Komatsu PC78MR-6 Mini Excavator


Boom/Stick Option (Hex) 1

Shipping Length Of Unit 20.34 ft in (6200 mm)
Shipping Height Of Unit 8.96 ft in (2730 mm)
Max Cutting Height 21.56 ft in (6570 mm)
Max Loading Height 14.82 ft in (4515 mm)
Max Reach Along Ground 22.84 ft in (6960 mm)
Max Vertical Wall Digging Depth 9.52 ft in (2900 mm)
Max Digging Depth 13.65 ft in (4160 mm)
Boom/Stick Option (Hex) 1 Standard arm

Boom/Stick Option (Hex) 2

Shipping Length Of Unit 20.35 ft in (6200 mm)
Shipping Height Of Unit 8.96 ft in (2730 mm)
Max Cutting Height 22.31 ft in (6800 mm)
Max Loading Height 15.65 ft in (4770 mm)
Max Reach Along Ground 24.56 ft in (7485 mm)
Max Digging Depth 15.57 ft in (4745 mm)
Max Vertical Wall Digging Depth 10.86 ft in (3310 mm)
Boom/Stick Option (Hex) 2 Long arm

Dimensions

Width To Outside Of Tracks 7.62 ft in (2320 mm)
Length Of Track On Ground 7.34 ft in (2235 mm)
Ground Clearance 1.19 ft in (360 mm)
Height To Top Of Cab 8.96 ft in (2730 mm)
Tail Swing Radius 4.61 ft in (1405 mm)
Removal Counterweight Clearance 2.42 ft in (735 mm)

Undercarriage

Shoe Size 17.72 in (450 mm)
Track Gauge 6.14 ft in (1870 mm)
Drawbar Pull 14550 lb (64.73 kN)
Number Of Carrier Rollers Per Side 1
Number Of Shoes Per Side 39
Number Of Track Rollers Per Side 5
Ground Pressure 5.4 psi (37.24 kPa)
Max Travel Speed 2.61 mph (4.2 km/h)

Engine Details

Number Of Cylinders 4
Engine Make Komatsu
Engine Model S4D95LE-3
Net Power 54 hp (40.3 kw)
Power Measured @ 1850 rpm
Displacement 199 cu in (3.3 L)
Aspiration Turbocharged with aftercooler

Operational Specs

Operating Weight 18232.3 lb (8270 kg)
Fuel Tank Capacity 33.1 gal (125 L)
Cooling System Fluid Capacity 2.8 gal (10.5 L)
Operating Voltage 24 V
Hydraulic System Fluid Capacity 29.1 gal (110 L)
Engine Oil Capacity 2 gal (7.5 L)
Alternator Supplied Amperage 25 amps
Hydraulic System Relief Valve Pressure 3840.4 psi (26478 kPa)
Hydraulic Pump Flow Capacity 42.3 gal/min (160 L/min)

Swing Mechanism

Swing Speed 10 rpm

Buckets

Reference Bucket Capacity 0.4 yd3 (0.3 m3)
Minimum Bucket Capacity 0.2 yd3 (0.1 m3)
Maximum Bucket Capacity 0.5 yd3 (0.4 m3)
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