Make and model*
Gross horsepower** @ 1900 rpm
Net flywheel power*** @ 1900 rpm
* Optional Tier 4 emission compliant engine for North American market. Non-emissionized engine for markets outside of North America.
** Gross horsepower is the output of the engine as installed in this machine, at governed rpm and with engine manufacturer’s approved fuel setting. Accessory losses included are water pump, fuel pump and oil pump.
***Net flywheel power is the rated power at the engine flywheel minus the average accessory losses. Accessories include fan and charging alternator. Rating(s) represent net engine performance in accordance with SAE J1349 conditions.
Komatsu AC Drive
Wheel Motor Flow
IGBT AC Torque Control System
* Drive system performance depends upon gross vehicle weight, haul road grade, haul road length, rolling resistance and other parameters. Komatsu must analyze each job condition to assure acceptable application.
Tires and Rims
Rock service, tubeless, radial tires
41'' x 63'' x 5.5''
1041 mm x 1600 mm x 140 mm
Rims rated at 758 kPa / 110 psi cold inflation pressure.
Typical tire weight
* Tires should meet application requirements for tkph/tmph, tread, compound, inflation pressure, ply rating or equivalent, etc.
All-welded steel flat floor body with horizontal bolsters and full canopy. Rubber mounts on frame are standard. Eyebrow, body up sling, extended canopy and pivot exhaust heating are optional.
Floor sheet 200,000 psi / 1379 mPa tensile strength steel / Outer
Floor sheet 200,000 psi / 1379 mPa tensile strength steel / Center
Front sheet 200,000 psi / 1379 mPa tensile strength steel / Outer
Front sheet 200,000 psi / 1379 mPa tensile strength steel / Center
Side sheet 200,000 psi / 1379 mPa tensile strength steel
Canopy sheet 100,000 psi / 690 mPa tensile strength steel
SAE heaped 2:1
Standard Komatsu body weight
Advanced Operator Environment with integral 4-post ROPS/FOPS Level 2 cab (ISO 3449), adjustable air suspension seat w/lumbar support and arm rests, full-size passenger seat, maximum R-value insulation, tilt and telescoping steering column, electric windshield wipers w/washer, tinted glass, power windows, Payload Meter III, 61,000 Btu/hr heater and defroster, 19,900 Btu/hr air conditioning (HFC - 134A refrigerant).
Advanced technology, full butt-welded box sectional ladder-type frame with integral ROPS supports, integral front bumper, rear tubular cross members, steel castings at all critical stress transition zones, rugged continuous horsecollar.
Plate material tensile strength steel
Casting material tensile strength steel
Rail depth (minimum)
Top and bottom plate thickness
Side plate thickness / Rear
Side plate thickness / Front
Drive axle mounting
Pin and spherical bushing
Drive axle alignment
Swing link between frame and axle
Service brakes: Oil-cooled, hydraulic actuated, multiple disc brakes at each wheel
Wheel Spin-Slide Control
Max. service apply pressure
Total friction area per brake
Automatically applied prior to hydraulic system pressure dropping below level required to meet secondary stopping requirements.
Wheel brake locks
Multiple disc, spring-applied, hydraulically-released, dry brakes on inboard end of each wheel motor rotor shaft. Rated to hold on +-15% grade at maximum gross vehicle weight
Electric dynamic retarder
Continuously rated high-density blown grids w/retard capacity at low speeds and retard in reverse.
Variable rate hydro-pneumatic with integral rebound control
Max. front stroke
Max. rear stroke
Max. rear axle oscillation
L&M radiator assembly, split-flow, with deaerator-type top tank.
Radiator frontal area
190 U.S. gal
90 U.S. gal
350 U.S. gal
Motor gear box (each)
37 U.S. gal
1400 U.S. gal
Accumulator assisted with twin double acting cylinders provide constant rate steering. Secondary steering automatically supplied by accumulator.
Turning circle diameter (SAE)
250 U.S. gal
In-line replaceable elements
Single, full flow, 100 mesh
Hoist and steering
Dual, in-line, high pressure
Brake component cabinet
Above deck, easily accessible with diagnostic test connections
Two 3-stage dual-acting outboard cylinders, internal cushion valve, over-center dampening
Two pumps, single package, in-line
Hoist and brake cooling
Tandem gear pump with output of 931 lpm / 246 gpm at 1900 rpm and 18960 kPa / 2750 psi
Steering and brake
Pressure-compensating piston pump with output of 246 lpm / 65 gpm at 1900 rpm and 20685 kPa / 3,000 psi
Hoist and brake cooling
Steering and brake
Ports available for powering disabled truck and for system diagnostics.
4 x 8D 1450 CCA, 12 volt, in series/parallel, bumper-mounted with disconnect switch.
24 volt, 250 amp
Front Axle Distribution / 49.5%
Rear Axle Distribution / 50.5%
Front Axle Distribution / 33%
Rear Axle Distribution / 67%
720,000 lbs (360 short tons)
326585 kg (327 metric tons )
Nominal payload is defined by Komatsu America Corp’s payload policy documentation. In general, the nominal payload must be adjusted for the specific vehicle configuration and site application.
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The figures above are provided for basic product description purposes.
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