The YZWB type explosion-proof external-mounted electric drum is a new type of drive unit for various fixed belt conveyors, bucket elevators, winches, and other equipment. It features a planetary cycloidal reducer structure internally, allowing the motor to be directly connected to the drum without exposure. It boasts high load-bearing capacity, strong overload resistance, smooth transmission, low noise, long service life, easy maintenance, and safe and reliable operation. It can meet various requirements such as reverse brakes and rubber lining. The explosion-proof external-mounted electric drum has explosion-proof markings of dⅠ, dⅡAT4, dⅡBTA. dⅠ is suitable for mines with methane or coal dust, dⅡAT4 is suitable for places with explosive mixtures of Group T2~T4 of Class I, II A, and dⅡBT4 is suitable for places with explosive mixtures of Group T2~T4 of Class I, II A, and II B.