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Earthmovers ---> Excavators Manufacturer Companies  -->  Komatsu  Excavators  -->  PC20MR-2


                
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

Model

 

Komatsu 3D76E-5

Type

 

Water cooled, 4 cycle, swirl chamber

Number of cylinders

 

3

Piston displacement

68 in³

1.115 ltr

Flywheel horsepower @ 2500 rpm:

20.8 HP

15.5 kW

EPA,EU, and Japan Tier 2 emission certified.

 

 


Hydraulics

Type

 

HydrauMind (Hydraulic Mechanical Intelligence) system,

 

 

closed-center system with load-sensing valve and pressure-compensated valves

Main pump:

 

 

Type

 

Variable Capacity x1

Maximum flow

14.2 U.S. gal/min

53.9 ltr/min

Hydraulic motors:

 

 

Travel

 

Variable Capacity x2

Swing

 

Fixed capacity x 1

Maximum pressure setting

3,555 psi

250 kg/cm2

Auxiliary flow

9.2 gal/min

35 ltr/min



Performance

Swing speed

 

8.9 rpm

Ground pressure

4.0 psi

0.28 kg/cm2

Maximum traction force

4,540 lb

2060 kg

Gradeability

 

30 degrees

Bucket digging force

4,235 lb

1920 kg

Arm crowd force

3,065 lb

1390 kg



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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