Komatsu-HM300-2R

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Komatsu HM300-2R Base

Variants

Specifications of Komatsu HM300-2R Base

Engine

  • (SAE J1995) Gross 254 kW 340 HP
  • Aspiration Turbo-charged, after-cooled
  • Bore 125 mm 4.92"
  • Engine Model Komatsu SAA6D125E-5
  • Fan drive type Mechanical
  • Fuel diesel
  • Fuel system Direct injection
  • Governor Electronically controlled
  • Maximum Torque 174 kg•m 1,259 lb. ft
  • Number of Cylinders 6
  • Piston displacement . 11.04 ltr. 674 in³
  • Rated rpm 2000 rpm
  • Stroke 150 mm 5.91"
  • Type Water-cooled, 4-cycle

Body Capacities

  • Heaped (2:1, SAE) 12.9 m³ 16.9 yd³
  • Material 130 kg/mm²
  • Payload 27.3 metric tons
  • Struck 16.6 m³ 21.7 yd³

Transmission

  • Forward Torque converter drive in 1st gear,
  • Lockup clutch Wet, single-disk clutch
  • Maximum Travel Speed 58.6 km/h 36.4 mph
  • Speed range 6 speeds forward and 2 reverse
  • Torque Converter Type 3-elements, 1-stage, 2-phase
  • Transmission Full-automatic, counter-shaft type

Service Refill Capacities

  • Differentials 77.5 ltr. 20.5 U.S. Gal
  • Engine Oil 37 ltr. 9.8 U.S. Gal
  • Final drives (total) 24 ltr. 6.3 U.S. Gal
  • Fuel Tank 384 ltr. 101.5 U.S. Gal
  • Hydraulic System 120 ltr. 31.7 U.S. Gal
  • Suspension (total) 10.4 ltr. 2.7 U.S. Gal

Hydraulic System

  • Hoist time 12 sec
  • Relief pressure 20.6 MPa 210 kg/cm² 2,990 psi

Tires

  • Standard Tires 23.5 R25

Axles

  • Final drive type Planetary gear

Brakes

  • Parking brakes Spring applied, caliper disc type
  • Retarder Front and center axle brakes act as retarder
  • Service brakes Full-hydraulic control, oil-cooled m ultiple-disc type on front and center axles

Cab

  • Cab Dimensions comply with ISO 3471 ROPS (Roll-Over Protective Structure) standards

STEERING SYSTEM

  • Maximum steering angle 45° each direction
  • Minimum turning radius 7.96 m
  • Supplementary steering Automatically actuated, electrically powered
  • Type Articulated type, fully hydraulic power steering with two double-acting cylinders

Weight Distributions - Approximate

  • Empty weight 24,040 kg 53,000 lb
  • Empty: Front axle 55.8%
  • Empty: Rear axle 20.6%
  • Loaded: Rear axle 34.2%
  • Max. gross vehicle weight 51,420 kg 113,360 lb

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