Komatsu PC450-7, Brochure

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PC450-7 PC450LC-7
Operating Ground Operating Ground
Shoes Weight Pressure Weight Pressure
600 mm 43000 kg
81.4 kPa
44000 kg
77.5 kPa
0.83 kgf/cm 2 0.79 kgf/cm 2
23.6" 94,800 lb
11.8 psi
97,000 lb
11.2 psi
700 mm 43420 kg
69.6 kPa
44450 kg
66.7 kPa
0.71 kgf/cm 2 0.68 kgf/cm 2
27.6" 95,720 lb
10.1 psi
97,990 lb
9.67 psi
10 11
H
Y D R A U L I C
E
X C A V A T O R
S
PECIFICATIONS
HYDRAULIC EXCAVATOR
PC450-7
PC450-7
WORKING RANGE
DIMENSIONS
BACKHOE BUCKET, ARM, AND BOOM COMBINATION
Arm length 3380 mm 11'1"
PC450-7 PC450LC-7
A Overall length 12040 mm 39'6" 12040 mm 39'6"
B Length on ground 6540 mm 21'5" 6705 mm 22'0"
C Overall height (to top of boom) 3660 mm 12'0" 3660 mm 12'0"
D Overall width 3340 mm 11'0" 3340 mm 11'0"
E Overall height (to top of cab) 3265 mm 10'9" 3265 mm 10'9"
F Ground clearance, counterweight 1320 mm 4'4" 1320 mm 4'4"
G Ground clearance (minimum) 555 mm 1'10" 550 mm 1'10"
H Tail swing radius 3645 mm 12'0" 3645 mm 12'0"
I Track length on ground 4020 mm 13'2" 4350 mm 14'3"
J Track length 5025 mm 16'6" 5355 mm 17'7"
K Track gauge 2740 mm 9'0" 2740 mm 9'0"
L Width of crawler 3340 mm 11'0" 3340 mm 11'0"
M Shoe width 600 mm 23.6" 600 mm 23.6''
N Grouser height 37 mm 1.5" 37 mm 1.5"
O Machine cab height 2715 mm 8'11" 2715 mm 8'11"
P Machine cab width 3145 mm 10'4" 3145 mm 10'4"
Q Distance, swing center to rear end 3605 mm 11'10" 3605 mm 11'10"
Arm length 3380 mm 11'1"
A Max. digging height 10925 mm 35'10"
B Max. dumping height 7625 mm 25' 0"
C Max. digging depth 7790 mm 25' 7"
D Max. vertical wall digging depth 6600 mm 21'8"
E Max. digging depth of cut for 8' level 7650 mm 25'1"
F Max. digging reach 12005 mm 39'5"
G Max. digging reach at ground level 11800 mm 38'9"
H Min. swing radius 4805 mm 15'9"
SAE Bucket digging force at power max. 243 kN/ 24800 kgf /54,670 lb
rating Arm crowd force at power max 225 kN/ 22900 kgf /50,490 lb
ISO Bucket digging force at power max. 278 kN/ 28300 kgf /62,390 lb
rating Arm crowd force at power max. 233 kN/ 23800 kgf /52,470 lb
General purpose use, material density up to 1.8 ton/m 3 1.52 U.S. ton/yd 3
* Quarry bucket
Bucket Capacity
Width Weight
Number
Arm Length
(heaped)
of Teeth
3.38 m
SAE, PCSA CECE With Side Shrouds Without Side Shrouds With Side Shrouds 11'1"
* 1.90 m 3 2.49 yd 3 1.70 m 3 2.22 yd 3 1625 mm 64.0" — 1966 kg 4,330 lb 5
* 2.10 m 3 2.75 yd 3 1.90 m 3 2.49 yd 3 1745 mm 68.7" — 2035 kg 4,490 lb 5
0 1 2 3 4 5 6 7 8 9 10 11 12 13
(m)
(m)
12
11
10
9
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
H
B
A
D
C E
G.L
G
F
2440 8'
OPTIONAL EQUIPMENT
• Additional fuel filter with water separator
• Air conditioner with defroster, hot & cool box
• Alternator, 50 ampere, 24 v
• Arm,
3380 mm 11'1" arm assembly,
heavy-duty
• Batteries, 140 Ah/2 x 12 V
• Bolt-on top guard (Operator Protective
Guards level 2 (FOG))
• Boom, 7060 mm 23'3", heavy-duty
• Cab accessories
—Rain visor
—Sun visor
• Cab front guard
—Full height guard
—Half height guard
• Cab with 2-piece pull up front window
• Corrosion resistor
• Heater with defroster
• Rearview mirror (LH)
• Seat belt, retractable
• Seat, suspension
• Service valve
• Track frame undercover
• Travel alarm
• Working lights, 2 on cab
• Variable gauge track frame
ENGINE
Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA6D125E-3
Type . . . . . . . . . . . . . . . . . . . . Water-cooled, 4-cycle, direct injection
Aspiration. . . . . . . . . . . . . . . . . . . . . . . . . Turbocharged, aftercooled
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
125 mm 4.92"
Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mm 5.91"
Piston displacement . . . . . . . . . . . . . . . . . . . . . . . . . 11.04 ltr 674 in 3
Flywheel horsepower:
ISO 9249 / SAE J1349. . . . . . . . . . . . . . . . Gross 259 kW 347 HP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Net 246 kW 330 HP
Rated rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1850 rpm
Governor . . . . . . . . . . . . . . . . . . . . . . . . All-speed control, electronic
HYDRAULICS
Type . . HydrauMind (Hydraulic Mechanical Intelligence New Design)
system, closed-center system with load sensing valves and
pressure compensated valves
Number of selectable working modes . . . . . . . . . . . . . . . . . . . . . . . 4
Main pump:
Type . . . . . . . . . . . . . . . . . . . . . Variable displacement piston type
Pumps for . . . . . . . . Boom, arm, bucket, swing, and travel circuits
Maximum flow . . . . . . . . . . . . . . . . .
