Adapt to f5～f7 coal rock protective layer thin coal seam shearer-MG450/1100-WD This type of shearer pioneered the advantages of two types of shearers: normal riding and suspended body. It adopts a conventional body H-shaped rocking arm layout, effectively solving the contradiction between installed power, coal passing space, and running stability. It has developed targeted vibration reduction strategies and matched vibration reduction schemes, which have improved the working stability the electrical control system. The overall design has a large margin coefficient, high reliability, and a perfect intelligent configuration, which is a high-intelligence and high-efficiency shearer thin coal seam faces. It meets the requirement of a minimum 1.3m mining height and can achieve hard rock cutting of f5～f7. The MG50/1100-WD model has been successfully applied to the Pingmei Shenma Group's No.10 mine. Under the condition of full, it has successfully mined 239 meters smoothly in a month, setting a new historical record for the same rock condition advancement in the group