Not all factories use only one type of industrial dust collection equipment, and different types of factories require different vacuum cleaners. A simple example: metal dust industry: metallurgical plants, forging plants, hardware plants, steel plants, etc. All factories represented by these industries are more suitable for explosion-proof dust collectors. Ordinary high-power industrial dust collectors are not suitable for these places, because they cannot withstand the high temperature of metallurgical plants, and it is easy to clean motors, motors, etc. It generates heat and then rubs against metal dust to cause a fire. The explosion-proof vacuum cleaner is explosion-proof for the whole machine, can withstand thousands of degrees of high temperature, and has enough suction power, which is very suitable for metal factories. In addition, the organic dust industry is suitable for anti-corrosion vacuum cleaners; the inorganic dust industry is suitable for high-power industrial dust collection equipment; fiber dust is suitable for vacuum cleaners (textile factory vacuum cleaners, etc.).