The Komatsu PC55MR-3 is a compact 5.5-ton crawler excavator powered by a 29.6 kW (39.7 HP) engine at 2,400 rpm. It features a short tail swing design for tight spaces, load-sensing hydraulics for smooth operation, a maximum digging depth of approximately 3,870 mm, and travel speeds up to 4.8 km/h. The ROPS/FOPS-certified cab offers operator safety and comfort, with easy access to maintenance points.