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Komatsu PC78MR-6 Mini Excavator

The Komatsu PC78MR-6 Mini Excavator is a powerful and versatile machine designed for various excavation tasks. With a maximum cutting height of 22.4 ft and a maximum digging depth of 15.6 ft, this excavator offers impressive reach and capabilities. Equipped with a turbocharged engine delivering 54 horsepower, along with a hydraulic pump flow capacity of 42.3 gpm, this machine ensures efficient performance on the job site. Additionally, with its compact design and user-friendly controls, the PC78MR-6 is suitable for navigating tight spaces while maintaining stability and power.


See all Komatsu PC78MR-6s for sale

General Specifications

Boom/Stick Excavator Option 1

Max Cutting Height22 ft (7 m)
Max Digging Depth14 ft (4 m)
Max Loading Height15 ft (5 m)
Max Reach Along Ground23 ft (7 m)
Max Vertical Wall Digging Depth10 ft (3 m)
Shipping Height of Unit9 ft (3 m)
Shipping Length of Unit20 ft (6 m)

Boom/Stick Excavator Option 2

Max Cutting Height22 ft (7 m)
Max Digging Depth16 ft (5 m)
Max Loading Height16 ft (5 m)
Max Reach Along Ground25 ft (7 m)
Max Vertical Wall Digging Depth11 ft (3 m)
Shipping Height of Unit9 ft (3 m)
Shipping Length of Unit20 ft (6 m)

Bucket

Maximum Bucket Capacity1 cu yd (0 cu m)
Minimum Bucket Capacity0 cu yd (0 cu m)
Reference Bucket Capacity0 cu yd (0 cu m)

Dimensions

Ground Clearance1 ft (0 m)
Height - Top of Cab9 ft (3 m)
Removal Counterweight Clearance3 ft (1 m)
Tail Swing Radius5 ft (1 m)
Width to Outside of Tracks8 ft (2 m)

Engine

AspirationTurbocharged with aftercooler
Displacement199 cu in (3,261 cu cm)
Engine ModelS4D95LE-3
Net Power54 hp (40 kw)
Number of Cylinders4
Power Measured @1850 rpm

Operating Specifications

Alternator Supplied Amperage25 amps
Cooling System Fluid Capacity3 gal (11 l)
Engine Oil Capacity2 gal (8 l)
Fuel Capacity33 gal (125 l)
Hydraulic Pump Flow Capacity42 gpm (160 lpm)
Hydraulic System Fluid Capacity29 gal (110 l)
Hydraulic System Relief Valve Pressure3840.4 psi
Operating Voltage24 volts
Operating Weight18,232 lbs (8,270 kg)

Swing Mechanism

Swing Speed10 rpm

Undercarriage

Drawbar Pull14,550 lbs (6,600 kg)
Ground Pressure5.4 psi
Max Travel Speed3 mph (4 kph)
Number of Carrier Rollers per Side1
Number of Shoes per Side39
Number of Track Rollers per Side5
Shoe Size18 in (45 cm)
Track Gauge6 ft (2 m)

  • Komatsu PC78MR-6s currently for sale
  • A 2008 Komatsu PC78MR-6 From McCoy Construction & Forestry for $39,000.00 USD
  • A 2007 Komatsu PC78MR-6 From Ritchie Bros. Auctioneers for Auction Pricing
  • A 2010 Komatsu PC78MR-6 From Tracey Road Equipment, Inc. for Call for Price
  • A 2005 Komatsu PC78MR-6 From Anderson Equipment Company for Call for Price





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