The Professional Choice
LAC
With AC motor
OLAER LAC | optimized for industrial use
The LAC air oil cooler with single-phase or three-phase
AC motor is optimized for use in the industrial sector.
Together with a wide range of accessories, the LAC
cooler is suitable for installation in most applications
and environments. The maximum cooling capacity
is 300 kW at ETD 40 °C. Choosing the right cooler
requires precise system sizing. The most reliable way
to size is with the aid of our calculation program. This
program, together with precise evaluations from our
experienced, skilled engineers, gives you the
opportunity for more cooling per € invested.
Overheating - an expensive problem
An under-sized cooling capacity produces a temperature
balance that is too high. The consequences are poor
lubricating properties, internal leakage, a higher risk
of cavitation, damaged components, etc. Overheating
leads to a significant drop in cost-efficiency and
environmental consideration.
Temperature optimisation - a basic prerequisite
for cost-efficient operation
Temperature balance in a hydraulic system occurs when
the cooler can cool down the energy input that the
system does not consume - the system’s lost energy
(Ploss = Pcool = Pin – Pused).
Temperature optimisation means that temperature
balance occurs at the system’s ideal working temp-
erature – the temperature at which the oil’s viscosity
and the air content comply with recommended values.
The correct working temperature produces a number of
economic and environmental benefits:
• The hydraulic system’s useful life is extended.
• The oil’s useful life is extended.
• The hydraulic system’s availability increases –
more operating time and fewer shutdowns.
• Service and repair costs are reduced.
• High efficiency level maintained in continuous
operation – the system’s efficiency falls if the
temperature exceeds the ideal working tempera-
ture.
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OLAER | LAC
Olaer is a global player specialising in innovative, efficient system solutions for temperature optimisation and energy storage.
All over the world, our products are working in the most diverse environments and applications.
LAC Air Oil Coolers
For industrial use – maximum cooling capacity 300 kW
Lifetime
Cooling capacity
OLAER | LAC
Clever design and the right choice
of materials and components produce
a long useful life, high availability and
low service and maintenance costs.
Compact design
and low weight.
LAC air oil coolers are also available in two special versions, LAC-X (ATEX version), approved for applications where
there may be an explosive environment above ground, and LAC-M, adapted to be able better to deal with corrosion
attacks, for example in marine environments.
LAC-M and LAC-X
Easy to maintain
and easy to retrofit in
many applications.
Quiet
fan and fan motor.
AC motor single-phase for
smaller and three-phase for
larger cooler sizes.
Cooler matrix
with low pressure drop and
high cooling capacity.
The Professional Choice 3
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OLAER | LAC
Calculate the cooling capacity requirement
Enter your values ....
... suggested solution
Cooling
capacity
requirement?
Installed
capacity
Flow?
Pressure?
Pump capacity?
Measure in
your existing
unit
Contact
our
engineers
Theoretical
capacity losses
Choose the right kind of cooler
Optimal sizing produces efficient cooling. Correct sizing
requires knowledge and experience. our calculation
program, combined with our engineers’ support, gives
you access to this very knowledge and experience. The
result is more cooling per € invested.
The user-friendly calculation program can be
downloaded from www.olaer.se
Valuable system review into the bargain
A more wide-ranging review of the hydraulic system is
often a natural element of cooling calculations. Other
potential system improvements can then be discussed
– e.g. filtering, offline or online cooling, etc. Contact us
for further guidance and information.
OLAER’s quality and performance guarantee
insurance for your operations and systems
A constant striving towards
more cost-efficient and environ-
ment friendly hydraulic systems
requires continuous develop-
ment. Areas where we are
continuously seeking to
improve performance include
cooling capacity, noise level,
pressure drop and fatigue.
Meticulous quality and performance tests are conducted
in our laboratory. All tests and measurements take
place in accordance with standardised methods -
cooling capacity in accordance with EN1048, noise
level ISO 3743, pressure drop EN 1048 and fatigue ISO
10771-1.
For more information about our standardised tests, ask
for “OLAER’s blue book – a manual for more reliable
cooler purchasing”.
OLAER | LAC
Better energy consumption means not only less environmental impact, but also reduces operating costs, i.e. more cooling per € invested.
More cooling per €
with precise calculations and our engineers’ support
The Professional Choice 5
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OLAER | LAC
The cooling capacity curves are
based on the inlet oil temperature
and the ambient air temperature.
An oil temperature of 60 °C and an
air temperature of 20 °C produce
a temperature difference of 40 °C.
Multiply by kW/°C for total
cooling capacity.
