3,000-6,000 lb Capacity
Electric Cushion Tire Lift Trucks
Adaptability Defined
Talk about adaptable. With versatile Cat® lift trucks,
you receive all of the performance-boosting choices
you need, without the budget restraints you don’t.
Many years of industry-leading design experience
have been focused on providing you with this
reliable, cost-effective lift truck. Standard features
include an energy-efficient hydraulic system with a
revolutionary valve as well as a transistorized drive
controller featuring proportional regenerative braking.
These lift trucks can minimize your acquisition,
operating, and maintenance costs like never before.
2
Model
Rated Capacity
(lb)
Load Center
(in)
Rated Capacity
(kg)
Load Center
(mm)
EC15K
3000
24
1500
500
EC18K
3500
24
1800
500
EC18KL
4000
24
1800
600
EC20K
4000
24
2000
500
EC25K
5000
24
2500
500
EC25KE
5000
24
2500
500
EC25KL
5500
24
2500
600
EC30K
6000
24
3000
500
Adaptable Solutions
Get the performance you need with
the cost of ownership you want—
helping your operators to be more
productive and your operation
more profitable.
3
Advanced Hydraulic System
Features High-Efficiency
Control Valve
A revolutionary valve—custom-tailored to meet electric
lift truck operating requirements—helps propel energy
efficiency to new heights, improving battery shift life.
A number of compelling features are designed to assist in
optimizing performance, productivity, and reliability.
• Inlet Compensator
This feature directs excess flow to the tank at a
pressure slightly above what is required for the task.
As a result, energy is not wasted operating at relief
pressure as with other valves.
• Flow Control
The valve can be adapted to the flow requirements
of the tilt and auxiliary circuits, for a more efficient,
cooler-running lift truck.
• Adjustable Pressure Settings
Relief pressure for the auxiliary circuits can be
adjusted separately from lift and tilt, assisting with
compatibility for various attachments.
4
High-Efficiency Hydraulic Motors
And Pumps
Matched for your duty cycle, high-volume pumps and powerful
motors help complete hydraulic system efficiency. To help control
maintenance costs, the hydraulic motor includes a thermal
protection circuit, designed to alert the operator in case of
overheating. For applications focused on noise management, a
pump engineered especially for low-noise operation is available
as an option. The pump uses a high-volume, split-tooth design to
help minimize noise pressure and keep frequency low—allowing a
36-volt lift truck to achieve a sound level of only 64.4 dB(A).
5
The performance and efficiency of the separately
excited drive motor can enhance your operation
by seamlessly matching a wide range of available
torque and speed outputs to your application.
This helps lead to improved efficiency that can
result in longer battery shift life. To help keep
maintenance costs low, the brush life has been
improved through advances in materials
composition, and a thermal protection circuit is
included to moderate performance in the event
of possible overheating.
The horizontal line in the graph at right shows
how, at a given speed, multiple torques can be
produced by the motor without changing speed.
Speed
Separately Excited
Drive Motor
Torque
Advanced Drive Control
A General Electric SX drive controller uses Metal Oxide
Semiconductor Field Effect Transistors technology to
quietly deliver power to the drive motor. Along with
smooth acceleration, the controller features enhanced
performance on ramps with rollback control. Its solidstate design eliminates the need for direction,
regenerative braking, and field-weakening contactors,
which can lead to reduced maintenance costs.
6
Hydrostatic
Steering System
The hydrostatic steering system
features tapered roller bearings
and fixed-length tie rods for
low maintenance. A heavy-duty,
fabricated axle housing helps
protect the steering cylinder
from potential damage.
Regenerative Braking
(Using The Accelerator
To Brake)
When an operator switches direction lever position
and depresses the accelerator pedal, the lift truck
slows itself down in proportion to the position of
the pedal. This helps to extend both service brake
and brush life. Energy created by the drive motor
during slow down is returned to the battery,
resulting in cooler operation.
