Diesel dry concrete spraying machine
The diesel dry concrete spraying machine is a high-quality shotcrete machine suitable for the dry spraying process. It is widely used by many contractors. It is widely used in concrete spraying operations in tunnels, culverts, subways, hydropower projects, underground projects, and high-gas tunnels in coal mines.
The diesel dry concrete spraying machine is a high-quality shotcrete machine suitable for the dry spraying process. It is widely used by many contractors. It is widely used in concrete spraying operations in tunnels, culverts, subways, hydropower projects, underground projects, and high-gas tunnels in coal mines.

Advantages of the diesel dry concrete spraying machine:
1. No adhesion through the rotor, with a new material chamber, eliminates adhesion and blockage in operation, reducing gaps and maintenance cycles.
2. Advanced technology.
3. Stable performance.
4. The fine flow conveying method adopts vortex flow to make the spray flow uniform, continuous, and smooth to improve the quality of shotcrete.
5. Easy operation and maintenance.
6. The four-point clamping device facilitates the adjustment of the pressure between the sealing plate and the rotor disc, thereby avoiding air leakage and air leakage and extending the life of wearing parts.
Parameters of the diesel dry concrete spraying machine:
Model | HWZ-3D | HWZ-5D | HWZ-9D |
Output Capacity | 2~3m3/h | 3~5.5m3/h | 6~9m3/h |
Max. Horizontal Conveying Distance | 200m | 200m | 200m |
Suitable Mix Ratio(Cement/Sand) | ≤1:3~5 | ≤1:3~5 | ≤1:4~5 |
Max. Aggregate Size | Φ10mm | Φ15mm | Φ20 mm |
Conveying Hose Inner Diameter | Φ38/Φ50mm | Φ51mm | Φ64mm |
Conveying Pressure | 0.2-0.4MPa(29-58PSI) | 0.2-0.4MPa(29-58PSI) | 0.2-0.4MPa(29-58PSI) |
Air Consumption for Conveying Material | 5~6m3/min(180-215CFM) | 9m3/min(325CFM) | 10-12m3/min(357~430CFM) |
Diesel Engine | 10hp,2200rpm | 18hp,2200rpm | 20hp,2200rpm |
Diesel Engine Starting |
Electric start | Electric start | Electric start |
Clutch Type in Diesel Engine | Automatic Clutch | Automatic Clutch | Automatic Clutch |
Material Charging Height | 0.9m | 1.1m | 1.1m |
Rotor Speed | 9-13r/min | 11r/min | 7.5~11r/min |
Overall Dimension(length×width×height) | 1.8× 0.8× 1.2m | 2.2× 0.96× 1.2m | 2.66×1.1×1.5m |
Net Weight | 480kg | 850kg | 950kg |

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Before we send a quote, please let me know the following questions:
1. What project will you use the diesel dry concrete spraying machine for, slope protection, swimming pool, or other?
2. What is the output you need, 3m3/h, 5m3/h, 7m3/h, 9m3/h, or other?
3. What is the maximum particle size of the material, less than 10mm, 15mm, or 20mm?
4. Regarding the engine, do you need an air engine, an electric engine, or a diesel engine? What is your local voltage? In China, it is 3-phase 380V 50Hz.
