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Specifications

• 2024 Komatsu Excavators PC45MR-5
• Year2024
• ManufacturerKomatsu
• Model NameExcavators
• Trim NamePC45MR-5
• Generic Type (Primary)Mini
• EngineModel: 4D88E-7
• Engine ManufacturerKomatsu
• CoolingWater-cooled, cooled EGR | Fan drive method for radiator cooling: Mechanical
• Cylinder Liners4
• Bore3.46 in | Hydraulic cylinders Boom: 3.54 in | Hydraulic cylinders Arm: 3.14 in | Hydraulic cylinders Bucket: 2.76 in | Hydraulic cylinders Boom swing: 3.54 in | Hydraulic cylinders Blade: 4.33 in
• Stroke3.54 in | Hydraulic cylinders Boom: 27.2 in | Hydraulic cylinders Arm: 25.6 in | Hydraulic cylinders Bucket: 22.8 in | Hydraulic cylinders Boom swing: 24.8 in | Hydraulic cylinders Blade: 5.5 in
• DisplacementPiston: 134 in³
• Engine PowerSAE J1995 - Gross: 39 HP | ISO 9249 / SAE J1349 - Net: 38 HP
• Rated Engine Speed2,400 rpm
• Engine Type4-cycle,
• AspirationNaturally aspirated
• LubricationSwing circle lubrication: Grease-bathed
• Motor
• Motor TypeTravel: 2 x axial piston motor with parking brake | Swing: 1 x axial piston motor with swing holding brake
• Fuel System
• Fuel Injectiondirect
• Drivetrain
• GovernorAll-speed control, electronic
• Steeringcontrol: Two levers with pedals
• Drive Systemmethod: Hydrostatic | Swing System method:Planetary gear
• Brakes
• Brake System TypeHydraulic lock | Swing brake: Hydraulic lock | Swing lock: Mechanical disc brake
• Parking BrakeMechanical disc
• Operational
• Operating ConditionsGradeability: 30° | Maximum drawbar pull: 9,436 lbf.
• Operating SpeedHigh: 2.9 mph | Low: 1.6 mph | Swing: 9 rpm
• Ground PressureROPS Canopy, Rubber Shoe: 3.98 psi | ROPS Cab, Rubber Shoe: 4.12 psi
• Hydraulics
• Pump TypePumps for: Boom, arm, bucket, and travel circuits | Type: Variable displacement, axial piston | Pumps for: Swing and blade | Type: Fixed displacement gear
• Hydraulic FlowMaximum flow: 40.1 gpm | Maximum flow: 16.6 gpm
• Relief Valve SettingImplement circuits: 3,844 psi | Travel circuit: 3,844 psi | Swing circuit: 3,133 psi | Pilot circuit: 455 psi | Blade circuit (Raise, Lower): 3,133 psi
• Frame TypeCenter frame: X-frame | Track frame: Box-section
• DimensionsShoes: 16 in | Hydraulic cylinders Boom (rod diameter): 1.97 in | Hydraulic cylinders Arm (rod diameter): 1.97 in | Hydraulic cylinders Bucket (rod diameter): 1.77 in | Hydraulic cylinders Boom swing (rod diameter): 1.97 in | Hydraulic cylinders Blade (rod diameter): 1.97 in
• Capacities
• Fuel CapacityEngine: 2.2 (2.0) US gal | tank: 17.2 US gal | Final drive (each side): 0.2 US gal
• Hydraulic Capacity14.5 (5.3) US gal
• Cooling System2.4 US gal
• Weights
• Weight, In Running OrderROPS Canopy, Rubber Shoe: 10,737 lbs. | ROPS Cab, Rubber Shoe: 11,001 lbs.
• FeaturesSwing reduction: Planetary gear | Number of shoes (each side): 39 | Number of carrier rollers (each side): 1 | Number of track rollers (each side): 4
• Track TypeSealed | adjuster: Greased gun