Core drilling machines for mining, also known as core drilling rigs or core sampling rigs, are often referred to as core drills in the industry. Their core function is to use diamond bits and other drilling tools to cut through rock strata during mining exploration, extracting complete cylindrical core samples. These samples provide geologists with crucial physical evidence for analysing rock composition, mineral content, and geological structure, making them a core piece of equipment for mineral resource assessment and mine development planning. Unlike ordinary drilling equipment, this equipment emphasises the integrity and accuracy of core samples, adapting to the deep drilling needs in complex mining geological environments. It can accommodate different exploration depths from tens to thousands of meters, accurately extracting core samples from various minerals such as gold, copper, and lithium. As a professional core drilling rig manufacturer, YG has successfully served numerous mining exploration projects worldwide with its reliable product quality and customised solutions. If you are interested, please get in touch with us now for more information.
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Full Hydraulic Core Drilling Rig Parameter
| Model | YGX-400 | YGX-600 | YGX-800 | YGX-1000 |
| Drilling Depth(M) | 180-400-500 | 200-600-650 | 400-800-1000 | 500-1000-1100 |
| Rated pressure(MPA) | 21 | 21 | 25 | 28 |
| Rated Flow(L/min) | 168 | 192 | 260 | 300 |
| Heat Dissipation Mode | Air cooling+water cooling | |||
| Engine Brand | Yuchai | Yuchai | Yuchai | Cummins |
| Rated power/speed | 78kW/ 2400r/min | 92kW/ 2400r/min | 92kW/ 2400r/min | 154kW/2400r/min |
| Drilling Angle(°) | 0-90 | 45-90 | 45-90 | 45-90 |
| Lifting Force(T) | 12 | 16 | 24 | 30 |
| Feed Force(T) | 6 | 8 | 12 | 15 |
| Hydraulic Mud pump flow | 30-90（L/min） | 30-90（L/min） | 90-180（L/min） | 90-180（L/min） |
| Hydraulic Mud pump power | 4-7(MPA) | 4-7(MPA) | 4-7(MPA) | 4-7(MPA) |
| Dimension | 4000*1900*1800mm | 4000*2000*1800mm | 5500*2100*2000mm | 6000*2200*2400mm |
| Weight | 4.3T | 4.5/5.5T | 6.5T | 7.5T |
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8 Typical Application Areas of the YG Core Drilling Machine for Mining
- Metal Mineral Exploration: Suitable for resource exploration of various metal minerals such as gold, copper, iron, lithium, and nickel. It accurately extracts core samples to analyse mineral content and distribution, providing a basis for mine planning.
- Non-metallic Mineral Exploration: Used for the exploration of non-metallic minerals such as coal, graphite, marble, and limestone, determining mineral reserves and quality, and guiding the development of mining plans.
- Geological Survey Engineering: Used in geological surveys before the construction of large-scale projects such as highways, railways, and hydropower stations to detect geological parameters such as underground rock structure and bearing capacity, ensuring the safety of project construction.
- Oil and Gas Resource Exploration: With specialised drilling tools, it can be used for preliminary exploration of oil and gas resources, extracting rock samples to analyse oil and gas potential, and providing a reference for oil and gas drilling projects.
- Mine Production Exploration: During the mining process, it is used for delineating ore body boundaries and dynamic monitoring of resource reserves, optimising mining plans, and improving mineral resource recovery rates.
- Environmental Geological Survey: Used for environmental geological surveys such as soil and groundwater pollution, extracting deep core and soil samples to analyse the scope and degree of pollution.
- Geothermal Resource Exploration: In the exploration of projects such as hot springs and geothermal power plants, it is used to detect the depth and temperature of underground thermal reservoirs and assess the potential for geothermal resource development.
- Scientific Research Geological Exploration: Provides core sample collection services for geological research projects, assisting geologists in studying geological science problems such as stratigraphic evolution and mineral formation.
