The shredder blade is an important accessory of the shredder. The quality of the shredder blade directly affects the machine's processing cycle of waste materials. According to the classification of the shredder, the shredder blade is divided into single-shaft shredder blade and Multi-shaft shredder blades. As an important crushing knife on the shredder. According to the shredder structure classification, shredder blades can be divided into single-shaft shredder blades and multi-shaft shredder blades (including dual-shaft shredder blades and four-shaft shredder blades).