Cylindrical voice coil motor is one of the main products of Kunshan Tongmao Electronics Co., Ltd. Since the of the company, Tongmao has successively launched hundreds of standard models of cylindrical voice coil motors. In addition, Tongmao can also provide customized services for voice coil motors according to customer needs. 

    The cylindrical voice coil motor is the same as other types of voice coil motors, which are composed of a moving part and a part. The moving part includes a bobbin and a coil (the coil is made of copper wire, and the bobbin is usually made of aluminum), and the part includes a shell and a magnet. Although the structure of the cylindrical voice coil motor is generally the same, there are still differences in detail. Some cylindrical voice coil have a through hole, while others do not. Below, I will explain this with TMEC0070-015-000 andTMEC0003-003-00A as examples. As shown in the figure, TMEC0070-01-000 has a through hole with a diameter of about 10mm in the middle, and the two small holes are the positions of the mounting screws.TMEC0003-003-00A has three mounting screw holes. 

     So what is the function of this through hole? In fact, depends on the customer's needs. Some customers need light transmission, so they need this through hole. Some customers need to add their own shaft, so they need this hole. If there is no special need, it doesn't matter much whether there is a through hole or not. Kunshan Tongmao Electronics Co., Ltd has been deeply involved in the research and development and intelligent manufacturing of voice coil motors for more than ten years. 

      Tongmao's voice coil motors are all made according European and American technical standards and processing technology. Welcome to pay more attention. 

      This article is originally created by Kunshan Tongmao Electronics Co., Ltd. (wwwmmotion.com). Please indicate the source when reprinting.