Our wet‑mix shotcrete spraying manipulator is professional underground concrete spraying robot for tunnel and mine rock support. Three models: AWT20 compact, AWT3016F medium‑duty, AWT4016N heavy‑duty. Equipped with multi‑section telescopic boom, wireless remote‑control, automatic accelerator dosing system. 4‑wheel‑drive & 4‑wheel‑steer chassis adapts complex tunnel ground. CE & ISO available, supports OEM & custom configuration. Ideal for mining contractors in Africa, Latin America, Southeast Asia.
Wet‑Mix Shotcrete Spraying Manipulator
Product Introduction
This wet‑mix shotcrete spraying manipulator is a specialized underground construction robot for rock support work. It pumps ready‑mixed wet concrete and sprays evenly onto tunnel and mine rock surfaces to form protective concrete lining, preventing rock‑fall and collapse risk.
Three complete product ranges: compact AWT20, medium‑duty AWT3016F, heavy‑duty AWT4016N. It adopts two‑stage telescopic & multi‑slewing spraying boom, full‑wireless proportional remote‑control operation. Operators stay away from dangerous working face to improve site safety. Automatic accelerator dosing system matches concrete flow accurately to reduce rebound rate and guarantee spraying quality. Heavy‑duty 4‑wheel‑drive, 4‑wheel‑steer engineering chassis supports crab‑walking mode for uneven tunnel floors. Multiple certification documents including CE, ISO, SGS are available. Engine emission, boom parameters and chassis can be customized for global projects.
Main Technical Parameters (Combined Table)
| Item | AWT20 Compact | AWT3016F Medium‑Duty | AWT4016N Heavy‑Duty |
|---|---|---|---|
| Overall dimension L×W×H (mm) | 8000×2000×2450 | 8970×2500×3500 | 8970×2500×3500 |
| Operating Weight | 12 000 kg | 17 000 kg | 17 000 kg |
| Max. pumping output | 4‑20 m³/h | 4‑30 m³/h | 4‑40 m³/h |
| Max spraying vertical height | 8 m | 16 m | 16 m |
| Max horizontal spraying width | 13 m | 30 m | 30 m |
| Max spraying depth | 2.5 m | 8 m | 8 m |
| Max concrete conveying pressure | 8 MPa | 8 MPa | 8 MPa |
| Max aggregate particle size | 20 mm | 16 mm | 16 mm |
| Engine brand & rated power | Cummins 60 kW | YUNNEI 92 kW | YUNNEI 92 kW |
| Travel speed (low‑high gear) | 0‑5 / 0‑15 km/h | 0‑5 / 0‑15 km/h | 0‑5 / 0‑15 km/h |
| Gradeability | 25° | 22° (40%) | 22° (40%) |
| Min. ground clearance | 300 mm | 400 mm | 400 mm |
| Accelerator tank capacity | 300 L | 1000 L + 500 L dual tank | 1000 L + 500 L dual tank |
| Accelerator dosing range | ‑ | 30‑1000 L/h | 30‑1000 L/h |
Disclaimer: Technical parameters subject to continuous product upgrade. Final specifications subject to factory acceptance test.
Core Advantages
- Wireless remote‑control: Operate far away from dangerous tunnel working face to improve operator safety.
- Full‑range boom coverage: Two‑stage telescopic & multi‑angle slewing boom, no blind spraying spots for wall, vault and invert arch.
- Automatic accelerator dosing: Proportional automatic additive supply reduces concrete rebound, improves shotcrete layer quality.
- Strong off‑road chassis: 4‑wheel‑drive & 4‑wheel‑steer with crab‑walking function, adapts uneven tunnel‑floor conditions.
- Large‑volume dual accelerator tank: Supports long‑time continuous construction without frequent refilling.
- Easy maintenance: Modular pump, hydraulic and electrical assemblies for fast field repair.
Application Scenarios
- Underground Mining: Metal & non‑metal underground mine primary rock support.
- Tunnel Engineering: Hydropower diversion tunnels, highway & railway tunnels, culvert support, invert‑arch construction.
- Slope protection: Outdoor high‑slope shotcrete reinforcement project.
- Global market fit: Well‑suited for tunnel & mine contractors in Africa, Latin America, Southeast Asia. For Australia and Canada, local safety & emission certifications must be completed before deployment, mainly for small‑scale private underground mining projects.
Recommended Wear‑Prone Spare‑Parts (On‑site Stock List)
Store these consumable high‑wear components locally to reduce equipment downtime.
Concrete Pump & Spraying Consumables
- Spray nozzle assembly, nozzle wear‑resistant liner
- S‑valve, concrete delivery pipe & pipe couplings
- Piston cups, concrete pumping seal kits
- Hopper vibrating screen mesh
Hydraulic System Wear Parts
- Full set hydraulic seal kits for boom & steering cylinders
- High‑pressure hydraulic hoses and hose fittings
- Hydraulic return filter element, pressure filter element
- Accelerator pump seals & diaphragm kits
Chassis & Travel System
- Heavy‑duty tires and tire inner tubes
- Brake friction pads
- Articulated joint bearing bushes
Electrical & Auxiliary System
- Remote‑control transmitter & receiver spare batteries
- Solenoid valve coils, fuses, relay sets
- Water‑air separator filter cartridges
Practical suggestion: Prepare about 3‑month consumption quantity of main wear‑parts for continuous underground working. Full spare‑parts catalog available upon request.
Frequently Asked Questions (FAQ)
Q1: What kind of concrete can this machine spray?
A1: Designed for wet‑mix concrete. Compatible with steel‑fiber / polypropylene‑fiber reinforced concrete (fiber length ≤20‑30 mm). Not for dry‑mix concrete.
Q2: What supporting air compressor do I need?
A2: Recommended air compressor: air flow 9‑15 m³/min, working pressure 0.5‑0.7 MPa for normal spraying performance.
Q3: What is the warranty term?
A3: 12‑month warranty after equipment start‑up, or 18‑month after shipment date, whichever comes first. Consumable wear‑parts are excluded from warranty.
Q4: Can you do OEM / custom modification?
A4: Yes. Engine emission standard, boom stroke, chassis configuration, explosion‑proof electrical system for gas‑mine can be customized.
Q5: How long is production lead‑time?
A5: Production lead‑time is around 3‑6 months for shotcrete manipulator, subject to order schedule.
Q6: Is operator training provided?
A6: We supply operation manual and technical documents. Overseas on‑site training service can be arranged upon request.
Q7: Which payment terms are acceptable?
A7: T/T, L/C at sight are acceptable. Normally 30% deposit after contract signing, balance before shipment.
Final Disclaimer: Product photos for reference only. Minor appearance improvements and optional configurations may apply. Final machine appearance & performance subject to actual delivery unit.
Get in touch
Have a project in mind ? Send us your ore assay report, mine location and target capacity. Our mining engineers will prepare a customized process design, equipment list and quotation within 48 hours.