Komatsu HM250-2, Brochure

Page: 6 / 6

11 10
DIMENSIONS
10060 mm 33'0"
443 mm 1'5"
1525 mm
5'0"
4975 mm 16'4"
70
°
4010 mm
13'2"
2280 mm 7'6"
3500 mm
11'6"
2900 mm 9'6"
24
°
1710 mm
5'7"
7960 mm
26'1"
45
°
2725 mm 8'11" 4100 mm 13'5"
6185 mm
20'4"
640 mm
2'1" 500 mm 1'8" 1200 mm 3'11"
2670 mm
8'9"
2900 mm
9'6"
2685 mm
8'10"
1600 mm 5'3"
F1
F2
F3
F4
F5
F6
70 60 50 40 30 20 10 0
0
3
5
6
7
8
9
10
20
30
40
50
2
1
4
35.0
40.0
45.0
30.0
25.0
20.0
15.0
14.0
13.0
12.0
11.0
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
100
60
80
40
30
20
10
5
4
3
2
0
RIMPULL
0 10 15 20 25 30 35 40
TRAVEL SPEED
MPH
km/h
LOADED EMPTY
GROSS WEIGHT
x10
3
lb
x10
3
kg
x10
3 lb x10 3
kg
5
TO
TA
L
RESIST
ANCE (GRADE + R
OLLING) (%)
20 25 35 45 50 30 40 55
50 60 70 80 90 110 120
0 10
0 10 20 30 40 50 60
20 30 40 50 60 70 80 90 100 km/h
MPH
TRAVEL SPEED
-10
-15
-20
-25
-30
-5
-35
-40
TOTAL RESISTANCE (GRADE + ROLLING) (%)
0
0 50 100 150 200
10 20 30 40 50 60 70 80 90 100
-45 -50
GROSS WEIGHT
x10
3 lb
x10 3 kg
LOADED EMPTY
F1
F2
F3
F4
F5
F6
GRADE DISTANCE : CONTINUOUS DESCENT
TRAVEL PERFORMANCE
BRAKE PERFORMANCE
HM250-2
ARTICULATED DUMP TRUCK
HM250-2
A
R T I C U L A T E D
D
U M P
T
R U C K
S
PECIFICATIONS
AXLES
Full time all wheel drive with limited slip differential in all axles.
Final drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Planetary gear
Ratios:
Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.154
Planetary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.667
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-disk 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 . . . . . . . . . . . . . . . . . . 57.6 km/h 35.8 mph
ENGINE
Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA6D125E-5
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water-cooled, 4-cycle
Aspiration . . . . . . . . . . . . . Turbo-charged, after-cooled, cooled EGR
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
125 mm 4.92"
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mm 5.91"
Piston displacement. . . . . . . . . . . . . . . . . . . . . . . . 11.04 ltr. 674 in 3
Horsepower
SAE J1995 . . . . . . . . . . . . . . . . . . . . . . . . Gross 232 kW 311 HP
ISO 9249 / SAE J1349 . . . . . . . . . . . . . . . . . Net 222 kW 298 HP
Rated rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 rpm
Fan drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical
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
SUSPENSION SYSTEM
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydro-pneumatic suspension
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Combined hydro-pneumatic
and rubber suspension system
MAIN FRAME
Type . . . . . . . . . . . . . . . . . . . . . . . . . Articulated type, box-sectioned
construction on front and rear
Connected by strong torque tubes
STEERING SYSTEM
Type . . . . . . . . . . . . . . . Articulated type, fully hydraulic power steering
with two double-acting cylinders
Supplementary steering . . . . . . . . . . . . . . . . . . Automatically actuated,
electrically powered
Minimum turning radius, wall to wall . . . . . . . . . . . . . . . . 7.96 m 26'1"
Articulation angle . . . . . . . . . . . . . . . . . . . . . . . . . . . 45° each direction
BRAKES
Service brakes . . . . . . . . . . . . . . . . . . Full-hydraulic control, oil-cooled
multiple-disc type on front and center axles
Parking brake . . . . . . . . . . . . . . . . . . . Spring applied, caliper disc type
Retarder. . . . . . . . . . . . . . Front and center axle brakes act as retarder
WEIGHT (APPROXIMATE)
Empty weight. . . . . . . . . . . . . . . . . . . . . . . . . . 23,600 kg 52,030 lb
Gross vehicle weight . . . . . . . . . . . . . . . . . . . . 47,680 kg 105,120 lb
Weight distribution:
Empty: Front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57.6%
Center axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.8%
Rear axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19.6%
Loaded: Front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.3%
Center axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.4%
Rear axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.3%
BODY
Capacity:
Struck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 m 3 14.5 yd 3
Heaped (2:1, SAE) . . . . . . . . . . . . . . . . . . . . . . . 14.7 m 3 19.2 yd 3
Payload . . . . . . . . . . . . . . . . . . . . . 24.0 metric tons 26.5 U.S. tons
Material . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 kg/mm 2 184,925 psi
high tensile strength steel
Material thickness:
Bottom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 mm 0.55"
Front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 mm 0.31"
Sides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 mm 0.47"
Target area
(inside length x width) . . . . . . . 4975 mm x 2685 mm 16'4" x 8'10"
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exhaust heating (option)
HYDRAULIC SYSTEM
Hoist cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . Twin, 1-stage type
Relief pressure . . . . . . . . . . . . . . . . .
20.6 MPa 210 kg/cm 2 2,990 psi
Hoist time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 sec
CAB
Dimensions comply with ISO 3471 ROPS (Roll-Over Protective
Structure) standards
TIRES
Standard tire. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.5 R25
SERVICE REFILL CAPACITIES
Fuel tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . 384 ltr. 101.5 U.S. Gal
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 ltr. 9.8 U.S. Gal
Torque converter, transmission and
retarder cooling . . . . . . . . . . . . . . . . . . . . . 77.5 ltr. 20.5 U.S. Gal
Differentials (total) . . . . . . . . . . . . . . . . . . . . . 63.5 ltr. 16.8 U.S. Gal
Final drives (total) . . . . . . . . . . . . . . . . . . . . . . . . 24 ltr. 6.3 U.S. Gal
Hydraulic system. . . . . . . . . . . . . . . . . . . . . . . 120 ltr. 31.7 U.S. Gal
Suspension (total) . . . . . . . . . . . . . . . . . . . . . . . 8.4 ltr. 2.2 U.S. Gal