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Articulated haul truck

HM300-5

  • Gross horsepower 248 kW @ 2 000 rpm 332 HP @ 2,000 rpm
  • Operating weight 53 475 kg 117,892 lbs.
  • Capacity 27.2 mt 30.9 st

Durability and performance in one

When it comes to maximizing your productivity, the HM300-5 delivers maneuverability, comfort and durability in one — even in harsh conditions. Automated powertrain features allow consistent cycle times from all operator experience levels.

  • Excellent maneuverability
  • Automated powertrain features
  • Designed for durability

Features and benefits

Komatsu Traction Control System

Monitor and adjust to changing conditions. Komatsu Traction Control System (KTCS) is designed to provide excellent machine performance in soft and slippery ground conditions without sacrificing steering performance.

Maximize transmission life

Powerful acceleration, smooth down shifting and synchronized engine speed. The K-ATOMiCS transmission features a six-speed, fully automatic transmission with an advanced electronic system to reduce shift shock and torque cutoff for exceptional efficiency.

Greater confidence when traveling downhill

Increase operator confidence when traveling down hill through large capacity, continuously cooled, wet multiple-disk brakes that also function as a highly responsive retarder with 526 horsepower absorption capacity.

Smooth ride over rough terrain

Discover a smooth ride over the rough terrain with front and rear axle hydro-pneumatic suspensions. The rear axles are mounted on a dynamic equalizer structure and the entire system is designed to help reduce operator fatigue while offering a comfortable ride.

Comfortable operator environment

Improved cab entry in front of the front axle. A curved front dash panel. Thoughtful design enhancements throughout the cab provide the operator excellent visibility and a large, quiet environment to promote productivity and comfort.

Efficient loading

Monitor production with a standard, integrated payload meter that displays loaded material weight on the LCD monitor inside the cab. External lamps illuminate green, yellow or red as the payload increases to help prevent under and over loaded haul cycles.

Specifications for HM300-5

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US system Metric
Engine
Model Komatsu SAA6D125E-7*
Type Water-cooled, 4-cycle
Aspiration Turbo-charged, after-cooled, cooled EGR
Number of cylinders 6
Bore 125 mm
Stroke 150 mm
Piston displacement 11.0 L
Horsepower :
    SAE J1995 248 kW
    ISO 9249 / SAE J1349 242 kW
    Rated rpm 2 000 rpm
Fan drive type Hydraulic driven
Maximum torque 171 kg-m
Fuel system Direct injection
Governor Electronically controlled
Lubrication system:
    Method Gear pump, force-lubrication
    Filter Full-flow type
Air cleaner Dry type with double elements and precleaner, plus dust indicator

*EPA Tier 4 Final emissions certified

Model Komatsu SAA6D125E-7*
Type Water-cooled, 4-cycle
Aspiration Turbo-charged, after-cooled, cooled EGR
Number of cylinders 6
Bore 4.92 in
Stroke 5.91 in
Piston displacement 671 in3
Horsepower :
    SAE J1995 332 HP
    ISO 9249 / SAE J1349 324 HP
    Rated rpm 2,000 rpm
Fan drive type Hydraulic driven
Maximum torque 1,237 ft.-lbs.
Fuel system Direct injection
Governor Electronically controlled
Lubrication system:
    Method Gear pump, force-lubrication
    Filter Full-flow type
Air cleaner Dry type with double elements and precleaner, plus dust indicator

*EPA Tier 4 Final emissions certified

Transmission
Torque converter 3-elements, 1-stage, 2-phase
Transmission Full-automatic, counter-shaft type
Speed range 6 speeds forward and 2 reverse
Lockup clutch Wet, single-disc clutch
Forward Torque converter drive in 1st gear, direct drive in 1st lockup and all higher gears
Reverse Torque converter drive and direct drive in all gear
Shift control Electronic shift control with automatic clutch modulation in all gear
Maximum travel speed 58.6 kph
Torque converter 3-elements, 1-stage, 2-phase
Transmission Full-automatic, counter-shaft type
Speed range 6 speeds forward and 2 reverse
Lockup clutch Wet, single-disc clutch
Forward Torque converter drive in 1st gear, direct drive in 1st lockup and all higher gears
Reverse Torque converter drive and direct drive in all gear
Shift control Electronic shift control with automatic clutch modulation in all gear
Maximum travel speed 36.4 mph
Axles

Full time all wheel drive with Komatsu Traction Control System (K-TCS)

Final drive type Planetary gear
Ratios:
Differential 3.154
Planetary 4.667

Full time all wheel drive with Komatsu Traction Control System (K-TCS)

