Process Introduction The biomass pretreatment shredder system integrates a complete set of process equipment such as crushing, uniform feeding, and molding. The two-stage crushing equipment disposes the material into a smaller particle size, greatly improving the efficiency of the molding machine. The modular design of the molding machine production line ensures production stability with each independent production. The production line can be designed with negative pressure dust collection as a whole, which is safe and environmentally friendly.