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191kW Ultra-High Power System, Core Guarantee for Extreme Hard Rock Drilling
Equipped with a 191kW high-power system and dual-fan water-cooled radiator, this high-power mining drilling machine enables long-term continuous operation in high-temperature mines, providing strong power for extreme hard rock impact drilling to meet high-intensity perforation needs of extra-large open-pit copper mines.
Twin-Screw High-Pressure Air Compressor, Stable Ultra-High Pressure Output
The twin-screw high-pressure air compressor delivers >2.5MPa exhaust pressure and 25-32m³/min airflow. This DTH hammer drilling rig provides stable ultra-high pressure for DTH hammers to efficiently crush extremely hard rock, avoiding efficiency decline or pipe sticking caused by pressure fluctuations.
High Torque + Ultra-High Pulling Force, Handle Extreme Hard Rock Conditions
With 4000-5500N·m rotating torque and 80kN maximum pulling force, this hard rock drilling machine quickly resolves pipe sticking in extreme hard rock drilling. 40-75rpm rotating speed adapts to different hard rock formations, ensuring perforation efficiency and stability.
Retractable Crawler Chassis, All-Terrain Operation in Large Mines
Featuring retractable track gauge, 500mm track width, ≤18° climbing ability and 0-2.5km/h walking speed, it easily traverses steep slopes and muddy areas in large copper mines. This crawler mining drilling equipment ensures movement and positioning efficiency in complex terrain.
Pulse + Wet Dual Dust Removal System, Meet Environmental Standards
Pulse reverse + wet dust removal provides dual protection, effectively collecting dust from extreme hard rock perforation, meeting large mining area environmental requirements and reducing dust impact on operators and the environment.
Triple Control Mode, Precise & Efficient Operation
Adopting hydraulic pilot + electric control + remote monitoring triple mode, this intelligent mining drilling rig improves drilling positioning accuracy and reduces human error. Remote monitoring allows real-time equipment status tracking, ensuring efficient and safe perforation in large mines.
YQD-230 Ultra-heavy-duty DTH Drilling Rig Technical Specifications | |||
Parameter Name | Parameter Value | Unit | Remarks |
Basic Parameters | |||
Model | YQD-230 (Ultra-heavy Duty) | ||
Drilling Method | Down-the-Hole (DTH) Drilling | ||
Borehole Diameter Range | Φ220 – 230 mm | mm | |
Drilling Depth | 30 – 40 m | m | |
Total Machine Weight | 18,000 – 22,000 kg | kg | |
Transport Dimensions (L × W × H) | Approx. 5500 × 2800 × 3000 | mm | |
Gradeability | ≤ 18° | ° | |
Travel Speed | 0 – 2.5 km/h | km/h | |
Power System | |||
Rated Power | 191 kW | kW | |
Cooling Method | Liquid Cooling System (Dual-Fan) | ||
Air Compressor System | |||
Air Compressor Type | Twin screw air compressor (high pressure type) | ||
Discharge Pressure | >2.5 MPa | MPa | |
Air Delivery | 25 - 32 m³/min | m³/min | |
Discharge Pipe Diameter | 3.5 inches (90 mm) | mm | |
Feed and Rotation System | |||
Feed Method | Hydraulic cylinder + chain drive | ||
Maximum Feed Force | 50 kN | kN | |
Maximum Pull-out Force | 80 kN | kN | |
Feed Stroke | |||
Rotation Head Speed | 40 - 75 rpm | rpm | |
Rotation Torque | 4000 - 5500 N·m | N·m | |
Drill Mast and Boom | |||
Mast Pitch Angle | +15° / -10° | ||
Mast Swing Angle | ±12° | ||
Mast Extension/Retraction | Retractable | ||
Undercarriage System | |||
Undercarriage Type | Crawler-type | ||
Track Shoe Width | 500 mm | mm | |
Track Gauge | Retractable | ||
Other Parameters | |||
Dust Removal Method | Pulse-jet dust removal + Wet dust suppression | ||
Control Method | Hydraulic pilot + Electronic control + Remote monitoring | ||
Applicable Rock Type | Extremely hard rock | ||
Extremely Hard Rock Perforation in Extra-Large Open-Pit Copper Mines
Targeting extra-large open-pit copper mines, 30-40m deep drilling and φ220-230mm extra-large boreholes match blasting design. 5500N·m high torque efficiently crushes hard copper ore, providing core perforation equipment to improve mining efficiency and ore recovery rate.
Large-Scale Blasting in Extremely Hard Rock Quarries
For large-scale blasting in hard rock quarries, dual-fan water cooling supports long-term continuous perforation, and pulse + wet dust removal reduces pollution. φ220-230mm large boreholes meet large stone crushing needs, improving quarry efficiency and safety.
Extremely Hard Rock Foundation Blasting in Large Infrastructure
Adapting to railway/highway infrastructure foundation blasting, the retractable crawler chassis navigates complex terrain, and remote monitoring tracks equipment status. 30-40m deep drilling meets deep crushing needs, accelerating infrastructure project progress.
Extremely Hard Rock Cofferdam Blasting in Water Conservancy Projects
For water conservancy cofferdam blasting, 80kN high pulling force resolves pipe sticking, and precise drilling ensures blasting accuracy, avoiding damage to cofferdam structures and ensuring construction safety and stability.
Q: What is the perforation efficiency of the YQD-230 rig in extremely hard rock formations?
A: In extremely hard rock (e.g., granite, basalt), perforation speed can reach 0.5-1.0m/min (depending on rock hardness). The ultra-high pressure airflow from the twin-screw compressor and high-torque system ensure efficient progress in extreme hard rock.
Q: What are the transportation dimensions and weight of the equipment? Which transportation method is suitable?
A: Transportation dimensions are approximately 5500×2800×3000mm, with a total weight of 18-22 tons. It is suitable for heavy flatbed trucks or oversize cargo vehicles. The integrated design allows immediate commissioning after arrival at large mines without disassembly.
Q: What is the maintenance cycle and vulnerable parts of this rig?
A: Regular maintenance is required every 500 hours, including air compressor filter replacement, hydraulic oil inspection, track tension adjustment, and water-cooled radiator cleaning. DTH hammers, drill pipes, and track plates are key vulnerable parts, which need regular inspection and replacement based on perforation intensity. We provide professional after-sales guidance and parts supply.
Q: Can perforation parameters be customized for extra-large copper mines?
A: We can adjust drilling depth or borehole diameter range according to blasting design requirements, and customize remote monitoring extended functions. Please contact our technical team to confirm specific customization plans.
Q: How about the operation stability in high-temperature mining areas?
A: Equipped with dual-fan water-cooled radiator, it effectively reduces equipment temperature in high-temperature mines, ensuring stable operation of the power system and air compressor, and supporting long-term continuous extreme hard rock perforation.