Pressure drop
bar
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
50 100 150 200 250 300 350 Oil flow
l/min
002
007, 011
033
044
058, 078, 112, 113
Pressure drop
At 30 cSt single-pass
0.40
0.50
0.60
0.70
0.80
50 100 150 200 Oil flow
l /min
Cooling capacity
kW/°C
0
0.10
0.20
0.30
002-2, 1-phase
2.00
2.50
3.00
3.50
4.00
100 200 300 400Oil flow
l /min
Cooling capacity
kW/°C
0.50
1.00
1.50
058-8
033-4
056-8
076-8
078-8
076-6
078-6
112-8
113-8
Cooling capacity
LAC 002 – LAC 023
Cooling capacity
LAC 033 – LAC 113
004-2, 1+3-phase
016-4
007-2, 1-phase
007-2
016-6
016-2
OLAER | LAC
Cooling capacity tolerance ± 10% kW.
The Professional Choice 7
0.40
0.50
0.60
0.70
0.80
50 100 150 200 Oil flow
l /min
Cooling capacity
kW/°C
0
0.10
0.20
0.30
002-2, 1-phase
2.00
2.50
3.00
3.50
4.00
100 200 300 40
0O
il flow
l /min
Cooling capacity
kW/°C
0.50
1.00
1.50
058-8
033-4
056-8
076-8
078-8
076-6
078-6
112-8
113-8
Cooling capacity
LAC 002 – LAC 023
Cooling capacity
LAC 033 – LAC 113
004-2, 1+3-phase
016-4
007-2, 1-phase
007-2
016-6
016-2
OLAER | LAC
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TYPE Acoustic pressure level
LpA dB(A) 1m*
No. of poles/ Capacity
kW
Weight
kg (approx)
LAC 002-2-single-phase 50 2-0.05 4
LAC 003-2-single-phase 61 2-0.05 5
LAC 004-2-single-phase 63 2-0.07 6
LAC 004-2-three-phase 63 2-0.07 6
LAC 007-4-single-phase 65 2-0.08 9
LAC 007-2-single-phase 79 2-0.24 10
LAC2 007-4-three-phase 62 4-0.25 15
LAC2 007-2-three-phase 79 2-0.55 16
LAC2 011-4-three-phase 67 4-0.25 20
LAC2 011-2-three-phase 82 2-1.10 25
LAC2 016-6-three-phase 60 6-0.18 23
LAC2 016-4-three-phase 70 4-0.37 24
LAC2 016-2-three-phase 86 2-1.10 27
LAC2 023-6-three-phase 64 6-0.18 35
LAC2 023-4-three-phase 76 4-0.75 36
LAC 033-6-three-phase 74 6-0.55 45
LAC 033-4-three-phase 84 4-2.20 52
LAC 044-6-three-phase 76 6-0.55 63
LAC 044-4-three-phase 85 4-2.20 65
LAC 056-8-three-phase 73 8-0.55 73
LAC 056-6-three-phase 81 6-1.50 75
LAC 056-4-three-phase 84 4-2.20 75
LAC 058-8-three-phase 74 8-0.55 80
LAC 058-6-three-phase 82 6-1.50 82
LAC 058-4-three-phase 85 4-2.20 82
LAC 076-8-three-phase 79 8-1.10 130
LAC 076-6-three-phase 86 6-2.20 140
LAC 078-8-three-phase 80 8-1.10 136
LAC 078-6-three-phase 87 6-2.20 146
LAC 110-8-three-phase 84 8-2.20 160
LAC 110-6-three-phase 90 6-5.50 170
LAC 112-8-three-phase 85 8-2.20 168
LAC 112-6-three-phase 91 6-5.50 178
LAC 113-8-three-phase 80 8-2.20 218
LAC 113-6-three-phase 88 6-5.50 237
LAC 200-8-three-phase 86 8-4.00 365
LAC 200-6-three-phase 92 6-11.00 405
OLAER | LAC
TYPE
A B C D E F G H I J K L
M
ø
LAC 002-2-single-phase 155 74 68 186 - G½ 186 72 99 92 153 37 9
LAC 003-2-single-phase 210 134 68 223 73 G1 145 90 118 112 225 27 9
LAC 004-2-single-phase 250 134 68 259 66 G1 145 90 131 117 230 27 9
LAC 002-2-three-phase 250 134 68 259 66 G1 145 90 131 117 230 27 9
LAC 007-4-single-phase 340 203 64 343 52 G1 267 160 213 135 252 56 9
LAC 007-2-single-phase 340 203 64 343 52 G1 267 160 213 135 252 56 9
LAC2 007-4-three-phase 365 203 64 395 42 G1 510 160 213 225 429 50 9
LAC2 007-2-three-phase 365 203 64 395 42 G1 510 160 213 225 434 50 9
LAC2 011-4-three-phase 440 203 62 470 41 G1 510 230 250 249 453 50 9
LAC2 011-2-three-phase 440 203 62 470 41 G1 510 230 250 249 475 50 9
LAC2 016-6-three-phase 496 203 66 526 46 G1 510 230 278 272 474 50 9
LAC2 016-4-three-phase 496 203 66 526 46 G1 510 230 278 272 479 50 9
LAC2 016-2-three-phase 496 203 66 526 46 G1 510 230 278 272 496 50 9
LAC2 023-6-three-phase 580 356 63 610 44 G1 510 305 320 287 489 50 9
LAC2 023-4-three-phase 580 356 63 610 44 G1 510 305 320 287 511 50 9
LAC 033-6-three-phase 692 356 53 722 42 G1¼ 510 406 376 318 534 50 9
LAC 033-4-three-phase 692 356 53 722 42 G1¼ 510 406 376 318 618 50 9
