A Shotcrete Truck gives contractors a mobile and reliable way to spray wet concrete in tunnels, slopes, and underground spaces. With its all-in-one design, the Shotcrete Truck mixes, pumps, and sprays concrete from the same vehicle, improving daily output while reducing dust and rebound. It is widely used in projects where safety, quality, and speed are key.
What Is A Shotcrete Truck?
A Shotcrete Truck is a wet shotcrete machine truck that mounts the mixing and spraying system on a truck chassis. Wet shotcrete uses mixed concrete before spraying, while dry shotcrete mixes water at the nozzle. Wet shotcrete gives better bonding strength, lower dust, and less rebound.
Contractors choose a truck-mounted shotcrete machine instead of trailer or hand-held units because:
- The on-board system shortens setup time
- Higher spraying output supports tight schedules
- Safer work with lower dust and stable pressure
- Easy movement between tunnel sections and slope points
Product Parameters of Wet Shotcrete Machine Truck
Typical working ranges for a Shotcrete Truck include:
| Project Content | YG-3016 | YG-4016 |
| Vehicle length | 7770mm | 7880mm |
| Width | 2460mm | 2460mm |
| Height | 3180mm | 3380mm |
| Rated weight | 14T | 15T |
| minimum turning radius | 10.8M | 11.5M |
| Max Gradeability | ≥40° | ≥40° |
| Engine power | 85KW | 103KW |
| wheelbase | 3900mm | 4100mm |
| Front axle wheelbase | 1870mm | 1870mm |
| Rear axle wheelbase | 1870mm | 1870mm |
These parameters help the truck work in long tunnels, steep slopes, and narrow mine passages.
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Core Components Of A Wet Shotcrete Machine Truck
The wet shotcrete machine truck includes all major spraying systems on one platform:
- Mixer + concrete pump + accelerator dosing unit
- Spraying manipulator for shotcrete with a joystick or remote control
- Hydraulic outriggers for stability and safe work on slopes
- Dust control unit to reduce rebound
- Cabin control + wireless remote for safer tunnel spraying
The spraying arm can rotate and extend to reach ceiling sections, tunnel crowns, and high slope areas without extra scaffolding.
How The Truck-Mounted Shotcrete Machine Works
A truck-mounted shotcrete machine follows a clear spraying process:
- Wet concrete is mixed and pumped through high-pressure lines
- Air flow and nozzle control shape the spray pattern
- An accelerator is added at the nozzle to speed up bonding
- A closed spraying loop lowers rebound and reduces dust
- Constant flow helps concrete grip rock or old concrete surfaces
This system gives better adhesion on slopes, tunnel walls, and curved profiles.
Advantages Of A Shotcrete Truck
A Shotcrete Truck provides strong value for contractors:
- High precision spraying with less waste
- Wet concrete gives stronger bonding and lower rebound
- Mobile truck design works in remote mountain or tunnel sites
- All-in-one system: mixing + pumping + spraying
- Lower dust improves worker safety in confined spaces
- Fast setup raises daily output and supports tight schedules
These advantages make it ideal for long-term underground and slope projects.
Applications Of A Wet Concrete Spraying Truck
A wet concrete spraying truck supports many construction and mining jobs:
- Road and metro tunnels
- Mine galleries and rock support
- Slope protection and retaining walls
- Hydropower stations, dams, and reservoirs
- Bridge repair, parking structures, and concrete rehabilitation
The stable output helps create thicker, smoother, and longer-lasting sprayed layers.
How To Choose Tunnel Shotcrete Equipment
When selecting tunnel shotcrete equipment, consider:
- Tunnel, slope, or mining application
- Required spraying output and boom reach
- Diesel power for remote sites, electric for ventilation rules
- Accelerator control accuracy for bonding strength
- Water retention and rebound reduction systems
- Road size and transport regulations
Choosing the right configuration improves productivity and lowers long-term cost.
Spraying Manipulator For Shotcrete Project Cases
Contractors report good results using a spraying manipulator for shotcrete:
- Metro tunnel lining with a smooth finish and high strength
- Slope stabilization where shotcrete bonds to hard rock
- Narrow hydropower pressure chamber spraying with robotic control
- Fast slope protection installation along mountain highways
These cases show the truck can reach tight areas quickly and maintain high quality.
FAQs of Wet Concrete Spraying Truck
- Can the Shotcrete Truck spray inside narrow tunnels?
Yes, boom design and compact chassis help reach confined areas. - Can accelerator dosage be adjusted during work?
Yes, real-time control matches bonding needs and climate changes. - What is the typical rebound rate?
It is lower than dry shotcrete due to stable wet spraying flow. - Can the truck work in low temperatures?
Yes, with appropriate additives and accelerator control. - What is the maintenance cycle?
Daily cleaning + weekly lubrication + seasonal pump and boom inspection.
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