CATERPILLAR 385B CRAWLER EXCAVATOR

Technical Description

The Caterpillar 385B hydraulic excavator is a high-performance machine designed for heavy-duty excavation with multiple boom and stick configurations offering extensive operational flexibility. It features a powerful Caterpillar 3456 ATAAC engine delivering 530 hp (395 kW) at 1800 rpm, ensuring robust performance for demanding digging and loading tasks. The machine's operating weight ranges from approximately 183,940 to 189,770 lbs, depending on the undercarriage configuration. It boasts a maximum travel speed of 2.8 mph and a drawbar pull of 133,087 lbs, suitable for rough terrain. The 385B offers six boom/stick options, with maximum digging depths ranging from 23.5 ft to 37.9 ft and maximum cutting heights up to 49.1 ft, catering to varied job requirements. Its maximum reach along the ground extends to 56 ft, while vertical wall digging depth reaches up to 20.7 ft. The machine’s bucket capacity is substantial, with a maximum of 7.1 cubic yards, and a reference capacity of 3.9 cubic yards, enabling efficient material handling. Its hydraulic system operates at pressures up to 5,075 psi for travel, 4,640 psi for equipment, and features a pump flow capacity of 258.9 gpm. The boom and stick cylinders have large bores and strokes for strong force application, with boom cylinders at 8.3 in bore and 77.4 in stroke, and stick cylinders at 8.7 in bore and 89.1 in stroke. Dimensions include a ground clearance of 3 ft, track gauge of 11.6 ft, and track shoe size of 25.6 in. The cab is ergonomically designed with six viscous mounts for vibration damping and sound reduction, featuring spacious, climate-controlled comfort with excellent all-around visibility. The advanced electronic control system and remote greasing points facilitate ease of operation and maintenance, making the Caterpillar 385B a reliable and versatile excavator for large-scale construction and mining projects.