The Professional Choice

LOC

Cooling system

OLAER LOC | optimized for industrial use

The LOC cooling system with three-phase AC motor is

optimized for use in the industrial sector. The system is

supplied ready for installation. An integrated

circulation pump makes it possible to cool and treat

the oil in a separate circuit – ofﬂine cooling. The

cooling system is also available with the FX3 ﬁlter unit.

Together with a wide range of accessories, the LOC

cooling system is suitable for installation in most

applications and environments. The maximum cooling

capacity is 45 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

temperature – 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:

• Extended hydraulic system life.

• Extended oil life.

• Increased hydraulic system availability - more

operating time and fewer shutdowns.

• Reduced service and repair costs.

• Maintained high efﬁciency in continuous

operation – the system efﬁciency falls if the

temperature exceeds the ideal working

temperature.

2 www.olaer.com

OLAER | LOC

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.

LOC Cooling System

For industrial use – maximum cooling capacity 45 kW

Lifetime

Cooling capacity

The Professional Choice 3

OLAER | LOC

Clever design and the right choice of

materials and components produce a long

useful life, high availability and low service

and maintenance costs.

Integrated

ciculation pump

produces and even ﬂow with

low pressure pulsations.

Easy to maintain

and easy to retroﬁt in

many applications.

Quiet

fan and fan motor.

Compact design

and low weight.

Cooler matrix

with low pressure drop and

high cooling capacity.

OLAER | LOC

Good things come in small packages…

Characteristics

• Stress-resistant design

• Uniform pore size control layer

• Tapered pore structure

• Epoxy resin bonded ﬁbre matrix with small ﬁbre size

• Anti-static design

Beneﬁts

• Enhanced performance under cyclic ﬂow and pressure conditions

• Maintained efﬁciency during the entire life

• Dirt captured throughout the media depth

• High particles removal efﬁciency

• Minimized static charge generation and electrostatic discharge

Choose the right ﬁlter element:

1. Filter material HP or LP – depends on pressure level,

i.e. the system’s average pressure.

2. The ﬁlter’s ﬂow capacity – the oil ﬂow is

determined by the LOC cooler model, i.e.

current cooling requirement.

3. The length of the ﬁlter element – depends on the

operating viscosity. The pressure drop over the ﬁlter

element is proportional to the viscosity, e.g. oil that

is three times as thick produces a pressure drop that

is three times as high.

Coreless/cageless design

Outer element cage is a permanent part of the

ﬁlter housing.

Beneﬁts: Lighter, environmentally friendly

element for reduced disposal costs and ease of

element change-out.

Proprietary cushion layer

Provides support for the media and

protection from handling.

Beneﬁts: Reliable, consistent per-

formance.

Material

Inert, inorganic ﬁbres securely bonded in a

ﬁxed, tapered pore structure with increase

resistance to system stresses such as cyclic

ﬂow and dirt loading.

Beneﬁts: Improved performance over the ﬁlter

life and more consistent ﬂuid cleanliness.

Ease of element change-out

Corrosion-resistant end caps feature exclusive

Auto-Pull tabs for automatic element

extraction upon opening the housing.

Beneﬁts: Ease of element change-out.

O-ring seal

Prevents contaminant bypassing the ﬁltra-

tion medium under normal operation.

Beneﬁts: Reliable, consistent performance.

Up and downstream mesh layers

Create ﬂow channels for uniform ﬂow

through the ﬁlter.

Beneﬁts: Extended element life for lower

operating costs.

Media substrate support layer

(not shown) Provides support for the

media and aids in drainage ﬂow.

Beneﬁts: Reliable, consistent performance.

Proprietary outer helical wrap

Tightly bonds to each pleat for stability

and strength.

Beneﬁts: Reliable, consistent performance

and resistance to severe operating

conditions.

4 www.olaer.com

30 50 70

100

200

300

Filter material LP

For systems with working pressure

below 200 bar.

Filter material HP

For systems with working pressure

above 200 bar.

