Komatsu HM400-5 Mining Truck

Komatsu HM400-5 Mining Truck

Gross Power 353 kW 473 HP
Max. Torque 2263 Nユm 231 kgユm 1669 ft lbs
Displacement 15.24 ltr 928 in3
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New Tier 4 Final Engine

The Komatsu SAA6D140E-7 engine is EPA Tier 4 Final emissions certified and provides exceptional performance while reducing fuel consumption. Based on Komatsu proprietary technologies developed over many years, this new diesel engine reduces nitrogen oxides (NOx) by more than 80% when compared to Tier 4 interim levels. Through the in-house development and production of engines, electronics, and hydraulic components, Komatsu has achieved great advancements in technology, providing high levels of performance and efficiency in virtually all applications.

HM300-5  

Komatsu Auto Idle Shutdown

Komatsu auto idle shutdown automatically shuts the engine down after idling for a set period of time to reduce unnecessary fuel consumption and exhaust emissions. The amount of time before the engine is shutdown can be easily programmed from 5 to 60 minutes.

HM300-5  

Selectable Working Modes

Power mode
Appropriate for higher production jobs and uphill hauling applications. The power mode increases the engine maximum output and raises the upshift and downshift engine speeds during operation.

Economy mode
Appropriate for lighter work on flat ground. The economy mode lowers the engine maximum output along with lowering the upshift and downshift engine speeds during operation.

HM300-5  

Large Capacity Body

The HM400-5 has a heaped body capacity of 24.0 m3 / 31.4 yd3. The low loading height of 3164 mm 10'4" enables easy loading. The body is built of high strength, wear-resistant steel with a Brinell hardness of 400 and the body shape provides excellent load stability. HM400’s frame employs a rigid box structure utilizing high tensile strength steel - rugged enough for the toughest jobs.

HM300-5  

Komatsu Designed Electronically Controlled Countershaft Transmission

The Komatsu designed electronically controlled transmission called K-ATOMiCS has been a success in Komatsu’s dump trucks. The electronic clutch modulation system ensures proper clutch pressure when the clutch is engaged. The total control system controls both the engine and the transmission by monitoring the vehicle conditions. This high technology system assures smooth shifts with minimal shock and maximizes the power train life.


Komatsu Traction Control System (KTCS)

The KTCS was developed by Komatsu to allow for maximum machine performance in soft and slippery ground conditions. Komatsu leveraged its prior experience with the traction control systems in bulldozers and rigid dump trucks to develop this system for use in articulated dump trucks.
The KTCS monitors the wheel speeds on the front and middle axles. If the system detects wheel slip, it will automatically engage the inter axle lock to improve machine performance. If the machine continues to detect wheel slip it will brake the wheel that slip was detected on. It will continually monitor the wheel speeds and engage the brakes as necessary.
KTCS is automatically activated and deactivated. The inter-axle lock can also be engaged by the operator via a rocker switch located on the dash panel.

HM300-5  

Payload Meter (PLM)

A payload meter is included as standard equipment on the new HM300-5. The payload tonnage is displayed on the Machine Monitor and is visible to the haul truck operator. An external display lamp mounted on the top of the cab communicates payload status to the loader operator. The external display lamp indicator lights are visible from both sides of the truck so it is always in sight of the loader operator.

PLM data is transmitted by KOMTRAX and can be accessed via the internet. Detailed data is stored in the truck’s controller and can be directly downloaded from the truck to a PC.

HM300-5  

Rear View Monitoring System

The rear view camera and monitor are equipped as standard.


Hydraulically Controlled Wet Multiple-disc Brakes and Retarder

Wet multiple-disc brakes with proven performance in other Komatsu dump trucks are tailored for use in the HM300-5. The large-capacity, continuously cooled, wet-multiple disc brakes also function as a highly responsive retarder which gives the operator greater confidence at higher speeds when travelling downhill.

