The system is composed of micro - crusher host, brake kelon, pulse dust collector, fan and so on. Raw materials should be screened and magnetic separated before entering the machine, and pre-crushed to a particle size no more than 1mm and water content no more than 12.5% if necessary.

The feeding speed can be adjusted in the range of 30~300r/min in order to obtain the appropriate load and working parameters of the main motor. The grading wheel speed can be stepless adjusted in the range of 245~2450r/min. The grading wheel is driven by electromagnetic speed regulating motor. Adjusting the speed of the grading wheel and the size of the air volume can change the particle size of the finished product, reduce the speed of the grading wheel, the particle size of the finished product becomes coarse, otherwise it becomes fine. The volume of air flowing through the machine increases, and the finished product thickens, whereas it becomes fine. Change the opening degree of butterfly valve can adjust the air volume and pressure of the system.

When the particle size of the finished product of the crusher is changed, the load of the main motor will change significantly. At this time, the feeding amount of the material (that is, the productivity of the micro powder machine) should be changed accordingly to make the main motor work at close to the rated load and avoid motor overload. For example, in order to make the particle size of finished products become fine, increasing the speed of the classifier and reducing the air volume will lead to increased material retention (discharging capacity), and the current value (load) of the main motor and the classifier motor will increase, so it is necessary to adjust the feeding amount.