Komatsu · Hydraulic Excavator

Komatsu PC128US-1 Specs

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Komatsu

Overview

The Komatsu PC128US-1 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 86 hp, operating weight of 27,999 lb, working depth of 17.87 ft, reach of 26.53 ft, capacity of 0.6 yd³ and travel speed of 31.7 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 PC128US-1 against similar hydraulic excavator models by power, weight, capacity, dimensions, speed, and other technical values.

Key Specifications

Operating Weight
27,998.80
lb

Gross Power
85.90
hp

Max Digging Depth
17.87
ft

Reference Bucket Capacity
0.60
yd3

Full Specifications

33 specs

Dimensions

Boom/Stick Option (Hex) 1 Boom 15'1" (4600mm)/Stick 8'2" (2500mm)

Ground Clearance 1.37 ft / 0.42 m

Height to Top of Cab 9.11 ft / 2.78 m

Length of Track on Ground 9.03 ft / 2.75 m

Max Cutting Height 30.52 ft / 9.30 m

Max Digging Depth 17.87 ft / 5.45 m

Max Loading Height 22.91 ft / 6.98 m

Max Reach Along Ground 26.53 ft / 8.09 m

Max Vertical Wall Digging Depth 15.97 ft / 4.87 m

Removal Counterweight Clearance 3 lb / 1 kg

Shipping Height Of Unit 9.11 ft / 2.78 m

Shipping Length Of Unit 25.71 ft / 7.84 m

Tail Swing Radius 4.81 ft / 1.47 m

Width To Outside Of Tracks 8.08 ft / 2.46 m

Engine

Displacement 239 cu in / 3.9 L

Engine Make 2238

Engine Model S4D102E

Fuel Capacity 35.70 gal / 135.1 L

Gross Power 86 hp / 64.1 kW

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

Hydraulic System Fluid Capacity 32.30 gal / 122.3 L

Hydraulic System Relief Valve Pressure 5,050 psi / 348.2 bar

Maximum Bucket Capacity 0.90 yd³ / 0.69 m³

Minimum Bucket Capacity 0.50 yd³ / 0.38 m³

Number of Cylinders 4

Operating Weight 27,999 lb / 12,700 kg

Power Measured @ 2,200 rpm

Reference Bucket Capacity 0.60 yd³ / 0.46 m³

Swing Speed 12 deg

Undercarriage

Ground Pressure 6 psi / 0.4 bar

Max Travel Speed 31.69 mph / 51.0 km/h

Shoe Size 19.69 in / 500 mm

Track Gauge 6.44 ft / 1.96 m

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Frequently Asked Questions

What is the operating weight of the Komatsu PC128US-1? +

The Komatsu PC128US-1 has an operating weight of 27,999 lb (12,700 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 PC128US-1 engine? +

The Komatsu PC128US-1 produces 86 hp (64.1 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 PC128US-1? +

The Komatsu PC128US-1 has a maximum digging depth of 17.87 ft (5.45 m). This makes it suitable for trenching, foundation work, and other excavation tasks requiring vertical reach.

What is the maximum reach of the Komatsu PC128US-1? +

The Komatsu PC128US-1 has a maximum reach along the ground of 26.53 ft (8.09 m), allowing it to work effectively across wide areas without repositioning.

What is the travel speed of the Komatsu PC128US-1? +

The Komatsu PC128US-1 has a maximum travel speed of 31.7 mph (51.0 km/h), enabling efficient movement between work areas on the job site.

How does the Komatsu PC128US-1 compare to similar Hydraulic Excavator models? +

You can compare the Komatsu PC128US-1 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.