Sandvik COP 1840+ Top-Hammer Rock Drill

The Sandvik COP 1840+ is a high-frequency hydraulic top-hammer rock drill designed for medium-to-heavy drilling applications on wheeled and crawler drill rigs, delivering a combination of high impact power and rapid feed cycling that maximises penetration rate in the wide range of rock types encountered across Saudi Arabian quarry and construction drilling operations. With a 18 kW hydraulic percussive output and an impact frequency of 55–65 Hz operating on 200–230 bar hydraulic circuit pressure, the COP 1840+ drills 38–64 mm diameter holes using standard T38 and T45 thread rods at penetration rates competitive with larger, heavier drills while offering superior fuel efficiency and drill steel longevity. The drill body incorporates Sandvik's proven XT28 shank adapter interface, which provides consistent energy transfer from the piston to the drill string and minimises stress wave reflections that cause premature thread wear.

The COP 1840+ is engineered for reliability in continuous operation environments. The hydraulic system uses a dedicated flushing circuit to keep the piston and bushing assembly free of rock dust and water, extending the time between major piston and liner replacements to 800–1,200 operating hours — a critical economic driver for Saudi quarry operators where crane-assisted drill maintenance in the field adds significant cost per overhaul event. The anti-jamming control logic in the hydraulic circuit detects rod jamming conditions and automatically reverses the rotation direction and reduces feed pressure before damage occurs to the drill string or chuck, reducing the frequency of expensive drill steel breakage at Saudi sites where abrasive siliceous rock causes rapid drill steel wear.

Top-hammer drilling with the COP 1840+ is the preferred drilling method for production blast-hole work at small-to-medium Saudi aggregate quarries, construction dewatering, and rock anchor installation for the massive retaining structures required by NEOM's mountainous terrain in the northwest Saudi Hejaz. The COP 1840+ is also used for secondary breaking of oversized quarry blast product using a hydraulic drifter bar mounted on an excavator breaker boom — a common task at Saudi quarry primary crushing feed points where oversized boulders exceed the jaw crusher's feed opening. The drill's compact installation envelope and compatibility with standard 200-bar auxiliary hydraulic circuits available on modern excavators and drill carriers make it straightforward to integrate into existing Saudi quarry equipment fleets.

Razz Middle East provides COP 1840+ drills, replacement piston and liner kits, shank adapters, and matched T38/T45 drill steel sets for Saudi Arabian drilling customers. Our technical support team advises on hydraulic pressure and flow optimisation for the specific carrier rig hydraulic circuit, and our field engineers provide in-country swap-out service for piston and bushing assemblies at planned maintenance intervals.