●
High Rigidity Work Equipment
The arm and boom are strengthened to correspond to increasing bucket and arm
digging forces. The top and lower plate of the boom are changed from a three-
piece to a one-piece welded structure to improve durability. The arm plate thick-
ness is also increased (compared with PC300-7). The boom and arm have large
cross sectional dimensions as well
as continuous groove welding to improve
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.
●
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 opera-
tion and less CO
2
emission.
Fuel consumption is reduced 20% (compared with
Active mode).
Production is the same as the PC350-6
heavy duty mode.
●
Easily Recycled
PC350-7 is designed with consideration of recycling and
uses natural resources effectively.
Sound suppressing material is made from PET (poly-
ethylene terephthalate) resin that is easy to recycle.
All exterior parts are made from steel.
Engine and hydraulic system oil and filter replacement
intervals are extended to save earth resources.
All resin-made parts are indicated by material code
symbol.
5
Grease
Excellent Reliability and Durability
Harmony with Environment
Grease Sealed Track
PC350-7 uses grease sealed tracks for
extended undercarriage life.
Track Link with Strut
PC350-7 uses track links with
strut providing superb durability
The increased output and fuel savings of the Komatsu
SAA6D114E engine result in increased production and
improved production per unit of fuel.
Engine
The PC350-7 gets its exceptional power and work capacity
from a Komatsu SAA6D114E engine. Output is
180 kW
242 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.
Larger Maximum Drawbar Pull
PC350-7’s maximum drawbar pull is increased by 17% and
provides superb steering and slope climbing performance.
Maximum drawbar pull: 264 kN
26900 kgf
59,300 lb.
Drawbar pull/operating weight: 0.83
Drawbar pull
Hydraulic Pump Oil Flow Adjustment
When installing attachment (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 char-
acteristics. Selection is possible throught the LCD (Liquid
Crystal Display). This system also allows throttling of the
attachment side discharge flow to provide smooth work
equipment movement and compound operation with work
equipment and attachment.
Larger Digging Forces Provide Increased Production
Bucket digging force and arm crowd force when Power Max
is applied are increased
7%
by improvement of hydraulic
system. The larger digging forces generate the largest pro-
duction in the
30 ton
33 U.S. ton class.
*Bucket Digging Force: 228 kN
23200 kgf
51,150 lb.
*Arm Crowd Force:
171 kN
17400 kgf
38,360 lb.
*Measured with Power Max function,
3185 mm
10'5" arm and ISO rating
Smooth Loading Operation
High Production and Low Fuel Consumption
4
17%
increase
Four Working Modes
Working Mode Selection
The PC350-7 excavator is equipped with four working
modes (
A
,
E, L
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 20% (compared with PC350-7 Active mode)
and production is equal to the PC350-6 heavy duty mode.
Two return hoses
Two return hoses improve
hydraulic performance. In the arm
out function, the oil is returned to
the tank smoothly.
Smooth mode
Power mode
Boom floats upward, reducing
lifting of machine front. This facil-
itates gathering blasted rock and
scraping down operations.
Boom pushing force is increased,
ditch digging and box digging
operation on hard ground are
improved.
Two Boom Settings
Smooth mode provides easy operation for gathering blasted
rock or scraping down operation. When maximum digging
force is needed, switch to Power mode for more effective
excavating.
Lifting Mode
When lifting mode is selected, lifting capacity is increased by
7% by raising hydraulic pressure.
Photo may include optional equipment.
P
RODUCTIVITY
F
EATURES
H
Y D R A U L I C
E
X C A V A T O R
HYDRAULIC EXCAVATOR
PC350-7
PC350-7
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