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Oil Lub Piston LER LTR & Oil-Free Piston LFR

Contact a mobility air compressor expert

Compact packages

Much smaller than belt driven equivalent

Trouble-free usage

Corrosion resistant materials like stainless steel and aluminum, ensures years of trouble-free usage

Equipped with load/ unload valves

Atlas Copco hydraulic driven piston compressors come also equipped with load / unload valves to adapt air production independently from the oil supply to the motor

Features and benefits

Thanks to our direct drive concept, our compressors offer compact packages much smaller than belt driven equivalent, while at the same time removing the need for complicated belt replacement. This does however do not compromise the ease of maintenance as all the components needing service are conveniently placed in one location. Using corrosion resistant materials like stainless steel and aluminum, you can rest assured that the compressor will give you years of trouble-free usage.

Our hydraulic driven piston compressors come also equipped with load / unload valves to adapt air production independently from the oil supply to the motor. The capacity of the motor itself can be selected from a wide range to adapt the compressor oil flow and pressure to the size of your oil pump.

Qualities in the details

LER 10-10 H

  1. Optimized fan design for efficient cooling and optimal compressor performance.
  2. Railway qualified vibration dampers for a minimum transfer of vibrations from and to the compressor package.
  3. High performance finned tube inter- and after-cooler.
  4. Load/unload valve with integrated blow- off function and non-return valve for low starting torque and easy control.
  5. Top quality direct drive aluminum compressor block in V-arrangement, for a compact and light-weight installation, high performance and extended lifetime even in the harshest ambient conditions.
  6. High efficiency industrial air intake filter for trouble-free operation.
  7. High efficiency hydraulic motor with superior performance and low noise levels, working even at high hydraulic operating pressures.
  8. Hydraulic connections according to international standards

Technical specifications

Compressor type

Maximum working pressure

Effective working pressure

FAD at effective working pressure and minimum speed of 1200 rpm (40 Hz)

Installed recommended shaft power

FAD at effective working pressure and maximum speed of 1800 rpm (60 Hz)

Installed recommended shaft power

 

bar(e)

psig

bar(e)

l/s

m3/min

cfm

kW

hp

l/s

m3/min

cfm

kW

hp

10 BAR LER

LER 3-10

10

145

7

3.5

0.21

7.5

1.5

2.0

5.1

0.31

10.8

2.6

3.5

LER 5-10

10

145

7

6.7

0.40

14.2

2.9

3.8

9.7

0.58

20.6

4.6

6.2

LER 7-10

10

145

7

9.4

0.56

19.8

4.0

5.3

13.6

0.82

28.8

6.2

8.3

LER 10-10

10

145

7

12.6

0.75

26.6

5.7

7.6

18.2

1.09

38.6

8.6

11.5

10 BAR LFR

LFR 3-10

10

145

7

3.2

0.19

6.8

1.6

2.1

4.6

0.28

9.7

2.3

3.1

LFR 5-10

10

145

7

6.6

0.39

13.9

3.0

4.0

9.1

0.55

19.3

4.3

5.8

LFR 7-10

10

145

7

8.8

0.53

18.6

3.8

5.1

12.0

0.72

25.4

5.8

7.7

LFR 10-10

10

145

7

12.4

0.74

26.3

5.3

7.1

18.2

1.09

38.6

8.6

11.5

15 BAR LTR

LTR 3-15

15

218

12

3.2

0.19

6.8

1.6

2.1

4.7

0.28

10.0

2.5

3.3

LTR 5-15

15

218

12

5.4

11.4

11.4

2.9

3.9

7.9

0.47

16.7

4.5

6.1

LTR 7-15

15

218

12

7.4

0.44

15.6

4.0

5.4

10.9

0.65

23.1

6.3

8.5

LTR 10-15

15

218

12

9.4

0.56

19.8

5.5

7.4

Limited at 1500 rpm

 

 

 

 

20 BAR LTR

LTR 3-20

20

290

15

2.4

0.14

5.1

1.4

1.8

3.8

0.23

8.1

2.2

2.9

LTR 5-20

20

290

15

4.1

0.24

8.6

2.4

3.2

6.4

0.38

13.6

3.7

4.9

LTR 7-20

20

290

15

5.4

0.33

11.5

3.3

4.4

8.5

0.51

18.0

5.1

6.9

LTR 10-20

20

290

15

7.4

0.45

15.8

4.4

5.9

14.0

0.84

29.7

8.0

10.7

30 BAR LTR

LTR 3-30

30

435

20

2.3

0.14

4.9

1.5

2.0

3.6

0.22

7.6

2.4

3.2

LTR 5-30

30

435

20

4.0

0.24

8.5

2.6

3.5

6.3

0.38

13.3

4.1

5.5

LTR 7-30

30

435

20

5.4

0.32

11.4

3.6

4.8

8.4

0.50

17.8

5.6

7.5

LTR 10-30

30

435

20

7.3

0.44

15.4

4.8

6.4

Limited at 1500 rpm

 

 

 

 

Variants

High-pressure compressor variant

  • Two-stage up to 30 bar.
  • Equipped with intercooler for improved efficiency.

Oil-free compressor variant

  • No oil in the compressed air.
  • Environmentally friendly oil-free piston.
  • Less maintenance.

Options

  • Heavy duty inlet filter: For efficient operation in dusty environments and longer maintenance intervals.
  • Railway-qualified vibration dampers: For a minimum transfer of vibrations from and to the compressor and motor.
  • Protection canopy: Protecting the compressor from external particles and to place the compressor outside.
  • Different selection of hydraulic motors: For an optimal balance between the performance of the compressor and the available hydraulic oil flow and pressure.
  • Electric motor: High efficiency, totally enclosed fan-cooled (TEFC), IP 55, class F direct coupled railway-approved electric motor with greased-for-life bearings.