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Underground Drilling Rigs

High-Efficiency Underground Drill Rigs | Mining & Tunneling Solutions

Robust underground drilling solutions engineered for precision, high penetration rates, and operational reliability in the most demanding rock conditions. Our manufacturing facilities are ISO 9001 certified, and all equipment complies with international CE safety standards for underground mining machinery.

Hydraulic Underground Drill Rig

Based on 20 years of field exploration experience, ASDRILL's X5 series hydraulic underground drill rig is a specialized core sampling device designed for enclosed and semi-enclosed spaces such as

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Hydraulic Underground Core Drilling Rig

X5 Series hydraulic underground core drilling rig is specifically engineered for underground 360° drilling operations, making it ideal for diamond core drilling and other advanced drilling works. The

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Technical Highlights

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Dual-Circuit Hydraulic Power Matching: Features an independent dual-circuit system that synchronizes percussion pressure with automated feed-force adjustment. By adjusting the impact frequency and feed rate in real-time based on rock hardness, the system prevents "dry hitting," maintaining an energy transfer efficiency of over 90% in rock formations with compressive strengths up to 180 MPa.

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Low-Profile Compact Chassis: Engineered with a low-center-of-gravity design and a total height under 2.2 meters. With a minimum turning radius of 3.5 meters, these rigs are optimized for narrow-vein mining and tunnels as small as 3m x 3.5m, ensuring high mobility and minimizing relocation time without requiring machine disassembly.

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Box-Section Anti-Torsion Boom: The boom and feed beam are fabricated from Q355B high-strength low-alloy steel using a box-section design. This geometry increases torsional rigidity by 25% compared to standard I-beam designs, significantly reducing structural fatigue and deflection during high-vibration drilling operations.

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Precision Hydraulic Control: Equipped with constant-power variable displacement pumps and pressure-compensated circuits to ensure stable positioning. During the collaring phase, the system applies controlled low-impact force before transitioning to high-frequency percussion, keeping hole deviation within 50mm and effectively reducing overbreak.

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Modular Maintenance Architecture: All routine inspection points (hydraulic levels, filter banks, and pressure gauges) are centralized at a height of 1.2 meters. The hydraulic manifold uses a standardized modular layout, allowing for component replacement in under 45 minutes, thereby minimizing field downtime.

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Field Validation Case Study: Applied in an underground gold mine project, this rig series achieved an average drift advance of 4.2m per shift with zero unscheduled downtime over 3 months of continuous deployment in highly abrasive strata.

Performance Matrix

Feature	Technical Specification / Value
Rock Drill Impact Power	20kW – 25kW options for high penetration in hard rock
Positioning Accuracy	Self-locking hydraulic cylinders for consistent hole alignment
Turning Radius	3.5m – 4.5m (model dependent) for tight maneuverability
Ground Clearance	>350mm, optimized for uneven, rugged mine haulage
Dust Suppression	Wet drilling system, 0.5MPa spray pressure for environmental compliance
Centralized Lubrication	Automated greasing for critical pivot points to reduce manual maintenance

Solutions To Industry Pain Points

Frequent Downtime: Core structural components are validated via 1,000-hour continuous load testing; high-durability, globally sourced seals significantly extend Mean Time Between Failures (MTBF).

Low Productivity: Integrated auto-anti-jamming logic detects torque spikes and triggers an automatic reverse-retraction cycle, preventing drill string breakage and operational halts.

High Maintenance Costs: Hydraulic interfaces utilize standardized ISO/SAE specifications, eliminating reliance on proprietary, hard-to-source components and lowering the total cost of ownership.

Poor Accuracy: Rigid guide-beam architecture maintains stability during long-hole drilling, effectively offsetting deflection caused by rock fissures.

Manufacturing & Delivery Standards

We provide tailored configurations aligned with specific site geological conditions:

OEM & ODM Customization

Matching drifter configurations to specific rock hardness (Protodyakonov scale f=6–14).

Strict Quality Control

Every rig undergoes ultrasonic weld inspection, hydraulic pulse pressure testing, and an 8-hour zero-load commissioning cycle prior to shipment.

Comprehensive Support

Detailed maintenance manuals and electrical schematics provided. Initial orders include a pre-configured spare parts package for immediate onsite support.

Global Logistics

We provide global logistics support with crated shipping options and localized commissioning support available for major mining regions.

FAQ

Q: What rock types are these rigs compatible with?

A: Optimized for rock with a Protodyakonov hardness (f) of 6–14. High-wear resistant alloy drill strings are available for abrasive or highly fractured formations.

Q: Is custom configuration available?

A: Yes. Boom length, feed travel, engine specifications, and control systems can be configured to meet project-specific requirements.

Q: What drilling method is utilized?

A: Primarily Top Hammer drilling, the industry standard for balancing penetration efficiency and cost-effectiveness in underground mining.

Q: How is operator training handled?

A: We provide video tutorials and onsite technical training, with a focus on hydraulic parameter adjustment and preventative maintenance workflows.

We're professional underground drilling rigs manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to buy the best underground drilling rigs for sale here from our factory. For price consultation, contact us.

Underground Drill Rig