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Key specifications
- Engine
- Komatsu 4D88E-7 (4-cyl, naturally aspirated, cooled EGR)
- Net Power
- 28.3 kW / 38 HP @ 2,400 rpm
- Operating Weight
- 5,150 - 5,270 kg (11,354 - 11,618 lbs)
- Bucket Capacity (SAE)
- 0.055 - 0.18 m³ (0.07 - 0.24 yd³)
- Max Digging Depth
- 3,770 mm (12'4")
- Max Reach (at ground)
- 6,075 mm (19'11")
Model overview
The Komatsu PC55MR-5 is a compact mini excavator designed for confined urban job sites with extra-small swing radius. EPA Tier 4 Final compliant, it combines a fuel-efficient 38 HP Komatsu engine with advanced HydrauMind closed-center load sensing hydraulics for precise control. Standard features include KOMTRAX Level 5 telematics, automatic two-speed travel, and integrated ROPS/OPG protective structures.
At a glance
Weight Class5.1 - 5.3 tonnes
Design TypeExtra-small swing radius
HydraulicsCLSS with load sensing
Working ModesPower (P) and Economy (E)
Specifications sourced from komatsu.com (official manufacturer page).

