Is there any manufacturer of hollow cup motor in China? Seek similar MAXON brand.

There are several domestic manufacturers of hollow cup motors, but most of them are incomplete. Only Shenzhen Jacky Motor has hollow cup brush motor, brushless motor and four super-power motors. The picture shows MAXON 4 super power motor, and there are similar products in Jacky. In addition to Swiss Banjarmasin and German Faulhaber, foreign customers choose ASSUN MOTOR, which is basically the three PK companies.