The SPB9-T wet concrete spraying machine is a mechanical, electrical, and hydraulic integrated equipment that uses the thrust generated by a hydraulic pump to make two oil cylinders reciprocate alternately, conveying dense-flow materials from the delivery pipeline to the mixing pipe, where compressed air forms a dilute flow that is sent through the pipeline to the nozzle. A certain proportion of accelerator is added at the nozzle, and the mixture is directly sprayed onto the receiving surface. It is widely used in highway, railway, tunnel, hydropower station, and other engineering construction projects.
Product Advantages
Mine safety certification, few wear parts
The whole machine has stable performance, few wear parts, and low maintenance and use costs. It has passed mine safety certification.
PLC centralized control, long service life
The electrical system adopts PLC centralized control, featuring reliable operation, long service life, and simple procedural operation.
High-manganese steel integrated nozzle, good continuity
The high-manganese steel cast integrated nozzle is smoother and more wear-resistant, with small spraying pulsation and good continuity.
Adjustable conveying capacity
The conveying capacity can be adjusted as needed, with a minimum of 3 cubic meters.
Walking tires, easy to move
The whole machine is equipped with walking tires and a towing frame, making it easy to move.
Automatic lubrication system and mixing system
The pumping system is equipped with an automatic lubrication system and a mixing system.
Technical Parameters
| Item | Unit | Parameter |
| Theoretical conveying capacity | m³/h | 9 |
| Maximum concrete conveying distance | m | 30/10 |
| Working air pressure | MPa | 0.5 |
| Air consumption | m3/min | 10 |
| Maximum pumping pressure of concrete | MPa | 6 |
| Maximum aggregate size for pumped concrete | mm | 15 |
| Feeding height | mm | 1200 |
| Slump | mm | 80～150 |
| Concrete cylinder (inner diameter × stroke) | mm | 140×580 |
| Number of cylinders | — | 2 |
| Working pressure of pumping hydraulic system | MPa | 16 |
| Working pressure of hopper mixing hydraulic system | MPa | 9 |
| Working pressure of distribution valve hydraulic system | MPa | 12 |
| Item | Unit | Parameter |
| Overall dimensions (L×W×H) | mm | 4440 (including towing frame) ×1550×1650 |
| Noise | dB(A) | 116 |
| Overall mass | kg | 2340 |
| Motor model | - | PYB180L-4 |
| Motor rated voltage | V | 380 |
| Motor rated current | A | 42.5 |
| Motor power | kW | 22 |
| Oil tank capacity | L | 135 |
| Dust beside the machine | Mg/m3 | ＜6 |
| Hopper capacity | M3 | 0.3 |
| Concrete distribution valve | - | S-tube valve |
| Cooling method | - | Air cooling |
| Rebound | - | ≤10% |
