characteristic： 1、closed case,long life,compact dtructure 2、helical hard-teeth,low noise,high efficiency 3、linght weight,favorable adaptability 4、can be added breaker technical data ： input power： 0.12KW-4KW output torque ： 56N.m-1550N.m transmission ratio： 3-200 mounting sructure： foot-mounted、flange-mounted