Main Technical Specifications
MAKE Komatsu
MODEL PC55MR-5

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New Komatsu PC55MR-5 Excavator for Sale

The PC55MR-5 has a maximum track width of only 77” and a tight minimum swing radius, yet delivers outstanding performance in reach, digging depth, bucket break-out force and lifting capabilities. From the high strength X-Track frame to the ample castings in the boom and arm, the PC55MR-5 is made to deliver high performance for years to come.

  • NEW ENGINE TECHNOLOGIES: The PC45MR-5 is equipped with a clean engine that complies with the EPA Tier 4 Final emission regulations. The engine uses proven environment friendly technologies such as an exhaust gas aftertreatment system, an electronically-controlled cooled Exhaust Gas Recirculation (EGR) system, and an optimum fuel injection system using a common rail. These technologies, combined with Komatsu’s own electronic control system, minimize environmental impact and improve fuel economy.
  • ELECTRONIC CONTROL SYSTEM: The engine and hydraulic system are optimally controlled according to the operating conditions. The hydraulic loss reductions also help reduce both fuel consumption and environmental impact.
    • Fuel consumption: Reduced Up To 5% Fuel consumption
    • Comparison with Komatsu’s prior models: The average working pattern is analyzed by KOMTRAX. The above data may differ from actual fuel consumption depending on the type of work. The fuel consumption data is based on in-house comparison test results.

  • MULTI-FUNCTION MONITOR: Various alerts and machine information are displayed in a simple format. Useful information such as operation records, machine setting and maintenance data are also provided. The operator can easily switch screens.
  • EFFICIENT AND EFFECTIVE MAINTENANCE: The side opening engine hood and large side cover provide easy access for daily inspections. The cab or platform can be tilted up together with the operator’s seat to gain access for major maintenance or repair work.
  • MINIMUM SWING RADIUS: The extra-small swing radius with minimum rear protrusion from the tracks (60mm for PC45MR-5) allows the operator to concentrate on work in confined areas.
  • ENHANCED WORKING ENVIRONMENT
    • Mid back, suspension operator seat
    • Integrated ROPS cab design (ISO 3741:2008)
    • Cab meets ISO Level 1 Operator Protective Guard (OPG) top guard (ISO 10262)
    • Aux jack and 12V outlet
    • Radio-ready cab

