What is a high-speed machining center? As the name suggests, a high-speed machining center is a machining center that has a processing speed of 5-10 times that of a conventional machining center. This type of machining center mainly focuses on machining efficiency and accuracy. Whether a high-speed machining center can perform high-speed cutting depends on the rotational speed of the spindle and the feed speed of the three axes. The higher the rotational speed of the spindle and the feed speed of the three axes, the faster the cutting speed. The main impact of machining speed comes from the spindle and three axis (XYZ). Today, I will introduce the spindle of high-speed machining centers. Generally, high-speed machining centers use direct spindle and electric spindle, with electric spindle being the most commonly used high-speed machining centers. Next, the editor will introduce the rotational speed of the electric spindle.
The Speed of Electric Spindle in High Speed Machining Center
No matter what spindle is used in the high-speed machining center, the speed is always above 12000 rpm. The speed of the high-speed machining center using an electric spindle is at least 18000 rpm or above. Due to the influence of the bearings used in the electric spindle on the speed, the speed of the electric spindle using different bearings varies. There are three types of bearings commonly used in electric spindles, namely ceramic ball bearings, aerostatic bearings, and magnetic levitation bearings. The speed of the electric spindle using ceramic ball bearings is generally between 18000-40000 rpm; The speed of the electric spindle using magnetic levitation bearings is 100000 rpm; The electric spindle speed using air hydrostatic bearings can reach 160000 rpm; It can be seen that the speed of the electric spindle varies with the use of different bearings.
