HYDRAULIC EXCAVATOR
EX-6 series
HYDRAULIC EXCAVATOR
Model Code : EX2500-6
Engine Gross Power : 1 044 kW (1 400 HP)
Operating Weight : Loading Shovel : 249 000 kg
Backhoe
: 248 000 kg
Loading Shovel Bucket : PCSA Heaped : 15.0 m3
16.5 m3
Backhoe Bucket : PCSA Heaped : 15.0 m3
CECE Heaped : 13.2 m3
Ultra Large Sized Production
from the Hitachi Gigantic
Excavators
The Hitachi Giants Yield
Amazing Mining Production…
Setting a New Standard
2
3
SOLUTION
GIANT
Giant-Sized Productivity
Based on Hitachi's
Theory of Evolution.
Each Hitachi generation listens
to the needs of the work site
and gives birth to an even-better
new generation.
Powerful Single Engine— Ready for the task.
Time-proven Cummins diesel engine produces a total of 1 044 kW (1 400 HP) for
handling the big excavation jobs.
• 1 044 kW (1 400 HP)
Emission Control Engine— Helping to protect our environment.
Conforms to U.S. EPA Tier Ⅱ emission regulations.
Efficient E-P Control— Adjusts power output to the work being performed.
Hitachi's computer-aided Engine-Pump Control (E-P Control) coaxes optimum
efficiency from the engine and hydraulic pumps. This innovative system senses load
demand and controls engine and pump output for maximum operating efficiency.
Larger Bucket Provides High Work Capacity.
• Loading shovel bucket : 15.0 m3
• Backhoe bucket : 15.0 m3
Maximum Excavating Force.
• Loading shovel : Arm crowding force : 918 kN (93 600 kgf)
Breakout force : 843 kN (86 000 kgf)
• Backhoe : Arm crowd force (ISO) : 825 kN (84 100 kgf)
(SAE : PCSA) : 745 kN (76 000 kgf)
Bucket digging force (ISO) : 832 kN (84 800 kgf)
(SAE : PCSA) : 751 kN (76 600 kgf)
Large Bucket— Designed to enhance efficiency.
The large bucket has been shaped specifically
to enhance scooping and loading operations. Its
sharp tilt angle helps boost operating efficiency.
Tilt angle
Bucket Passes to Dump Trucks
Maximum Payload
SAE 2:1
Heaped
Load Capacity (
)
Loading Shovel
3
3
15.0 m (19.6 yd )
Backhoe
15.0 m3 (19.6 yd3)
70
HITACHI
HITACHI
EH1700
EH3500
108.4 ton
173.0 ton
60.3 m
115.1m3
3
4
4
7 or 8
7 or 8
Productivity-Boosting Auto-Leveling Mechanism— One-lever leveling control.
This is another unique Hitachi function developed exclusively for more efficient
leveling operations.
Note: Photos in this catalog may include optional equipment.
They may also include custom-made options to meet specific user needs.
4
5
SOLUTION
GIANT
More Than Durable
Just Plain Tough
Strategically Positioned Oil Coolers—
Helps keep oil temperatures
Built-in toughness means the
Hitachi will continue to get
giant-sized jobs done fast.
Two oil coolers are used for optimal
cooling efficiency. They are positioned
far from the engine radiator for even
better cooling potential.
High-Mounted Compact Travel Motors
and Optional Travel Motor Guard— Help
to boost durability at rugged work sites.
Rigid Box Design— Resists bending
and twisting forces.
This design helps protect the travel
motors from damage by rocks.
Rugged Track Links— Shoes include
roller guides for extended service life.
Computer-assisted analysis was
used to check that the frame box can
withstand heavy-duty excavation work.
Solid Cast Track Frame— More strength
for this key area.
Roller guide
The track frame
Track
frame
is cast as a
solid unit and
includes a flange
for improved
reliability. This non-welded design
is used exclusively on large Hitachi
models.
This design has proven itself on
Hitachi's popular Giant EX Series. The
roller guides have been added to help
extend service life.
Constant Correct Track Tension—
Nitrogen gas accumulators absorb
abnormal track tension.
Helps prevent abnormal track tension
from causing damage. Travel is
automatically stopped if accumulator
pressure exceeds a preset level.
6
7
Constant-Cab-Comfort Air Conditioner— Keeps the cab pressurized to keep out dust
while maintaining comfortable temperature.
Intelligent Multi-Display Monitor provides machine data
and operating status at a glance.
The operator can monitor machine conditions and
operating status with a 10.5-inch color LCD. The
controller provides instant fault diagnosis through all
sensors, displaying warnings and countermeasures if
failure arises.
Major Functions:
SOLUTION
GIANT
Designed to Offer Comfort
and Intelligence
Comfortable operator space
and simplified maintenance,
backed by Hitachi technologies
and experience.