Proportional regenerative braking (“electric
braking”) is a standard feature that can help to
reduce maintenance and improve operational
efficiency. A sister circuit in the controller is also
standard and permits auto-regenerative braking,
which automatically engages regenerative braking
upon the release of the accelerator pedal.
7
Interactive Displays
An informative LED display is standard
equipment on each lift truck. In addition to
showing battery state of charge, error codes,
and truck status, it can be used to change lift
truck performance to match the application.
Four pre-programmed modes can be chosen at
the touch of a button. It can also be used as a
diagnostic tool, showing 16 controller fault
history events in sequence.
Optional LCD Display
An enhanced LCD display is an available
option. Among its features are a brush wear
indicator, clock, speedometer, and five-digit
hour meter. It can also be used to change lift
truck performance. To more precisely tailor
performance to the application, the
performance modes of the drive control and
optional transistor hydraulic control can be
selected independently. Up to 16 performance
combinations are available on a lift truck
equipped with transistor hydraulic control.
To enhance its use as a diagnostic tool, the
display tracks the time and date for each
controller fault history event, thereby
providing information that may help reduce
maintenance costs.
8
Comfortable Seat
The spacious operator’s compartment includes
a comfortable seat with fully contoured seat
and back cushions to help improve support
and security. A cloth-covered seat and a cloth,
semi-suspension seat are available as options.
Replacement seat cushions are also available.
Flex-Comfort Restraint
System
Standard on every electric Cat lift
truck, the resilient section gives the
operator extra freedom when turning
for reverse travel.
9
Ask For A Demonstration
The advantages of the 3,000-6,000 lb capacity
electric cushion tire Cat lift truck become
obvious with a demonstration. See strong
proof that Cat lift trucks and your Cat lift
truck dealer can offer you more productivitydriven benefits for a strong return on your
equipment investment. Call for an
appointment today.
10
SPECIFICATIONS
CHARACTERISTICS
CHARACTERISTICS
1
2
3
4
5
Capacity
Power
Tire type
Wheels (x = driven)
EC15K
MODEL
at rated load center
at load center – distance
diesel, gasoline, LP gas, electric
cushion, pneumatic
number front / rear
lb kg
in mm
3000
24
EC18K
MODEL
1500
500
3500
24
electric
cushion
2x/2
EC18KL
MODEL
1800
500
4000
24
electric
cushion
2x/2
1800
600
electric
cushion
2x/2
DIMENSIONS
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Lift
Lift with standard
two-stage mast
Forks
Fork spacing
Tilt
maximum fork height with rated load
maximum fork height
free fork height
thickness x length x width
