Komatsu HM400-2R Base

Specifications of Komatsu HM400-2R Base

Engine

• (SAE J1995) Gross 338 kW 453 HP
• Aspiration Turbo-charged, after-cooled
• Bore 140 mm 5.51"
• Engine Model Komatsu SAA6D140E-5
• Fan drive type Mechanical
• Fuel Diesel
• Fuel system Direct injection
• Governor Electronically controlled
• Maximum Torque 213 kg•m 1,541 lb. ft
• Number of Cylinders 6
• Piston displacement . 15.24 ltr 930 in³
• Rated rpm 2000 rpm
• Stroke 165 mm 6.50"
• Type Water-cooled, 4-cycle

Body Capacities

• Heaped (2:1, SAE) 22.3 m³ 29.2 yd³
• Material 130 kg/mm² 185,000 psi
• Payload 36.5 metric tons 40 U.S. tons
• Struck 16.5 m³ 21.6 yd³

Transmission

• Forward Torque converter drive in 1st gear,
• Lockup clutch Wet, single-disk clutch
• Maximum Travel Speed 58.5 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 97 ltr.
• Engine Oil 50 ltr.
• Final drives (total) 32 ltr.
• Fuel Tank 493 ltr. 130.3 U.S. Gal
• Hydraulic System 180 ltr. 47.6 U.S. Gal
• retarder cooling 115 ltr. 30.4 U.S. Gal
• Suspension (total) 20.4 ltr.

Hydraulic System

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

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) standard

STEERING SYSTEM

• Maximum steering angle 45° each direction
• Minimum turning radius 8.7 m 28'7"
• Supplementary steering Automatically actuated, electrically powered
• Type Accumulator assisted with twin double acting cylinders provide constant rate steering. Secondary steering automatically supplied by accumulator

Weight Distributions - Approximate

• Empty weight 32,460 kg 71,560 lb
• Empty: Front axle 55.1%
• Empty: Rear axle 22.8%
• Loaded: Rear axle 35.3%
• Max. gross vehicle weight 69,040 kg