Underground Mining Equipment
Hydraulic Bolting Jumbo, HT91-S
The HT91-S hydraulic bolting jumbo is specialized equipment designed for cable bolt installation and maintenance in underground mining operations. It plays a vital role in stabilizing weak surrounding rock by anchoring cable bolts to create a unified load-bearing structure. This reinforcement helps distribute structural loads and offers strong tensile resistance, reducing the risk of large-scale roof collapses and ensuring safe excavation in underground environments.
With its advanced hydraulic system and robust design, this hydraulic bolting jumbo brings a new level of efficiency and reliability to ground support work in deep mines and tunnels.
Reinforce your underground stability with a solution that strengthens weak ground, simplifies cable bolt work, and brings safety and control to your support operations.
- Red Warning Line Projection: equipped with a visible red safety line to alert non-operating personnel to keep a safe distance from the working zone
- Automated Rod Handling System: includes a rod storage unit on the drilling arm for automatic rod loading and unloading during deep cable bolt operations
- Dedicated Cable Bolt Workstation: features an independent platform for anchoring agent delivery, grout mixing during anchor cable installation, and tensioning—streamlining the full bolting process
- Mobile Control Platform: comes with a redesigned mobile operator station for improved ergonomics and simplified operation
| Drilling rig | Working coverage | 6000×7000mm |
| Dimensions (transportation) | 10800×1980×2500mm | |
| Dimensions (working) | 11600×2670×3300mm | |
| Ground clearance | 325mm | |
| Min. turning radius | Inside 3300mm Outside 7000mm | |
| Gradeability | 14° | |
| Travel speed | ≤10km/h | |
| Weight | 19500±500kg | |
| Rock drill | Model | RC1200 |
| Impact power | 14kW | |
| Impact frequency | 100Hz | |
| Max. impact pressure | 180bar | |
| Rotation system | Independent rotation | |
| Shank adapter | R32 | |
| Drill hole diameter | Ø32mm | |
| Feed | Total length | 3286mm |
| Feed stroke | 975mm | |
| Feed force | 13kN | |
| Feed tilt angle | Down 90°, up5° | |
| Feed turning angle | ±180° | |
| Feed compensation | 900mm | |
| Boom | Boom telescopic extension | 1250mm |
| Swing angle | ±35° | |
| Drill hole depth | 10000mm | |
| Drill rod length | 1200/1700mm | |
| Hydraulic system | Max. displacement | 100+50+16ml/r |
| Main motor power (2500r/min) | 55kW | |
| Air displacement (8bar) | 1m³/min | |
| Water pump flow rate (12bar) | 4m³/h | |
| Max. cable length | 100m (diameter 45mm approximately) | |
| Chassis | Engine | Cummins diesel engine |
| Rated output power (2200r/min) | 81kW | |
| Torque (1650r/min) | 480Nm | |
| Rear axle swing angle | 8° | |
| Steering angle | 40° |
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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