Komatsu PC4000-6

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Features

Quality
■ Quality management ISO 9001
■ Environmental Management ISO 14001
■ High consistent quality through continuous investment in personnel, design and manufacturing systems and processes

Reliability and Durability
■ Robust structural design developed from field experience and finite element analysis

Undercarriage
■ Big diameter rollers, idlers and sprockets
■ Large surface area and extensive precision hardening reduce track wear
■ Hardened track link pin bores

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

Advanced Hydraulics
■ Precise control
■ Comprehensive monitored filtration
■ Simple open circuit hydraulic system with high efficiency swing out oil coolers

Large Comfortable Cab
■ Gives full shift comfort
■ Komatsu low noise cab on multiple viscous mounts for reduced noise and vibration
■ Large volume cab with large scale front window
■ Comprehensive climate control with pressurized filtered air ventilation and air conditioning
■ High specification multi-adjustable air suspension seat
■ Well elevated operator position giving good all round view

Powerful Diesel Engine
■ Komatsu SDA16V160E-2 engine Tier 2 certified, Rated 1400 kW / 1875 HP at 1800 rpm
■ Electronic engine management
■ Low engine emission levels meet EPA regulations
■ Time saving Engine Oil Management System; Centinel, Engine Reserve Oil Supply and Eliminator Oil Filter system

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

Specifications

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 4000 hours based on oil analysis. The high capacity Mesabi engine radiators are cooled by a hydraulically driven fan for superior cooling efficiency.    
     
Model   Komatsu SDA16V160E-2 Tier 2
Type   Water-cooled, 4-cycle, direct injection
Aspiration   Turbocharged and aftercooled
Number of cylinders   16
Rated power (SAE 1995/J1349) @ 1800 rpm 1,875 HP 1400 kW
Governor   All-speed, electronic
     
Hydraulic System    
The power train consists of one main drive. One gearbox 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) 1,096 U.S. gpm 4140 ltr/min
Relief valve setting 4,495 psi 310 bar
Swing flow rate 420 U.S. gpm 1590 ltr/min
High pressure in line filters    
one per pump located at the valve blocks   200 microns
Full flow return line filters (5 double)    
at head of hydraulic tank   10 microns
Case drain return line filters (one double element)   3 microns
     
Travel and Brake System    
Travel control   2 foot pedals
Gradeability   Up to 50%
Travel speed (maximum) 1.3 mph 2.1 km/h
Service brake   Hydraulic brake
Parking brake   Wet multiple-disc brake
     
Swing System    
Hydraulic motors and drives   2
Swing brake, service   Hydraulic
Swing brake, parking   Wet multiple-disc
Swing ring teeth   External
Swing speed (maximum)   4.0 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)   300%
Number of bottom rollers (each side)   700%
     
Electrical System (Diesel Version)    
System   24 V
Batteries (series/parallel)   2 x 3 x 12 V
Alternator   260 A
Standard working lights   14 Xenon lights
Standard service lights   throughout platform
     
Electrical System (Electric Version)    
System   24 V
Batteries (series/parallel)   2 x 2 x 12 V
Standard working lights   14 Xenon lights
Standard service lights   throughout platform
     
Electric Drive    
Type   Squirrel-cage induction motor
Power output   1350 kW
Voltage   6,000 – 7,200 V*
Amperage (approximate)   145 A – 120 A
Start-up   Soft start
Frequency standard   60 Hz @ 1800 rpm
Frequency option   50 Hz @ 1500 rpm
*Other voltages available on request.    
     
Automatic Centralized Lubrication    
Two hydraulically powered Lincoln single line automatic lubrication systems are provided as standard, complete with time and volume variable controls. The central lube grease system is supplied from a refillable 200 liter 53 gal barrel. A second, identical system supplies open gear lubricant to the swing ring teeth through a lube pinion. Replenishment of the containers is through the Wiggins connections on the service arm.    
     
Service Refill Capacities    
Hydraulic oil tank 1,030 U.S. gal 3900 ltr
Hydraulic system 1,559 U.S. gal 5900 ltr
Fuel 1,691 U.S. gal 6400 ltr
Engine coolant 125 U.S. gal 475 ltr
Engine oil 77 U.S. gal 290 ltr
Centinel engine oil make up tank 122 U.S. gal 460 ltr
     
Operator 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 left 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 75 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    
• ISO 10263-4 Heating and air conditioning second heater and air conditioner as option    
     
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, optional are W-LAN or satellite modem.    
     
Operating Weights (approximate)    
PC4000 Backhoe: Operating weight including 9750 mm / 32'0" boom, 4500 mm / 14'9" stick, 22 m³ / 29.0 yd³ backhoe bucket, operator, lubricant, coolant, 1/3 fuel and standard equipment.    
     
Shoe Width: Operating Weight: Ground Pressure:
47'' / 1200 mm backhoe 869,200 lb / 394 t 31.3 psi / 21.6 N/cm²
59'' / 1500 mm backhoe 879,800 lb / 399 t 25.4 psi / 17.5 N/cm²

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