Epiroc COP 1838ME Underground Mining Hydraulic Rock Drill Delivering High Penetration Rate Performance

The COP 1838ME is a high-penetration hydraulic rock drill engineered specifically for underground mining face drilling and tunneling applications. Building on the proven COP 1838 platform with enhanced impact mechanism tuning and optimized hydraulic flow distribution, this model achieves penetration rates 15-20% higher than standard configurations in medium to hard rock formations including granite, basalt, and quartzite. Its compact front head design allows seamless integration with single-boom and double-boom jumbos operating in drift dimensions from 3.5m x 3.5m upward, making it a practical choice for mine development contractors seeking measurable cycle-time reduction without compromising drill steel life.

The percussion system employs a dual-damping accumulator arrangement that stabilizes pressure peaks during each impact cycle, transferring consistent blow energy to the shank adapter across a broad operating range of 120-200 bar. This refined energy delivery minimizes rebound losses and maintains penetration linearity even as bit diameter increases from 43mm to 64mm. The rotation motor features independent speed and torque control through a pressure-compensated flow divider, enabling operators to match rotation parameters precisely to rock hardness variations encountered along a single drill hole, reducing stuck-steel incidents and improving overall advance per blast round.

• Elevated Penetration Rate: Impact mechanism delivers sustained high-frequency percussion at 60 Hz with 22 kW output, achieving up to 2.8 m/min penetration in competent granite formations with 51mm button bits.
• Dual-Damping Accumulator System: Twin diaphragm accumulators on high-pressure and return circuits absorb pulsation peaks, protecting hoses and couplings from fatigue failure while delivering uniform impact energy transfer.
• Independent Rotation Control: Pressure-compensated rotation circuit with separate flow adjustment allows operators to dial in optimal rotation speed between 0-300 rpm without affecting percussion performance, critical for fractured ground conditions.
• Modular Front Head Design: Quick-release front head with replaceable bushing inserts simplifies shank adapter changes and reduces maintenance downtime to under 30 minutes per service interval in underground conditions.
• Contamination-Resistant Sealing: Multi-stage rod seal arrangement with internal wiper ring prevents rock dust and drill cuttings ingress into the piston chamber, extending seal service life beyond 800 percussion hours in abrasive environments.
• Wide Pressure Operating Range: Functions reliably across 120-200 bar hydraulic supply pressure, adapting to existing carrier rig hydraulic systems without external pressure regulation modifications.

This hydraulic rock drill is purpose-built for underground hard rock mining face drilling, production drifting in narrow-vein and room-and-pillar operations, and tunneling in civil engineering projects. It handles drill hole depths up to 5.2 meters in single-pass operations with consistent penetration across granite, basalt, andesite, and quartzite formations. The COP 1838ME integrates directly with Epiroc Boomer series single-boom and double-boom drill rigs, as well as third-party carrier systems using standard cradle mount dimensions. It is also suitable for roof bolting applications when paired with a bolting feed with appropriate rotation control parameters, and for cross-cut development in block caving and sub-level caving mine layouts.

Each COP 1838ME hydraulic rock drill is shipped in a reinforced export-grade plywood case with internal foam contouring and desiccant packs to prevent moisture ingress during ocean freight. All hydraulic ports are fitted with protective plugs and the percussion chamber is pre-filled with preservation oil. A factory test report documenting impact power output, frequency calibration, and leak-down test results is included with every unit. Comprehensive warranty coverage applies for 12 months or 2,000 percussion hours from commissioning, covering manufacturing defects in materials and workmanship. Technical support includes pre-installation rig compatibility assessment, remote commissioning guidance via video link, and spare parts consignment stocking programs for mine sites with fleet-wide COP series equipment.