komatsu PC270-7 SPECIFICATIONS
PC270-7
FLYWHEEL HORSEPOWER
134 kW 179 HP @ 2050 rpm
OPERATING WEIGHT
26900 – 27810 kg 59,300 – 61,310 lb
BUCKET CAPACITY
1.26 m31.65 yd
3
PC
270
Photo may include optional equipment.
HYDRAULIC EXCAVATOR
PC270-7
H YDRAULIC E XCAVATOR
HYDRAULIC EXCAVATOR
PC270-7 0
PC270-7 Hydraulic Excavator
WALK-AROUND
Building on the technology and expertise
Komatsu has accumulated since its
establishment in 1921, GALEO presents
customers worldwide with a strong,
distinctive image of technological innovation
and exceptional value. The GALEO brand will
be employed for Komatsu’s full lineup of
advanced construction and mining
equipment. Designed with high productivity,
safety and environmental considerations in
mind, the machines in this line reflect
Komatsu’s commitment to contributing to
the creation of a better world.
Genuine Answers for Land
Environment Optimization
and
Easy Maintenance
● Replacement interval is extended for engine
oil, engine oil filter and hydraulic filter
Harmony with Environment
● Low emission engine
A powerful turbocharged and air to air aftercooled Komatsu
SAA6D102E-2 provides 134 kW 179 HP. This engine meets EPA,
EU and Japan Tier 2 emissions regulations, without sacrificing
power or machine productivity.
● Economic mode saves fuel consumption
Fuel Comsumption is reduced 16%
(Compared with PC270-7 Active mode)
● Low operation noise
● Easily recycled design
Large Comfortable Cab
New PC270-7’s cab volume
is increased by 14%, offering
an exceptionally roomy
operating environment
● Highly pressurized cab with
air conditioner
● Low noise design
● Low vibration with cab
damper mounting
● FOG capable with optional
bolt- on top guard
FOG has been renamed to OPG (Operator
Protective Guards) top guard level 2 by ISO
10262.
See pages 6 and 7.
FLYWHEEL HORSEPOWER
134 kW 179 HP @ 2050 rpm
OPERATING WEIGHT
26900 –27810 kg
59,300 – 61,310 lb
BUCKET CAPACITY
1.26 m
1.65 yd
3
3
Productivity Features
● High Production and
Low Fuel Consumption
Production is increased with
larger output during Active
mode while fuel efficiency
is further improved.
● Maximum
Drawbar Pull
is increased 9% offering
superb steering and slope
climbing performance.
Moreover, another 6% increase
is available with the optional
heavy duty travel motor.
(Compared with PC250-6)
● Maximum Digging
Height is 10 m 32'10",
a benefit in jobs requiring
a longer reach.
See page 4.
2
● Remote mounted engine oil filter and
fuel drain valve for easy access
● Water separator is standard equipment
● Easier radiator cleaning
● Fuel tank capacity is increased
● SCSH bushings on work equipment
extend lubricating interval from
100 hours to 500 hours
See page 8.
● Bucket Breakout Force Is
Increased 23%
(Over the PC250-6)
● Arm Crowd Force Is
Increased 17%
(Over the PC250-6)
See page 4.
● Higher Lifting Capacity
PC270-7’s lateral stability is
improved, lifting capacity also
increased.
● Swing Torque Is
Increased 21%
(Over the PC250-6)
See page 4.
Photo may include optional equipment.
Multi Function Color Monitor
● Working mode selection system for
various types of work
● Hydraulic pump oil flow adjustment system for
adjustment of oil flow for attachments
● EMMS (Equipment Management Monitoring System)
for ease of maintenance and management of the
machine
See page 5.
Excellent Reliability and Durability
● High rigidity work equipment
● Sturdy frame structure
● Reliable Komatsu manufactured major components
● Highly reliable electronic devices
See page 5.
3
PC270-7
H YDRAULIC E XCAVATOR
PRODUCTIVITY FEATURES
High Production and Low Fuel Consumption
The increased output and fuel savings of the Komatsu
SAA6D102E-2 engine result in increased production and
improved production per unit of fuel.
Engine
The PC270-7 gets its exceptional power and work capacity
from a Komatsu SAA6D102E-2 engine. Output is 134 kW
179 HP, providing increased hydraulic power and improved
fuel efficiency.
Larger Digging Power Provides
Increased Production
Bucket digging force is increased by 23% and arm crowd
force is increased by 17%(compared with PC250-6).
Bucket Digging Force*: SAE 176 kN 17900 kgf 39,460 lb
Arm Crowd Force*: SAE 136 kN 13900 kgf 30,640 lb
ISO 198 kN 20200 kgf 44,530 lb
ISO 148 kN 15100 kgf 33,290 lb
HYDRAULIC EXCAVATOR
Multi-Function Color Monitor
A newly developed Multi-Function Color Monitor has multiple
functions, such as Working mode selection, hydraulic pump
oil flow adjustment for matching to attachment, and
maintenance interval notice, etc.
