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KOMATSU - CRAWLER EXCAVATORS



KOMATSU PC400LC-7

Technical Data and Photos

Manufacturer: KOMATSU

Type: crawler hydraulic excavator

Model: PC400LC-7

OPERATING SPECIFICATIONS:
Operating weight: 42 400 43 300 kg (93,480 95,460 lb)
Bucket capacity SAE, PCSA (heaped): 1.3 m3 (1.70 yd3) - 2.2 m3 (2.88 yd3)
Maximum travel speed: 5.5 km/h (3.4 mph)
Standard shoe (width): 700 mm (27.6")


ENGINE:
Model: Komatsu SAA6D125E-3
Type: water-cooled, 4-cycle, direct injection, diesel
Aspiration: turbocharged, aftercooled
Gross power - ISO 9249 / SAE J1349: 259 kW (347 HP) at 1850 rpm
Net power - ISO 9249 / SAE J1349: 246 kW (330 PS) at 1850 rpm
Number of cylinders: 6
Bore: 125 mm (4.92 in)
Stroke: 150 mm (5.91 in)
Displacement: 11.04 ltr (674 in3)
Governor: all-speed control, mechanical
Starting motor: 24 V/7.5 kW
Batteries: 110 Ah/12V x 2
Alternator: 35 A, 24 V (Optional 50 A, 24 V)


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: 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/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: 160 mm (6.3 in)
Stroke: 1 570 mm (61.8 in)
Rod diameter: 110 mm (4.3 in)

Arm: except 2.4 m 7'10"
Number of cylinders: 1
Bore: 185 mm (7.3 in)
Stroke: 1 820 mm (71.7 in)
Rod diameter: 120 mm (4.7 in)

Arm: for 2.4 m 7'10"
Number of cylinders: 1
Bore: 185 mm (7.3 in)
Stroke: 1 590 mm (62.6 in)
Rod diameter: 120 mm (4.7 in)

Bucket:
Number of cylinders: 1
Bore: 160 mm (6.3 in)
Stroke: 1270 mm (50 in)
Rod diameter: 110 mm (4.3 in)


SERVICE REFILL CAPACITIES:
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)


OPERATING WEIGHT:
Operating weight including 7060 mm (23'2") one-piece boom, 3380 mm 11'1" arm, SAE heaped 1.9 m3 (2.49 yd3) bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.

Shoes: 600 mm (23.6 in)
Operating weight: 42 400 kg (93,480 lb)
Ground pressure: 74.5 kPa - 0.76 kgf/cm2 - 10.8 psi

Shoes: 700 mm (27.6 in)
Operating weight: 42 850 kg (94,470 lb)
Ground pressure: 64.7 kPa - 0.66 kgf/cm2 - 9.39 psi

Shoes: 800 mm (31.5 in)
Operating weight: 43 300 kg (95,460 lb)
Ground pressure: 56.9 kPa - 0.58 kgf/cm2 - 8.25 psi


UNDERCARRIAGE:
Center frame: x-frame
Track frame: box-section
Seal of track: sealed track
Track adjuster: hydraulic
Number of shoes (each side): 49
Number of carrier rollers (each side): 2
Number of track rollers (each side): 8


DIMENSIONS with shoe width 700 mm (27.6"):
Shipping length: 11 905 mm (39'1") - 11 995 mm (39'4")
Shipping height (to top of boom): 3 635 mm (11'11") - 3 885 mm (12'9")
Overall width: 3 440 mm (11'3")
Width of crawler: 3 440 mm (11'3")
Overall height (to top of cab): 3 265 mm (10'9")
Ground clearance, counterweight: 1 320 mm (4'4")
Ground clearance (minimum): 550 mm (1'10")
Tail swing radius: 3 645 mm (12'0")
Track length on ground: 4 350 mm (14'3")
Track length: 5 355 mm (17'7")
Track gauge: 2 740 mm (9'0")
Grouserr height: 37 mm (1.5")


WORKING RANGE:
Arm: 2 400 mm (7'10") - 4 000 mm (13'1")
Maximum digging height: 10 285 mm (33'9") - 11 025 mm (36'2")
Maximum dumping height: 7070 mm (23'2") - 7 715 mm (25'4")
Maximum digging depth: 6 845 mm (22'6") - 8 445 mm (27'8")
Maximum digging reach: 11 080 mm (36'4") - 12 565 mm (41'3")
Maximum digging reach at ground level: 10 855 mm (35'7") - 12 365 mm (40'7")
Minimum swing radius: 4 735 mm (15'6") - 4 835 mm (15'10")


KOMATSU PC400LC-7 crawler digger
KOMATSU PC400LC-7 crawler digger.
Excavator, Komatsu PC 400 LC - 7. Folsom, California, USA.
Date of creation of the photo: 9 August 2007
Author of the photo: Photo456598
License : (CC BY-ND 2.0)


KOMATSU PC400LC-7 crawler digger
KOMATSU PC400LC-7 crawler digger.
Date of creation of the photo: 30 December 2015
Author of the photo: Arvell Dorsey Jr.
License : (CC BY 2.0)






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