Flow

l/min.

Flow

l/min.

cSt

150

300

450

4” LP

4” HP

OLAER | LOC

The Professional Choice 5

Why not clean the oil while cooling it? Equipped with

our ﬁlter unit FX3 the oil will be cleaned in a separate

circuit, an ideal complement to the system ﬁlter. Our

ﬁlter unit FX3 is available as option.

Filter technique

Designing ﬁlter media has traditionally been a

question of balance. By making the medium ﬁner, more

efﬁcient and cleaner, pressure drop and/or

servicable life is sacriﬁced. To get low clean pressure

drop the removal efﬁciency is sacriﬁced. With FX3

ﬁlter media OLAER has improved the ﬁlter’s ability

to maintain ﬂuid cleanliness, while at the same time

increasing ﬂow capacity (reducing pressure drop).

The result is a better and more consistent system

protection, i.e. high ﬂow capacity in a small envelope

size, optimum performance at stages of ﬁlter life, i.e.

optimum performance under cyclic ﬂow and pressure

conditions for consistently cleaner ﬂuid.

The FX3 original ﬁlter gives you constantly cleaner oil, more lasting system protection and greater stability during operation at varying ﬂow and pressure.

The FX3 captures dirt along the whole length of the ﬁlter material and retains efﬁciency throughout its useful life.

The element is easy to replace, it comes out when you unscrew the cover - it couldn’t be simpler.

FX3 Original Filter

element makes difference

FX3

FILTER UNI T

• Compact

• Environment friendly

• Highly efﬁcient

6 www.olaer.com

OLAER | LOC

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”.

The Professional Choice 7

OLAER | LOC

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

OLAER | LOC

8 www.olaer.com

TYPE Nom. oil ﬂow

l/min

Cooling capacity

in kW at EDT 40 °C

Cooling capacity

kW/°C

Acoustic pressure level

LpA dB(A) 1m*

No. of poles/ Capacity

Weight

kg (approx)

