Xqm series planetary ball mill is the requisite equipment for mixing, fine grinding, small sample preparing, new product development and small volume high-tech material production. The product has small volume, complete function, high efficiency and low noise. It is the ideal facility to acquire research samples for research institutes, universities as well as enterprise laboratories (can acquire four samples in one experiment). If mated with vacuum ball milling tanks, it can grind samples in vacuum status. The product is extensively applied to in the fields of geology, mining, metallurgy, electronics, construction material, ceramics, chemical engineering, light industry medicine, environmental protection etc. Technical parameters: Drive mode: gear drive and belt drive Operation mode: two or four grinding tanks working together Maximum loading capacity: 2/3 of the capacity of milling tank Feeding granularity: soil material 10mm, other materials 3mm Output granularity: minimum 0.1um Rotational speed ratio (revolution: rotation): 1:2 (0.4l, 2l, 4l);1:1.5(12l, 20l) Rotation speed: 0.4l:0~600rounds/min; 2l:0~580rounds/min 4l:0~530rounds/min 20l:0-280 rounds/min Speed regulation mode: variable-frequency-control-type and program-control-type stepless speed regulation; manual or automatic timed positive or negative revolving Max. Continuous operating time (full-load): 72 hours Carton dimension: 760*490*570mm, it is about 120kg including the package.