Komatsu HM400-2 Off-Highway Truck Specs

Category: Off-Highway Trucks ➔
Manufacturer: Komatsu ➔
Model: HM400-2 ➔

Komatsu HM400-2 is an articulated off-highway truck designed for hauling material in construction, quarry, and mining applications. It is part of Komatsu's HM series and is commonly used for earthmoving, aggregate transport, and site development work. The HM400-2 features a 40-ton class payload capacity, articulated steering, and a six-wheel drive configuration for traction on uneven terrain. It is powered by a Komatsu diesel engine and paired with an automatic transmission for load transport cycles. The truck is built for off-road haulage, with a dump body, suspension system, and operator cab designed for material handling operations.

Dimensions

Komatsu HM400-2 Off-Highway Truck Dimensions specifications
Dump Ground Clearance	2.33 ft (0.71 m)
Dump Height	23.42 ft (7.14 m)
Ground Clearance	2.00 ft (0.61 m)
Overall Height	12.17 ft (3.71 m)
Overall Length	37.08 ft (11.30 m)
Overall Width	11.33 ft (3.45 m)
Wheelbase	17.50 ft (5.33 m)

Dump

Komatsu HM400-2 Off-Highway Truck Dump specifications
Capacity - Heaped	29.2 cu yd
Capacity - Struck	21.6 cu yd
Dump Angle	70 degrees
Raise Time	12 sec
Rated Payload	80,634.07 lbs (36,575.04 kg)

Engine

Komatsu HM400-2 Off-Highway Truck Engine specifications
Aspiration	Turbocharged
Displacement	928.00 cu in (15,207.23 cu cm)
Engine Make	2238
Engine Model	SAA6D140E-5
Gross Power	453.00 hp (337.81 kw)
Net Power	438.00 hp (326.62 kw)
Number Of Cylinders	6
Power Measured @	2100 rpm

Operational

Komatsu HM400-2 Off-Highway Truck Operational specifications
Engine Oil Capacity	13.20 gal (49.96 l)
Fuel Capacity	130.80 gal (495.08 l)
Hydraulic System Fluid Capacity	47.60 gal (180.17 l)
Tire Size	29.5R25

Transmission

Komatsu HM400-2 Off-Highway Truck Transmission specifications
Max Speed	36.40 mph (58.58 kph)
Number Of Forward Gears	6
Number Of Reverse Gears	2
Transmission Type	full automatic, countershaft type

Weights

Komatsu HM400-2 Off-Highway Truck Weights specifications
Center Axle - Empty	16316 %
Center Axle - Loaded	54335 %
Front Axle - Empty	39,430.00 lbs (17,885.17 kg)
Front Axle - Loaded	44138 %
Rear Axle - Empty	15,815.00 lbs (7,173.57 kg)
Rear Axle - Loaded	53,727.00 lbs (24,370.19 kg)
Total Empty	71,560.00 lbs (32,459.11 kg)
Total Loaded	152,200.00 lbs (69,036.84 kg)

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