High Visibility 6.4 Meter Cab Height—
Providing a clear view of the work area.
Rugged Comfortable Cab— Protects
the operator from falling objects.
Efficient Cab Layout— All controls
within natural reach of operator.
Gives the operator a clear view, even
when a large 200 US ton class dump
truck is being loaded. This high height
and forward-sloping cab provides a
view that boosts productivity.
Fluid filled elastic mounts help absorb
vibration to provide durability and
a comfortable ride. The top guard,
conforming to OPG* level II (ISO), is
provided on the cab roof.
The ergonomic layout of the cab means
the operator will do less stretching and
reaching when operating the controls.
This adds up to less operator fatigue
and greater operating efficiency.
*Operator Protective Guard
8
Electric Joystick Levers— Provides
pleasant control with less fatigue.
Electric joystick control levers have a
feather-touch allowing long periods of
effortless operation. Its stroke is much
shorter than that of hydraulic control.
Air Suspension Seat with Auto Operator
Weight Adjuster.
The operator seat cushion can
automatically be adjusted according to
the operator weight. This is convenient
for a machine operated by two or more
operators.
•Multiple meters, and alert symbols indication
•Alert/failure status, and countermeasures indication
•Snap-shot function that stores operating data, including
fiveminute operating data immediately before alerting, and
succeeding one-minute data (temperatures, pressures,
and more)
•Setting oil change intervals with alerting
Much more functions are provided to ease
maintenance and servicing.
* Illustration shows a sample of the
Emergency Switch.
Outside Cameras (Option)— Enhances operating safety.
The operator can monitor around the machine, using
four cameras (option) to eliminate blind spots.
Adjustable Sliding Cockpit— Moves to
the best position for the operator.
The operator can adjust the position of
the levers and the seat to custom fit his
size and operating style.
9
SOLUTION
GIANT
Designed to be
Maintenable
Carefully engineered to allow
full 24-hour operation.
Easy Access and Maintenance—
Easy access speeds inspections and maintenance.
1
2
3
4
5
6
7
8
9
10
11
12
Diesel Engine
Pump Drive Unit
Hydraulic Pump x 6
Hydraulic Oil Cooling Fan
Motor x 2
Hydraulic Oil Cooler x 2
Engine Radiator
LTA Radiator
Fuel Cooler
Pump Transmission Oil
Cooler
Engine-Pump Bulkhead
Control Valve x 3
Swing Device x 2
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Center Joint
Hydraulic Tank
Fuel Tank
Battery Unit
Lubricator
High Pressure Strainer x 6
Reserve Tank (Engin Oil)
Reserve Tank (Coolant)
Air Filter x 2 (Outer/Inner)
Muffler
Fuel Filter (Water Separater)
Cab
Ladder
Folding Stairs
Counterweight with Walkway— Easier
access for maintenance.
Auto Lubrication System Eliminates the
need for manual lubrication.
The Centralized Lubrication System:
Fast Filling System
This system automatically lubricates the
front joint pins and swing circle. This
eliminates cumbersome daily lubrication.
A walkway around the entire counterweight provides easy access to key
rear areas. This means faster and safer
inspection and maintenance.
Folding Stairs with Wide Steps.
Easy-to-Replace Grease Drum Can—
Designed to provide quick and easy
grease drum can
changes.
The compartment
floor slides down
to lower a drum
for simple, easy
replacement.
Low Maintenance Dust Ejector—
Automatically expels dust from the air
cleaner.
This is one less time-consuming task
during routine maintenance.
Convenient Centralized Filter System—
Designed to make filter inspection and
maintenance easier.
Contamination sensor— Alerts the operator of excessive contaminants in the oil.
Centralized position means that
inspection and
maintenance can
be performed
quickly and easily.
Folding stairs is designed for easy access to the machine for servicing and
maintenance.
Wide-Open Service Area— Provides the
space needed for quick and easy inspection and maintenance.
This area is conveniently located at the
center of the body and provides access
to the engine as well as the hydraulic
and electrical systems.
10
MIC Mining
The MIC Mining
comprises the
DLU (Datalogging unit) on
the machine DLU
continuously
records
performance of
the engine and the
hydraulic system.
The record can be
download by PC
and PDA.
This system detects accumulated
contaminants
that could
cause damage
and alerts the
operator before
trouble occurs.
