Our refractory gunning machine for sale are widely used for spraying refractory materials such as kilns, boilers, furnaces, iron and steel plants, cement plants, and degasser linings. Refractory gunning machine is used for hot repair and cold repair of vacuum deaerator lining. This is achieved by spraying the refractory mixture onto the inner and outer surfaces in a highly advanced manner. This operation can be performed automatically or manually, and is completed by two refractory spray guns.