LM series sand powder vertical mill, also known as pre-grinding mill, is a large-scale high-efficiency and energy-saving sand powder preparation product developed by Liming Heavy Industry in combination with its own more than 30 years of research and development and manufacturing experience.

LM vertical sand powder mill is an ultra-fine sand making and grinding equipment. It is mainly suitable for the pre-made sand powder process before crushing mineral materials such as metallurgy, building materials, chemicals, and mining. It can also be used for sand making or fine sand production. It can treat limestone, dolomite, calcite, quartz, marble, coal gangue, granite and other minerals with Mohs hardness below level 7, density between 1.4 and 4.6, compressive strength below 260Mpa, non-flammable and explosive minerals, and non-corrosive minerals. Processing of brittle materials.