In infrastructure projects such as tunnels, mines, water conservancy, and slope protection, the efficiency, quality, and safety of shotcrete construction are always key factors determining project progress and quality. Traditional dry spraying operations are inefficient, generate heavy dust pollution, have a high rebound rate, and incur high labor costs, making them unsuitable for the high standards and fast-paced construction demands of modern engineering projects. Qingdao SAINTYOL DAWIN Machinery, deeply rooted in the construction machinery field for many years, adheres to the philosophy of "technology-driven enterprise and craftsmanship-based products," and has developed a series of auto mobile concrete spraying truck / shotcrete machine. With their high efficiency, intelligence, safety, environmental friendliness, and flexible adaptability, these trolleys comprehensively address the pain points of traditional construction, becoming the preferred support equipment for countless projects, empowering infrastructure improvement and efficiency enhancement with their core strengths. I. High-Efficiency Operation, Double Improvement in Construction Period and Efficiency: Qingdao Saintyol DAWIN Machinery wet concrete shotcrete truck / concrete spraying truck have "high efficiency" ingrained in their product DNA, with core performance leading the industry, helping projects significantly shorten construction periods and create higher efficiency.

The main models, QZHP-3016B and QKSP-20A, have a concrete discharge capacity of up to 30 cubic meters per hour and a conveying capacity of up to 22 cubic meters per hour, respectively. Based on standard spraying thickness, a single unit can complete nearly 300 square meters of work surface per hour, increasing work efficiency by more than 30% compared to traditional equipment and several times that of manual spraying. The equipment features a dual-power system. In environmentally demanding scenarios such as urban municipal projects and residential areas, it can switch to a 55kW electric motor drive, achieving zero emissions and low noise, perfectly meeting green construction requirements. In remote mountainous areas and mines with limited power, it can switch to a diesel engine drive, providing self-sufficient power to ensure continuous operation for months without interruption, completely eliminating power supply limitations and ensuring uninterrupted construction progress. Simultaneously, the equipment is equipped with automatic anti-clogging pipe technology and a one-button reverse pump function, quickly resolving problems such as aggregate arching and pipe blockage. Combined with a biomimetic brush-like spraying mode, the nozzle moves smoothly along the work surface, ensuring continuous and uniform material output, significantly reducing downtime and making the entire spraying operation highly efficient and smooth. II. Full Coverage, Adaptable to Complex Working Conditions: Whether in narrow alleyways or large-section tunnels, the Saintyol DAWIN auto mobile shotcrete truck can flexibly adapt, achieving precise spraying with no blind spots and full coverage.

Compact and Agile: The QKSP-20 series mobile shotcrete truck is small and compact, with a wheelbase of only 2.45 meters, an overall length of 5.2 meters, a width of 1.85 meters, and a weight of 7500 kg. Equipped with a multi-mode steering system including front-wheel steering, four-wheel steering, and crab steering, its minimum turning radius is only 1.8 meters. It can rotate 360° without obstacles in narrow spaces such as small-section tunnels and mine roadways, easily handling operations in restricted areas. Large-scale model with wide coverage: The QZHP-3016B large-scale model mobile shotcrete truck features a 360° fully rotating boom, a 360° axial rotation nozzle, and a 240° vertical swing angle. It boasts a maximum spraying height of 16 meters and a spraying width of 27 meters, allowing for one-time positioning to cover the entire working surface, including tunnel arches, sidewalls, and the tops of high walls, eliminating the need for scaffolding and significantly saving preparation time. The high-strength boom design, combined with a symmetrical layout and a swing boom capable of ±45° swing, ensures precise coverage of every work area, whether in tunnels, culverts, slopes, or water conservancy and mining shafts, completely eliminating blind spots. Modular design for convenient maintenance and increased durability: SAINTYOL DAWIN MACHINERY auto mobile wet concrete spraying truck adopts a fully modular design, balancing durability and ease of maintenance, reducing operating costs and extending equipment lifespan. Quick installation, quick disassembly, and easy maintenance: Key modules such as the pumping unit and boom base are secured with locating pins and high-strength bolts, and equipped with quick-connect hydraulic couplings and aviation plugs, allowing for complete module replacement in 2-4 hours. Inspection windows are located in the vulnerable parts area, enabling quick replacement of nozzles and delivery cylinders without disassembling the entire machine, significantly reducing maintenance time. Standardized design reduces costs: A large number of common modules are shared across the same product series, reducing spare parts inventory pressure. Different boom extensions, pumping capacities, and remote control methods can be selected as needed to achieve "customized" operations and adapt to diverse engineering requirements. Durable materials ensure strong adaptability: The entire vehicle is constructed of high-strength, wear-resistant steel, and key components undergo special processing, making it suitable for harsh construction environments such as humid, dusty, and highly corrosive conditions. It boasts a low failure rate, long service life, and peace of mind in long-term use.

Every SAINTYOL DAWIN mobile wet concrete spraying truck is a crystallization of technology and craftsmanship; every precise spray is a testament to the commitment to engineering quality. In the future, SAINTYOL DAWIN Machinery will continue to focus on the field of concrete spraying equipment, drive product upgrades with technological innovation, provide more efficient, safer and smarter support solutions for global infrastructure projects, and use "Made in China" to solidify the foundation of engineering projects and help the infrastructure industry to flourish!