2
W
ALK-
A
ROUND
H
Y D R A U L I C
E
X C A V A T O R
HYDRAULIC EXCAVATOR
PC850
-8
PC850
-8
0
HORSEPOWER
Gross: 370 kW
496 HP @ 1800 rpm
Net: 363 kW
487 HP @ 1800 rpm
OPERATING WEIGHT
PC850-8: 78700– 79500 kg
173,500–175,270 lb
PC850SE-8: 78300– 79100 kg
172,620-174,380 lb
Ecology and Economy Features
●
Komatsu SAA6D140E-5 Engine Meets Tier 3 Emissions Regulations.
• World’s first cooled EGR system with bypass-assist type electronically
controlled venturi
• Offers high power and low fuel consumption, while conforming to
Tier 3 emission regulations.
• Reduces NOx emission approximately 40%.
• Equipped with an electronically controlled variable speed fan.
●
Economy Mode Four-level Setting
Enables operator to select the appropriate Economy mode level to match
production requirement with lowest fuel consumption.
●
Reduction of Ambient Noise
Meets the EU Stage 2 noise regulations.
• Electronically controlled variable speed fan drive
• Large hybrid fan
• Glasswool-furnished low-noise muffler and noise reducing cover around
the muffler
See page 4.
Working Environment
●
Large Comfortable Cab
• Low noise and vibration with cab damper mounting
• Large-capacity air conditioner (optional)
• Pressurized cab prevents external dust from entering
• OPG top guard level 2 (by ISO 10262 standard)
capable with optional bolt-on top guard.
See pages 8, 9.
Advanced Monitor Features
• Machine condition can be checked with
Equipment Management Monitoring System
(EMMS).
See page 11.
• Two working modes combine with heavy lift
mode for maximum productivity.
See page 5.
Photo may include optional equipment.
Easy Maintenance
●
Easy Cleaning of Cooling Unit
Fan reverse-rotation function
facilitates clogged radiator cleaning.
●
Centralized Arrangement of Engine
Checkpoints
●
Anti-slip Plates
for improved foot
traction
●
Large Handrail, Step and Catwalk
provide easy access to the engine
and hydraulic equipment.
●
Increased Fuel Tank Capacity
See page 10.
●
Highly Reliable Electronic Devices
Exclusively designed electronic devices have
passed severe testing.
• Controllers • Sensors • Connectors
• Heat resistant wiring • Circuit breaker
●
Boom Foot Hoses
are arranged under the boom
foot, improving hose life and safety.
See page 6.
Excellent Reliability and Durability
●
KMAX Bucket Teeth
offer superior penetration and long-
term sharpness.
●
Fuel Pre-filter
with water separator equipped as standard.
●
O-ring Face Seals,
which have excellent sealing
performance, are used for the hydraulic hoses.
●
High-pressure In-line Filtration
The cool-running hydraulic system is protected with the
most extensive filtration system available, including a
high pressure in-line filter for each main pump.
Productivity Features
●
High Work Equipment Speed
Increased arm dumping and bucket
dumping speed realize efficient loading
operation.
●
Heavy Lift Mode
The heavy lift mode increases lifting force by
10%.
●
Large Digging Force
High operation efficiency with large digging
force for severe applications.
●
Two-mode Setting for Boom
Switch selection allows either powerful
digging or smooth boom operation.
●
Twin Swing Motor System
provides excellent
swing performance, even on slopes.
●
Large Drawbar Pull and Steering Force
provide excellent mobility.
●
Swing Priority Mode
The swing priority mode improves efficiency
for loading dump trucks.
●
Shockless Boom
Switch selection reduces chassis vibration
after sudden stops.
See page 5.
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