Final drive type Planetary gear
Ratios:
Differential 3.154
Planetary 4.667
Suspension system
Front Hydro-pneumatic suspension
Rear Combined hydro-pneumatic and rubber suspension system
Front Hydro-pneumatic suspension
Rear Combined hydro-pneumatic and rubber suspension system
Steering system
Type Articulated type, fully hydraulic power steering with two double-acting cylinders
Supplementary steering Automatically actuated, electrically powered
Standard ISO5010, SAE J1511
Minimum turning radius, wall to wall 8.10 m
Articulation angle 45° each direction
Type Articulated type, fully hydraulic power steering with two double-acting cylinders
Supplementary steering Automatically actuated, electrically powered
Standard ISO5010, SAE J1511
Minimum turning radius, wall to wall 26 ft. 7 in
Articulation angle 45° each direction
Cab
Standard ISO3449 (FOPS)
ISO3471 (ROPS)
Standard ISO3449 (FOPS)
ISO3471 (ROPS)
Brakes
Service brakes Full-hydraulic control, oil-cooled multiple-disc type on front and center axles
Standard ISO3450
Parking brake Spring applied, caliper disc type
Retarder Front and center axle brakes act as retarder
Service brakes Full-hydraulic control, oil-cooled multiple-disc type on front and center axles
Standard ISO3450
Parking brake Spring applied, caliper disc type
Retarder Front and center axle brakes act as retarder
Main frame

Type:

Articulated type, box-sectioned construction on front and rear Connected by strong torque tubes.

Type:

Articulated type, box-sectioned construction on front and rear Connected by strong torque tubes.

Body
Capacity:
    Struck16.9 13.4 m3
    Heaped (2:1, SAE) 17.1 m3
Payload 28.0 metric tons
Material - high tensile strength steel 130 kg/mm2
Material thickness:
    Bottom 14 mm
    Front 8 mm
    Sides 12 mm
Target area - (inside length x width) 5 250 mm x 2 685 mm
Heating Exhaust heating (optional)
Capacity:
    Struck16.9 17.5 yd3
    Heaped (2:1, SAE) 22.4 yd3
Payload 30.9 US tons
Material - high tensile strength steel 184,925 psi
Material thickness:
    Bottom 0.55 in
    Front 0.31 in
    Sides 0.47 in
Target area - (inside length x width) 17 ft. 3 in x 8 ft. 10 in
Heating Exhaust heating (optional)
Hydraulic system
Hoist cylinder Twin, telescopic type
Relief pressure 300 kg/cm2 / 29.4 MPa
Hoist time 10.5 s
Hoist cylinder Twin, telescopic type
Relief pressure 4,264 psi
Hoist time 10.5 s
Weight (approximate)
Empty weight 25 395 kg
Gross vehicle weight 53 475 kg
Weight distribution:
   Empty:
      Front axle 58.9%
      Center axle 22.5%
      Rear axles 18.6%
   Loaded:
      Front axle 30.8%
      Center axle 36.0%
      Rear axles 33.2%
Empty weight 55,986 lbs.
Gross vehicle weight 117,892 lbs.
Weight distribution:
   Empty:
      Front axle 58.9%
      Center axle 22.5%
      Rear axles 18.6%
   Loaded:
      Front axle 30.8%
      Center axle 36.0%
      Rear axles 33.2%
Tires

