Komatsu · Hydraulic Excavator

Komatsu PC138US-2 Specs

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Komatsu

Overview

The Komatsu PC138US-2 is a hydraulic excavator listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 88 hp, operating weight of 29,718 lb, working depth of 16.64 ft, reach of 25.61 ft, capacity of 0.7 yd³ and travel speed of 3.2 mph. This model can be reviewed for excavation, trenching, loading, site preparation, and fleet comparison workflows. Use the full specifications table to compare the Komatsu PC138US-2 against similar hydraulic excavator models by power, weight, capacity, dimensions, speed, and other technical values.

Key Specifications

Operating Weight
29,718.40
lb

Net Power
88
hp

Max Digging Depth
16.64
ft

Reference Bucket Capacity
0.70
yd3

Full Specifications

46 specs

Dimensions

Boom/Stick Option (Hex) 1 Monoboom 4600 mm w/ arm 2100mm

Ground Clearance 1.30 ft / 0.40 m

Height to Top of Cab 9.24 ft / 2.82 m

Length of Track on Ground 9.45 ft / 2.88 m

Max Cutting Height 29.60 ft / 9.02 m

Max Digging Depth 16.64 ft / 5.07 m

Max Loading Height 21.41 ft / 6.53 m

Max Reach Along Ground 25.61 ft / 7.81 m

Max Vertical Wall Dig Depth 10.41 ft / 3.17 m

Max Vertical Wall Digging Depth 14.74 ft / 4.49 m

Monoboom 4600 mm w/ arm 2100mm 2

Monoboom 4600 mm w/ arm 2500mm 3

Monoboom 4600 mmw/ arm 3000mm 4

Removal Counterweight Clearance 3 lb / 1 kg

Shipping Height Of Unit 8.63 ft / 2.63 m

Shipping Length Of Unit 23.70 ft / 7.22 m

Tail Swing Radius 4.86 ft / 1.48 m

Width To Outside Of Tracks 8.17 ft / 2.49 m

Engine

Alternator Supplied Amperage 35 A

Cooling System Fluid Capacity 4.90 gal / 18.5 L

Displacement 199 cu in / 3.3 L

Engine Make 2238

Engine Model SAA4D95LE-3

Engine Oil Capacity 4.50 gal / 17.0 L

Fuel Capacity 52.90 gal / 200.2 L

Hydraulic Pump Flow Capacity 59.80 gal/min / 226.4 L/min

Hydraulic System Fluid Capacity 18.30 gal / 69.3 L

Hydraulic System Relief Valve Pressure 5,049 psi / 348.1 bar

Maximum Bucket Capacity 1 yd³ / 0.76 m³

Minimum Bucket Capacity 0.50 yd³ / 0.38 m³

Net Power 88 hp / 65.6 kW

Number of Cylinders 4

Operating Voltage 24 V

Operating Weight 29,718 lb / 13,480 kg

Power Measured @ 2,200 rpm

Reference Bucket Capacity 0.70 yd³ / 0.54 m³

Swing Drive Fluid Capacity 0.70 gal / 2.6 L

Swing Speed 10.50 deg

Undercarriage

Drawbar Pull 27,558 lb / 12,500 kg

Ground Pressure 6 psi / 0.4 bar

Max Travel Speed 3.17 mph / 5.1 km/h

Number Of Carrier Rollers Per Side 1

Number Of Shoes Per Side 43

Number of Track Rollers per Side 7

Shoe Size 19.69 in / 500 mm

Track Gauge 6.53 ft / 1.99 m

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Frequently Asked Questions

What is the operating weight of the Komatsu PC138US-2? +

The Komatsu PC138US-2 has an operating weight of 29,718 lb (13,480 kg). This places it in a class suited for hydraulic excavator applications where ground pressure and transport weight are key considerations.

How powerful is the Komatsu PC138US-2 engine? +

The Komatsu PC138US-2 produces 88 hp (65.6 kW) of engine power. This output is typical for its weight class and designed to handle demanding Hydraulic Excavator work cycles efficiently.

What is the maximum digging depth of the Komatsu PC138US-2? +

The Komatsu PC138US-2 has a maximum digging depth of 16.64 ft (5.07 m). This makes it suitable for trenching, foundation work, and other excavation tasks requiring vertical reach.

What is the maximum reach of the Komatsu PC138US-2? +

The Komatsu PC138US-2 has a maximum reach along the ground of 25.61 ft (7.81 m), allowing it to work effectively across wide areas without repositioning.

What is the travel speed of the Komatsu PC138US-2? +

The Komatsu PC138US-2 has a maximum travel speed of 3.2 mph (5.1 km/h), enabling efficient movement between work areas on the job site.

How does the Komatsu PC138US-2 compare to similar Hydraulic Excavator models? +

You can compare the Komatsu PC138US-2 side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.