High Power Komatsu SAA6D140E Engine
Powerful turbocharged and air-to-air aftercooled Komatsu
SAA6D140E-5 engine provides
320 kW
429 HP.
This Komatsu SAA6D140E engine actualizes high-power to
low fuel consumption with the optimum fuel injection by
electronic heavy duty HPCR (High Pressure Common Rail)
fuel injection system.
Electronically Controlled Variable Speed Fan
Contributes to Low Fuel
Consumption and Low Noise
The electronic control system sets the
rotational speed of the cooling fan
according to the coolant, hydraulic oil,
and ambient temperature; effectively
uses the engine output to prevent
wasteful fuel consumption; and
reduces noise during low-speed fan
rotation.
Lower and Economical Fuel Consumption Using
Economy Mode
Enables operator to set the Eco
mode to up to four levels
according to working conditions
so that production requirement is
achieved at lowest possible fuel
consumption.
Reduction of Ambient Noise
Reduced noise by adoption of an electronically controlled
variable speed fan drive, large hybrid fan, low-noise muffler
and cover with glasswool, to meet EU Stage 2 noise
regulations.
Work Equipment Speed Increased
An arm quick return circuit is provided for arm dumping. This
returns a portion of oil flow directly to the hydraulic tank at
arm dumping to reduce the hydraulic pressure loss.
Combined with increased bucket dumping speed, faster
loading work is realized.
Large Drawbar Pull and Steering Force
Since the machine has a large drawbar pull and a high
steering force, it demonstrates excellent mobility even when
it is being used on inclined sites.
Large Digging Force
With the addition of one-touch Power Max. function digging
force has been further increased. (8.5 seconds of operation)
Maximum arm crowd force (ISO):
228 kN (23.3t)
246 kN (25.1t)
(with Power Max.)
Maximum bucket digging force (ISO):
294 kN (30.0t)
317 kN (32.3t)
(with Power Max.)
Lifting Mode
When lifting mode is selected, lifting capacity increases 17%
by raising hydraulic pressure. The work equipment and
swing speeds are lowered at the same time to provide
additional control.
Two-mode Setting for Boom
Smooth mode
provides easy operation for gathering
blasted rock and scraping operations. When maximum
digging force is needed, switch to
power mode
for more
effective excavating.
5
4
P
RODUCTIVITY &
E
COLOGY
F
EATURES
HYDRAULIC EXCAVATOR
PC600
-8R
0
Power Mode
Lifting Mode
Working Mode
Application
Advantage
Power
●
Maximum production/power
P
Mode
●
Fast cycle time
E
Economy
●
Good cycle time
Mode
●
Good fuel economy
Lifting
●
Hydraulic pressure is
L
Mode
increased 17%.
Hydraulics
Unique two-pump system assures smooth compound movement of the
work equipment. OLSS (Open Center Load Sensing System) controls all
pumps for efficient engine power use. This system also reduces hydraulic
loss during operation.
Power and Economy Mode
The PC600-8R excavator is equipped with two working modes. Each
mode is designed to match engine speed, pump speed, and system
pressure to the current application, giving the operator flexibility to match
equipment performance to the job at hand.
Multi-Function Color
Monitor
Working Mode Selection
8%
UP
8%
UP
(E0,E1,E2,E3)
Economy Mode
This is an image photo: may
differ from the actual engine.
Boom raised
Smooth
mode
Power
mode
H
Y D R A U L I C
E
X C A V A T O R
PC600
-8R
Pump for fan
Electronic control
unit for engine
Electronically controlled
variable speed fan
Hydraulic system
controller
LCD color monitor
Engine
Heavy duty HPCR (High Pressure
Common Rail) system
Hydraulic control valve
Main pump
Komatsu Technology
Komatsu develops and produces all major
components, such as engines, electronics
and hydraulic components, in house.
With this “Komatsu Technology,” and adding
customer feedback, Komatsu is achieving
great advancements in technology.
To achieve both high levels of productivity and
economical performance, Komatsu has
developed the main components with a total
control system.
The result is a new generation of high
performance and environment friendly
excavators.
