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Komatsu HM300-5 Off-Highway Truck

Komatsu HM300-5 is a rigid-frame off-highway haul truck designed for earthmoving, quarry, and mining applications. It is part of Komatsu's HM series and is used to transport large volumes of material over rough terrain. The HM300-5 typically features a high-capacity dump body, all-wheel drive, and a suspension system suited for uneven jobsite conditions. It is commonly paired with excavators and wheel loaders in loading and hauling operations. The model is known for its operator cab, payload efficiency, and service access. Komatsu HM300-5 is used in construction, aggregate, and site development fleets.


See all Komatsu HM300-5s for sale

General Specifications

Articulated/RigidArticulated
Starting 2024 Model Year
Drive Configuration6WD
Starting 2019 Model Year
Drive System Mech/Electr.Mech
Starting 2025 Model Year
Engine TypeKomatsu SAA6D125E-7
Starting 2019 Model Year
Mfg. ModelHM300-5
Starting 2019 Model Year
Off-Highway TrucksOff-Highway Trucks
Starting 2025 Model Year
Operating Weight lbs (kg)117,892 (53,475)
Starting 2019 Model Year
Rated Payload Tons (Metric Tons)30.9+E6 (28)
Starting 2021 Model Year

Articulating/Rigid

Articulating/RigidArticulated

Dimensions

Dump Ground Clearance2.00 ft (0.61 m)
Dump Height21.20 ft (6.46 m)
Ground Clearance1.90 ft (0.58 m)
Overall Height11.90 ft (3.63 m)
Overall Length33.80 ft (10.30 m)
Overall Width9.60 ft (2.93 m)
Wheelbase13.50 ft (4.11 m)

DRIVE SYSTEM

Drive Config6WD

Dump

Capacity - Heaped22.40 cu yd (17.13 cu m)
Capacity - Struck17.60 cu yd (13.46 cu m)
Rated Payload56,000.10 lbs (25,401.25 kg)

Engine

Bore5.00 in (12.70 cm)
Displacement673.80 cu in (11,041.63 cu cm)
Engine ModelSAA6D125E-7
Gross Power332.60 hp (248.02 kw)
MakeKomatsu
Max Torque1.30 lbs ft (1.76 nm)
Net Power324.60 hp (242.06 kw)
Number of Cylinders6
Power Measured @2000 rpm
Stroke6.00 in (15.24 cm)

Operating Specifications

Engine Oil Capacity9.30 gal (35.20 l)
Fuel Capacity102.50 gal (387.96 l)
Hydraulic System Fluid Capacity27.30 gal (103.33 l)
Tire Size23.5 R25
Transmission Fluid Capacity25.90 gal (98.03 l)

Transmission

Max Speed36.50 mph (58.74 kph)
Number of Forward Gears6
Number of Reverse Gears6
Transmission TypeFull-automatic Counter-shaft type

Weights

Center Axle - empty22.50 lbs (10.21 kg)
Center Axle - loaded36.00 lbs (16.33 kg)
Front Axle - loaded31.00 lbs (14.06 kg)
Operating Weight117,881.00 lbs (53,469.99 kg)
Rear Axle - empty18.50 lbs (8.39 kg)
Rear Axle - loaded33.00 lbs (14.97 kg)
Total Empty56.00 lbs (25.40 kg)
Total Loaded117.90 lbs (53.48 kg)

  • Komatsu HM300-5s currently for sale
  • A 2020 Komatsu HM300-5 From Linder Industrial Machinery Co. for Call for Price
  • A 2020 Komatsu HM300-5 From Road Machinery & Supplies Co. for $255,000.00 USD
  • A 2020 Komatsu HM300-5 From Road Machinery & Supplies Co. for $255,000.00 USD
  • A 2021 Komatsu HM300-5 From Road Machinery & Supplies Co. for $295,000.00 USD
  • A 2020 Komatsu HM300-5 From Linder Industrial Machinery Co. for $302,500.00 USD



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