SATELLITES
(Option)
MACHINE
DATA Logger
PC & PDA
Download
via Cable
INTERNET
PDA*
*PDA:Palm m-Series
DLU
Download Program
[Server]
Upload
via Internet
Transmit Downloaded Data
MMS
Upon Request
PC
Data Viewer Program
Customer Dealers
Reports
11
SPECIFICATIONS
WORKING RANGES
ENGINE
16
14
12
H
10
G
8
E
6
,
E
4
EH1700
2
0
Ground Line
2
F
4
A
C
6
B
D
8
18
16
14
12
10
8
6
4
0 Meter
2
Meter
18
14
12
10
C
6
D
4
2
0
Ground Line
2
EH1700
E
4
BB
,
6
8
,
A
10
A
12
20
18
16
14
12
10
8
6
4
2
0 Meter
DIMENSIONS
UPPERSTRUCTURE
Swing speed ............... 3.8 min-1 (rpm)
Unit: mm
UNDERCARRIAGE
High: 0 to 2.3 km/h
Low : 0 to 1.6 km/h
Maximum traction force ... 1 330 kN (135 600 kgf)
Grade ability ................ 60 % (30 degree) continuous
Travel speeds ..............
WEIGHTS AND GROUND PRESSURE
Loading Shovel
Equipped with 15.0 m3 (PCSA heaped) bottom dump bucket
Shoe width
Operating weight
Ground pressure
1 000 mm
249 000 kg
181 kPa (1.85 kgf/cm2)
Backhoe
Equipped with 9.0 m boom, 4.2 m arm, and 15.0 m3 (PCSA heaped)
bucket
Shoe width
Operating weight
Ground pressure
1 000 mm
248 000 kg
181 kPa (1.84 kgf/cm2)
ATTACHMENTS
Loading Shovel
Bucket Capacity (PCSA 2:1 heaped)
15.0 m3 : Materials density 1 800 kg/m3
16.5 m3 : Materials density 1 600 kg/m3
R 6 290
6 190
Backhoe
Bucket Capacity (PCSA 1:1 heaped)
15.0 m3 : Materials density 1 800 kg/m3
7 250
2 060
2 140
800
1 000
994 kW (1 351 PS) at 1 800 min-1 (rpm)
1 044 kW (1 400 HP) at 1 800 min-1 (rpm)
50.0 L
5 000 L
Main pumps ................ 4 variable-displacement, axis piston
pumps for front attachment and travel
Pressure setting ..... 29.4 MPa (300 kgf/cm²)
Max. oil flow ........... 4 X 375 L/min
Swing pumps .............. 2 variable-displacement, axis piston
pumps for swinging
Pressure setting ..... 29.4 MPa (300 kgf/cm²)
Max. oil flow ........... 2 X 425 L/min
7 560
7 430
Cummins QSKTA50-CE
HYDRAULIC SYSTEM
Backhoe
BE-boom length 9.00 m
BE-arm length 4.20 m
A Max. digging reach
17 080 mm
A' Max. digging reach (on ground)
16 530 mm
B Max. digging depth 8 600 mm
B' Max. digging depth (8' level)
8 470 mm
C Max. cutting height
16 060 mm
D Max. dumping height
10 330 mm
E Max. vertical wall
5 070 mm
Bucket digging force
ISO
832 kN (84 800 kgf)
SAE: PCSA
751 kN (76 600 kgf)
Arm crowd force
ISO
825 kN (84 100 kgf)
SAE: PCSA
745 kN (76 000 kgf)
16
8
Model ..........................
Rated power
DIN 6271,net...........
SAE J1995, gross ...
Piston displacement ....
Fuel tank capacity .......
Loading Shovel
15.0 m3 / 16.5 m3
A Min. digging distance
5 340 mm / 5 200 mm
B Min. level crowding distance
7 980 mm / 8 240 mm
C Level crowding distance
4 980 mm / 4 960 mm
D Max. digging reach
14 060 mm / 14 300 mm
E Max. cutting height
15 010 mm / 15 250 mm
E' Max. dumping height
10 350 mm / 10 350 mm
F Max. digging depth
3 720 mm / 3 960 mm
G Working radius at max.
dumping height
8 140 mm / 8 140 mm
H Max. bucket opening width
2 150 mm / 2 150 mm
Arm crowding force
918 kN (93 600 kgf) /
907 kN (92 500 kgf)
Breakout force
843 kN (86 000 kgf) /
784 kN (79 900 kgf)
Meter
5 000
6 120
6 000
7 870
The number of wear plates and their installation positions on the
bucket of loading shovel or backhoe vary depending on applications
at job site. The installation of wear plates is indispensable.
Consult your nearest Hitachi or Hitachi dealer for datails.
These specifications are subject to change without notice.
Illustrations and photos show the standard models, and may or may not include optional equipment,
accessories, and all standard equipment with some differences in color and features.
Before use, read and understand the Operator’s Manual for proper operation.
Hitachi Construction Machinery
www.hitachi-c-m.com
KS-EN057P
07.11 (SA / HP, MT3)
Printed in Japan
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