LOC 004 - 4 - D - A 20 2.7 0.07 57 4-0.75 23

LOC2 007 - 4 - D - A 20 5.6 0.14 64 4-0.75 30

LOC2 007 - 4 - D - B 40 7.2 0.18 64 4-.075 30

LOC2 007 - 4 - D - C 60 8.0 0.20 65 4-1.50 36

LOC2 007 - 4 - D - D 80 8.4 0.21 65 4-1.50 36

LOC2 011 - 4 - D - A 20 9.2 0.23 70 4-0.75 34

LOC2 011 - 4 - D - B 40 10.4 0.26 70 4-0.75 34

LOC2 011 - 6 - D - C 40 7.6 0.19 61 6-1.10 40

LOC2 011 - 6 - D - D 55 8.8 0.22 61 6-1.10 40

LOC2 011 - 4 - D - C 60 12.0 0.30 70 4-1.50 40

LOC2 011 - 4 - D - D 80 13.2 0.33 70 4-1.50 40

LOC2 016 - 4 - D - A 20 11.2 0.28 74 4-1.50 45

LOC2 016 - 4 - D - B 40 15.6 0.39 74 4-1.50 45

LOC2 016 - 6 - D - C 40 12.4 0.31 64 6-1.10 45

LOC2 016 - 6 - D - D 55 14.0 0.35 64 6-1.10 45

LOC2 016 - 4 - D - C 60 18.0 0.45 74 4-1.50 45

LOC2 016 - 4 - D - D 80 19.6 0.49 74 4-1.50 45

LOC2 023 - 4 - D - B 40 21.2 0.53 77 4-1.50 53

LOC2 023 - 6 - D - C 40 16.8 0.42 67 6-1.10 53

LOC2 023 - 6 - D - D 55 18.4 0.46 67 6-1.50 53

LOC2 023 - 4 - D - C 60 24.4 0.61 77 4-2.20 62

LOC2 023 - 4 - D - D 80 26.8 0.67 77 4-2.20 62

LOC 033 - 6 - A - D 55 26.0 0.65 74 6-2.20 92

LOC 033 - 4 - A - C 60 32.0 0.80 85 4-3.00 76

LOC 033 - 4 - A - D 80 34.8 0.87 85 4-3.00 76

LOC 044 - 6 - A - D 55 34.0 0.85 77 6-2.20 98

LOC 044 - 4 - A - C 60 40.0 1.00 86 4-3.00 85

LOC 044 - 4 - A - D 80 44.8 1.12 86 4-3.00 85

Technical speciﬁcation

• LOC is designed primarily for synthetic oils, vegetable

oils and mineral oil type HL/HLP in accordance with

DIN 51524. Maximum oil temperature 100 °C.

• Maximum negative pressure in the inlet line is 0.4 bar

with an oil-ﬁlled pump. Maximum pressure on the

pump’s suction side is 0.5 bar.

• Maximum working pressure for the pump is 10 bar.

For information about suction height, pressure, etc.

see the QPM3 pump manual.

Heat transfer tolerance ± 6 %

3-PHASE MOTOR

3-phase asynchronous motors in accordance with IEC 60034-1

Nominal voltage *

Insulation class F

Rise of temperature B

Protection class IP 55

Recommended ambient temperature -20 °C - +40 °C

MATERIAL

Pump housing/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

FX3 FILTER UNIT (option) Aluminum

The ﬁlter housing has a built-in bypass valve, pre-set

pressure 4.5 ± 0.3 bar.

CONTACT OLAER FOR ADVICE ON

• Oil temperatures > 100 °C

• Oil viscosity > 100 cSt

• Aggressive environments

• Ambient air rich in particles

• High-altitude locations

* = Electric motors speciﬁed are calculated for max. working pressure 6 bar at 125 cSt and 50 Hz, 4 bar at 125 cSt and 60 Hz.

If you require higher pressure, please contact us for a choice of motors with a higher output.

** = Noise level tolerance ± 3 dB(A).

* = See separate instructions for electric motor.