LAC 044-6-three-phase 692 356 53 866 59 G1¼ 510 584 448 343 559 50 9
LAC 044-4-three-phase 692 356 53 866 59 G1¼ 510 584 448 343 643 50 9
LAC 056-8-three-phase 868 356 49 898 43 G1¼ 510 584 448 343 643 50 9
LAC 056-6-three-phase 868 508 49 898 43 G1¼ 510 584 464 368 668 50 9
LAC 056-4-three-phase 868 508 49 898 43 G1¼ 510 584 464 368 668 50 9
LAC 058-8-three-phase 868 508 49 898 43 G2 510 584 464 388 652 30 9
LAC 058-6-three-phase 868 508 49 898 43 G2 510 584 464 388 682 30 9
LAC 058-4-three-phase 868 508 49 898 43 G2 510 584 464 388 688 30 9
LAC 076-8-three-phase 1022 518 41 1052 45 G1½ 800 821 541 393 693 70 14
LAC 076-6-three-phase 1022 518 41 1052 45 G1½ 800 821 541 393 710 70 14
LAC 078-8-three-phase 1022 518 41 1052 45 G2
800 821 541 413 713 50 14
LAC 078-6-three-phase 1022 518 41 1052 45 G2 800 821 541 413 730 50 14
LAC 110-8-three-phase 1185 600 54 1215 45 G2 800 985 623 418 785 70 14
LAC 110-6-three-phase 1185 600 54 1215 45 G2 800 985 623 418 785 70 14
LAC 112-8-three-phase 1185 600 54 1215 45 G2 800 985 623 438 805 50 14
LAC 112-6-three-phase 1185 600 54 1215 45 G2 800 985 623 438 805 50 14
LAC 113-8-three-phase 1200 600 82 1215 45 G2 860 985 623 465 833 82 14
LAC 113-6-three-phase 1200 600 82 1215 45 G2 860 985 623 465 871 82 14
LAC 200-8-three-phase
Please contact Olaer for more information
LAC 200-6-three-phase
OUTLET
(With by-pass type S)
The Professional Choice 9
OLAER | LAC
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EXAMPLE:
LAC2 - 016 - 6 - A - 50 - T20 - D - 0
1 2 3 4 5 6 7 8
1. AIR OIL COOLER
WITH AC MOTOR = LAC / LAC2
2. COOLER SIZE
002, 003, 004, 007, 011, 016, 023, 033, 044,
056, 058, 076, 078, 110, 112, 113 and 200.
3. NUMBER OF POLES, MOTOR
2 - pole = 2
4 - pole = 4
6 - pole = 6
8 - pole = 8
4. VOLTAGE AND FREQUENCY
No motor = 0
Three-phase 220-240/380-420 V 50 Hz* = A
Three-phase 440-480 V 60 Hz* = B
Single-phase 230 V 50/60 Hz** = C
Three-phase 220-240/380-420 V 50 Hz 440/480 V 60 Hz*** = D
Three-phase 500 V 50 Hz = E
Three-phase 400/690 V 50 Hz 440-480 V 60 Hz = F
Three-phase 525 V 50 Hz = G
Motor for special voltage (stated in plain language) = X
* = for LAC 033 to LAC 113, ** = contact Olaer for frequency 60 Hz
*** = for LAC 007 to LAC 023
5. THERMO CONTACT
No thermo contact = 00
40 °C = 40
50 °C = 50
60 °C = 60
70 °C = 70
80 °C = 80
90 °C = 90
6. COOLER MATRIX
Standard = 000
Two-pass = T00
Built-in, pressure-controlled bypass, single-pass
2 bar = S20
5 bar = S50
8 bar = S80
Built-in, pressure-controlled bypass, two-pass*
2 bar = T20
5 bar = T50
8 bar = T80
Built-in temperature and pressure-controlled bypass, single-pass
50 °C, 2.2 bar = S25
60 °C, 2.2 bar = S26
70 °C, 2.2 bar = S27
90 °C, 2.2 bar = S29
Built-in temperature and pressure-controlled bypass, two-pass*
50 °C, 2.2 bar = T25
60 °C, 2.2 bar = T26
70 °C, 2.2 bar = T27
90 °C, 2.2 bar = T29
* = not for LAC 002 - LAC 004
7. MATRIX GUARD
No guard = 0
Stone guard = S
Dust guard = D
Dust and stone guard = P
8. STANDARD/SPECIAL
Standard = O
Special = Z
Technical specification
FLUID COMBINATIONS
Mineral oil HL/HLP in accordance with DIN 51524
Oil/water emulsion HFA, HFB in accordance with CETOP RP 77H
Water glycol HFC in accordance with CETOP RP 77H
Phosphate ester HFD-R in accordance with CETOP RP 77H
MATERIAL
Cooler matrix Aluminum
Fan blades/hub Glass fibre reinforced polypropylene/
Aluminum
Fan housing Steel
Fan guard Steel
Other parts Steel
Surface treatment Electrostatically powder-coated
TECHNICAL DATA, COOLER MATRIX
Maximum static operating pressure 21 bar
Dynamic operating pressure 14 bar*
Heat transfer limit ± 6 %
Maximum oil inlet temperature 120 °C
* Tested in accordance with ISO/DIS 10771-1
TECHNICAL DATA FOR 3-PHASE MOTOR
