There are many types of granulator, and the specific use is very different. It is recommended to use the opposite roll extrusion granulator with strict particle size control, and the organic fertilizer drum granulator with general particle size requirements and large output is recommended.The equipment included in an organic fertilizer production line includes: fermentation tipping machine, pulverizer, blanking machine, horizontal mixer, organic fertilizer granulator, dryer, cooler, screening machine, weighing and packaging machine. This set of organic fertilizer production line can be used to produce granular organic fertilizer and powdered organic fertilizer. For example, the annual output is 10 million tons of organic fertilizer, and the equipment investment of an organic fertilizer production line is about 300000-450000. The annual output of organic fertilizer is 80000-100000 tons, and the equipment investment of organic fertilizer production line is about 150000-200000.