General motor work is rotating. However, the use of rotating motor-driven vehicles (such as motor vehicles and trams in cities, etc.) need to do linear motion, with rotating motor-driven parts of the machine to do some linear motion, which requires the increase of the rotary motion into A linear motion of a set of devices, can not directly use the linear motion of the motor to drive, thus eliminating the suit, people put forward the problem, has now made a linear motion of the motor, that is, linear motor.

　　Linear motor and rotating motor compared to the advantages of the following:
　　First, the structure is simple. Linear motors do not need to go through the intermediate conversion mechanism and produce linear motion, which greatly simplifies the structure and reduces the motion inertia. It also improves the reliability, saves the cost and makes the manufacture and maintenance easier. Its first class can directly become part of the organization, this unique combination, making this advantage further reflected.
　　Second, high positioning accuracy. Where linear motion is required, the linear motor can achieve direct transmission, which can eliminate the various positioning errors caused by the intermediate link, so the positioning accuracy is high, such as the use of computer control, but also can greatly improve the positioning accuracy of the whole system.
　　Third, suitable for high-speed linear motion. Because there is no centrifugal force constraints, can achieve a higher speed. And if the initial, sub-level with air cushion or magnetic pad to save the gap, no mechanical contact movement, so the movement part of the friction and noise. In this way, the transmission parts are not worn, can greatly reduce the mechanical loss, thus improving the overall efficiency, but also improve the system sensitivity, fastness and followability.
　　Fourth, safe and reliable work, long life Linear motor can achieve non-contact transmission force, mechanical friction loss is almost zero, so less failure, maintenance-free, and thus work safe and reliable, long life.
　　In recent years, with the rapid development of automatic control technology and microcomputer, the positioning accuracy of various automatic control systems has been put forward higher requirements. In this case, the traditional rotating electric machine is combined with a set of changing mechanism Linear motion drive device, has been far from meeting the requirements of modern control systems. To this end, many countries in the world have been researching, developing and applying linear motors in recent years, making the application of linear motors more and more widely.
　　Kunshan Tongmao Electronics Co., Ltd. （www.tmmotion.com/english/index.asp）is a set of linear motor technology research and development, linear motor, voice coil motor, precision linear platform and marketing as one of the manufacturers. Our linear motors have the advantages of rotating motors that can not be compared with the gain of the user's approval, and we believe that the use of linear motors will be more and more extensive.