The suspension-type shotcreting unit is a type of concrete shotcreting vehicle, also known as a one-drag-two shotcreting vehicle or a single-hopper shotcreting vehicle, with the model PZD7-2. It is a new product developed by our company to meet the needs of national infrastructure construction. This product can simultaneously supply two shotcreting machines for operation, and the model and specifications of the shotcreting machines can be freely selected. This shotcreting unit is widely suitable for large-span tunnel construction, featuring high efficiency and user-friendly design. It replaces the traditional manual feeding construction method, significantly saving labor, avoiding dust hazards to construction personnel caused by manual feeding, and preventing material waste due to residue on unhardened work surfaces during manual feeding. With low rebound rate and excellent shotcrete surface quality, it greatly enhances tunneling speed and work efficiency, making it a versatile machine for shotcrete support in tunnel engineering. This product boasts advanced technology, comprehensive functionality, simple operation, and convenient maintenance, maximizing the reduction of construction costs.