Komatsu HM300-2R Base

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