3-phase asynchronous motors in accordance with IEC 34-1 and
IEC 72 in accordance with DIN 57530/VDE 0530
Insulation class F
Rise of temperature B
Protection class IP 55
TECHNICAL DATA FOR 1-PHASE MOTOR
Insulation class B
Rise of temperature B
Protection class IP 44
TECHNICAL DATA FOR 3-PHASE MOTOR LAC 004
Rated voltage 230/400V 50/60 Hz
Insulation class B
Rise of temperature B
Protection class IP 44
COOLING CAPACITY CURVES
The cooling capacity curves in this technical data sheet are based on tests in accor-
dance with EN 1048 and have been produced using oil type ISO VG 46 at 60 °C.
CONTACT OLAER FOR ADVICE ON
Oil temperatures > 120 °C
Oil viscosity > 100 cSt
Aggressive environments
Ambient air rich in particles
High-altitude locations
The information in this brochure is subject to change without prior notice.
Key for LAC and LAC2
air oil coolers
All positions must be filled in when ordering
OLAER | LAC
With our specialist expertise, industry knowledge and advanced technology,
we can offer a range of different solutions for coolers and accessories to meet your requirements.
Supplementing a hydraulic system with a cooler, cooler accessories and an accumulator gives you increased availability
and a longer useful life, as well as lower service and repair costs. All applications and operating environments are unique.
A well-planned choice of the following accessories can thus further improve your hydraulic system. Please contact
Olaer for guidance and information.
Take the next step
- choose the right accessories
Pressure-controlled
bypass valve Integrated
Allows the oil to bypass the cooler matrix if the
pressure drop is too high. Reduces the risk of
the cooler bursting, e.g. in connection with
cold starts and temporary peaks in pressure
or flow. Available for single-pass or two-pass
matrix design.
Temperature-controlled
bypass valve Integrated
Same function as the pressure-controlled
by–pass valve, but with a temperature-controlled
opening pressure - the hotter the oil, the
higher the opening pressure. Available for
single-pass or two-pass matrix design.
Thermo contact
Sensor with fixed set point. For temperature
warnings, and for more cost-efficient
operation and better environmental
consideration through the automatic switching
on and off of the fan motor.
Stone guard/Dust guard
Protects components and systems from
tough conditions.
Lifting eyes
For simple installation and relocation.
Temperature-controlled
3-way valve External
Same function as the temperature-controlled
bypass valve, but positioned externally.
Note: must be ordered separately.
The Professional Choice 11
The Professional Choice
www.olaer.com
- in Fluid Energy Management
Global perspective
and local entrepreneurial flair
Olaer is a global player specialising in innovative,
efficient system solutions for temperature optimisation
and energy storage. Olaer develops, manufactures and
markets products and systems for a number of different
sectors, e.g. the aircraft, engineering, steel and
mining industries, as well as for sectors such as oil and
gas, contracting and transport, farming and forestry,
renewable energy, etc.
All over the world, our products operate in the most
diverse environments and applications. One constantly
repeated demand in the market is for optimal energy
storage and temperature optimisation. We work at a
local level with a whole world as our workplace – local
entrepreneurial flair and a global perspective go hand
in hand.
Our local presence, long experience and a wealth of
knowledge combine with our cutting-edge expertise
to give you the best possible conditions for making a
professional choice.
Copyright © 2010 OLAER - The information in this brochure is subject to change without prior notice.
