重庆长基科技有限公司（简称BTL），公司科研团队经过多年对空心杯电机核心部分——空心杯绕组技术的研发，已开发出大尺寸空心杯绕组全自动绕线机，打破了国外空心杯电机生产企业对此项技术的长期垄断，是目前国内大尺寸空心杯电机生产企业唯一掌握此技术的制造商，科研团队在此基础上研发出一套的空心杯电机计算方法，所设计研发的无刷空心杯电机已达国际领先技术水平。
公司现阶段主要研发与生产大尺寸（外径16mm—100mm）、大功率、多极数、高转速（可达12万转/分钟）、Zui高效率可达93%的无刷空心杯电机，其产品已广泛运用到、医疗、智能装备、机器、新能源汽车、电动工具等领域。
Chongqing Changji Technology Co., Ltd. (BTL) has developed alarge-sized coreless motor, which represents a breaking oflong-term technical monopoly by the counterparts overseas. Ourcompany stands for the only manufacturer holding this patent inChina, due to years of our R&D team’s effort on researchingcoreless motor winding technology. Our brushless corelessmotor, adopting a new algorithm, also meets the advancedinternational standard.
We now focus on developing and producing large-size(O.D16mm-100mm) and high-power brushless coreless motors whichfeature multipole mode 、high speed(up to 120thousand r/min)and top to 93% efficiency. It has widely used in military, medical,AI and machinery industry, as well as new energy vehicles, electrictools, etc.