690 ltr/min 182 U.S. gal/min
Supply for control circuit . . . . . . . . . . . . . . . . . Self-reducing valve
Hydraulic motors:
Travel . . . . . . . . . . . . . . . 2 x axial piston motor with parking brake
Swing . . . . . . . . . . 1 x axial piston motor with swing holding brake
Relief valve setting:
Implement circuits. . . . . . . . . . . . 37.3 MPa 380 kgf/cm 2 5,400 psi
Travel circuit . . . . . . . . . . . . . . . . 37.3 MPa 380 kgf/cm 2 5,400 psi
Swing circuit . . . . . . . . . . . . . . . . 27.9 MPa 285 kgf/cm 2 4,050 psi
Pilot circuit. . . . . . . . . . . . . . . . . . . . . 3.2 MPa 33 kgf/cm 2 470 psi
Hydraulic cylinders:
(Number of cylinders – bore x stroke x rod diameter)
Boom . . . . . 2 – 160 mm x 1570 mm x 110 mm 6.3" x 61.8" x 4.3"
Arm . . . . . . 1 – 185 mm x 1985 mm x 130 mm 7.3" x 78.1" x 5.1"
Bucket: . . . . 1 – 160 mm x 1270 mm x 110 mm 6.3" x 50.0" x 4.3"
OPERATING WEIGHT
(APPROXIMATE)
Operating weight including 7060 mm 23'2" one-piece boom,
3380 mm 11'1" arm, SAE heaped 1.9 m 3 2.49 yd 3 bucket, rated
capacity of lubricants, coolant, full fuel tank, operator, and standard
equipment.
DRIVES AND BRAKES
Steering control . . . . . . . . . . . . . . . . . . . . . . . Two levers with pedals
Drive method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydrostatic
Maximum drawbar pull . . . . . . . . . . . . . 329 kN
33510 kgf 73,880 lb
Gradeability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70%, 35°
Maximum travel speed (Auto-Shift): . . . . . . . . . . . . . . . . . . . . . . . . .
High . . . . . . . . . . . . . . . . . 5.5 km/h 3.4 mph
Mid. . . . . . . . . . . . . . . . . . 4.4 km/h 2.7 mph
Low . . . . . . . . . . . . . . . . . 3.0 km/h 1.9 mph
Service brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic lock
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical disc brake
SWING SYSTEM
Drive method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydrostatic
Swing reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Planetary gear
Swing circle lubrication . . . . . . . . . . . . . . . . . . . . . . . Grease-bathed
Service brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic lock
Holding brake/Swing lock . . . . . . . . . . . . . . . . Mechanical disc brake
Swing speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.0 rpm
UNDERCARRIAGE
Center frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-frame
Track frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Box-section
Seal of track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sealed track
Track adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic
Number of shoes (each side):
PC450-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
PC450LC-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Number of carrier rollers . . . . . . . . . . . . . . . . . . . . . . . . . 2 each side
Number of track rollers (each side):
PC450-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PC450LC-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
COOLANT AND LUBRICANT
CAPACITY
(REFILLING)
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 ltr 172 U.S. gal
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.2 ltr 9.0 U.S. gal
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38.0 ltr 10.0 U.S. gal
Final drive, each side . . . . . . . . . . . . . . . . . . . . . 12.0 ltr 3.2 U.S. gal
Swing drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.2 ltr 4.3 U.S. gal
Hydraulic tank . . . . . . . . . . . . . . . . . . . . . . . . . . 248 ltr 65.5 U.S. gal
STANDARD EQUIPMENT
• Alternator, 35 Ampere, 24V
• Auto-Decel
• Automatic engine warm-up system
• Automatic de-airation system for fuel line
• Batteries, 110 Ah/2 x 12V
• Boom holding valve
• Cab capable FOG with optional bolt-on
top guard
• Counterweight, 9220kg 20,330lb
• Dry type air cleaner, double element
• Electric horn
• Engine, Komatsu SAA6D125E
• Engine overheat prevention system
• Fan guard structure
• Hydraulic track adjusters (each side)
• Long lubricating interval bushings for
work equipment
• Monitor panel, color multi-function
• Power maximizing system
• PPC hydraulic control system
• Radiator & oil cooler dust proof net
• Rear view mirror, R.H.
• Starting motor, 7.5 kW
• Suction fan
• Track guiding guard, full guard
• Track roller
—PC450-7, 7 each side
—PC450LC-7, 8 each side
• Track shoe
—PC450-7, 600 mm 23.6" triple grouser
—PC450LC-7, 600 mm 23.6" triple grouser
• Two settings for boom
• Working light, 2 (boom and RH)
• Working mode selection system
A
H,Q
D,L
K
M
G
E
I
J
N
F
O
B
C
P