Cut materials exceeding 60mm using a hay cutter or crush them with a grinder, with the particle length and moisture content within the specified range; The finished product is formed by evenly feeding the material into the material mouth above the molding machine by a feeding machine (belt conveyor) or manually pressing it into shape. From the source of raw materials to the use of fuel, the process is: material recovery → cutting → automatic metal removal during loading → pressing → forming → output → cooling → transportation → biomass power plants or small boilers or civilian use.

Straw machine refers to a machine that uses agricultural crops such as corn straw, wheat straw, cotton stalks, straw, rice husks, peanut shells, corn cobs, tree branches, leaves, sawdust, and solid waste (such as edible mushroom residue, wine residue, furfural residue, etc.) from rural areas as raw materials, which are crushed, pressurized, and densified to produce "straw coal".