Retarder Absorbing Capacity (continuous descent): 510 kW 684 HP


ECO Guidance

The monitor panel provides guidance to the operator to help promote energy saving operation. For example, if the operator stops the machine for a long period of time with the engine idling, the message “Avoid excessive engine idling” is displayed on the monitor panel. The ECO guidance function displays six (6) messages:
• Avoid Excessive Engine Idling
• Release the Hoist Lever
• Operating the Accelerator Pedal with Brake Actuated Lowers Fuel Economy
• Shift Up
• Avoid Operating the Accelerator Pedal with the Body Moving Down
• Avoid Hard Use of Steering


ECO Gauge

The ECO gauge indicates a momentary fuel consumption rate during operation.

Operating the machine by keeping the gauge within the green zone leads to energy-saving operation.

HM300-5  

Ground Access to Filters

The oil filters of the transmission and the brake systems can be serviced from ground level.

HM300-5  

Easy Access DEF Tank

Located to the rear of the fuel tank, and easy to access.

HM300-5  

Tiltable Cab with Power Tilt

The cab can be tilted rearward by 29 degrees to provide easy access to the engine and transmission for service. Electrically-operated cab tilt is standard.

HM300-5  

Engine

Model
Komatsu SAA6D140E-7*
Type
Water-cooled, 4-cycle
Aspiration
Komatsu variable geometry, turbo-charged, after-cooled, cooled EGR
Number of cylinders
6
Bore140 mm5.51"
Stroke165 mm6.5"
Piston displacement15.24 ltr928 in3
Horsepower:

SAE J1995353 kW473 HP
ISO 9249 / SAE J1349348 kW466 HP
Rated rpm
2000 rpm
Fan drive type
Hydraulic
Maximum torque2263 Nユm
231 kgユm
1669 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 (cyclonpack type), plus dust indicator
*EPA Tier 4 Final emissions certified

Transmissions

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 speed55.9 km/h34.7 mph

Axles

Full time all wheel drive


Final drive typePlanetary gear
Ratios:
Differential3.727
Planetary4.941

Suspension System

FrontHydro-pneumatic suspension
RearCombined 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 wall8.8 m28' 10"
Articulation angle
45° each direction

Cab

StandardISO3449 (FOPS)
ISO3471 (ROPS)

Brakes

Service brakesFull-hydraulic control, oil-cooled multiple-disc type on front and center axles
StandardISO3450
Parking brakeSpring applied, caliper disc type
RetarderFront and center axle brakes act as retarder

Main Frame

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

Body

Capacity:

Struck18.2 m323.8 yd3
Heaped (2:1, SAE)24 m331.4 yd3
Payload40 metric tons44.1 U.S. tons
Material - high tensile strength steel130 kg/mm2184,925 psi
Material thickness:

Bottom16 mm0.63"
Front8 mm0.31"
Sides12 mm0.47"
Target area - (inside length x width)5667 mm x 3194 mm18' 7" x 10' 6"
Heating
Exhaust heating (option)

Hydraulic System

Hoist cylinder
Twin, telescopic type
Relief pressure28.4 Mpa / 290 kg/cm2  4119 psi
Hoist time
12.0 sec

Weight (approximate)

Empty weight35005 kg77,283 lbs
Gross vehicle weight75135 kg165,644 lbs
Weight distribution:

Empty:Front axle56.9%

Center axle23.6%

Rear axles19.5%
Loaded:Front axle30.4%

Center axle35.8%

Rear axles33.8%

Tires

Standard tire29.5 R25

Service Refill Capacities

Fuel tank525 L138.7 U.S. gal
DEF tank34.0 L9.0 U.S. gal
Engine oil50 ltr13.2 U.S. gal
Torque converter, transmission and retarder cooling125 L33 U.S. gal
Differentials (total)108 L28.5 U.S. gal
Final drives (total)32 L8.5 U.S. gal
Hydraulic system167 L44.1 U.S. gal
Suspension (total)21.4 L5.7 U.S. gal

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