out-to-out minimum / maximum
forward / backward
length to fork face
standard
Overall
width
w/ wide stance drive wheels
dimensions
w/ wide axle
with lowered mast
height seat height
to top of overhead guard
with extended mast
Minimum outside turning radius
Load moment constant
Minimum aisle – 90° stack – zero clearance (add load length)
in
in
in
in
in
in
in
in
in
in
in
in
in
in
in
in
mm
159
4035
171
4340
171
4340
mm
130
3320
130
3320
130
3320
mm
4.5
115
4.5
115
4.5
115
mm 1.4x42x3.9 35x1070x100 1.4x42x3.9 35x1070x100 1.4x42x3.9 35x1070x100
mm
9.4/32.0
240/818
9.4/32.0
240/818
9.4/32.0
240/818
5/6
5/6
5/6
mm
78.0
1980
78.0
1980
81.0
2055
mm
37.0
945
37.0
945
38.0
970
mm
39.0
996
39.0
996
41.0
1045
mm
n/a
n/a
n/a
mm
83
2105
83
2105
83
2105
mm
43.5
1102
43.5
1102
43.5
1102
mm
86.0
2180
86.0
2180
86.0
2180
mm
180
4570
180
4570
180
4570
mm
70.5
1790
70.5
1790
72.5
1840
mm
14.8
376
14.8
376
14.8
376
mm
85.2
2165
85.2
2165
87.4
2220
PERFORMANCE
24
25
Speeds
(Standard Motors)
26
28
24A
25A
Gradeability
(Standard Motors)
Speeds
(Optional Motors)
26A
28A
36V
48V
36V
lift speed loaded / empty
48V
36V
lowering speed loaded / empty
48V
36V
loaded at 1 mph (1.6 km)
48V
maximum empty
36V
48V
36V
travel loaded / empty
48V
36V
lift speed loaded / empty
48V
36V
lowering speed loaded / empty
48V
36V
loaded at 1 mph (1.6 km)
48V
36V
Maximum empty
48V
travel loaded / empty
Gradeability
(Optional Motors)
mph km/h
mph km/h
fpm m/s
fpm m/s
fpm m/s
fpm m/s
%
%
%
%
mph km/h
mph km/h
fpm m/s
fpm m/s
fpm m/s
fpm m/s
%
%
%
%
7.5/8.0
12.1/12.9
n/a
48/78
.24/.40
67/99
.34/.50
99/81
.50/.41
99/81
.50/.41
18
n/a
23
23
8.2/8.9
13.2/14.3
10.5/11.1 16.9/17.9
75/110
.38/.54
105/ 140
.53/.71
99/81
.50/.41
99/81
.50/.41
24
25
23
23
7.5/8.0
12.1/12.9
n/a
45/78
.23/.40
64/99
.32/.50
99/81
.50/.41
99/81
.50/.41
15
n/a
19
19
8.2/8.9
13.2/14.3
10.0/11.1 16.1/17.9
71/110
.36/.54
97/ 140
.49/.71
99/81
.50/.41
99/81
.50/.41
21
22
19
19
8.2/8.9
13.2/14.3
10.0/11.1 16.4/17.9
67/107
.34/.54
93/139
.47/.71
99/81
.50/.41
99/81
.50/.41
19
21
19
19
n/a
n/a
n/a
n/a
99/81
.50/.41
99/81
.50/.41
n/a
n/a
n/a
n/a
6200
8000
1200
2500
3725
6800
8800
1480
2320
4425
7400
9400
1940
2070
5300
WEIGHT
29
30
Empty
Axle load
w/minimum weight battery
with rated load
without load
front
rear
front
rear
lb
lb
lb
lb
lb
kg
kg
kg
kg
kg
2825
3750
570
1130
1690
3075
4200
660
1050
2010
3350
4250
910
940
2410
CHASSIS
31
Tire size
32
33
34
35
36
37
38
Wheelbase
Tread width
Ground clearance
Brakes
front, standard cushion tires
rear cushion tires
front, standard cushion tires
rear, cushion tires
at lowest point @ mast
at center of wheelbase
service
parking
in
in
in
in
in
in
in
mm 18x6x12-1/8 457x152x308 18x6x12-1/8 457x152x308 18x7x12-1/8 457x178x308
mm 14x4.5x8
356x114x203 14x4.5x8
356x114x203 14x4.5x8
356x114x203
mm
46.0
1170
46.0
1170
46.0
1170
mm
31.0
793
31.0
793
32.0
818
mm
32.5
826
