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Spark machine manufacturer: the speed of the high-speed machining center electric spindle

What is a high-speed machining center, high-speed machining center, as the name implies high-speed machining, processing speed is 5-10 times the processing center of the conventional machining center is called high-speed machining center, this type of machining center mainly focuses on processing efficiency and precision. Whether the high-speed machining center can perform high-speed machining depends on the rotation speed of the main shaft and the feed speed of the three-axis. The higher the spindle rotation speed and the three-axis feed speed, the faster the machining speed is. The main influence of machining speed is from the main shaft and three-axis (XYZ). Today, Xiaobian introduces the spindle of the high-speed machining center. The high-speed machining center generally adopts the direct-coupled spindle and the electric spindle, and the high-speed machining center using the electric spindle. most. Next, the small series will introduce the rotation speed of the electric spindle.


 Regardless of the spindle speed used in the high-speed machining center, it is above 12000r/min. The speed of the high-speed machining center with the electric spindle is at least 18000r/min. Since the bearings used in the electric spindle affect the speed, different bearings are used. The speed of the electric spindle is different. There are three kinds of bearings for electric spindles, namely ceramic ball bearings, aerostatic bearings and magnetic bearings. The speed of the electric spindle using ceramic ball bearings is generally between 18000-40000r/min; the speed of the electric spindle using the magnetic bearing is 100000r/min; the speed of the electric spindle using the aerostatic bearing can reach 160,000r/min; The speed of the electric spindle with different bearings is different.


  The machining center spindle has a high technical content and is one of the most important components of the machining center. There are very few domestic manufacturers capable of producing spindles. Therefore, the domestic production of electric spindle speeds is not as high as that of foreign power-generating spindles, and the domestic electric spindles are currently not available. The ability to use aerostatic bearings and magnetic bearings, even if it is used, can not reach such a high speed.


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