Underground Mining Equipment
Hydraulic Drilling Jumbo, HT221 (for Tunneling)
The HT221 hydraulic drilling jumbo is purpose-built for tunneling and excavation in narrow underground spaces, including metal mines and other confined environments. With a coverage area of up to 33 m², this intelligent tunneling jumbo delivers high-efficiency performance through its advanced full-hydraulic rock drilling system equipped with an anti-jamming mechanism for faster, more stable operation.
Designed with user-friendly controls and a high degree of automation, this hydraulic drilling jumbo minimizes operator skill requirements while offering intelligent functionality to support a smoother workflow. A wide range of configuration options is available to suit your specific project needs. Its compact structure and agile mobility significantly enhance the working environment and help boost both construction quality and productivity. Upgrade your underground worksite with a solution that improves efficiency, simplifies control, and adapts to your tunneling needs
- Compact Tunneling Capability: ideal for tunneling in narrow drifts and confined underground spaces, with a working coverage area of up to 33 m²
- Efficient Drilling System: equipped with a full-hydraulic rock drilling system featuring anti-jamming protection for fast and efficient drilling
- Smart And User-Friendly Operation: Enhanced human-machine interface with intelligent and automated functions, reducing reliance on operator skill
- Customizable Configuration: multiple configuration options available to meet personalized operational needs
- Agile And Robust Design: compact structure with excellent maneuverability, improving working conditions and boosting construction quality and efficiency
| Drilling rig | Drilling coverage | 3000×3000-6600×6000mm | |||
| Min. turning radius | Inside 2800mm Outside 4900mm | ||||
| Dimensions | 11510×1750×2208(2918)mm | ||||
| Gradeability | 14° | ||||
| Ground clearance | 365mm | ||||
| Weight | 13500kg | ||||
| Rock drill | Model | RC2200 | YYG18U | YYG22U | HC95 LMA |
| Impact power | 21kW | 18kW | 22kW | 21kW | |
| Impact frequency | 55Hz | 57Hz | 53Hz | 55Hz | |
| Impact pressure | 120-220bar | 180-200bar | 180-200bar | 165-200bar | |
| Rotation system | Independent rotation | ||||
| Rock drill length | 931mm | 1007mm | 1007mm | 987mm | |
| Shank adapter | T38, R38, T45 | T38 | T38 | T38, R38 | |
| Feed | Total length | 5262/5972mm | 5450/6040mm | 6040mm | 5972mm |
| Drill steel length | 3700/4305mm | 3700/4305mm | 4305mm | 4305mm | |
| Drill hole depth | 3370/3970mm | 3370/3970mm | 3970mm | 3970mm | |
| Feed force | 13kN | 13kN | 13kN | 13kN | |
| Boom | Feed compensation | 1250mm | |||
| Horizontal hole | Full coverage | ||||
| Guide shell rotary angle | ±180° | ||||
| Feed tilt angle | +90°/-5° | ||||
| Boom tilt angle | +60°/-30° | ||||
| Swing angle | ±35° | ||||
| Boom weight | 2565kg | ||||
| Boom telescopic extension | 1450mm | ||||
| Air & water system | Max. pump displacement (12bar) | 4m³/h | |||
| Air tank capacity | 56L | ||||
| Air displacement | 1m³/h | ||||
| Installation power | 87.5kW | ||||
| Main motor power | 75kW | ||||
| Voltage | 380V (customizable) | ||||
| Hydraulic system | Oil tank capacity | 185L | |||
| Filtration | 10μm | ||||
| Chassis | Engine brand/power | Cummins engine (III), 74kW Cummins engine (IV), 81kW Cummins engine (V), 90kW | |||
| Diesel tank capacity | 60L | ||||
- Air-assisted cuttings discharge with water-based dust suppression
- Extreme cold-weather adaptation package
- Full diesel-powered operation
- Air-conditioned operator cabin
- Dual-layer feed slide system
- Drilling assistance system for enhanced control
Get in Touch
Huatai is a Chinese company specialized in the design and batch production of rock drilling equipment. Since its inception in 2000, the company has been committed to manufacturing cutting edge products and providing the highest levels of customer service for a number of enterprises engaged in the mining, metallurgical and foundation engineer sectors.
Huatai has achieved continuous self-transcendence and filled several gaps in the domestic market through 20 years of ongoing innovation and development in the underground mining and rock drilling industry. Today, our product line includes more than 30 types of mine rock drilling machines which are fallen into three categories, i.e. underground mining equipment, coal mining equipment and shaft drilling jumbos. Years of our constant growth and improvement have resulted in a respectable achievement in the domestic rock drilling machine industry, increasing the safety, efficiency, and cost-effectiveness for underground mine engineering and tunneling construction operations.
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