Hydraulic Bolting Jumbo, HT92-D
The HT92-D hydraulic bolting jumbo is specifically designed for bolt support operations in narrow tunnels and confined underground environments, such as metal mines and other excavation sites. Its specialized feed system allows it to operate efficiently within spaces as tight as 2.4 m × 2.4 m.
Powered by an advanced electro-hydraulic rock drilling system with anti-jamming protection, the hydraulic bolting jumbo ensures high drilling speed and operational efficiency. With a compact and agile build, this bolting jumbo improves mobility and significantly enhances the underground working environment, boosting both safety and construction productivity.
Support your underground operations with a compact, intelligent solution that delivers precision, boosts safety, and keeps your projects running smoothly where space is limited.
| Drilling rig | Working coverage | 2400×2400mm-3500×3500mm |
| Length | 9000mm | |
| Width | 1500mm | |
| Height (roof retracted) | 1800mm | |
| Height (roof extended) | 2500mm | |
| Min. turning radius | Inside 3100mm Outside 5000mm | |
| Gradeability | 14° | |
| Travel speed | 3.8km/h | |
| Weight | 12000±500kg | |
| Ground clearance | 290mm | |
| Rock drill | Model | RC1200 |
| Impact power | 14kW | |
| Impact frequency | 100Hz | |
| Max. impact pressure | 180bar | |
| Rotation system | Independent rotation | |
| Shank adapter | R25 | |
| Drill hole diameter | Ø32-43mm | |
| Feed | Feed length | 2100mm |
| Split tube | 1800mm | |
| Working pressure | ≤10Mpa | |
| Feed force | 10kN | |
| Feed tilt angle | 64°-25° | |
| Feed turning angle | ±180° | |
| Feed compensation | 300mm | |
| Boom | Boom telescopic extension | 900mm |
| Swing angle | ±35° | |
| Drill hole depth | 2000mm | |
| Boom weight | 1100kg | |
| Hydraulic system | Impact/displacement | 100cc/32cc |
| Max. oil tank capacity | 100L | |
| Filtration | 10μm | |
| Chassis | Engine | Cummins diesel engine (IV) |
| Rated output power (2400r/min) | 54kW | |
| Torque | 320Nm | |
| Rear axle swing angle | 7° | |
| Steering angle | ±35° |
- Durable Lightweight Feed Beam: features a heavy-duty aluminum alloy feed beam that is lightweight, highly resistant to bending and torsion, and built for long service life
- Automated Rod Handling: equipped with a rod changer that supports automatic loading and unloading of two rods, allowing deeper bolt holes and overcoming spatial limitations of mini drift chambers
- Precision Installation System: uses dual reinforced guide tubes with a heavy-duty positioning cylinder to secure the drill point firmly, enhancing installation accuracy and efficiency
- Powerful Drilling Setup: fitted with the RC1200 rock drill and powered by a 55 kW system for reliable, high-performance operation
