A concrete sprayer, also known as a shotcrete machine, is a machine that mainly uses compressed air to continuously transport concrete through a material chamber along a conveying pipeline and spray it onto the construction surface. There are two types of sprayers: dry (PZ type) sprayers (as shown in the right figure) and wet (SP type) sprayers. The former is dry mixed and stirred by pneumatic conveying, mixed with pressure water at the nozzle, and sprayed out; The latter is transported by pneumatic or concrete pumps to deliver the concrete mixture and sprayed out through nozzles. Widely used in underground engineering, hydropower engineering, tunnels, culverts and other shotcrete construction operations.

A concrete sprayer, also known as a shotcrete machine, is a machine that mainly uses compressed air to continuously transport concrete through a material chamber along a conveying pipeline and spray it onto the construction surface. There are two types of sprayers: dry (PZ type) sprayers (as shown in the right figure) and wet (SP type) sprayers. The former is dry mixed and stirred by pneumatic conveying, mixed with pressure water at the nozzle, and sprayed out; The latter is transported by pneumatic or concrete pumps to deliver the concrete mixture and sprayed out through nozzles. Widely used in underground engineering, hydropower engineering, tunnels, culverts and other shotcrete construction operations.