The construction site uses a high-power dry spray machine, which is an efficient concrete spraying equipment. It is usually equipped with a high-power motor or other power devices, such as a 7.5KW motor, which can significantly increase the spraying volume, reaching up to 6 cubic meters per hour or more, with a horizontal delivery distance of up to 150 meters and a vertical delivery of 40 meters. Its structural design is reasonable, with a direct rotor type dry bonding material chamber that allows for smooth discharge, and four-point elastic compensation pressing ensures good sealing effect, resulting in less dust around the machine and a long lifespan for wear parts. It is widely used in construction projects, mines, tunnels, and other construction scenarios, effectively improving the construction efficiency and quality of sprayed concrete.