Like a number of other excavator builders, Hyundai unveiled new models at the vast bauma 2007 construction and mining machinery trade show held in late April in Munich, Germany. Among the new machines that Hyundai planned to exhibit is the 179,000-pound Robex R800LC-7A, which represents a major class leap from the company's former top-of-the-line, 50-mt R500LC-7A, and is aimed directly at the quarry/small-mine market sector.

Equipped with a 4.5 cubic yard bucket capacity, the R800LC-7A is powered by a Cummins QSX 15 Tier 3-certified diesel rated at 460 horsepower. Fully integrated engine control unit (ECU) reportedly offers 10 times the storage and computing power of previous models, for more efficient and intelligent engine management. All components of the excavator's structure that are subject to high stress levels have been reinforced, and heavy-duty electronic cables, and water- and dust-resistant plug connections contribute to high reliability. To minimize maintenance costs and improve efficiency, the machine is equipped with an automatic lubrication system. All major control and maintenance points are designed for maximum accessibility, while the hydraulic-oil filter change interval is set at 1,000 operating hours.

Hyundai says the R800LC-7A employs a new generation of its CAPO (computer aided power optimization) system, providing precise control of machine hydraulics for specific jobs. A Power Boost feature gives 10% more breakout force instantly at the push of a joystick button, while working in “hammer” mode allows the pressure to drop immediately upon sudden fragmentation of the rock, which prevents unnecessary wear and damage from dry-firing. Individual operator setting preferences can be saved and recalled from shift to shift.