8/2/2019 KAMATSU PC78US-8_
1/6
www.Komatsu.com
CEN00339-00 Materials and specifications are subject to change
without notice.is a trademark of Komatsu Ltd. Japan.
Printed in Japan 200810 IP.As(10)
HORSEPOWERGross: 42.8 kW 57 HP @ 1950 rpm
Net: 41 kW 55 HP @ 1950 rpm
OPERATING WEIGHT69457535 kg 15,315 16,615 lb
BUCKET CAPACITY0.090.34 m3 0.120.45 yd3
Photo may include optional equipment.
PC78US-8
PC
78US
B
5.0m
16'
3.0m
9'
0.0m
0'
-2.0m
-6'
PC78US-8 Arm : 1650mm 5'5" Bucket : 0.28 m3 0.37 yd3 SAE heaped
Shoe width : 450mm 17.7" triple grouser Without blade Unit : kg
lb
1.5m 4'3.0m 9'4.5m 14'
1.5m 4'3.0m 9'4.5m 14'
Maximum
Cf
*4060
*8960
Cs
*4060
*8960
Cf
*1790
*3960
*2300
*5070
2650
5850
*2630
*5810
Cs
*1790
*3960
2280
5030
1900
4200
1890
4180
Cf
1500
3320
1370
3020
1360
3010
Cs
1130
2500
1000
2220
1000
2210
Cf
*1780
*3920
1160
2550
1050
2310
1440
3170
Cs
1430
3150
860
1910
760
1690
1050
2330
Cf
*4230
*9330
Cs
*4230
*9330
Cf
*1870
*4130
2660
5880
2590
5710
Cs
*1870
*4130
1920
4230
1850
4070
Cf
*1490
*32901540
3400
1370
3020
1330
2930
Cs
1200
26501170
2580
1000
2220
960
2130
Cf
*1420
*3140980
2160
880
1950
1120
2490
Cs
1090
2420720
1600
640
1410
820
1810
PC78US-8 Arm : 2250mm 7'5" Bucket : 0.20 m3 0.26 yd3 SAE heaped
Shoe width : 450mm 17.7" triple grouser Without blade Unit : kg
lbMaximum
* L o a d i s l i m i t e d b y h y d r a u l i c c a p a c i t
y r a t h e r t h a n t i p p i n g . R a t i n g s a r e b a s e d
o n S A E S t a n d a r d N o . J 1 0 9 7 . R a t e d l o a d s d o
n o t e x c e e d 8 7 % o f h y d r a u l i c l i f t c a p a c i t
y
o r 7 5 % o f t i p p i n g l o a d .
PC78US-8 Arm : 1650mm 5'5" Bucket : 0.28 m3 0.37 yd3 SAE heaped
Shoe width : 450mm 17.7" triple grouser Blade on ground Unit : kg
lb
1.5m 4'3.0m 9'4.5m 14'
1.5m 4'3.0m 9'4.5m 14'
Maximum
Cf
*4060
*8960
Cs
*4060
*8960
Cf
*1790
*3960
*2300
*5070
*3360
*7410
*2710
*5980
Cs
*1790
*3960
*2300
*5070
2010
4430
2000
4410
Cf
*1780
*3930
*2120*4680
*1510
*3330
Cs
1190
2640
10602350
1060
2340
Cf
*1780
*3920
*1670
*3680
*1710
*3770
*1650
*3650
Cs
1500
3310
910
2020
810
1800
1120
2460
Cf
*4230
*9330
Cs
*4230
*9330
Cf
*1870
*4130
*3320
*7330
*3010
*6640
Cs
*1870
*4130
2020
4460
1950
4300
Cf
*1490
*3290
*1570
*3470
*2090
*4600
*1880
*4140
Cs
1260
2780
1230
2710
1060
2350
1020
2260
Cf
*1420
*3140
*1350
*2990
*1520
*3360
*1540
*3400
Cs
1150
2540
770
1700
680
1510
870
1920
PC78US-8 Arm : 2250mm 7'5" Bucket : 0.20 m3 0.26 yd3 SAE heaped
Shoe width : 450mm 17.7" triple grouser Blade on ground Unit : kg
lbMaximum
* L o a d i s l i m i t e d b y h y d r a u l i c c a p a c i t
y r a t h e r t h a n t i p p i n g . R a t i n g s a r e b a s e d
o n S A E S t a n d a r d N o . J 1 0 9 7 . R a t e d l o a d s d o
n o t e x c e e d 8 7 % o f h y d r a u l i c l i f t c a p a c i t
y
o r 7 5 % o f t i p p i n g l o a d .
A
B
5.0m
16'3.0m
9'
0.0m
0'
-2.0m
-6'
A
B
5.0m
16'
3.0m
9'
0.0m
0'
-2.0m
-6'
A
B
5.0m
16'
3.0m
9'
0.0m
0'
-2.0m
-6'
A
LIFTING CAPACITY
COMPAC
T
HYDRA
ULICEXCAVATOR
A: Reach from swing center
B: Bucket hook height
C: Lifting capacity
Cf: Rating over front
Cs: Rating over side
: Rating at maximum reachB
A
C
8/2/2019 KAMATSU PC78US-8_
2/6
HORSEPOWER
Gross: 42.8 kW 57 HP @ 1950 rpm
Net: 41 kW 55 HP @ 1950 rpm
OPERATING WEIGHT
6945 7535 kg
15,315 16,615 lb
BUCKET CAPACITY0.09 0.34 m3
0.12 0.45 yd3
WALK-AROUNDCOMPACT HYDRAULIC EXCAVATOR
PC78US-8
32
Large TFT LCD Monitor
Easy-to-see and use 7" large multi-
function color monitor
Can be displayed in 12 languages
for global support.
TF T : Thin Film Transistor
LCD : Liquid Crystal Display
See page 9.
Large Comfortable Cab Low noise design cab
Sliding convex door facilitates easy
entrance in confined areas.
Large cab improves working space.
See page 6.
Safety Features
Cab dedicated to hydraulic excavator
for protecting the operator in the
event of a roll over accident.
Safety enhancement with large side-
view and rear-view mirrors.
See page 7.
Photo may include optional equipment.
Easy Maintenance
Side-by-side cooling function enables
only the cooling unit to be attached
and detached.
Easy access to engine oil filter,
engine main fuel filter and fuel drain
valve
Equipped with the fuel pre-filter (with
water separator)
Equipped with the Equipment
Management Monitoring System
(EMMS) monitoring system.
See page 8.
Productivity Features
Tight tail swing
Excellent operation in tight tailswing radius design
Tail swing radius: 1240 mm 4'1
High mobility Large drawbar pull and steering
force are evident when operating
on a slope or other rough terrain.
Max. drawbar pull:
66.9 kN 6820 kgf 15,050 lb
The machine travel speedchanges automatically to Hi or Lo
at optimal points according to the
travel load.
Ecology and Economy Features
Low emission engineA powerful, turbocharged and air-to-air
aftercooled Komatsu SAA4D95LE-5 provides 41 kW 55 HP. This engine
is EPAInterim Tier 4 and EU Stage 3A emissions certified without
sacrificing power or machine productivity.
Low operation noiseSee page 4.
PC78US-8 C O M P A C T H Y D R A U L I C E X C A V A T O R
Mode selection
Five working modes designed to match enginespeed, pump delivery
and system pressure.
Economy mode improves fuel consumption.
Eco-gauge for energy-saving
operations
Extended idling caution
for fuel conservation
See page 5.
