PC850-8R1

REQUEST QUOTE / INFORMATION

 

79,800 Kg

Operating Weight

487 HP

Horsepower

5.00 m³

Bucket Capacity

OVERVIEW

FEATURES

PRODUCTIVITY, ECOLOGY & ECONOMY

  • High Power Komatsu SAA6D140E-5 Engine
  • Economy Mode Four-level Setting
  • Low Ambient Noise
  • Working Mode Selection
  • Heavy Lift Mode
  • Swing Priority Mode
  • Large Digging Force
  • High Work Equipment Speed
  • Large Drawbar Pull and Steering Force
  • Two-mode Setting for Boom
  • Shockless Boom Control

RELIABILITY & DURABILITY

  • Removed Water and Contamination in Fuel
  • High-pressure In-line Filtration
  • Highly Reliable Electronic Devices

SAFETY & COMFORT

  • Large comfortable cab
  • OPG Top Guard Level 2 (ISO 10262)
  • Rear view monitor system (Optional)

INFORMATION & COMMUNICATION TECHNOLOGY (ICT)

  • Large Liquid Crystal Display (LCD) Monitor
  • Equipment Management Monitoring System
  • KOMTRAX (Optional)

MAINTENANCE

  • Easy Checking and Maintenance of Engine
  • Easy Cleaning of Cooling Unit
  • Large Handrail, Step and Catwalk

Specifications

ENGINE

Model   Komatsu SAA6D140E-5
Type   Water-cooled, 4-cycle, direct injection
Aspiration   Turbocharged, aftercooled, cooled EGR
Number of cylinders   6
Bore   140 mm
Stroke   165 mm
Piston displacement   15.24 ltr
     
Horsepower :    
SAE J1995 - Gross 370 kW 496 HP
ISO 9249 / SAE J1349 - Net 363 kW 487 HP
Rated rpm   1800 min-1
Fan drive method for radiator cooling   Hydraulic
U.S. EPA Tier2 and EU Stage 2 emission certified    

 

HYDRAULIC SYSTEM

Type  

Open-center load sensing system
Number of selectable working modes   2
     
Main Pumps:    
Pumps for   Boom, arm, bucket, swing, and travel circuits
Type   Variable-capacity piston pumps
Maximum flow   2 x 494 ltr/min
     
Hydraulic Motors:    
Travel   2 x axial piston motor with parking brake
Swing   2 x axial piston motor with swing holding brake
     
Hydraulic Cylinder :
(Number of cylinder – bore x stroke x rod diameter)		    
Boom   2-200 mm x 1950 mm X140 mm
Arm   2-185 mm x 1610 mm x 120 mm
Bucket   1-185 mm x 1820 mm x 130 mm

 

SWING SYSTEM

Drive method Hydraulic motors
Swing reduction Planetary gear
Swing circle lubrication Grease-bathed
Swing lock Oil disc brake
Swing speed 6.8 min-1

 

DRIVES & BRAKES

Steering control   Two levers with pedals
Drive method   Fully hydrostatic
Travel motor   Axial piston motor, in-shoe design
Reduction system   Planetary gear triple reduction
Maximum drawbar pull   559 kN 57000 kgf
Gradeability   70%
     
Maximum Travel Speed :    
High   4.2 km/h
Low   2.8 km/h
Service brake   Hydraulic lock
Parking brake   Mechanical disc brake

 

UNDERCARRIAGE

Center frame H-leg frame
Track frame Box-section
Track adjuster Hydraulic
   
Number of shoes (each side)

47 (each side)
Number of carrier rollers 3 (each side)
Number of track rollers (each side)

8 (each side)

 

COOLANT & LUBRICANT CAPACITY (REFILLING)

Fuel tank 980 L  
Radiator 100 L  
Engine 53.0 L  
Final drive (each side)​ 20.0 L  
Swing drive​ 24.5 x 2 L  
Hydraulic tank​ 470 L  

OPERATING WEIGHT (APPROXIMATE)

Operating weight including 7100 mm boom, 2945 mm arm, ISO 7451 heaped 4.30 m3 backhoe bucket, operator, lubricant, coolant, full fuel tank, and the standard equipment

Standard

ENGINE

  • Air cleaner, double element dry
  • Engine, Komatsu SAA6D125E-5
  • Variable speed cooling fan, with fan guard

ELECTRICAL SYSTEM

  • Alternator, 24V / 60A
  • Auto decelerator and auto-idling system
  • Batteries, 2 x 12V / 220 Ah
  • Starting motor, 11 kW
  • Working light 2 on boom, 1 at right front, 2 on cab

HYDRAULIC SYSTEM

  • Control levers and pedals for travel with Pressure Proportional Control (PPC) system
  • Fully hydraulic, with Electronic Open-Center Load-Sensing and engine speed sensing
  • In-line high pressure filters
  • Drain-filters for pumps & motors
  • Three control valves, 5+4+4 spools (Boom, arm, bucket, swing and travel)
  • Shockless boom control
  • Two-mode pressure setting for boom

GUARDS AND COVERS

  • Dustproof net for radiator and oil cooler
  • Full length track roller guard
  • OPG top guard level 2 (ISO 10262)
  • Pump/engine room partition cover
  • Strengthened revolving frame underground
  • Travel motor guards

UNDERCARRIAGE

  • 610 mm double grouser shoes
  • 8 track roller, 3 carrier rollers (Each side)
  • Hydraulic track adjusters (each side)
  • Rock protectors
  • Sealed track
  • Variable track gauge

OPERATOR CABIN

  • Cabin with fixed front window
  • Sound-suppresed cab with tinted safety glass windows
  • Intermittent window wiper and washer
  • Multi-function color monitor
  • Seat fully adjustable with suspension
  • Rear view mirror (R.H and L.H)

DRIVE & BRAKE SYSTEM

  • Brakes : hydraulic lock travel brakes, oil disc parking
  • Hydrostatic two travel speed system with planetary double reduction final drive

Optional

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