Hollow cup motor working principle: hollow cup motor rotor structure breaks through the traditional forms of the structure, using the coreless rotor, also called hollow cup type rotor, the novel rotor structure completely eliminated due to the formation of core eddy current power loss, and the rotational inertia were greatly decreased, fast response speed that has control characteristics and good servo performance. Features: 1) energy-saving features: high energy conversion efficiency, the maximum efficiency of more than 70%, and some products can reach 90%. 2) control features: starting, rapid braking, fast response, mechanical time constant is less than 28 milliseconds, some products can reach less than 10 milliseconds, in the state of high-speed operation in the region under the recommended operation, can also turn on the sensitive regulation. 3) dragging characteristic: the operation stability is very reliable, the fluctuation of the speed is very small. Since 2001, our company has been devoted to R & D and production of hollow cup motor, and its technical capability has been very mature. Is worthy of our customers trust manufacturers!