Hydraulic Drilling Jumbo, HT70-B
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The HT70-B micro type hydraulic drilling jumbo is a type of medium-to-deep hole drilling equipment designed for small-section underground tunnels. It is suitable for drilling vertical or inclined parallel holes as well as fan-shaped blast holes.
The hydraulic drilling jumbo is equipped with stable dual stingers, a high-precision angle indicator, and an ergonomic remote-control console. Combined with an efficient hydraulic drifter, these features support safe, accurate, and reliable drilling operations. The high-stability boom provides precise positioning and high drilling accuracy, helping to reduce ore dilution.
| Hydraulic drilling jumbo | Suitable cross section | 2800×2800 - 4000×4000mm |
| Dimensions (Lx W x h) | 4150×1400×2200mm | |
| Ground clearance | 280mm | |
| HT70-B(CYTC70B) | Min. turning radius | Inner 2100 mm / Outer 3500 mm |
| Gradeability | 14° | |
| Total weight | 5500kg | |
| RC2200 Hydraulic drifter | Percussion power | 21kW |
| Percussion frequency | 55Hz | |
| Impact pressure | 200bar | |
| Rotation system | Independent rotation | |
| Rotation speed | 0-285r/min | |
| Max. rotary torque | 720N.m | |
| Feed system | Feed lengths | 2550 / 2770 / 3000mm |
| Drill rod thread | T38 / T45 | |
| Drill rod length | 800 / 915 / 1220mm | |
| Feed weight | 800/950/1050kg | |
| Feeding force | 13kN | |
| Rod storage capacity | 14 1 (T38) / 12 1 (T45) | |
| RC2200 Electric system | Total power | 87.5KW |
| Main electric motor | 75kW | |
| Voltage | 380V (optional) | |
| Air compressor | Model | GCU11 |
| Air displacement (8bar) | 1 m³/min | |
| Voltage | 380V (optional) | |
| Boom | Compensation stroke | 900mm |
| Feed rollover angle | 180° | |
| Tilting angle | Forward -30°, backward 65° | |
| Boom weight | 750kg | |
| Parallel hole range | 1500mm | |
| Hydraulic system | Oil tank capacity | 120L |
| Filter fineness | 10μm | |
| Sensor | Differential pressure sensor for hydraulic oil filter | |
| pump | Manual oil pump | |
| Chassis | Rear axle oscillation | 7° |
| Tyres | Front: 8.25-10 | |
| Rear: 6.5-10 | ||
| Drive | Front wheel drive | |
| Steering | Rear wheel steering | |
| Brake | Service brake / parking brake |
- High drilling accuracy: The hydraulic drilling jumbo is equipped with an advanced drilling system, which delivers industry-leading drilling performance achieved by full-power drilling, rotation-pressure-controlled anti-jamming, anti-idle impact protection, and a hydraulic drifter that absorbs recoil energy. These features provide precise drilling, and greatly prolong the service life of the drilling equipment.
- Full-range drilling capability: Specifically designed for small cross-sections, the remote-control console offers convenient and flexible operation with full-range drilling coverage. It can drill parallel holes in a plane, side holes with angles, and downward holes. The drilling system is also equipped with a programmed automatic anti-jamming function.
- Optimized cost performance: The main components are sourced from well-known domestic and international suppliers, offering reliable performance and excellent compatibility, which ensures the overall stability of the equipment.
- Powerful performance: The hydraulic drilling jumbo features a stable four-wheel-drive chassis with articulated steering, ensuring strong power and good climbing ability up to 14°. Due to compact design and overall stability, the jumbo can travel fast and safe in narrow tunnels.
- Easy maintenance: The jumbo features a modular structural design that simplifies installation and maintenance, and allows easy disassembly and reassembly when transporting the jumbo to the underground site.
- Convenient operation: The jumbo is equipped with a mobile operation console, allowing the operator to work from a safe area while maintaining clear visibility for adding or removing drill rods.
- Low maintenance cost: The hydraulic drilling jumbo is designed with various protection and alarm systems such as low oil level, high oil temperature, filter blockage, and lubrication failure alarms. In addition, it’s equipped with high quality imported drilling tools to ensure prolonged service life.
- Hydraulic drifter options: Multiple high-power hydraulic drifters are available to meet various drilling requirements and match different rock physical and mechanical conditions.
(Standard configuration: RC2200 hydraulic drifter)
Traveling position
Working position
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