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
PC1250
-8
PC1250
-8
0
HORSEPOWER
Gross:514 kW
688 HP @ 1800 rpm
Net:502 kW
672 HP @ 1800 rpm
OPERATING WEIGHT
Backhoe
106500 – 110700 kg
234,790 – 240,050 lb
Loading shovel
110900 kg
244,490 lb
Ecology and Economy Features
●
Komatsu SAA6D170E-5 Engine Meets Tier 3 Emissions Certified.
• 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 certified.
• 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
• 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.
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.
Productivity Features
●
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 at 90˚ or 180˚.
●
Shockless Boom
Switch selection reduces chassis
vibration after sudden stops.
See page 5.
3
Excellent Reliability and
Durability
●
Strengthened Quarry Bucket Provided
Outstanding Wear-resistance (optional)
●
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.
