Komatsu PC7000-6 Crawler Excavator

Komatsu PC7000-6 Crawler Excavator

Operating weight 700000kg
Engine power
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Quality in Manufacturing

Commitment to „Quality and Reliability“

• Quality management ISO 9001 
• Environmental management ISO 14001  
• Occupational health and safety management system BS OHSAS 18001:2007 
• High consistent quality through continuous investment in personnel, design and manufacturing systems and processes


Powerful Diesel Engine

Two Komatsu SSDA16V159E-2 Tier 2 engines

• Rated (each) 1250 kW (1675 HP) at 1800 rpm

• Electronic engine management

• Low engine emission levels Tier 2 certificated

•Time saving Engine Oil Management System; Centinel, Engine Reserve Oil Supply and Eliminator Oil Filter System


Electric Drive, optional available

Two squirrel cage induction motors

• Output: 2 x 1200 kW
• Frequencies: 50 Hz or 60 Hz
• Rated voltage: 6,0 kV up to 7,2 kV


Reliability and Durability

Long life and low operating cost by design 

• Robust structural design developed from field experience and finite element analysis


Undercarriage

• Large diameter rollers, idlers and sprockets
• Large surface area and extensive precision hardening of all engaging components reduce rack wear
• Hardened track link pin bores 


Access and Egress

• 45° primary access and egress stairways
• 45° access swing stairway
• 3 emergency egresses
     - cab and machinery house (two pieces flip down solid anti slip steel ladder)
     - machinery house escape
• Illuminated accesses and egresses


Productivity

Designed for more tons per hour 

• Powerful digging forces
• Ease of bucket filling
• Proven bucket design
• All cylinders mounted in the shadow of the attachment for protection
• Various buckets and wear packages to suit all material densities and properties


Advanced Hydraulics

Extended reliability and precise control

• Comprehensive monitored filtration
• Simple open circuit hydraulic system with high efficiency swing out oil coolers


Large Comfortable Cab

Comfortable for the whole day

• Komatsu low noise cab on multiple viscous mounts for reduced noise and vibration
• Large volume cab with full height front window
• Comprehensive climate control with pressurised filtered air ventilation and air conditioning
• High specification multi-adjustable air suspension seat plus trainer seat
• Well elevated operator position giving good all round view
• Large wash wiper covers windshield area for excellent visibility


Easy Maintenance

Simple, common-sense design provides easy access to all major components

• Generous access to all major service points from machinery house floor level
• Enclosed, walk-in machinery house with partition wall separating engine from pump area
• Automatic central lubrication
• KOMTRAX Plus electronic monitoring system providing real time information about the operating status of the machine
• Ground-level access to hydraulically powered swing down service arm with Wiggins connections
• Acknowledges EMESRT design philosophies


Diesel Drive

Model
2 x Komatsu SSDA16V159E-2
Type
4-cycle, water-cooled, direct injection
Aspiration
Turbocharged and aftercooled
Number of cylinders
16
Rated power @ 1800 rpm
(SAE 1995/J1349)
2 x 1250 kW2 x 1675 HP
Governor All-speed, electronic

The integrated engine oil and filter system combining the oil stabilising 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.

Electric System (Diesel Version)

System
24 V
Batteries (series/parallel)
8 x 12 V
Alternator
2 x 140 A
Standard working lights
16 LED lights
Standard service lights
throughout the platform incl. emergency egresses and stairways

Undercarriage

Undercarriage consists of one centre 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
48 each side
Number of top rollers
3 each side
Number of bottom rollers
7 each side

Travel and Break System

Travel control
2 foot pedals
Gradeability
Up to 50%
Travel speed (maximum)2.1 km/h1.4 mph
Service brake
Hydraulic brake
Parking brake
Wet, multiple-disc

Swing System

Hydraulic motors and drives
3
Swing brake, service
Hydraulic brake
Swing brake, parking
Wet, multiple-disc
Swing ring teeth
External
Swing speed (optimized to 90° swing)
3.1 rpm

Electric Drive

Type2 x Squirrel cage induction motor
Power output2 x 1200 kW
Voltage6000 - 7200 V*
Amperage (approximate)2 x 128 A - 2 x 107 A
Frequency standard60 Hz @ 1800 rpm
Frequency option50 Hz @ 1500 rpm

* Other voltages available on request

Electric System (Electric Version)

System
24 V
Batteries (series/parallel)
4 x 12 V
Standard working lights
16 LED lights
Standard service lights
throughout the platform incl. emergency egresses and stairways

Hydraulic System

The power train consists of two main drives. Each of the two gearboxes drives three identical pumps which draw hydraulic oil from an unpressurised hydraulic tank. Open circuit hydraulics provide maximum cooling and filtering efficiency.

Rated flow (total output)6.210 ltr/min
1,640 gpm
Relief valve setting310 bar4,495 psi
Swing flow rate1.035 ltr/min273 gpm
High pressure in line filters
one per pump located at the valve blocks

200 microns
Full flow return line filters
at head of hydraulic tank

10 microns
Case drain/by-pass return line filters
3 microns

The four-circuit system features a load-limiting governor with oil delivery summation to the working circuits and incorporates pressure cut-off control. Hydropilot prioritises hydraulic flow giving smooth hydraulic response, simple hydraulic system layout, and a reduced number of components. The hydraulic system includes large swing-out vertical airto- oil hydraulic coolers with temperature-regulated hydraulically driven fans.

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 lubrication circuits and open gear grease circuit are supplied by identical pump assemblies from refillable containers which have a capacity of 1x 600 and 1x 300 litres (total 238 gal). Replenishment of the containers is through the Wiggins connections on the service arm.

Service Capacities

Hydraulic oil tank4.750 ltr1,255 U.S. gal
Hydraulic system9.500 ltr2,510 U.S. gal
Fuel13.0333,443 U.S. gal
Engine coolant2 x 440 ltr2 x 116 U.S. gal
Engine oil2 x 236 ltr2 x 62 U.S. gal
Reserve engine oil make up tank2 x 665 ltr2 x 176 U.S. gal

Operator Cab

The large and comfortable cab is mounted on 18 viscous damping pads and sound insulated. The cab has automatic climate control and is pressurised. 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 seat belt. Low-effort joystick controls are electrohydraulic 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 with AUX in 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 left hand window is an emergency exit. All windows are tinted parsol green. The front window is a 19mm thick impact resistant window. A walkway is mounted in front of cabin.

KOMTRAX Plus Health Monitoring System

KOMTRAX Plus is designed for Komatsu mining equipment to provide real time information about the operating status of the machine via a coloured display. The integrated digital storage provides a full event history and trend data, which can be downloaded by laptop. Optionally available are W-LAN or Orbcomm  satellite transmission (check for availability in your territory).

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