komatsu PC78UU-6 SPECIFICATIONS

FLYWHEEL HORSEPOWER

40.5 kW 54 HP @ 1850 rpm

OPERATING WEIGHT

7670 kg 16910 lb

BUCKET CAPACITY

0.28 m30.37 yd

3

Photos may include optional equipment.

Form No. CEN00132-01

Materials and specifications are subject to change without notice

is a trademark of Komatsu Ltd, Japan

Printed in Japan 200805 IP.As(05)

PC

78UU

COMPACT

HYDRAULIC EXCAVATOR

www.Komatsu.com

PC78UU-6 Compact Hydraulic Excavator

Lessen
tail swing
radius
510mm 1'8"

2440mm 8'0"

1200mm 3'11" 1240mm 4'1"

E

for higher production

Active mode

E

for less fuel consumption

Economy mode

Active mode

Economy mode

Active mode

Economy mode

Active mode

Economy mode

100

105

93

100

Ratio of hourly fuel consumption (%)

Ratio of hourly production (%)

3

PC78UU-6

COMPACT HYDRAULIC EXCAVATOR

Road & Bridge Work

Round form uses Tight Tail and Forward
Facing Design

The PC78UU design uses a Tight Tail concept for both
ends. This makes rotating the machine fast, easy and
confident. There is less to worry about in tight space
conditions because there is little protrusion from either
the tail end or the front end.

2540mm

180-degree
swing width

8'4''

2

PRODUCTIVITY

FEATURES

PRODUCTIVITY

FEATURES

Two working modes give a choice between
high production and low fuel consumption

Powerful swing
force increases
work efficiency
on slopes

PC78UU-6’s superior traveling
speed and power also provide
higher movility

New pressure-compensated CLSS hydraulic
system HydrauMind

Even when 2 or more actuators are operated
simultaneously, the PC78UU-6's pressure­compensated CLSS system ensures that each
actuator works
according to its
control input without
affecting the size of
the load. This gives
the operator precise
control at all times.

Engine speed sensing=Optimum Power

Power utilized by main pump is adjusted auto­matically in accordance with the engine speed.
That means this computerized system keeps
engine speed even under high load condition.

Back fill blade

The PC78UU features a standard
back fill blade that can quickly and
conveniently fill trenches and clear
up jobsites.

Photo may include optional equipment.

Bucket interference prevention system

The bucket automatically stops itself
from contact with the cab/canopy.
During operation, an alarm sounds
and the equipment is stopped if the
bucket gets too close to contact.
This feature helps maintain operator
confidence, which can increase pro­ductivity.

Digital Depth Display

Ditching, trenching, or digging is even more efficient with this
automatic depth measurement system. Informing the operator
of dig depth from ground level (absolute depth) and the depth
from any pre-set point (relative depth) enables work to go
much more smoothly and efficiently. This lessens the need for
the operator to stop operation or leave the cab after each
adjustment, which also increases productivity.

Height Limiter

An adjustable boom height limiter can be set prior to opera­tion. When the boom reaches the pre-set height limit, an
alarm will sound and the boom automatically stops. This
function can help increase productivity by letting operators
focus more on digging in tight or confined spaces.

Lessen
implement
radius
550mm 1'10"

PC60