The KSP series concrete wet shotcrete machines are primarily used for railway tunnel engineering. The equipment is easy to operate, has low dust and rebound, protects the environment, and improves the quality of the sprayed layer. The special vibrating hopper allows concrete to smoothly enter the batching system. The standard metering pump accurately adds the rapid-setting agent. Utilizing low-pressure, low-speed vortex air flow for transportation and the principle of close-range jetting, it overcomes issues such as pipeline blockage, pulsation, and segregation, resulting in a uniform and stable jet stream of material. It enhances the quality of the sprayed layer.