Overview
The Komatsu PC78UU-8 Midi Excavator is a midi excavator listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include operating weight of 17,549 lb, travel speed of 2.9 mph and fuel capacity of 33.1 gal. This model can be reviewed for excavation, trenching, loading, site preparation, and fleet comparison workflows. Use the full specifications table to compare the Komatsu PC78UU-8 Midi Excavator against similar midi excavator models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Operating Weight
17,548.80
lb
Overall Length
19.89
ft
Full Specifications
41 specs
Dimensions
Overall Height
8.96 ft / 2.73 m
Overall Length
19.89 ft / 6.06 m
Overall Track Width
7.62 ft / 2.32 m
Track Length On Ground
7.34 ft / 2.24 m
Engine
Alternator
25 A
Arm Crowd Force – Iso
3,960 lb / 1,796 kg
Arm Size
5.70 in / 145 mm
Boom Size
12.30
Bucket Crowd Force – Iso
6,250 lb / 2,835 kg
Bucket Size – Kga Standard Gp
0.30
Bucket Weight - Kga Gp
456 lb / 207 kg
Digging Depth – Maximum
13.90 ft / 4.24 m
Digging Reach – Maximum
21 ft / 6.40 m
Displacement
199 cu in / 3.3 L
Drawbar Pull, Maximum (Kg)
6,820 lb / 3,093 kg
Engine Make
2238
Engine Model
SAA4D95LE-5
Engine Type
Water-cooled,4-cycle,Direct Injection
Fuel Tank
33.10 gal / 125.3 L
Horsepower, Gross-Sae J1995
58 hp / 43.0 kW
Horsepower, Net-Iso 9249
55 hp / 41.0 kW
Horsepower, Net-Sae J1349
55 hp / 41.0 kW
Hydraulic
29.1
Maximum Reach @ Ground Level
20.50 ft / 6.25 m
Number of Cylinders
4
Operating Weight
17,549 lb / 7,960 kg
Power Measured @
1,950 rpm
Quick Hitch Weight – Kga
232 lb / 105 kg
Radiator
2.80
Starter
3.0 kW / 4 hp
Swing Speed
1,340 deg
Travel Speed
2.90 mph / 4.7 km/h
Hydraulics
Economy Sub-Mode Selections
4
Engine Oil
2 gal / 7.6 L
Selectable Work Modes
5
Undercarriage
Ground Pressure
1 psi / 0.0 bar
Number Of Carrier Rollers Per Side
1
Number Of Shoes Per Side
39
Number of Track Rollers per Side
5
Shoe Size
17.72 in / 450 mm
Track Gauge
6.14 ft / 1.87 m
Frequently Asked Questions
What is the operating weight of the Komatsu PC78UU-8 Midi Excavator? +
The Komatsu PC78UU-8 Midi Excavator has an operating weight of 17,549 lb (7,960 kg). This places it in a class suited for midi excavator applications where ground pressure and transport weight are key considerations.
What is the travel speed of the Komatsu PC78UU-8 Midi Excavator? +
The Komatsu PC78UU-8 Midi Excavator has a maximum travel speed of 2.9 mph (4.7 km/h), enabling efficient movement between work areas on the job site.
How does the Komatsu PC78UU-8 Midi Excavator compare to similar Midi Excavator models? +
You can compare the Komatsu PC78UU-8 Midi Excavator 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.