Komatsu Excavators PC8000-6

PC8000-6 Mining Shovel

Two 2010 hp diesel engines or, if you'd rather use electricity, two 1450 kW electric motors provide power for the massive hydraulic PC8000-6. In the shovel configuration, all hydraulic cylinders are mounted under the shovel attachment for protection from falling material. Whether in shovel or backhoe configuration, the PC8000-6 is a high production truck loading system that will out cycle rope shovels and load trucks from 240 ton and higher.

Diesel Drive
The integrated engine oil and filter system combining the oil stabilizing systems, Reserve and Centinel, with Eliminator oil filter extends the oil change interval up to 4,000 hours based on oil analysis. The high capacity Mesabi engine radiators are cooled by a hydraulically driven fan for superior cooling efficiency.
Model		2 x Komatsu SDA16V160E-2 Tier 2
Type		Water-cooled, 4-cycle, direct injection
Aspiration		Turbocharged and aftercooled
Number of cylinders		16
Rated power @ 1800 rpm (SAE 1995/J1349)	2 x 2,100 HP	2 x 1500 kW
Governor		All-speed, electronic

Hydraulic System
The power train consists of two main drives. Each of the two gearboxes drives four identical pumps which draw hydraulic oil from an unpressurized hydraulic tank. Open circuit hydraulics provide maximum cooling and filtering efficiency.The four-circuit system features a load-limiting governor with oil delivery summation to the working circuits and incorporates pressure cut-off control. Hydropilot prioritizes hydraulic flow giving smooth hydraulic response, simple hydraulic system layout, and a reduced number of components. The hydraulic system includes large swing-out vertical air-to-oil hydraulic coolers with temperature regulated hydraulically driven fans.
Rated flow (total output)	2,190 gpm	8280 ltr/min
Relief valve setting	4,495 psi	310 bar
Swing flow rate	547 gpm	2070 ltr/min
High pressure in line filters(one per pump located at the valve blocks)		200 microns
Full flow return line filters (7 elements)at head of hydraulic tank		10 microns
Case drain/by-pass return line filters		3 microns

Travel and Brake System
Travel control		2 foot pedals
Gradeability		Up to 50%
Maximum travel speed	1.5 mph	2.4 km/h
Service brake		Hydraulic
Parking brake		Wet multiple-disc brake

Swing System
Hydraulic motors and drives		3
Swing brake, service		Hydraulic brake
Swing brake, parking		Wet multiple-disc
Swing ring teeth		External
Swing speed (maximum)		2.7 rpm

Undercarriage
Undercarriage consists of one center carbody and two track frames, each side attached by high torque bolts.
Center frame		H-type
Track frame		Steel box-section

Crawler Assembly
Track adjustment		Automatic hydraulic type
Number of track shoes (each side)		49
Number of top rollers (each side)		3
Number of bottom rollers (each side)		8

Electrical System (Diesel Version)
System		24 V
Batteries (series/parallel)		8 x 12 V
Alternator		2 x 100 A
Standard working lights		14 Xenon Lights
Standard service lights		throughout platform

Electrical System (Electric Version)
System		24 V
Batteries (series/parallel)		4 x 12 V
Standard working lights		14 Xenon lights
Standard service lights		throughout platform

Electric Drive
Type		2 x Squirrel-cage induction motors
Power output		2 x 1450 kW
Voltage		6,000 - 7,200 V*
Amperage (approximate)		2 x 155 A - 2 x 128 A
Frequency standard		60 Hz @ 1800 rpm
Frequency option		50 Hz @ 1500 rpm
*Other voltages available on request.

Automatic Centralized Lubrication
Three hydraulically powered Lincoln single line automatic lubrication systems are provided as standard, complete with time and volume variable controls. The two central lubrications and open gear lubricant are supplied by identical pump assemblies from refillable containers which have a capacity of (3 x 300 liters) 3 x 80 U.S. gal. Replenishment of the containers is through the Wiggins connections on the service arm.

Service Capacities
Hydraulic oil tank	2,205 U.S. gal	8350 ltr
Hydraulic system	3,040 U.S. gal	11500 ltr
Fuel	3,672 U.S. gal	13900 ltr
Engine coolant	2 x 125 U.S. gal	2 x 475 ltr
Engine oil	2 x 77 U.S. gal	.2 x 290 ltr
Reserve engine oil make up tank	2 x 279 U.S. gal	2 x 1056 ltr

Cab
The large and comfortable cab is mounted on 18 viscous damping pads and sound insulated. The cab has an automatic climate control and is pressurized. The operator's seat is air suspended, electrically heated and has a lap seat belt and offers multiple adjustments. The trainer seat is also equipped with a lap seat belt. Low-effort joystick controls are electric over hydraulic with foot controls for front shovel clam, crawler and swing brake. Full instrumentation, KOMTRAX Plus and an AM/FM radio with MP3 ready CD player is fitted. The windshield wash wiper has two speeds and intermittent operation. Amenities include a refrigerator and storage cabinets. Powered and heated mirrors are adjusted from inside the cab. External metal sun blinds on the cab side window and internal roller blinds on all windows are standard. The right hand window is an emergency exit. All windows are tinted parsol green.
Cab engineering standards are:
ISO 3449 Falling Objects Protection Structure (FOPS Level II)
ISO 6396 Noise in operator's cab is 78 dB(A)
ISO 2631-1 Whole body vibration and shock below 0.5 m/s²
ISO 5349-1 Hand-lever vibration lower 2.5 m/s²	34,120 Btu/hr	10 kW
ISO 10263-4 Heating and air conditioning second heater and air conditioner as option	34,120 Btu/hr	10 kW

Vehicle Monitoring System
KOMTRAX Plus is designed for Komatsu mining equipment to provide real time information about the operating status of the machine via a colored display. The integrated digital storage provides a full event history and trend data, which can be downloaded by laptop and satellite modem, optional W-LAN.