CNC machine tool, spindle usually adopts frequency control method. At present, there are common and variable frequency drive control, vector control drive of drive and control and direct torque control three control modes. Ordinary scalar variable frequency drive and control mechanical spindle drive control feature for constant torque spindle drive Datong machinery supply, output power and speed is proportional. Dynamic performance of ordinary frequency control is not ideal, poor performance at low speed control, the output power is not stable enough Taiyuan mechanical spindle price and do not have C-axis function. But the price is cheap, simple structure, generally used for high-speed grinders and milling machines and other ordinary. Vector control technology to imitate the DC motor, the rotor magnetic field orientation vector transformation method to achieve drives and controls, with good dynamic performance. Vector control drive torque is great value at just started, plus electric spindle itself is simple inertia is small, so start large acceleration can be achieved instantaneously reach after starting allowed speed limit. This closed-loop drive on and have two rings, which can achieve Feedback position and velocity, and not only has better dynamic performance, but also to achieve C-axis function; whereas the former somewhat less dynamic performance, does not have the C-axis capabilities , but the price is cheaper. Direct Torque Control is following the vector control technology developed a new type of high performance AC speed control technology, which controls a novel idea, system architecture concise, more suitable for high-speed spindle drive, to better meet the high-speed spindle require high-speed, wide speed range, the dynamic characteristics of high speed and stop instantly quasi static characteristics, has become a hot technology in the field of AC drives. Cosmos Machinery spindle current prices, the impact of the main focus of the further development of China's machine tool spindle system has the following three points: First, the quality of high-precision spindle bearing is not very stable country. To this end, I hope to further improve the quality of the bearing industry stability of high-speed spindle bearings, spindle domestic high-performance system can be widely selected domestic brand products, thus effectively reducing the cost of the spindle system. Second, the current domestic high-speed grease also can not meet the rapid development of the spindle system. Finally, the country engaged in the drive controller and magnetic encoder developed units less than normal levels are slightly lower. Spindle cells that produce supporting low selectivity room, and some even feature is not complete, has been difficult to adapt to the full requirements of the user. Proposal can focus on strengthening what these supporting units, making it more able to produce qualified products to meet market demand. Taiyuan spindle production machinery, mechanical spindle, Shandong by Shandong Bot Bot Seiko Seiko Corporation. Shandong Bot Seiko Co., Ltd. (www.jsinfo.com.cn) strong, credible, Shandong Jining machining industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Bot Seiko and you hand into the brilliant, for a better future!