90 Hydraulic double nozzle wet spraying machine is a mechanical device used for concrete spraying operations. It adopts hydraulic drive, with strong power and stable performance. By working with two nozzles simultaneously, it can improve spraying efficiency and is widely used in mining, shafts, highways, railways, infrastructure, slopes, bridges, tunnels, and other projects. It utilizes hydraulic pump thrust to alternately move the oil cylinder for feeding, and after accelerating the curing agent with compressed air at the nozzle, it sprays onto the surface being sprayed. The equipment has stable performance, few wear parts, and low maintenance costs. It has a high degree of automation and is easy to operate. The delivery volume can be adjusted as needed, and the amount of accelerator added is infinitely adjustable. It is equipped with an automatic lubrication system to extend the service life of the equipment. In addition, the hydraulic concrete spraying machine is compact and has a wide range of applications, with small spraying pulsation, good continuity, large material delivery volume, strong power, energy-saving, environmentally friendly, and time-saving, making it the best choice for new era infrastructure construction.