Within the Epiroc family of hydraulic rock drills, the COP 1838ME is a top-hammer (drifter) machine designed for medium-deep hole drilling of larger-diameter holes in underground mining. It should be noted that this model is not a standard model currently sold on Epiroc's official website; rather, it is a configuration that actually existed during the era of its predecessor, Atlas Copco, and units manufactured in the 1990s can still be found on the market today. Based on its technical data, it is essentially consistent with the current COP 1838HE+ and can be regarded as an early version of the large-hole (HE-type) branch.

Rock Drill Specification Table
Item    Specification
Impact power (max)    19 kW (25.5 hp)
Input power to rock drill (max)    32 kW (43 hp)
Hydraulic pressure (max)    230 bar
Working pressure (max)    200 bar
Impact oil flow    71–90 L/min
Impact frequency    42–50 Hz
Rotation speed    0–135 rpm
Rotation torque (max)    1550 N•m
Hole diameter    76–102 mm (3–4 in)
Weight    174 kg
Transport dimensions    1098 × 316 × 223 mm
Input system    Hydraulic
Application    Medium-deep hole drilling in underground mining

The machine is designed for efficient drilling of large-diameter medium-deep holes, using high torque output to minimize the risk of rod jamming. According to Epiroc's model coding rules, the "18" in the model designation represents the impact power class, while "38" represents the shank/rod thread diameter, corresponding to the T38 thread system.
Technically, the machine carries on the hydraulic double-damping system commonly adopted on models above 14 kW. By efficiently absorbing and dispersing reflected waves from the rock, it protects the rock drill's core components as well as supporting structures such as the boom and feed, while reducing impact stress on the drill steel and extending rod service life. The impact parameters can be steplessly adjusted by regulating the inlet and return oil pressures, allowing adaptation to rocks of different hardness. For lubrication, the head and drive unit are lubricated independently, with pressurized lubrication on meshing surfaces, reducing downtime and improving reliability.
Within the COP 1838 series, the 1838ME corresponds to the large-hole branch with hole diameters of 76 to 102 mm, forming a positioning distinction from the general-purpose COP 1838+ and the heavy-duty COP 1838HD+, among others. Its market position is now carried on by the COP 1838HE+.
In summary, the COP 1838ME is a hydraulic rock drill from the Atlas Copco era intended for large-diameter medium-deep hole drilling in underground mining. With its 19 kW impact power, 1550 N•m rotation torque and double-damping technology, it balances drilling efficiency with drill-steel economy.