodates gears with a maximum diameter of 150mm and employs a high-speed, high-torque direct drive motor for the spindle, increasing the maximum spindle speed to 6,000 min-1, three times that of conventional models. Additionally, the table axis, which holds the workpiece, features a dedicated table that achieves high-efficiency machining by combining high rigidity with high-speed rotation, capable of handling thrust loads necessary for efficient processing. Furthermore, machining with carbide cutting tools achieved a surface roughness of Ra0.4 or less, comparable to gear grinding. On the other hand, the GE25HS accommodates gears with a maximum diameter of 250mm. To ensure high-efficiency machining, it incorporates a high-speed, high-power spindle that eliminates the impact of temperature rise on machining accuracy during high-speed rotation, as well as a standard high-rigidity table equipped with a backlash elimination device for the table master gear. The motor torque and maximum spindle speed have been increased to approximately 1.5 times that of conventional models, reducing machining time by 42%. Moreover, by combining our new materials and coatings for cutting tools, stable mass production machining is possible even in high-speed areas exceeding cutting speeds of 400m/min.


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Special hob machine designed for high torque and high efficiency processing, ideal for mass production lines of gears for electric vehicles and more.