Mineral exploration depends on one thing: high-quality core samples. The better the core, the better the geological interpretation. The better the interpretation, the better the investment decisions. Poor samples lead to misjudged ore bodies, wasted drilling, and millions in lost opportunity. An NQ hydraulic core drilling rig is built to deliver those high-quality samples. It combines full hydraulic transmission with NQ-sized drill tools for efficient, high-recovery wireline coring. The result is reliable geological data that drives better exploration outcomes.
The YG series NQ hydraulic core drilling rig offers four models with drilling depths from 180 to 1100 meters. Every model features full hydraulic transmission, crawler mobility, and NQ wireline coring capability. Whether you need an NQ core drill rig for sale for shallow exploration or deep mineral targeting, the YGX series has a model matched to your requirements.
NQ Hydraulic Core Drilling Rig Technical Specifications:
| 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 |
Common Wireline Coring Tool Specifications
| Specifications | Drill hole diameter | drill pipe diameter | core diameter | typical drilling depth |
| PQ | 122.6mm | 114.3mm | 85mm | 300-500m |
| HQ | 96mm | 89mm | 63.5mm | 500-800m |
| NQ | 75.5mm | 71mm | 47.6mm | 700-1000m |
| BQ | 60mm | 55.6mm | 36.5mm | 800-1200m |
Thin-Walled Diamond Wireline Coring: Higher Recovery, Better Samples
The YGX series NQ hydraulic core drilling rig uses thin-walled diamond wireline coring technology to maximize core recovery.
How wireline coring works. The drill string remains in the hole while a wireline tool retrieves the core sample from the bottom. The operator does not need to lift the entire drill string to recover each sample—only the inner tube is retrieved. This dramatically reduces cycle time and improves efficiency.
The thin-walled advantage. The YG core sample drill rig uses thin-walled diamond drill bits that reduce torque resistance and increase cutting speed. The thinner wall means less material to cut through, faster penetration, and less wear on the drill bit.
The result. Core recovery rates exceed 95%. The samples are intact, uncontaminated, and accurately oriented—providing reliable geological data for exploration decisions. The large core diameter allows for comprehensive laboratory analysis, from visual logging to assay testing.
Drill string characteristics. The drill string maintains a “full, rigid, straight” configuration during drilling. This controls hole deviation, preserves core integrity, and improves safety.
What Makes the YG NQ Hydraulic Core Drilling Rig Different?
The YGX series is built around one objective: get the best possible core samples, as efficiently as possible. Every component is selected with this purpose in mind.
- Full hydraulic transmission. The YGX series uses a full hydraulic transmission system. The operator controls drilling speed, torque, and feed force through hydraulic valves, providing stepless speed adjustment and pressure stabilization. The hydraulic system adapts to the formation in real time—slowing down in soft soil to protect core samples and increasing thrust in hard rock to prevent jamming.
- NQ wireline coring capability. The YG core sample drill rig is designed for NQ-sized drill tools, the international standard for wireline coring. NQ drill pipe measures 69.9mm outer diameter and 60.3mm inner diameter, with a 75.7mm diamond bit and 47.6mm core diameter. This size balances core recovery with penetration efficiency, making it the most widely used coring size in mineral exploration.
- Crawler mobility. Exploration sites are rarely accessible by paved roads. The YGX series uses a tracked undercarriage for mobility across rough terrain, climbing slopes, and moving between drill sites without requiring a separate transport vehicle. The compact footprint requires minimal site preparation—no concrete foundations or extensive leveling required.
- Thin-walled diamond coring. The YG diamond core drill rig uses thin-walled diamond drill bits that reduce torque resistance and increase cutting speed. The thinner wall means less material to cut through, faster penetration, and less wear on the drill bit. The result is core recovery rates exceeding 95% with intact, uncontaminated samples.
Why Choose YG NQ Hydraulic Core Drilling Rigs?
The YGX series delivers four models covering depths from 180 to 1100 meters. Every model features full hydraulic transmission, crawler mobility, and thin-walled diamond wireline coring technology.
- Proven reliability. YG has years of experience manufacturing and exporting drilling equipment to clients worldwide.
- Global service network. YG’s service network covers more than 50 countries worldwide, with a 24-hour response time for equipment failures. Remote technical support is available upon request.
- Factory-direct pricing. The factory-direct sales model eliminates intermediaries, allowing customers to obtain rigorously quality-inspected products at competitive prices.
- Comprehensive support. YG provides detailed user manuals, online video tutorials, and remote technical support. Spare parts are available for long-term support.
If you need an NQ hydraulic core drilling rig for mineral exploration, the YGX series provides reliable, proven performance. Contact us with your depth requirements and formation type. We will recommend the right diamond core drill rig for your operation. Get a free quote for your NQ core drill rig for sale today.
