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KOMATSU - CRAWLER EXCAVATORS



KOMATSU PC300LC-7

Technical Data and Photos

Manufacturer: KOMATSU

Type: crawler hydraulic excavator

Model: PC300LC-7

OPERATING SPECIFICATIONS:
Operating weight: 31 520 32 280 kg (69,490 71,160 lb)
Bucket capacity (heaped): 0.52 m3 (0.68 yd3) - 1.80 m3 (2.35 yd3)
Rock bucket capacity (heaped): 1.40 m3 (1.83 yd3)
Maximum travel speed: 5.5 km/h (3.4 mph)
Standard shoe (width): 700 mm (27.6")


ENGINE:
Model: Komatsu SAA6D114E
Type: water-cooled, 4-cycle, direct injection, diesel
Aspiration: turbocharged, aftercooled
Power - SAE J1349: 180 kW (242 HP) at 1900 rpm
Power - DIN6270: 180 kW (245 PS) at 1900 rpm
Number of cylinders: 6
Bore: 114 mm (4.49 in)
Stroke: 135 mm (5.31 in)
Displacement: 8.27 ltr (505 in3)
Governor: all-speed control, mechanical
Starting motor: 24 V/7.5 kW x 1
Batteries: 126 Ah/12V x 2
Alternator: 24 V/35 A


HYDRAULIC SYSTEM:
Type: HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load sensing valves and pressure compensated valves
Number of selectable working modes: 3
Main pump:
Type: variable displacement piston type
Pumps for: boom, arm, bucket, swing, and travel circuits
Maximum flow: 535 ltr/min (141 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/cm2 5,400 psi
Travel circuit: 37.3 MPa 380 kgf/cm2 5,400 psi
Swing circuit: 27.9 MPa 285 kgf/cm2 4,050 psi
Pilot circuit: 3.2 MPa 33 kgf/cm2 470 psi

Hydraulic cylinders:

Boom:
Number of cylinders: 2
Bore: 140 mm (5.5 in)
Stroke: 1480 mm (58.3 in)
Rod diameter: 100 mm (3.9 in)

Arm:
Number of cylinders: 1
Bore: 160 mm (6.3 in)
Stroke: 1825 mm (71.9 in)
Rod diameter: 110 mm (4.3 in)

Bucket:
For 3.19 m 10'5" and 4.02 m 13'2" arm
Number of cylinders: 1
Bore: 140 mm (5.5 in)
Stroke: 1285 mm (50.6 in)
Rod diameter: 100 mm (3.9 in)

Bucket:
For 2.22 m 7'3" and 2.55 m 8'4" arm
Number of cylinders: 1
Bore: 150 mm (5.9 in)
Stroke: 1285 mm (50.6 in)
Rod diameter: 110 mm (4.3 in)


SERVICE REFILL CAPACITIES:
Fuel tank: 605 ltr (160 U.S. gal)
Coolant: 32.0 ltr (8.5 U.S. gal)
Engine: 35.0 ltr 9.2 (U.S. gal)
Final drive: each side: 8.5 ltr (2.2 U.S. gal)
Swing drive: 13.4 ltr (3.5 U.S. gal)
Hydraulic tank: 188 ltr 49.7 (U.S. gal)


OPERATING WEIGHT:
Operating weight including 6470 mm (21'3") one-piece boom, 3185 mm (10'5") arm, SAE heaped 1.4 m3 (1.83 yd3) bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.

Shoes: 600 mm (23.6 in)
Operating weight: 31 520 kg (69,490 lb)
Ground pressure: 58.8 kPa - 0.60 kgf/cm2 - 8.53 psi

Shoes: 700 mm (27.6 in)
Operating weight: 31 900 kg (70,330 lb)
Ground pressure: 50.7 kPa - 0.52 kgf/cm2 - 7.36 psi

Shoes: 800 mm (31.5 in)
Operating weight: 32 280 kg (71,160 lb)
Ground pressure: 45.1 kPa - 0.46 kgf/cm2 - 6.54 psi


UNDERCARRIAGE:
Center frame: x-frame
Track frame: box-section
Seal of track: sealed track
Track adjuster: hydraulic
Number of shoes (each side): 48
Number of carrier rollers (each side): 2
Number of track rollers (each side): 8


DIMENSIONS with shoe width 700 mm (27.6"):
Shipping length: 11 140 mm (36'7") - 11 290 mm (37'1")
Shipping height (to top of boom): 3280 mm (10'9") - 3 760 mm (12'4")
Overall width: 3 290 mm (10'10")
Width of crawler: 3 290 mm (10'10")
Overall height (to top of cab): 3 130 mm (10'3")
Ground clearance, counterweight: 1 185 mm (3'11")
Ground clearance (minimum): 500 mm (1'8")
Tail swing radius: 3 450 mm (11'4")
Track length on ground: 4 030 mm (13'3")
Track length: 4 955 mm (16'3")
Track gauge: 2 590 mm (8'6")
Grouserr height: 36 mm (1.4")


WORKING RANGE:
Arm: 2 220 mm (7'3") - 4 020 mm (13'2")
Maximum digging height: 9 580 mm (31'5") - 10 550 mm (34'7")
Maximum dumping height: 6 595 mm (21'8") - 7 490 mm (24'7")
Maximum digging depth: 5 120 mm (16'10") - 7 280 mm (23'11")
Maximum digging reach: 10 155 mm (33'4") - 11 900 mm (39'1")
Maximum digging reach at ground level: 9 950 mm (32'8") - 11 730 mm (38'6")
Minimum swing radius: 4 310 mm (14'2") - 4 400 mm (14'5")


KOMATSU PC300LC-7 crawler hydraulic excavator
KOMATSU PC300LC-7 crawler hydraulic excavator.
Date of the photo: 10 June 2017






KOMATSU - CRAWLER EXCAVATORS


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