7
6
S
AFETY
O
PERATION
F
EATURES
HYDRAULIC EXCAVATOR
H
Y D R A U L I C
E
X C A V A T O R
PC228US
-3E0
PC228US
-3E0
0
PC200
180
°
swing width:
3.99 m
13'1"
3040 mm
10'0"
2750 mm
9'0"
2310 mm
7'7"
Protrusion from track:
PC228US
910 mm
3'0"
PC228USLC
770 mm
2'6"
PC200
1640 mm
5'5"
Protrusion from track:
PC228US
280 mm
11.0"
PC228USLC
140 mm
5.5"
PC200
1350 mm
4'5"
1680 mm
5'6"
Implement
swing
radius
reduced by
730 mm
2'5"
Tail swing
radius
reduced by
1070 mm
3'6"
Short Implement Swing
Radius:
2310 mm
7'7"—Boom raising
angle of the PC228US-3E0 is
larger than the PC200-8, while
front implement protrusion is
lessened.
Safety Operation with Small Tail Swing Even in Confined Areas
Road and Bridge Work
Lane width
4.5 m
14’9"
3990 mm
13
'1"
Logging Road Work
Logging road width
approx.
4 m
13'1"
Short Tail Swing Radius:
1680 mm
5'6"—Because the tail
of the PC228US-3E0 is more
compact than conventional mod-
els, the PC228US-3E0 reduces
the operator’s need to check
behind him for movement.
Versatile Application with
Compact Machine Body and
Wide Working Range
Max. digging height
10700 mm
35'1"
Max. digging depth
6620 mm
21'9"
Max. digging reach
9875 mm
32'5"
Round Profile of Both Front and Rear Portion of the Upper Structure
for Safer Operation
Komatsu hydraulic excavators with small tail swing radius design adopt the round
profile for both left and right corners of the front portion of the upper structure as
well as its rear portion that features less protrusion from the track at swing. The
round profile design contributes to the prevention of contact accident at swing and
allows the machine to work in tight quarters or job sites where there are
some obstacles.
Protrusion from
the track:
(
625 mm
24.6’’
including the mirror)
280
mm 11’’
280
mm 11’’
280
mm 11’’
280
mm 11’’
Protrusion from
the track (rear)
Protrusion from
the track (rear)
Protrusion from the track:
(
350 mm
13.8’’ including the mirror)
Roadwork
When performing a roadwork, protru-
sion of the machine to the unoccupied
lane is kept minimum since the rear
portion of the upper structure protrudes
slightly from the track at swing. This
allows a dump truck to be positioned
closer to the track of the machine. The
operator is able to load materials effi-
ciently onto the front of the dump body
at ease since ample dumping reach is
assured for the loading. Large working
space is not required for the machine.
Logging and forest roadwork
Since the protrusion of the rear portion
of the upper structure is kept minimum,
there is less possibility of the counter-
weight hitting against a tree or a slope,
allowing the operator to operate the
machine at ease. Furthermore, large
digging height facilitates a slope finish-
ing work large drawbar pull assures
smooth and powerful traveling even on
rough terrain.
Demolition
The machine needs less working
space and can perform efficient demo-
lition work since it has large and ample
digging height.