32.5
826
32.5
826
mm
3.0
75
3.0
75
3.0
75
mm
4.6
118
4.6
118
4.6
118
type foot-operated, hydraulic
foot-operated, hydraulic
foot-operated, hydraulic
type hand-operated, mechanical hand-operated, mechanical hand-operated, mechanical
POWERTRAIN
39
40
41
42
43
44
43A
44A
45
46
47
48
11
Battery
Motors
Motors (Optional)
Controls
Relief pressure
Noise Level
type
maximum capacity
36V
@ 6 hr. discharge rate
48V
weight, minimum
traction output (60 min. rating) 36/48
lift output (20% rating)
36/48
traction output (60 min. rating) 36/48
lift output (20% rating)
36/48
drive
hydraulic
for attachments
mean value at operator’s ear Leq 36/48
Ah kWh
Ah kWh
lb kg
HP kW
HP kW
HP kW
HP kW
type
type
psi bar
dB(A)
lead-acid
900
31.2
700
32.4
1650
750
8.2/n/a
6.1/n/a
8.2/11.6
6.2/8.8
9.6/13.4
7.1/10.0
10.0/14.1 7.5/10.5
mosfet
contactor
2250
155.13
66.3 / 70.8
lead-acid
900
31.2
700
32.4
1650
750
8.2/n/a
6.1/n/a
8.2/11.6
6.2/8.8
9.6/13.4
7.1/10.0
10.0/14.1 7.5/10.5
mosfet
contactor
2250
155.13
66.3 / 70.8
lead-acid
900
31.2
700
32.4
1650
750
9.6/13.4
7.1/10.0
10.0/14.1 7.5/10.5
n/a
n/a
mosfet
contactor
2250
155.13
66.3 / 70.8
NOTE: These specifications assume the use of drive axles, tires and tilt angles specified. Any modification to specifications, or any other combination
of specifications made after the shipment of the truck, requires prior written approval from Mitsubishi Caterpillar Forklift America Inc. (“MCFA”). (See ASME
B56.1 Part II 4.2.) Also be advised that overall operating visibility may be affected by the mast configuration and mast options of your truck. Therefore,
you may need to add ancillary [auxiliary] devices or modify your operating practices. Consult your dealer for further information.
EC20K
4000
24
EC25K
2000
500
5000
24
electric
cushion
2x/2
EC25KE
2500
500
5000
24
electric
cushion
2x/2
2500
500
EC25KL
5500
24
electric
cushion
2x/2
2500
600
EC30K
6000
24
electric
cushion
2x/2
3000
500
electric
cushion
2x/2
170
4335
170
4335
170
4335
170
4335
188
4745
131
3340
131
3340
131
3340
131
3340
130
3310
5.1
130
5.1
130
5.1
130
5.1
130
5.3
135
1.6x42x3.9 40x1070x100 1.6x42x3.9 40x1070x100 1.6x42x3.9 40x1070x100 1.6x42x3.9 40x1070x100 1.8x42x5 45x1070x125
9.4/32.0
240/818
9.4/32.0
240/818
9.4/32.0
240/818
9.4/32.0
240/818
9.4/32.0
240/818
5/6
5/6
5/6
5/6
5/6
82.0
2085
82.0
2085
86.0
2185
86.0
2185
89.0
2255
41.5
1055
41.5
1055
41.5
1055
43.5
1103
43.5
1103
43.5
1103
43.5
1103
43.5
1103
n/a
n/a
46.0
1168
46.0
1168
46.0
1168
48.0
1218
48.0
1218
83.5
2110
83.5
2110
83.5
2110
83.5
2110
83.5
2110
46.0
1171
46.0
1171
46.0
1171
46.0
1171
46.0
1171
87.0
2210
87.0
2210
87.0
2210
87.0
2210
87.0
2210
180
4570
180
4570
180
4570
180
4570
179
4550
74.5
1890
74.5
1890
78.5
1990
78.5
1990
80.5
2045
15.5
394
15.5
394
15.5
394
15.5
394
16.0
406
90.0
2285
90.0
2285
93.9
2385
93.9
2385
96.7
2455
6.5/7.2
8.6/9.2
61/101
78/120