The Professional Choice 9

OLAER | LOC

TYPE

A B C D E F G H I J K L Mø

LOC 004 - 4 - D - A 267 134 135 284 73 G1 420 90 164 163 488 58 9

LOC2 007 - 4 - D - A 365 203 105 395 42 G1 510 160 215 225 558 50 9

LOC2 007 - 4 - D - B 365 203 105 395 42 G1 510 160 215 225 571 50 9

LOC2 007 - 4 - D - C 365 203 105 395 42 G1 510 160 215 225 620 50 9

LOC2 007 - 4 - D - D 365 203 105 395 42 G1 510 160 215 225 633 50 9

LOC2 011 - 4 - D - A 440 203 103 470 41 G1 510 230 252 249 582 50 9

LOC2 011 - 4 - D - B 440 203 103 470 41 G1 510 230 252 249 595 50 9

LOC2 011 - 6 - D - C 440 203 103 470 41 G1 510 230 252 249 643 50 9

LOC2 011 - 6 - D - D 440 203 103 470 41 G1 510 230 252 249 657 50 9

LOC2 011 - 4 - D - C 440 203 103 470 41 G1 510 230 252 249 644 50 9

LOC2 011 - 4 - D - D 440 203 103 470 41 G1 510 230 252 249 657 50 9

LOC2 016 - 4 - D - A 496 203 107 526 46 G1 510 230 285 272 640 50 9

LOC2 016 - 4 - D - B 496 203 107 526 46 G1 510 230 285 272 653 50 9

LOC2 016 - 6 - D - C 496 203 107 526 46 G1 510 230 285 272 665 50 9

LOC2 016 - 6 - D - D 496 203 107 526 46 G1 510 230 285 272 678 50 9

LOC2 016 - 4 - D - C 496 203 107 526 46 G1 510 230 285 272 665 50 9

LOC2 016 - 4 - D - D 496 203 107 526 46 G1 510 230 285 272 678 50 9

LOC2 023 - 4 - D - B 580 356 104 610 40 G1 610 305 322 287 668 50 14

LOC2 023 - 6 - D - C 580 356 104 610 40 G1 610 305 322 287 722 50 14

LOC2 023 - 6 - D - D 580 356 104 610 40 G1 610 305 322 287 722 50 14

LOC2 023 - 4 - D - C 580 356 104 610 40 G1 610 305 322 287 709 50 14

LOC2 023 - 4 - D - D 580 356 104 610 40 G1 610 305 322 287 722 50 14

LOC 033 - 6 - A - D 692 356 99 722 32 G1¼ 610 406 378 318 754 70 14

LOC 033 - 4 - A - C 692 356 99 722 32 G1¼ 610 406 378 318 727 70 14

LOC 033 - 4 - A - D 692 356 99 722 32 G1¼ 610 406 378 318 741 70 14

LOC 044 - 6 - A - D 692 356 99 866 49 G1¼ 610 584 450 343 779 70 14

LOC 044 - 4 - A - C 692 356 99 866 49 G1¼ 610 584 450 343 750 70 14

LOC 044 - 4 - A - D 692 356 99 866 49 G1¼ 610

584 450 343 762 70 14

OLAER | LOC

10 www.olaer.com

EXAMPLE:

LOC2 - 011 - 6 - A - C - L - 50 - S20 - D - E0 - 0

1 2 3 4 5 6 7 8 9 10/11 12

1. TYPE OF COOLING SYSTEM = L0C / LOC2

2. COOLER SIZE

004, 007, 011, 016, 023, 033, 044

3. NUMBER OF POLES, MOTOR

4 - pole = 4

6 - pole = 6

4. VOLTAGE AND FREQUENCY

Three-phase 220-240/380-420 V 50 Hz* = A

Three-phase 440-480 V 60 Hz* = B

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 LOC 033 to LOC 044

** = for LOC 004 to LOC2 023

5. PUMP SIZE

Displacement 15 cm

/r = A

Displacement 30 cm

/r = B

Displacement 45 cm

/r = C

Displacement 60 cm

/r = D

Special = X

6. BYPASS VALVE, PUMP

No bypass valve = O

Built-in bypass valve, 5 bar internal = L

Built-in bypass valve, 10 bar internal = H

Built-in bypass valve, 5 bar external = K

Built-in bypass valve, 10 bar external = M

7. THERMO CONTACT

For temperature alarm, not for direct control of electric motor.

No thermo contact = 00

40 °C = 40

50 °C = 50

60 °C = 60

70 °C = 70

80 °C = 80

90 °C = 90

8. 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 valid for LOC 004

9. MATRIX GUARD

No guard = 0

Stone guard = S

Dust guard = D

Dust and stone guard = P

10. FX3 FILTER UNIT

(sizing, see page 4)

No ﬁlter unit = 0

Filter unit with 4” element HP = A

Filter unit with 4” element LP = B

Filter unit with 8” element HP = E

Filter unit with 8” element LP = F

11. PRESSURE DROP INDICATOR

No pressure drop indicator. = O

Visual pressure drop indicator with manual reset. = D

Visual pressure drop indicator with thermo

guard and manual reset. No signal below 0 °C,

signal above +29 °C. = P

Electric pressure drop indicator with automatic reset.

Connection in accordance with DIN 43650

ISO 4400 (Hirschmann) IP 65. = M

Electric pressure drop indicator

with 2-pole AMP contact. = U

12. STANDARD/SPECIAL

Standard = O

Special = Z

SPARE PARTS

The information in this brochure is subject to change without prior notice.

Key for LOC and LOC2

cooling systems

All positions must be ﬁlled in when ordering

Part number Description

58920102 Filter element 04” HP

58920103 Filter element 04” LP

58920302 Filter element 08” HP

58920303 Filter element 08” LP

589310 O-ring for ﬁlter housing cover

The Professional Choice 11

OLAER | LOC

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

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.