Traditionally, the installation of refractory materials is a labor-intensive and time-consuming process, which usually involves manual application methods, such as casting or manual ramming. However, with the development of technology, the Refractory Foundry Gunning Machine appeared in the refractory industry. Fire-resistant gunning machine, also known as fire-resistant shotcrete machine, is a special equipment for spraying fire-resistant materials efficiently and accurately. The working principle of the machine is to mix the refractory with water, and then pump it to the nozzle through the hose, where the refractory is pushed to the surface to be lined at high speed.