Papermaking equipment material preparation equipment is the equipment for pretreatment and processing of papermaking raw materials according to the requirements of cooking or pulping process before cooking or pulping. It is divided into non wood fiber material preparation equipment and wood fiber material preparation equipment. The former includes grass cutter, reed cutter and sugarcane pulper, while the latter includes Skinner, chipper, etc.

　　Chipper is a machine for cutting logs required for the production of wood pulp into chips of certain specifications, which is divided into disc and drum types; Digester is an equipment that dissolves lignin in papermaking raw materials into cooking liquid to separate papermaking raw materials into fibers. It is divided into intermittent type and continuous type; Wood mill is the equipment for producing wood pulp. According to the production mode, it can be divided into intermittent type and continuous type. According to the pressure mode of log, it can be divided into hydraulic pressure type and mechanical pressure type;