98/98
98/98
10.5/11.6
13.8/14.8
.31/.51
.40/.61
.50/.50
.50/.50
21
21
24
24
8.0/8.6
12.9/13.8
10.0/10.6 16.1/17.1
63/110
.32/.54
89/130
.45/.65
98/98
.50/.50
98/98
.50/.50
27
28
24
24
10.1/11.6
13.4/14.8
.28/.51
.38/.61
.50/.50
.50/.50
17
18
23
23
7.9/8.5
12.7/13.7
9.8/10.6 15.8/17.1
56/110
.28/.54
74/130
.38/.65
98/98
.50/.50
98/98
.50/.50
25
26
23
23
6.3/7.2
8.3/9.2
56/101
74/120
98/98
98/98
10.1/11.6
13.4/14.8
.28/.51
.38/.61
.50/.50
.50/.50
17
18
24
24
7.9/8.5
12.7/13.7
9.8/10.6 15.8/17.1
56/110
.28/.54
74/130
.38/.65
98/98
.50/.50
98/98
.50/.50
25
26
24
24
6.2/6.9
8.0/9.0
56/101
74/120
98/98
98/98
9.8/11.1
12.9/14.5
.28/.51
.38/.61
.50/.50
.50/.50
16
16
24
24
7.9/8.5
12.7/13.7
9.8/10.6 15.8/17.1
56/110
.28/.54
74/130
.38/.65
98/98
.50/.50
98/98
.50/.50
24
25
24
24
9.8/10.8
12.6/14.2
.26/.42
.36/.52
.50/.45
.50/.45
15
15
21
21
7.3/8.3
11.7/13.4
9.3/10.4 15.0/16.7
49/93
.25/.47
70/130
.36/.55
98/88
.50/.45
98/88
.50/.45
23
24
21
21
8100
10500
1600
3400
4750
9200
12600
1650
3675
5600
9000
12300
1740
3650
5400
9400
13100
1890
3550
5900
10400
14100
2290
3725
6700
3700
4950
750
1540
2150
6.3/7.2
8.3/9.2
56/101
74/120
98/98
98/98
4200
5900
780
1670
2525
4100
5800
820
1660
2440
4275
5900
870
1610
2675
6.1/6.7
7.8/8.8
51/82
70/102
98/88
98/88
4725
6700
1070
1680
3050
21x7x15 533x178x381
21x7x15 533x178x381
21x7x15 533x178x381 21x8x15
533x203x381 21x8x15
533x203x381
16x5x10.5 406x127x267 16x6x10.5 406x152x267 16x6x10.5 406x152x267 16x6x10.5 406x152x267 16x6x10.5 406x152x267
50.5
1280
50.5
1280
54.5
1380
54.5
1380
54.5
1380
34.5
875
34.5
875
34.5
875
35.5
900
35.5
900
35.5
900
35.5
900
35.5
900
35.5
900
35.5
900
3.0
76
3.0
76
3.0
76
3.0
76
3.0
77
4.9
124
4.9
124
4.9
124
4.9
124
4.9
124
foot-operated, hydraulic
foot-operated, hydraulic
foot-operated, hydraulic
foot-operated, hydraulic
foot-operated, hydraulic
hand-operated, mechanical hand-operated, mechanical hand-operated, mechanical hand-operated, mechanical hand-operated, mechanical
lead-acid
1400
48.6
1100
50.9
2200
1000
8.3/11.7
6.1/8.7
10.0/14.1 7.5/10.5
12.7/18.3 9.5/13.7
15.1/22.1 11.2/16.5
mosfet
contactor
2250
155.13
66.3 / 70.8
lead-acid
1400
48.6
1100
50.9
2900
1320
8.3/11.7
6.1/8.7
10.0/14.1 7.5/10.5
12.7/18.3 9.5/13.7
15.1/22.1 11.2/16.5
mosfet
contactor
2250
155.13
66.3 / 70.8
lead-acid
1400
48.6
1100
50.9
3100
1410
8.3/11.7
6.1/8.7
10.0/14.1 7.5/10.5
12.7/18.3 9.5/13.7
15.1/22.1 11.2/16.5
mosfet
contactor
2250
155.13
66.3 / 70.8
lead-acid
1400
48.6
1100
50.9
3100
1410
8.3/11.7
6.1/8.7
10.0/14.1 7.5/10.5
12.7/18.3 9.5/13.7
15.1/22.1 11.2/16.5
mosfet
contactor
2250
155.13
66.3 / 70.8
lead-acid
1400
48.6
1100
50.9
3100
1410
8.3/11.7
6.1/8.7
10.0/14.1 7.5/10.5
12.7/18.3 9.5/13.7
15.1/22.1 11.2/16.5
mosfet
contactor
2250
155.13
66.3 / 70.8
14
Call-out numbers
shown in the diagram
below correspond to
the first column of the
specifications chart.
