1. Introduction to the shotcrete machine The shotcrete machine is a new type of high-efficiency shotcrete machine, which is mainly suitable for concrete shotcrete operations in 5m*5m cross-section tunnels. This equipment uses a concrete pump to transport concrete to the robot nozzle through a pipeline, and uses compressed air with accelerator to spray the concrete onto the wall of the tunnel to be sprayed. It has reasonable structure, humanized design, reliable performance, convenient operation and maintenance, and long service life. Dust-free, low noise and low rebound rate during operation. This machine greatly reduces the dust concentration next to the machine and at the nozzle, improves the working environment of workers, and reduces pneumoconiosis caused by excessive dust. This equipment has obtained three national patents. 2. Shotcrete machine model representation example: PZ-5B shotcrete machine P: Concrete shotcrete machine Z: Rotor type 5: Production capacity 5m?/h B: Mine explosion-proof motor 3. Product details: Shotcrete machine Purpose Construction shotcrete machines are widely used in engineering construction, mines, tunnels, culverts, subways, hydropower projects, underground projects and coal marsh mine tunnel shotcrete construction operations: various types of industrial furnaces, refractory lining spray molding or Repair: soil transportation and injection during various slope protection and greening construction. Advantages of the shotcrete machine: Direct access to the rotor-type non-adhesive material cavity, smooth material discharge, high efficiency and time saving: four-point elastic compensation compression, good sealing effect, less dust around the machine, long life of wearing parts: using low-pressure high-speed vortex airflow Conveying, overcoming problems such as bonding, pipe plugging and pulse separation and folding during material conveying, the material flow is uniform, continuous and stable: the new nozzle and discharge elbow device improve the spraying effect, with less rebound and high spray layer quality. The machine chassis can be assembled into tire type, skid type and rail wheel type with various gauges.