Komatsu PC18MR-3 Brochure page 3

MR SERIES C
-3 O M P A C T
P
RODUCTIVITY
Tight Tail Swing
Operator is able to focus on the work in front of them and
worry less about a rear swing impact, even in confined areas
with only an 80mm 3" projection over the tracks.
Confined Job Site
Advantage
Operator can focus on digging
and improve productivity,
because they can worry less
about obstacles to the rear of the
machine, such as parked cars,
walls and trees.
PC18MR-3 2,070mm 6'9"*
2,800mm
2,800mm
PC20MR-3 2,250mm 7'5"*
2,540mm
PC27MR-3 2,515mm 8'3"*
2,365mm
2,365mm
PC30MR-3 2,415mm 7'11"*
PC35MR-3 2,550mm 8'4"*
PC45MR-3 2,830mm 9'3"*
PC55MR-3 2,800mm 9'2"*
* : When boom swing
4
H E
Y D R A U L I C X C A V A T O R
F
EATURES
CLSS HydrauMind Hydraulic System
When two or more actuators are operated simultaneously,
the pressure-compensated CLSS system ensures each
actuator works according to its control input, regardless of
the size of the load. This gives the operator precise control
at all times.
Automatic Two-speed Travel
The travel speed selector switch installed on the blade control
allows the operator to
engage high speed trav-
el. Once engaged the
system automatically
senses he travel load
and shifts between high
speed and low speed
travel.
Expandable undercarriage (PC18MR-3)
The PC18MR-3 can pass through narrow space due to nar-
row width and undercarriage can be expanded for good sta-
bility during excavation.
expanded reduced
 
1280mm 990mm
Working Ranges
PC18MR-3
Max. digging height
3615 11'10"
Max. digging depth
2160 7'1"
Max. digging reach
3935 12'11"
at ground level
Loading height 1220 4'0"
PC35MR-3
Max. digging height
5000 16'5"
Max. digging depth
3110 10'2"
Max. digging reach
5170 17'0"
at ground level
Loading height
1805 5'11"
Digging Force
PC18MR-3
Max. crowd force: Arm 1010 2230
Max. digging force: Bucket
1620 3570
PC35MR-3
Max. crowd force: Arm
2100 4630
Max. digging force: Bucket 3050 6720
Auxiliary Flow
PC18MR-3
Auxiliary flow 35 9.2
PC35MR-3
Auxiliary flow
70 18.5
Drawbar Pull
PC18MR-3
Max. drawbar pull 1700 3750
PC35MR-3
Max. drawbar pull
3400 7500
!!
COMPACT HYDRAULIC EXCAVATOR
mm ft.in.
PC20MR-3 PC27MR-3 PC30MR-3
4000 13'1" 4480 14'8" 4840 15'11"
2280 7'6" 2550 8'4" 2760 9'1"
4000 13'1" 4550 14'11" 4910 16'1"
1430 4'8" 1650 5'5" 1700 5'7"
PC45MR-3 PC55MR-3
5515 18'1" 5945 19'6"
3350 12'0" 3800 12'6"
5575 18'3" 6070 19'11"
1945 6'5" 1930 6'4"
Max. digging reach
at ground level
kg lb
PC20MR-3 PC27MR-3 PC30MR-3
1390 3065 1500 3310 1800 3970
1920 4235 2230 4920 3000 6610
PC45MR-3 PC55MR-3
2200 4850 2440 5380
Stability
3460 7630 3980 8770
The MR-3 series offers exceptional lifting capacity and stabil-
ity in a tight tail machine.
Lifting capacity comparison
ltr/min USgal/min
PC20MR-3 PC27MR-3 PC30MR-3
PC18MR-3
35 9.2 50 13.2 70 18.5 3m 10' 220 480
Rating at max. reach
185 410
PC45MR-3 PC55MR-3
70 18.5 70 18.5 PC35MR-3
3m 10' 580 1280
Rating at max. reach
345 760
The conditions of this comparison are a standard arm, sideways, blade on
kg lb
ground, and at a height of 0m (ground level).
PC20MR-3 PC27MR-3 PC30MR-3
2060 4540 3200 7050 3400 7500
PC45MR-3 PC55MR-3
4280 9440 4280 9440
MR SERIES
-3
kg lb
PC20MR-3 PC27MR-3 PC30MR-3
365 800
285 630 370 820
240 530 245 540 220 480
PC45MR-3 PC55MR-3
995 2190 1005 2220
435 960
505 1110
Max. reach
W
5