Komatsu PC450-8R, Брошюра

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Arm Length 3380 mm 11'1"
Model PC450-8R PC450LC-8R
A Overall length 12040 mm 39'6" 12040 mm 39'6"
B Length on ground 6560 mm 21'6" 6725 mm 22'1"
C Overall height (to top of boom)* 3660 mm 12'0" 3660 mm 12'0"
D Overall width 3430 mm 11'3" 3430 mm 11'3"
E Overall height (to top of cab)* 3285 mm 10'9" 3285 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 5055 mm 16'7" 5385 mm 17'8"
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 2920 mm 9'7" 2920 mm 9'7"
P Machine cab width 3165 mm 10'5" 3165 mm 10'5"
Q Distance, swing center to rear end 3605 mm 11'10" 3605 mm 11'10"
WORKING RANGE
DIMENSIONS
BACKHOE BUCKET, ARM, AND BOOM COMBINATION
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’
A
H,Q
D,L
K
M
G
E*
I
J
N
F
O
B
C*
P
13
* : Including grouser height
ENGINE
Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA6D125E-5
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
Horsepower:
SAE J1995 . . . . . . . . . . . . . . . . . . . . . . . . Gross 270 kW 362 HP
ISO 9249 / SAE J1349 . . . . . . . . . . . . . . . . . Net 257 kW 345 HP
Rated rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1900 rpm
Fan drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical
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 motors 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" x 4.3"
DRIVES AND BRAKES
Steering control . . . . . . . . . . . . . . . . . . . . . . . Two levers with pedals
Drive method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydrostatic
Maximum drawbar pull. . . . . . . . . . . . . .
330 kN 33700 kgf 73,880 lb
Gradeability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70%, 35°
Maximum travel speed: High . . . . . . . . . . . . . . . . .
5.5 km/h 3.4 mph
(Auto-Shift) Mid. . . . . . . . . . . . . . . . . . 4.0 km/h 2.5 mph
(Auto-Shift) 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1 rpm
UNDERCARRIAGE
Center frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-frame
Track frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Box-section
Seal of track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sealed track
Track adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic
Number of shoes (each side):
PC450-8R. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
PC450LC-8R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Number of carrier rollers . . . . . . . . . . . . . . . . . . . . . . . . . 2 each side
Number of track rollers (each side):
PC450-8R. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PC450LC-8R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
COOLANT AND LUBRICANT
CAPACITY
(REFILLING)
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 ltr 172 U.S. gal
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36.0 ltr 9.5 U.S. gal
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37.0 ltr 9.8 U.S. gal
Final drive, each side . . . . . . . . . . . . . . . . . . . . . 10.5 ltr 2.8 U.S. gal
Swing drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.0 ltr 5.3 U.S. gal
Hydraulic tank . . . . . . . . . . . . . . . . . . . . . . . . . . 248 ltr 65.5 U.S. gal
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.
PC450-8R PC450LC-8R
Operating Ground Operating Ground
Shoes Weight Pressure Weight Pressure
600 mm 43320 kg
80.7 kPa
44320 kg
76.8 kPa
0.82 kgf/cm 2 0.78 kgf/cm 2
23.6" 95,500 lb
11.7 psi
97,710 lb
11.1 psi
700 mm 43740 kg
69.9 kPa
44770 kg
66.5 kPa
0.71 kgf/cm 2 0.68 kgf/cm 2
27.6" 96,430 lb
10.1 psi
98,700 lb
9.64 psi
S
PECIFICATIONS
12
H
Y D R A U L I C
E
X C A V A T O R
PC450
-8R
PC450
-8R
0
HYDRAULIC EXCAVATOR