● Low Noise
Noise is reduced not only from the engine but also
during swing and hydraulic relief. Dynamic noise level
is 104 dB.
● Environment Oriented Mode (Economy Mode)
Economy mode meets the needs of the 21st century.
Economy mode offers the user fuel savings, quiet
operation and less CO
2
emission.
● Fuel consumption is reduced 16% (compared with
Active mode).
● Production is the same as the PC220-6
Heavy-duty mode.
● Easily Recycled
PC220-7 is designed with consideration of recycling and
uses natural resources effectively.
● Sound suppressing material is made from PET
(polyethylene terephthalate) resin that is easy to recycle.
● All exterior parts are made from steel.
● Engine and hydraulic system oil and filter replacement
interval are extended to save earth resources.
● All resin-made parts are indicated by material code
symbol.
5
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 PC220-7 gets its exceptional power and work capacity
from a Komatsu SAA6D102E-2 engine. Output is 125 kW
168 HP, providing increased hydraulic power and improved
fuel efficiency.
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.
Large Digging Height
PC220-7’s maximum digging height is 10 m 32'10",
facilitating jobs that require a longer reach, such as
demolition and slope finishing.
Larger Lifting Capacity
PC220-7’s lateral stability is improved, as a result, the
PC220-7 lifting capacity is
increased. Example: lifting
capacity over side (reach 6.1
m 20', height 4.6 m 15')
is increased from 4.45 ton
4.9 U.S. ton to 4.8 ton
5.3 U.S. ton.
Larger Digging Power Provides
Increased Production
Bucket Digging Power is obtained by bucket digging force x
bucket digging speed. New PC220-7 bucket digging force is
increased by 9% and bucket digging speed is increased by
12%, resulting total bucket digging power is increased 21%
(bucket digging force compared with PC220-6). The digging
force and speed generated result in the largest digging
power and the largest production in the 22 ton
24 U.S. ton class.
High Production and Low Fuel Consumption
4
Bucket Digging Force Bucket Digging Speed
x
Bucket Digging Power
=
increase
21%12%
increaseincrease
9%
Larger Maximum Drawbar Pull
PC220-7’s maximum drawbar pull is increased by 16%,
provides superb steering and slope climbing performance.
Maximum drawbar pull: 202 kN 20570 kg 45,350 lb
Drawbar pull/operating weight: 0.91
Three Working Modes
Working Mode Selection
The PC220-7 excavator is equipped with three working
modes (A, E and B mode). Each mode is designed to match
engine speed, pump speed, and system pressure with the
current application. This provides the flexibility to match
equipment performance to the job at hand.
Economy Mode
Economy mode is environmentally friendly. Fuel consumption
is reduced 16% (compared with PC220-7 Active mode)
and production is equal to the PC220-6 Heavy-duty mode.
Power Max Function
This function temporarily increases digging force by 7% for
added power in tough situations.
Working Mode Application Advantage
Active mode
● Maximum production/power
A
● Fast cycle times
E Economy mode ● Excellent fuel economy
B
Breaker
● Optimum engine rpm,
operation hydraulic flow
Excellent Reliability and Durability
Harmony with Environment
Grease Sealed Track provides excellent
undercarriage durability
Track Link with Strut
PC220-7 uses track links with
strut providing superb durability
6.1 m 20'
4.6 m 15'
4.8 ton
5.3 U.S. ton
● 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.
PRODUCTIVITY FEATURES
H YDRAULIC E XCAVATOR
HYDRAULIC EXCAVATOR
PC220-7
PC220-7 0
To Next Page
Loading...
