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Excavators - Komatsu Excavators
- PC20MR-2
Tight Tail Swing
The operator can focus on the work in front and worry less about rear swing impact in confined areas with 80 mm 3.2" overhand on the rear.
Large Operator’s Space
The operator can operate the machine comfortably due to suspension seat with adjustable seat back. On canopy models, the operator can enter and exit easily from both sides due to increased foot space and two-post ROPS canopy.
Two-Post ROPS/FOPS Canopy/Cab
• Each canopy/cab meets safety regulations for ROPS/FOPS guard
• Unsurpassed operator visibility
Superior Digging Force
Exceptional productivity combined with outstanding stability and superb fine control with CLSS hydraulic system.
X-Track Frame
Soil does not accumulate on the track frame due to its rounded design and wide openings. The x-frame also provides greater strength and rigidity.
Superior Lifting Capacity
The MR-2 series excavators offer high lifting capacities and stability in a tight tail machine design.
Automatic Two-Speed Travel
In high speed mode, travel speed is automatically shifted from high speed to low speed according to the load on the machine
Large Operator’s Cab
The cab on the MR-2 series compact excavators has the same foot space as the larger PC228USLC-3 excavator.
Tilt Forward Operator’s Compartment
The operator’s compartment tilts forward allowing easy access to hydraulic and engine components.
Specifications
Engine
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Model
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Komatsu
3D76E-5
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Type
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Water
cooled, 4 cycle, swirl chamber
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Number
of cylinders
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3
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Piston
displacement
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68
in³
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1.115
ltr
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Flywheel
horsepower @ 2500 rpm:
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20.8
HP
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15.5
kW
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EPA,EU,
and Japan Tier 2 emission certified.
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Hydraulics
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Type
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HydrauMind
(Hydraulic Mechanical Intelligence) system,
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closed-center
system with load-sensing valve and pressure-compensated valves
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Main
pump:
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Type
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Variable
Capacity x1
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Maximum
flow
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14.2
U.S. gal/min
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53.9
ltr/min
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Hydraulic
motors:
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Travel
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Variable
Capacity x2
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Swing
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Fixed
capacity x 1
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Maximum
pressure setting
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3,555
psi
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250
kg/cm2
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Auxiliary
flow
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9.2
gal/min
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35
ltr/min
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Performance
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Swing
speed
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8.9
rpm
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Ground
pressure
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4.0
psi
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0.28
kg/cm2
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Maximum
traction force
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4,540
lb
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2060
kg
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Gradeability
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30
degrees
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Bucket
digging force
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4,235
lb
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1920
kg
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Arm
crowd force
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3,065
lb
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1390
kg
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Standard Equipment
• Air cleaner, single element
• Automatic two-speed travel control
• Backfill blade
• Counterweight
• Pattern change valve (Excavator/Backhoe)
• Rubber track
• Rearview mirrors, RH/LH
• Suspension seat
• Seat belt 76 mm 3"
• Steering pedals
• Two–post canopy ROPS and Top Guard
• Travel alarm
Optional Equipment
• Additional cab light
• Additional canopy light
• Arm arrangements from 1016 mm 3'4" to 1372 mm 4'6"
• Auxiliary hydraulics
• Buckets from 254 mm 10" to 533 mm 21"
• Cab
• Hydraulic breaker
• Reinforced blade assembly
• Steel track
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