Komatsu HX45 Underground Truck

Dump System

Nominal Payload Capacity 99000 lb (45000 kg)
Body Capacity 1 (Standard) 27.5 yd3 (21 m3)
Body Capacity 2 24.9 yd3 (19 m3)
Body Capacity 3 31.4 yd3 (24 m3)
Body Hoist Raise Time 15 sec
Body Hoist Lower Time 13 sec
Dump Angle 68°
Front and Rear Frames Welded steel box construction
Material S690, S355
Frame Oscillation Angle ±8°

Komatsu HX45 Underground Truck Dimensions

Dimensions

A. Height to Top of Cab 106 in (2699 mm)
B. Tramming Length 430 in (10935 mm)
C. Sideboard Height 109 in (2775 mm)
D. Height to Dump Box Up 247 in (6263 mm)
E. Front Axle to Center Hinge 76 in (1930 mm)
F. Rear Axle to Center Hinge 134 in (3400 mm)
G. Ground Clearance 15 in (390 mm)
H. Dump Clearance Length 40 in (1010 mm)
J. Dump Clearance Height 22 in (570 mm)
K. Overall Width (not including box, mirrors) 121 in (3062 mm)
L. Width Over Dump Box 121 in (3062 mm)
M. Turning Angle 43°
N. Outside Turning Radius 357 in (9066 mm)
P. Inside Turning Radius 195 in (4945 mm)
R. Dump Angle 68°

Komatsu HX45 Underground Truck Weight

Weights

Komatsu HX45 Empty Loaded
Operating Weight 83380 lb (37900 kg) 182380 lb (82900 kg)
Front Axle Load 59840 lb (27200 kg) 85800 lb (39000 kg)
Rear Axle Load 23540 lb (10700 kg) 96580 lb (43900 kg)

Engine Details

Number of Cylinders 6
Engine Make Mercedes Benz
Engine Model Mercedes OM473 (MTU 6R 1500)
Displacement 781 cu in (15.6 L)
Bore 5.5 in (139 mm)
Stroke 6.7 in (171 mm)
Gross Horsepower 617 hp (460 kw)
Power Measured @ 1600 rpm
Peak Torque 2213 lb ft (3000 Nm)
Torque Measured @ 1300 rpm
Air Cleaner Dry air filter
Fuel System Common rail injection system
Fuel Consumption at Rated Power 27.2 gal/h (102.8 L/h)
Fuel Consumption at Peak Torque 26.9 gal/h (101.7 L/h)
Aftertreatment One-box aftertreatment system with SCR/DPF incl. muffler
Aspiration Turbo charging, turbo compound, air to air cooling
Emission Standards US EPA Tier 3 + EU Stage IIIA / US EPA Tier 4F + EU Stage V

Komatsu HX45 Underground Truck Specs

Operational Specs

Max Operating Weight 182380 lb (82900 kg)
Payload Capacity 99000 lb (45000 kg)
Operating Voltage 24 V
Alternator 150 amps
Battery 2x 12 V, 180 Ah, Heavy duty
Lights 5x Front lights + 4x Side lights + 2x Rear lights (4x  Rear lights optional) + 4x Turn signals + 3x Brake lights + 1x Flashing beacon

Transmission

Type Dana Spicer 8000 Powershift Transmission
Shifting Electric
Number of Gears 7F / 2R
Max Speed (Empty) 17.8 mph (28.7 km/h)
Max Speed (Loaded) 17.7 mph (28.5 km/h)
Torque Converter Dana CL8000 with lockup

Komatsu HX45 Underground Truck Transmission Specs

Axles and Brakes

Front Axle Kessler D106 with open differentials
Rear Axle Kessler D106 with open differentials
Turning Angle 43°
Gradeability 20%
Tire Size 29.5R25 lugged tires
Service Brakes Enclosed spring-applied, hydraulically released, liquid cooled multidisk on all four wheel ends
Parking Brake The service brakes also function as emergency and park brakes

Komatsu HX45 Underground Truck Cab

Cab

Cab Air-conditioned cabin with optional trainer seat. 3-point access, an operator seat with optional trainer seat
ROPS ISO 3471 / SAE J1040
FOPS ISO 3449 / SAE J231
Operator Seat 3-point seat belt, low-frequency pneumatic suspension
Steering Control Adjustable steering wheel with orbitrol
Dumpbox Control Proportional joystick

Komatsu HX45 Underground Truck Hydraulic Specs

Hydraulic System

Type Load sensing closed center circuit
Pump Type Variable displacement piston pump with load sensing. (Optional – Electric transfer pump for tank filling)
Box Hoist Cylinder Two cylinders, double acting, single stage
Steering Cylinders Two cylinders, double acting, single stage

Komatsu HX45 Underground Truck Capacity

Service Refill Capacities

Fuel Tank Capacity 198 gal (750 L)
Engine Oil Capacity (w/ filter) 11.1 gal (42 L)
Cooling System Capacity (w/o radiator) 8.7 gal (33 L)
Hydraulic Tank Capacity 86 gal (325 L)
Brake Cooling Tank Capacity 26 gal (100 L)
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