this product is for all kinds of fixed belt conveyor, bucket hoist, hoist and other supporting new driving device. Its interior uses planetary cycloid deceleration mechanism, Direct motor exposure to the drum, It has the advantages of large bearing capacity, strong overload capacity, stable transmission, low noise, long life, convenient use and maintenance, safe and reliable operation and so on. Can meet all kinds of reverse stop, glue and other requirements. flameproof outer mounted electric drum with dI、dII AT4、dII BT4. flameproof mark dI suitable for mine with or without coal dust, dII AT4 suitable for the presence of a I、IIA class T2~T4 explosive hazard mixture, dII BT4 suitable for the presence of explosive hazard mixtures in T2~T4 groups of I、IIA、IIB levels