90D+ hydraulic wet spraying machine is a machine, electricity, and hydraulic three-in-one device, widely used in mines, shafts, highways, railways, infrastructure, slopes, bridges, tunnels, and other projects. (There are two power options: diesel version/electric version) It utilizes hydraulic pump thrust to make the oil cylinder move alternately for feeding, and after accelerating the accelerator at the compressed air and nozzle, it sprays onto the sprayed surface. The equipment has stable performance, few vulnerable parts, and low maintenance costs. It has a high degree of automation, PLC centralized control, and simple operation. The conveying volume can be adjusted as needed, and the addition of the accelerator is infinitely adjustable. It is equipped with an automatic lubrication system to extend the service life of the equipment. In addition, the hydraulic spraying concrete machine is compact and has a wide range of applications, with small spraying pulsation, good continuity, large spraying volume, strong power, energy-saving, environmentally friendly, and time-saving, making it the best choice for new era infrastructure construction.