Working Mode Selection
The Multi-Function Color Monitor has Active mode,
Economy mode, Lifting mode and Breaker operation mode.
Working Mode Application Advantage
A
E Economy mode ● Excellent fuel economy
L Lifting mode
B
Active mode
Breaker
operation hydraulic flow
● Maximum production/power
● Fast cycle times
● Hydraulic pressure is
increased by 7%
● Optimum engine rpm,
PC270-7 0
of the attachment side discharge flow to provide smooth
work equipment movement and compound operation
with work equipment and attachment.
Lifting Mode
When the Lifting mode is selected,
lifting capacity is increased by
7% by raising hydraulic pressure.
EMMS (Equipment
Management
Monitoring System)
Monitor Function
Controller monitors engine oil level,
coolant temperature, battery charge
and air clogging, etc. If controller
finds any abnormality, it is displayed on the LCD with code.
Hydraulics
Unique two-pump system ensures smooth compound
movement of the work equipment. HydrauMind controls
both pumps for efficient engine power use. This system
also reduces hydraulic loss during operation.
Larger Maximum Drawbar Pull
PC270-7’s maximum drawbar pull is increased by 9% and
provides superb slope climbing performance.
The optional heavy duty travel motor gives a extra 6% increase.
Maximum drawbar pull: 249 kN 25400 kgf 56,000 lb
*(264 kN 26900 kgf 59,300 lb)
Drawbar pull/operating weight: 0.94 *(1.00)
*with optional heavy duty travel motor
(Compared with PC250-6)
Drawbar pull
9%
increased
Larger Lifting Capacity
Since lateral stability is improved by use of undercarriage for
PC300-7 and lifting mode is employed, lifting capacity is
increased
4
.
6.1 m 20'
6.4 ton
7.05 U.S. ton
4.6 m 15'
*Measured with Power Max function, 3045 mm 10'0" arm
Economy Mode
Economy mode is environmentally friendly. Fuel consumption
is reduced 16% (compared with PC270-7 Active mode) and
production is equal to the PC250-6 Heavy-duty mode.
Power Max Function
This function temporarily increases digging force by 7% for
added power in tough situations.
Automatic Travel Speed
Travel speed is automatically shifted from high to low
speed according to the pressure of the travel.
High Mid Low
Travel Speed
*with optional H/D *(4.5 km/h) *(3.3 km/h) *(2.8 km/h)
travel motor *(2.8 mph) *(2.1 mph) *(1.8 mph)
5.5 km/h 4.1 km/h 3.0 km/h
3.4 mph 2.5 mph 1.9 mph
Large Digging Height
PC270-7’s maximum digging height is 10 m 32'10",
facilitating jobs that require a longer reach, such as
demolition and slope finishing.
Larger Swing Torque
Swing torque is increased by 21% by increasing the swing
motor capacity. As a result, high swing performance is
obtained on slopes.
Hydraulic Pump Oil Flow Adjustment System
When installing attachments (breaker, crusher, etc.) and
B, A, or E mode is selected, it is possible to adjust engine and
hydraulic pump discharge flow to match attachment
characteristics. Selection is possible throughout the LCD
(Liquid Crystal Display). This system also allows throttling
Maintenance Function
Monitor informs replacement time of oil and filters on LCD
when the replacement interval is reached.
Trouble Data Memory Function
Monitor stores abnormalities for effective troubleshooting.
Excellent Reliability and Durability
● Undercarriage for 30-tone class
Since the undercarriage of PC300-7,
which is one class larger, is used for
PC270-7, it is very durable.
● High Rigidity Work Equipment
The arm and boom are strengthened to correspond to increasing
bucket and arm digging forces. The arm and boom cross sectional
strength are also increased 25% and 8% respectively. The boom and
arm have large cross-sectional dimensions as well as continuous groove
welding, improving digging and side-contact strength.
● Sturdy Frame Structure
The revolving frame, center frame and undercarriage are designed
by using the most advanced three-dimensional CAD and FEM analysis
technology.
● Reliable Components
All of the major machine components, such as engine, hydraulic pumps,
hydraulic motors and control valves, etc., are exclusively designed and
manufactured by Komatsu.
● Highly Reliable Electronic Devices
Exclusively designed electronic devices have passed severe testing.
● Controller ● Sensors
● Connectors ● Heat resistant wiring
● Metal guard rings protect all the hydraulic cylinders and improve reliability.
Grease Sealed Track provides excellent
undercarriage durability
Track Link with Strut
PC270-7 uses track links with
strut providing superb durability
5
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