Komatsu HM300-3 Off-Highway Truck Specs

Category: Off-Highway Trucks ➔
Manufacturer: Komatsu ➔
Model: HM300-3 ➔

Komatsu HM300-3 is a rigid-frame off-highway truck designed for hauling material in mining, quarry, and large earthmoving applications. It is part of Komatsu's HM-series articulated and rigid haul truck lineup and is commonly used for site development, road construction, and bulk material transport. The HM300-3 is powered by a Komatsu diesel engine and features a high-capacity dump body, all-wheel drive, and operator-focused controls for production hauling. Its design emphasizes load carrying, traction, and durability on rough terrain. The model is used in applications requiring efficient transport of soil, rock, aggregate, and overburden.

Dimensions

Komatsu HM300-3 Off-Highway Truck Dimensions specifications
Dump Ground Clearance	5.70 ft (1.74 m)
Dump Height	9.31 ft (2.84 m)
Ground Clearance	9.60 ft (2.93 m)
Overall Height	21.40 ft (6.52 m)
Overall Length	33.80 ft (10.30 m)
Overall Width	11.60 ft (3.54 m)
Wheelbase	7.60 ft (2.32 m)

Dump

Komatsu HM300-3 Off-Highway Truck Dump specifications
Capacity - Heaped	22.4 cu yd
Capacity - Struck	17.5 cu yd
Dump Angle	45 degrees
Lower Time	10.5 sec
Raise Time	10.5 sec
Rated Payload	30.90 lbs (14.02 kg)

Engine

Komatsu HM300-3 Off-Highway Truck Engine specifications
Aspiration	Komatsu Variable turbo charge
Displacement	11.10 cu in (181.90 cu cm)
Engine Model	Komatsu SAA6D125E-6
Gross Power	332.00 hp (247.58 kw)
Max Torque	1,239.00 lbs ft (1,679.84 nm)
Net Power	324.00 hp (241.61 kw)
Number Of Cylinders	6
Power Measured @	2000 rpm

Operational

Komatsu HM300-3 Off-Highway Truck Operational specifications
Cooling System Fluid Capacity	25.90 gal (98.03 l)
Engine Oil Capacity	9.20 gal (34.82 l)
Fuel Capacity	102.60 gal (388.34 l)
Hydraulic System Fluid Capacity	27.20 gal (102.95 l)
Tire Size	23.5 R25
Transmission Fluid Capacity	25.90 gal (98.03 l)

Transmission

Komatsu HM300-3 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	Auto

Weights

Komatsu HM300-3 Off-Highway Truck Weights specifications
Total Empty	54,917.00 lbs (24,909.96 kg)
Total Loaded	116,823.00 lbs (52,990.09 kg)

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