Komatsu Mini Excavator PC55MR-5 | 5.1 ton

Description

Komatsu Mini Excavator PC55MR-5 | 5.1 ton

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The Komatsu PC55MR-5 is a highly versatile, short-tail mini excavator designed to deliver optimal digging speed and performance in confined spaces such as yards, road work, and demolition sites. Below are the detailed specifications for this 5.1-ton class machine.

Engine Specifications

• Engine Model: Komatsu 4D88E-7 (or 4D88E-6ZP depending on region)

• Type: Water-cooled, 4-cycle direct injection, emission certified

• Number of Cylinders: 4

• Engine Power (Net): 38.0 HP (28.3 kW) @ 2,400 rpm

• Engine Power (Gross): 39.7 HP (29.6 kW) @ 2,400 rpm

• Displacement: 2.189 Liters (134 cu in)

Weights & Ground Pressure

• Operating Weight (with Canopy): 5,150 kg (11,354 lbs)

• Operating Weight (with Cab): 5,270 kg – 5,300 kg (11,618 lbs)

• Ground Pressure (Canopy): 4.12 psi (28.9 kPa)

• Ground Pressure (Cab): 4.27 psi (29.6 kPa)

Performance Specs & Forces

• Bucket Digging Force (ISO): 3,980 kg (39.0 kN / 8,768 lbf)

• Arm Crowd Force (ISO): 2,440 kg (23.9 kN) with standard 1,640 mm arm

• Travel Speed (Low / High): 2.6 km/h / 4.6 km/h

• Maximum Drawbar Pull: 4,280 kgf (42.0 kN)

• Gradeability: 30°

• Swing Speed: 9.0 rpm

Working Ranges & Dimensions

• Standard Bucket Capacity: 0.055 – 0.18 m³

• Maximum Digging Depth: 3,770 mm (3.77 m)

• Maximum Digging Reach: 6,220 mm (6.22 m)

• Maximum Digging Height: 5,915 mm (5.92 m)

• Maximum Dumping Height: 4,200 mm (4.20 m)

• Transport Length: 5,550 mm

• Transport Width: 1,960 mm

• Transport Height: 2,590 mm

• Tail Swing Radius: 1,120 mm

• Shoe/Track Width: 400 mm

Hydraulic System

• System Type: Komatsu CLSS (Closed-Center Load Sensing System) for precise, simultaneous movements

• Main Pumps: 2 × Variable displacement axial piston pumps

• Maximum Pump Flow: 153.3 L/min (40.1 US gpm)

• Max Operating Pressure: 26.5 MPa (265 bar / 3,844 psi)

Key Technology & Features

• Fuel Efficiency: Uses up to 5% less fuel than previous generations due to electronic engine and hydraulic controls.

• Auto-Deceleration & Idle Shutdown: Automatically lowers RPMs or stops the engine after preset inactivity to lower fuel use.

• Working Modes: Features Power (P) mode for heavy workloads and Economy (E) mode for standard efficiency.

• Maintenance Friendly: Equipped with a tilting cab for deep component access and wide-opening side bonnets for daily ground-level checks.