KOBELCO SK850LC SUPER ACERA CRAWLER EXCAVATOR

Technical Description

The Kobelco SK850LC Super ACERA is a heavy-duty excavator designed for high productivity and durability in demanding construction environments. It features a powerful 496 hp (370 kW) Komatsu SAA6D140E-5 engine with electronic common-rail direct injection, turbocharging, and intercooling, delivering strong torque of approximately 1621 lb-ft (2197 Nm) at 1350 rpm. This engine meets modern emission standards, improves fuel efficiency with multiple work modes including H (high power), S (standard), B (one-way flow attachments), and A (two-way flow attachments), and incorporates an auto idle stop system to reduce fuel consumption and emissions. The SK850LC has an operating weight of around 177,330 lbs (about 80,400 kg) and a maximum digging depth reaching 31.8 ft (9.7 meters), complemented by a maximum digging reach of approximately 47.8 ft (14.56 meters). Its bucket capacity ranges between 2.8 and 5.4 cubic meters, providing excellent material handling capability. The excavator is equipped with a reinforced XD boom and arm, large track guides, solid rock guards, and upgraded hydraulic and cooling systems to enhance operational durability and reliability. Its hydraulic system includes two variable displacement piston pumps and one gear pump with a maximum discharge flow of 2 x 504 L/min and 30 L/min, supporting powerful breakout and crowding forces, making it efficient for heavy digging tasks. The robust travel system offers travel speeds up to 4.2 km/h and gradeability of 70%, ensuring agility on challenging terrain. Operator comfort is prioritized through a super airtight, sound-suppressed cab with adjustable suspension seat, wide front window for visibility, low vibration, and a color multi-display with rearview camera. Safety is enhanced with Level 2 FOPS cab guard and hydraulic disc braking. Overall, the SK850LC Super ACERA balances impressive power, extensive working range, enhanced fuel economy, and operator-focused design to maximize productivity in large-scale excavation projects.