Aluminum motor with cast aluminum housing to replace the traditional cast iron housing motor. It has a beautiful appearance, small size, light weight, simple structure, easy maintenance, the production process more environmentally friendly, high efficiency, easy to transport, etc., the majority of users. But aluminum processing requirements, the chassis, the end cap concentricity, and aluminum non-conducting magnetic field, the magnetic circuit of the motor yoke relative than ironclad motor saturation, the electromagnetic force wave the relatively larger, resulting in aluminum motor noisy, to the production and manufacture of high-quality aluminum housing motor to increase the difficulty of the process.