NET HORSEPOWER103 kW 138 HP @ 2000 rpm
OPERATING WEIGHT20900– 21437 kg43,643– 47,260 lb
BUCKET CAPACITY0.50–1.20 m3
0.66–1.57 yd3
HybridPC200LC-8Hybrid Hydraulic Excavator
• Lower CO2 emissionsIn one hour of operation, the Hybrid PC200LC-8 emits up to 10 kg 22 lb less CO2*
• Low Fuel ConsumptionThe Hybrid PC200LC-8 used 25-41% less fuel in actual customer trials*
*Compared to the conventional PC200LC-8
INTRODUCTORY
2
Hydraulic Excavators Hybrid PC200LC-8
The history of Hybrid construction machinery hasjust started. This turning point in constructionequipment technology will reshape our industry andhave an impact for years to come.
Komatsu Harmony is fundamental in matching thediesel/electric Hybrid system to the hydraulicrequirements to provide high productivity with lowfuel consumption. The Hybrid controller synchronizesthe conventional engine and hydraulic pumps withelectric assist to provide a unique operationalexperience. The more the Hybrid technology isutilized by swinging and regenerating energy, thegreater the fuel consumption benefit.
Model PC200LC-8 Hybrid/PC200LC-8 (conventional)
Operating weight 20900 - 21437 kg43,643 - 47,260 lb
Arm 2925 mm 9'7"
Arm digging force (SAE) 12600 kgf 27,780 lb
Bucket digging force (SAE) 14100 kgf 31,080 lb
Swing torque 6900 kg•m 49,907 ft lb
You can expect the same level of productivity from the Hybrid
PC200LC-8 excavator as the conventional PC200LC-8
excavator. Transportation dimensions, working forces,
working range, and lift capacities are equal to the
conventional PC200LC-8.
Generator Motor
Engine
Inverter
Komatsu Hybrid System
Capacitor
Utilizes electricity discharged from the capacitor when the engine accelerates.
Efficiently and instantaneously stores and discharges electric energy.
Electric powerassistance at the time of
engine acceleration for work equipment
operation
Electric motor toturn the upper
structure
Recovers energy, when turning slows down in loading operation.
Powers electric swing motor.The upper structure turning
Komatsu Ushers in a New Era in Excavator Technology
Hybrid Excavator Energy Flow
The hybrid system drives the upper structure with an electric
motor. The electric motor is also used to regenerate energy as
the upper structure slows down. Fuel consumption is improved
by the ability to use the regenerated energy to assist during
high power demands allowing the engine to run at an optimum
speed for high efficiency.
3
The “Komatsu Hybrid System” uses an “Ultra Capacitor” to
instantaneously store and give off electrical energy efficiently.
This capacitor charges and discharges in a much faster method
than the slower chemical reactions that take place in batteries.
The high energy demand and frequent cycles needed by an
excavator are matched by the instantaneous charging and dis-
charging characteristics of a capacitor.
Ultra Capacitor for Energy Storage
In construction equipment, the energy demand is high and
occurs in a short amount of time. Combined with a high
frequency of demand, the electrical energy requirements to
operate construction equipment cannot be met with current
battery technology.
Pow
erde
nsity
(Fre
quen
tuse
ofla
rge
pow
er)
Forklift trucks
Capacitors
Batteries
Cars
Energy density (Longer use of small power)Continuousness
Constructionequipment
Instantaneousness
Generator/Motor
The generator motor is built-in between the engine and hydraulic
pump for effective power transmission to the hydraulic pumps.
The generator can charge the capacitor during periods when no
work equipment or travel operations are used. The generator
motor also receives power from the capacitor for engine assist,
as commanded by the Hybrid controller.
Swing Motor/Generator
The Hybrid PC200LC-8 uses an electric swing motor that
rotates the upper structure and recovers energy during swing
braking. A special housing, which circulates cooling water and
lubricating oil, further enhances durability.
Inverter (Converter) and Ultra Capacitor
The inverter receives AC energy and converts it to DC energy
from two sources:
1. Recovered energy from the swing motor/generator
2. Charging power from the engine’s generator/motor
The converted DC energy from these two sources is quickly
stored in the Ultra Capacitor. The stored DC energy is then
quickly released and converted to AC to power the swing motor
and to assist the engine RPM. A special housing allows cooling
water to circulate further enhancing durability.
Hybrid Components
The work equipment is operated hydraulically by energy
generated by the engine as in the conventional equipment (red
arrows). Swing is driven by electrical energy from the capacitor
and generator (yellow arrows).
Energy generated during swing deceleration is regenerated and
is stored in the capacitor (green arrows). Some of the
regenerated energy assists the engine through the
generator/motor and assists work equipment operation.
Work equipment operation + Start of swing Work equipment operation + Swing deceleration
Hydraulic Excavators Hybrid PC200LC-8
www.KomatsuAmerica.com Komatsu America Corp. is an authorized licensee of Komatsu Ltd.Materials and specifications are subject to change without notice
is a registered trademark of Komatsu Ltd., JapanKOMTRAX® is a registered trademark of Komatsu America Corp.
AESS810-00 ©2009 Komatsu America Corp. D10(100)C 10/09 (EV-1)
Energy Management
The machine monitor panel includes a “Hybrid Operation
Monitor” screen to display energy flow as the machine operates.
The monitor screen can be changed to display status of
capacitor charging and discharging and engine assist by the
generator/motor as energy flow. The Hybrid controller manages
energy flow making it seamless for the operator.
With a focus on reducing Owning and Operating costs and improvingmachine utilization, KOMTRAX equipped machines can send location,SMR and operation maps to a secure website utilizing wireless technology.KOMTRAX remote machine monitoring provides accurate productivity andutilization information which will improve efficiency and assist with bestpossible operations and management decisions. Machines also relay errorcodes, cautions, maintenance items, fuel levels, and much more.
®
Please refer to the conventional PC200LC-8 specification
sheet for a complete list of specifications.
Note: The Hybrid PC200LC-8 may exclude equipment that is
standard on the conventional PC200LC-8. Contact your
distributor for details.