20
11
17
19
18
12
36
35
13
22
32
15
13
13
34 16
33
21
13
23
SAFETY STANDARDS
These trucks meet American Society of Mechanical Engineers (ASME) B56.1, part III Safety Standards for powered industrial trucks.
UL-Classified by Underwriters Laboratories, Inc., as to fire and electric shock hazard only. Types E, EE (optional), Industrial Trucks.
Users should be aware of, and adhere to, applicable codes and regulations regarding operator training, use, operation and
maintenance of powered industrial trucks, including:
• ASME B56.1, part II.
• NFPA 505, fire safety standard for powered industrial trucks - type designations, areas of use, maintenance and operation.
• Occupational Safety and Health Administration (OSHA) regulations that may apply.
Specifications, equipment, technical data, photos and illustrations based on information at time of printing and subject to change
without notice. Some products may be shown with optional equipment.
BATTERY INFORMATION
Model
EC15K
EC18K
EC18KL
EC20K
EC25K
EC25KE
EC25KL
EC30K
Battery Compartment Size
Width
Length
Height
in mm
in mm
in mm
35.7
27.9
23.3
906
708
592
35.7
27.9
23.3
906
708
592
35.7
27.9
23.3
906
708
592
39.5
30.5
23.3
1003
775
592
39.5
30.5
23.3
1003
775
592
39.5
34.4
23.3
1003
875
592
39.5
34.4
23.3
1003
875
592
39.5
34.4
23.3
1003
875
592
35.5
27.8
23.2
903
705
589
35.5
27.8
23.2
903
705
589
39.4
30.4
23.2
1000
772
589
39.4
30.4
23.2
1000
772
589
39.4
34.3
23.2
1000
872
589
39.4
34.3
23.2
1000
872
589
39.4
34.3
23.2
1000
872
589
Maximum Battery Dimensions
Length
Width
Height
in mm
in mm
in mm
35.5
27.8
23.2
903
705
589
Battery Weight
Minimum
Maximum
lb
lb
kg 1650 750 1650 750 1650 750 2200 1000 2900 1320 3100 1410
kg 2650 1200 2650 1200 2650 1200 3310 1500 3530 1600 3970 1800
3100 1410 3100 1410
3970 1800 3970 1800
Battery Specifications
Connector Position
Lead Length
in mm
B
24
B
610
24
B
610
24
B
610
24
B
610
24
B
610
24
B
610
24
B
610
24
610
13
DD
u ra
u ra
b ibliiltiyt yA &
n dS Su up p po or tr t
C a t l i f t t r u c k d e a l e rs p u t
Unlimited Hours Warranty covers parts and labor for one year,
c u s t o m e r n e e d s f i rs t , w i t h
regardless of service hours.
t h e m o s t c o m p re h e n s i ve
c u s t o m e r s u p p o r t p ro g ra m s
Parts Fast or Parts Free Guarantee ensures next-business-day
delivery of parts for all brands of lift trucks or they are free,
i n t h e i n d u s t r y.
including freight.
Free Loaner Service Guarantee provides a lift truck until the
repair is done if your lift truck is not repaired right the first
time and within the quoted time.
Contact your Cat lift truck dealer for complete terms and
conditions of these guarantees.
Cat Lift Trucks offers an extensive range of products
and services. Your Cat lift truck dealer can provide options and
additional visual and audible warning devices geared toward
your specific applications and requirements. Operator training
programs are also available to boost productivity and to help
reduce the potential for product damage and personal injury.
Your Cat lift truck dealer can also provide a variety of financing
and leasing options to suit the needs of your business.
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CATERPILLAR and CAT are registered trademarks
of Caterpillar Inc.
CECM0007-01
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05/02
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