The differences and advantages between precision electric spindles and mechanical spindle units enable you to better choose and use them. First, we need to explain the electric spindle series. There are five main categories and more than ten series of electric spindles. The rated speed ranges from 600 revolutions per minute to 110000 revolutions per minute, and the power ranges from 0.05KW to 40KW. The support of the spindle includes high-speed precision angular contact ball bearings, ceramic ball bearings, magnetic levitation bearings, etc. Lubrication methods include grease, oil mist, oil air, etc., and electric spindles can be specially designed for users in different situations.

The advantages of the present invention are: integrated spindle and motor, compact structure, easy installation, space saving, no reduction in intermediate transmission, high efficiency, low vibration, low noise, smooth motion, and long service life of spindle bearings at the same speed; Easy to achieve high speed, high precision, and high dynamic and static stability; Modern control technology and motor optimization design can meet the requirements of different working conditions and loads. The five categories are: electric spindles for carving and milling, electric spindles for grinding, electric spindles for machining centers, electric spindles for lathes, and electric spindles for special purposes; The mechanical spindle unit provides users with standard products, modular design and easy installation, and good interchangeability. The spindle unit undergoes strict precision machining, fine assembly, and overall dynamic balancing, resulting in high precision, low vibration, and smooth operation. Before leaving the factory, it has been fully run in and passed professional testing, with stable temperature rise and reliable quality. It is mainly divided into machining center mechanical spindle unit, CNC lathe mechanical spindle unit, external cylindrical grinder loading and unloading spindle unit, and internal cylindrical grinder mechanical spindle unit.

The classification of machine tool electric spindles includes high-speed precision rolling bearings and air static pressure bearings for spindle support; Lubrication methods include grease, oil mist, oil and gas, etc. The output characteristics of an electric spindle come in two forms: constant torque and constant power. Electric spindle is a new technology in the field of CNC machine tools that integrates machine tool spindle and spindle motor in recent years. The main transmission system of high-speed CNC machine tools has eliminated pulley transmission and gear transmission. The spindle of the machine tool is directly driven by a built-in electric motor, thereby shortening the length of the main transmission chain of the machine tool to zero and achieving "zero transmission" of the machine tool.