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Core Drilling Rig Case Study: Tanzanian Gold Mine Exploration Project
Client Background: A Tanzanian mineral exploration company undertook a resource exploration project for a local gold mine. The project required core sampling at 50 exploration points, with an exploration depth of 300-500 meters. The local geology is predominantly hard granite, and traditional drilling equipment is inefficient and produces poor sample integrity.
The problems encountered are as follows:
- First, drilling efficiency is low. When drilling hard granite with traditional mechanical drilling rigs, only 8-10 meters can be drilled per point per day. It is estimated that 50 points will require 120 days to complete, far exceeding the project’s planned 60-day schedule.
- Second, sampling quality is poor. Insufficient wear resistance of the drill bit leads to severe breakage of core samples, with an integrity rate of only 60%, failing to meet geological analysis requirements.
- Third, equipment stability is poor. In the local high-temperature environment, the hydraulic system of traditional equipment is prone to overheating and failure, requiring shutdown for maintenance on average once every 3 days.
- Fourth, mobility is inconvenient. The exploration points are scattered, and traditional equipment requires large hoisting equipment for transportation, resulting in high transportation costs and low efficiency.
Solution: Based on project requirements, the company purchased four YG-600 hydraulic core drilling machines, equipped with high-strength diamond drill bits and a complete set of drilling tools. After on-site inspection, YG technicians customised drilling parameter schemes for different exploration depths and optimised the heat dissipation of the equipment’s hydraulic system to address the local high-temperature environment. A five-day on-site operation training program was also provided to ensure operators mastered the equipment’s operation and maintenance skills.
Performance Results: With four hydraulic core drilling machines operating simultaneously, drilling depth at a single point increased to 25-30 meters per day in hard granite geological conditions. Fifty exploration points were completed in just 45 days, achieving the project schedule 15 days ahead of schedule. The diamond drill bits exhibited excellent wear resistance, and the core sample integrity rate was 100%, providing reliable data for gold resource assessment. After heat dissipation optimisation, the equipment operated continuously without failure in a 40℃ high-temperature environment, with equipment stability far exceeding expectations.
Customer Testimonial: “YG’s hydraulic core drilling machines perfectly solved our efficiency and quality challenges in gold exploration in Tanzania! The high drilling efficiency allowed us to complete the project ahead of schedule, and the accurate sampling quality ensured the reliability of the exploration data. The equipment’s stability in high-temperature environments was also outstanding. As a professional core drilling rig manufacturer, YG’s technical support and after-sales service gave us peace of mind, making it our preferred brand for long-term cooperation.”
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6 FAQs About Hydraulic Core Drilling Rigs
A: It is suitable for various rock types, including soft rock, hard rock, and granite. YG equipment can drill to depths of 50-1500 meters, meeting the deep exploration needs of most mines. With specialised drilling tools, it can achieve precise sampling at depths exceeding 800 meters.
A: We offer comprehensive customisation services. We can customise equipment power, model (tracked/vehicle-mounted), and drilling tool specifications according to exploration depth, lithology, and terrain requirements. We also provide exclusive drilling parameter solutions.
A: Overseas customers enjoy comprehensive after-sales support. Fault response time during the warranty period is no more than 48 hours; remote technical support is provided, with on-site repair guidance available; lifetime spare parts supply and technical training are provided.
This depends on the rig configuration. Small, portable rigs typically reach 200-300 meters, while large hydraulic core drilling machines, with different drill rod configurations (BQ, NQ, HQ), can achieve depths exceeding 1500-2000 meters.
It is currently the mainstream core drilling rig operation method. A core cylinder is suspended through the inner wall of the drill rod, allowing sampling without removing the drill rod. This is revolutionary for improving the efficiency of deep-hole operations.
As a leading core drilling rig manufacturer, we typically provide standard configuration recommendations. You can purchase additional drill rods and diamond drill bits of different specifications as needed, depending on the project depth requirements.
