- Track Gauge: 6.14 ft / 1870 mm
- Track Length On Ground: 7.34 ft / 2235 mm
- Overall Height: 8.96 ft / 2730 mm
- Overall Length: 19.89 ft / 6060 mm
Published dimensions and weight
Komatsu PC78UU-8
The Komatsu PC78UU-8 is a 8 t-class midi excavator with a 57.7 hp engine.
01Published dimensions and weight
Dimensions reference
Representative category illustration; exact model may differ.Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight17548.8 lb7960 kg
03Selected published values51
Midi excavators are commonly used for digging, trenching and site work where a mid-size tracked machine fits the access available. Published rows for Komatsu PC78UU-8 include published operating weight of 17548.8 lb / 7960 kg, the published “Track Gauge” field of 6.14 ft / 1870 mm, the published “Track Length On Ground” field of 7.34 ft / 2235 mm. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Track Gauge” field (6.14 ft / 1870 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Track Length On Ground” field (7.34 ft / 2235 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Overall Height” field (8.96 ft / 2730 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Dimensions
Track Gauge6.14 ft1870 mm
Track Length On Ground7.34 ft2235 mm
Overall Height8.96 ft2730 mm
Overall Length19.89 ft6060 mm
Overall Track Width7.62 ft2320 mm
Undercarriage
Shoe Size17.72 in450 mm
Ground Pressure0.69 psi4.7 kPa
Adjustment Of The Track TensionGreaseGrease
Shoe TypeRoadlinerRoadliner
Number Of Carrier Rollers Per Side11
Number Of Shoes Per Side3939
Number Of Track Rollers Per Side55
Electrical System
Alternator25 A25 A
Starter3.0 kw3.0 kw
Battery55 Ah55 Ah
Engine
Horsepower, Gross-Sae J199557.7 hp43 kw
Horsepower, Net-Iso 924955 hp41 kw
Horsepower, Net-Sae J134955 hp41 kw
Number Of Cylinders44
Engine Make22382238
Engine ModelSAA4D95LE-5SAA4D95LE-5
Engine TypeWater-cooled,4-cycle,Direct InjectionWater-cooled,4-cycle,Direct Injection
Power Measured @1950 rpm1950 rpm
Displacement199 cu in3.3 L
AspirationTurbochargedTurbocharged
Fan Drive TypeMechanicalMechanical
Driveline
Drawbar Pull, Maximum (Kg)68206820
Travel Speed2.9/5.02.9/5.0
Capacities
Fuel Tank33.1 gal125 L
Engine Oil2 gal7.5 L
Radiator2.8 gal10.5 L
Hydraulic29.1 gal110 L
Operational
Swing Speed1340 rpm1340 rpm
Boom Size12.3 ft3.8 m
Boom TypeStandardStandard
Arm Size5.7 ft1.8 m
Bucket Crowd Force – Iso62506250
Arm TypeStandardStandard
Bucket Size – Kga Standard Gp0.3 yd30.3 m3
Arm Crowd Force – Iso39603960
Digging Reach – Maximum21 ft6400 mm
Digging Depth – Maximum13.9 ft4230 mm
Maximum Reach @ Ground Level20.5 ft6240 mm
Swing Mechanism
Swing Speed10 rpm10 rpm
Weights
Operating Weight17548.8 lb7960 kg
Bucket Weight - Kga Gp456.4 lb207 kg
Quick Hitch Weight – Kga231.5 lb105 kg
Hydraulic System
Hydraulic System TypeHydrauMind SystemHydrauMind System
Selectable Work Modes55
Economy Sub-Mode Selections44
Main Pump TypeVariable displacement, axial pistonVariable displacement, axial piston
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Manufacturer-published specifications.