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

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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.