urea fertilizer machine/fertilizer line Our urea granulation process equipment is jointed developed by our company and research institutes. Its annual output ranges from 30KT to 200 KT. This type of fertilizer equipment utilizes melted-urea as the main nitrogen source. During granulation process of fertilizer production, melted-urea will be mixed with other raw materials by coating on these materials. As a matter of fact, melted-urea has several functions during fertilizer production. It firstly functions as a kind of raw material, and then functions as a liquid to participate in granulating process, and finally produces heat which makes drying process easy.