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° |
