In addition, the improved ultrafine roller mill also has the following characteristics:

1. The design of large drainage outlet has increased the production capacity.
2. Small ultrafine roller mill with diameter less than 2.1 meters (excluding 2.1 meters) adopts integral frame, which is convenient for civil construction and equipment installation.
3. Oil mist lubrication device can ensure reliable lubrication of large and small gears. 

The main part of the ultrafine roller mill of SBM Mining Machinery Co., Ltd. is a cylinder with smaller diameter and larger length. It rotates slowly through the transmission device.

The material is fed from the feeding end of the cylinder. In the cylinder, due to the drop impact and self-grinding of the steel ball and the ore itself, the material is crushed. Due to the continuous feeding of materials, the pressure causes the material in the barrel to move from the feeding end to the discharging end.

vertical roller mill: https://www.grinderprocess.com/product/lm-mill.html