Body
Frame Center frame: X-frame
Track Frame: Box-section
Steering Two levers with pedals
Dimensions
Length 18 ft. 3 in. (5,550 mm)
Width 6 ft. 5 in. (1,957 mm)
Height 8 ft. 4 in. (2,539 mm)
Weight 11,354 lbs. (5,150 kg) operating with canopy
11,618 lbs. (5,270 kg) operating with cab
Ground Clearance Counterweight: 2’
Minimum: 11”
Fuel Tank Capacity 17.2 gal. (65 l)
Engine
Engine Make Komatsu
Engine Model 4D88E-7
Engine Type Water-cooled, 4-cycle, direct injection, cooled EGR
Cylinders 4
Horsepower 38 HP
Net Horsepower 38 @ 2400 rpm
Cooling Water
Bore x Stroke 3.46 x 3.54 in. (88 x 90 mm)
Displacement 134 cu. in. (2.19 l)
Rated Speed - High 2.9 mph (4.6 km/h)
Rated Speed - Low 1.6 mph (2.6 km/h)
Governor All-speed control, electronic
Rated RPM 2400 RPM
Aspiration Naturally aspirated
Piston Displacement 134 in³
Drivetrain
Number of Speeds 2
Track Width 1 ft. 4 in. (400 mm)
Brakes Service: Hydraulic lock
Parking: Mechanical disc
Gradeability 30 degrees
Track Length 8'3"
6'7" (on ground)
Drawbar Pull 9436 lbf
Track Type Sealed
Track Rollers 4 (each side)
Ground Pressure ROPS Canopy: 4.12 PSI
ROPS Cab: 4.27 PSI
Carrier Rollers 1 (each side)
Track Adjuster Hydraulic
Hydraulic
Pump Boom, arm, bucket, and travel circuits; Type: Variable displacement, axial piston
Swing and blade; Type: Fixed displacement gear
Std Pump Flow Max: 42.2 gal/min (boom, arm, bucket and travel circuits)
Max: 16.64 gal/min (swing and blade)
Hydraulic Tank Capacity 14.5 gal. (55 l)
Hydraulic Cylinders Number of cylinders; bore x stroke x rod diameter
Boom: 1-3.54” x 27.2” x 1.97”
Arm: 3.35” x 28.9” x 2.17”
Bucket: 2.95” x 22.8” x 1.97”
Boom Swing: 3.74” x 24.8” x 1.97”
Blade: 1-4.33” x 5.5” x 1.97”
Relief Valve Setting Implement circuit: 3844 PSI
Travel circuit: 3844 PSI
Swing circuit: 3133 PSI
Pilot circuit: 455 PSI
Blade circuit (Raise, lower): 3133 PSI
Hydraulic Motors Travel: 2 x axial piston motor with parking brake
Swing: 1 x axial piston motor with swing holding brake
Auxiliary Flow 18 gal/min
Relief: 2494 PSI
Operational
Dig Depth 12’4”
Dig Height 19 ft. 5 in. (5,915 mm)
Arm Length 5’5”
Bucket Reach 20 ft. 5 in. (6,220 mm) digging
Bucket Digging Force 8,774 lbs. (3,980 kg)
Dump Height 13 ft. 9 in. (4,200 mm)
Bucket Capacity 0.07 – 0.24 yd³
Travel Speed - Forward High-2.9 mph; Low-1.6 mph
Maximum Reach 20’5”; at ground-19’11”
Boom Length 9 ft. 6 in. (2,900 mm)
Boom Swing Angle Left: 85°
Right: 50°
Tail Swing Radius 3 ft. 8 in. (1,120 mm)
Boom Swing Radius 7’6”; when boom swings-5’9”
Max. Arm Digging Force 8768 lbf
Swing Speed 9 RPM
Shoes 39 each side
Shoe Width 1’4”
Track Gauge 5’1”
Swing Reduction Planetary gear
Swing Circle Lubrication Grease-bathed
Swing Lock Mechanical disc brake
Swing Brake Hydraulic lock
Drive Method Hydrostatic
Hydraulic Type HydrauMind (Hydraulic Mechanical Intelligence New Design) system

  • ENGINE
    • Air cleaner, double element with auto dust evacuator
    • Cooling fan, suction type
    • Side by side cooling package
  • ELECTRICAL SYSTEM
    • Alternator, 12 V/55 A
    • Auto deceleration
    • Battery, 1 x 12 V/72 Ah
    • Starting motor 12 V/2.3 kW
    • Working light on boom
    • Working light on cab or canopy
  • HYDRAULIC SYSTEM
    • Auxiliary hydraulics with selector valve
  • GUARDS AND COVERS
    • Fan guard structure
    • Thermal guard
  • UNDERCARRIAGE
    • Shoe, 400 mm 16" rubber shoe
  • OPERATOR ENVIRONMENT
    • 12 V x 1 power supply
    • Automatic two-speed travel control
    • Lock lever auto lock function
    • Monitor panel, 3.5" color display
    • Operator identification function
    • Rear view mirrors (RH, LH, rear)
    • Seat belt, 76 mm 3" retractable
    • Suspension seat (mid height)
    • Travel alarm
    • Travel lamp
    • Two-post ROPS canopy
  • WORK EQUIPMENT
    • Arm —1640 mm 5'4.5"arm assembly with piping
    • Backfill blade
    • Boom — 2900 mm 9'6" boom assembly with piping
  • OTHER EQUIPMENT
    • Auto idle shutdown function
    • KOMTRAX® Level 5 - cellular based
    • Swing holding brake

  • UNDERCARRIAGE
    • Road Liner track (400 mm 16")
    • Steel track (400 mm 16")
  • OPERATOR ENVIRONMENT
    • Cab with hinged door, air conditioner, radio ready, auxiliary input (3.5 mm jack) ready
    • Proportional Control Joysticks
  • WORK EQUIPMENT
    • Angle dozer blade
    • Wide variety of attachments

*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.