Standard tire

23.5 R25

Standard tire

23.5 R25

Service refill capacities
Fuel tank 388 L
DEF tank
32.8 L
Engine oil 35 L

Torque converter, transmission
and retarder cooling

80 L
Differentials (total) 71.5 L
Final drives (total) 23 L
Hydraulic system 103 L
Suspension (total) 10.4 L
Fuel tank 102.5 US gal
DEF tank
8.7 US gal
Engine oil 9.2 US gal
Torque converter, transmission
and retarder cooling
21.1 US gal
Differentials (total) 18.9 US gal
Final drives (total) 6.1 US gal
Hydraulic system 27.2 US gal
Suspension (total) 2.7 US gal
  • Air cleaner, dry type, double elements
  • Air cleaner dust level indicator
  • Air pre-cleaner
  • Alternator, 90 A, 24 V
  • Alarm, backup
  • Anti-slip material on fenders
  • Auxiliary steering system, automatic, electric
  • Back-up lamp
  • Batteries, 2 x 12 V/200 Ah
  • Battery disconnect
  • Centralized greasing
  • Color rear view camera and monitor
  • Coolant temperature alarm and lamp
  • Dump counter
  • ECO Guidance
  • Electronic hoist control system
  • Electric circuit breaker, 24 V
  • Electric priming fuel pump
  • Electronic pump for hydraulic tilt cab
  • Engine, Komatsu SAA6D125E-7
  • Engine underguard
  • Engine shutdown secondary switch
  • Front view mirror
  • Full-automatic F6-R2 transmission with lock-up torque converter & K-ATOMiC shift control
  • Hazard lamps
  • Hand rails for platform and ladder
  • Headlights, front (high and low)
  • Heated rearview mirrors, LH and RH side
  • Horn, electric
  • Hydraulic driven cooling fan, for after cooler
  • Hydraulic driven cooling fan, for radiator
  • Hydropneumatic suspension, front and rear
  • Interaxle lockup, wet disc clutch type, controlled by KTCS
  • Komatsu Traction Control System (KTCS)
  • Komatsu Diesel Particulate Filter (KDPF)
  • Komatsu Variable Geometry Turbocharger (KVGT)
  • KOMTRAX®
  • Ladders LH side
  • Mud guards
  • Parking brake
  • Payload Meter (PLM)
  • Protective grille for rear window
  • Propeller shaft guards, front and rear
  • Provision for tailgate
  • Retarder/brake system
  • Rims for 23.5 x 25, set of 6
  • ROPS/FOPS cab Level 2
    --2 x DC12V electrical outlets
    --12V cigarette lighter
    --Air conditioner/Heater/Defroster
    --Ashtray
    --Color LCD/TFT multi-monitor
    --Cup holder
    --Floor mat
    --Operator seat, reclining, air suspension type with 3-point retractable seat belt, 76 mm width lap belt, 50 mm  width shoulder belt
    --Passenger seat with 2-point retractable seat belt, 76 mm width
    --Power window (LH)
    --Space for lunch box
    --Sliding window (RH)
    --Steering wheel, tilt and telescopic
    --Sun visor, front window
    --Tiltable ROPS cab with FOPS, sound suppression type
    --Windshield washer and wiper, front and rear
  • Selective Catalytic Reduction (SCR) system
  • Starting motor, 7.5 kW
  • Steering joint locking assembly
  • Step (right side)
  • Stop, tail, and turn signal lamps (LED)
  • Tool box
  • Transmission underguard
  • Two mode engine power system (Economy and Power)
  • Work lamps, LH and RH side
  • Air cleaner, dry type, double elements
  • Air cleaner dust level indicator
  • Air pre-cleaner
  • Alternator, 90 A, 24 V
  • Alarm, backup
  • Anti-slip material on fenders
  • Auxiliary steering system, automatic, electric
  • Back-up lamp
  • Batteries, 2 x 12 V/200 Ah
  • Battery disconnect
  • Centralized greasing
  • Color rear view camera and monitor
  • Coolant temperature alarm and lamp
  • Dump counter
  • ECO Guidance
  • Electronic hoist control system
  • Electric circuit breaker, 24 V
  • Electric priming fuel pump
  • Electronic pump for hydraulic tilt cab
  • Engine, Komatsu SAA6D125E-7
  • Engine underguard
  • Engine shutdown secondary switch
  • Front view mirror
  • Full-automatic F6-R2 transmission with lock-up torque converter & K-ATOMiC shift control
  • Hazard lamps
  • Hand rails for platform and ladder
  • Headlights, front (high and low)
  • Heated rearview mirrors, LH and RH side
  • Horn, electric
  • Hydraulic driven cooling fan, for after cooler
  • Hydraulic driven cooling fan, for radiator
  • Hydropneumatic suspension, front and rear
  • Interaxle lockup, wet disc clutch type, controlled by KTCS
  • Komatsu Traction Control System (KTCS)
  • Komatsu Diesel Particulate Filter (KDPF)
  • Komatsu Variable Geometry Turbocharger (KVGT)
  • KOMTRAX®
  • Ladders LH side
  • Mud guards
  • Parking brake
  • Payload Meter (PLM)
  • Protective grille for rear window
  • Propeller shaft guards, front and rear
  • Provision for tailgate
  • Retarder/brake system
  • Rims for 23.5 x 25, set of 6
  • ROPS/FOPS cab Level 2
    --2 x DC12V electrical outlets
    --12V cigarette lighter
    --Air conditioner/Heater/Defroster
    --Ashtray
    --Color LCD/TFT multi-monitor
    --Cup holder
    --Floor mat
    --Operator seat, reclining, air suspension type with 3-point retractable seat belt, 3" width lap belt, 2" width shoulder belt
    --Passenger seat with 2-point retractable seat belt, 3" width
    --Power window (LH)
    --Space for lunch box
    --Sliding window (RH)
    --Steering wheel, tilt and telescopic
    --Sun visor, front window
    --Tiltable ROPS cab with FOPS, sound suppression type
    --Windshield washer and wiper, front and rear
  • Selective Catalytic Reduction (SCR) system
  • Starting motor, 7.5 kW
  • Steering joint locking assembly
  • Step (right side)
  • Stop, tail, and turn signal lamps (LED)
  • Tool box
  • Transmission underguard
  • Two mode engine power system (Economy and Power)
  • Work lamps, LH and RH side
  • 23.5 x 25 tires
  • 750/65 R25 rims
  • 750/65 R25 tires
  • Body, 17.1 m3
  • Body, exhaust heated, 17.1 m3     
  • Tail gate, scissors type
  • 23.5 x 25 tires
  • 750/65 R25 rims
  • 750/65 R25 tires
  • Body, 22.4 yd3
  • Body, exhaust heated, 22.4 yd3
  • Tail gate, scissors type
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