CD1 electric hoist structure conical rotor motor axial magnetic tension occurred with breeding characteristics, and electric hoist brake wear piece is mounted on the fan wheel brake, locking screw cap and screw the fan motor is fastened to the wheel brake rotor shaft rear end. When you start to surrender magnetic tension spring pressure, is adjacent to one of the rotor and the rotor brake wheel bred fan axial displacement occurs, the brake ring and rear cover torn off and the rotor turn about freely. After power failure, the magnetic tension disappeared, under pressure of the spring effect, the fan wheel and the brake cover brake tight, pinned tapered surface friction occurring bred to obtain braking effect. At rated load bearing braking distance should decline over heavy lifting speed of 1/100, if the cross, should mediation. Mediation, loosen the screws and tighten the locking screw cap to increase spring pressure, a larger braking torque. Mediation gap generally 1.5 m for the best. After repeated can start the motor to the measured axial runout.