Which types of stone grinding mill is good?

Stone grinding mill do not mean that the grinding mills are made by stones, means that industrial grinding mill machines are made for pulverizing various kinds of stones, rocks, ores, minerals and so on.
There are many types of stone grinding mills, like ball mill, jet mill, roller mill, vertical mill, and other kinds of stone grinding mills. Which types of stone grinding mill is good? It should compare them.
Firstly introduce HGM series micro powder stone grinding mill to you, it is a kind of roller mill. The features of micro powder stone grinding mill are the following:
1. The stone grinding mill of HGM is high efficient (twice as much as jet mill, mixing grinder and ball mill)
2. The spare parts of HGM stone grinding mills can serve much longer time (2-3 times longer than that of impact mill or turbo mill.
3. High safety and reliability of the HGM stone grinding mill (no rolling bearings and screws in the grinding cavity, so no problems caused by the wear of bearings or screws)
4. The HGM series Stone Grinding mills are characterized by high fineness (final size: 325-3000 mesh, D97<5 micron)
5. Environment-friendly
Raymond mill also be called high pressure suspension grinding mill, is a kind of roller mill, is suitable for processing various non-flammable and non-explosive mineral materials with Moh’s hardness less than 9.3 and humidity less than 6%, it is widely used in the fields of metallurgy, construction, chemical industry, mining, highway construction etc,. The granularity of the finished powder size can be adjusted between 50 and 325 mesh (315-45 micron). Examples of processing materials include quartz, feldspar, barite, calcite carbonate, limestone, talc, ceramic, iron ore, carborundum, bauxite, rock phosphate, coal and other materials, total about 400 kinds of materials.