LE/LT oil-lubricated aluminum piston compressors

LE oil-lubricated for single-stage compression

The single-stage oil-lubricated reciprocating compressor allows filtered air to enter both cylinders through the inlet valve. The piston is driven forward through the connection rod attached to the balanced crankshaft. Maximum operating pressure is 10 bar (145psi) and capacities range from 3.4 up to 31.7 l/s at 50 Hz, 8.3 to 79.8 cfm at 60 Hz. Air compressed in the cylinders leaves through the outlet valve when the pressure reaches 10 bar (145psi).

LT oil-lubricated for two-stage compression

The LT two-stage oil-lubricated reciprocating compressor allows filtered air to enter only one cylinder. This low pressure cylinder feeds the second (high pressure) cylinder that can operate at a maximum pressure of 15, 20 or 30 bar (218, 290 or 435 psi) and with the following capacities:

  • 15 bar (218 psi)
    from 3.1 to 11.7 l/s at 50 Hz, 7.6 to 23.1 cfm at 60 Hz.
  •  20 bar (290 psi)
    from 2.1 to 18.0 l/s at 50 Hz, 5.7 to 44.3 cfm at 60 Hz.
  • 30 bar (435 psi)
    from 2.5 to 17 l/s at 50 Hz, 6.6 to 41.7 cfm at 60 Hz.

Compression temperature is decreased between the two stages for increased compression efficiency.


Advanced control and monitoring
The LZ comes with the Atlas Copco Mk 5 already built in to give you advanced electronic control and monitoring. The one-touch controller is easy to use, optimizing both performance and reliability

High reliability
With an operational lifetime of 20,000 hours, the LZ is a long-term companion. Because the LZ doesn’t use any oil, it will last longer with only minimal service

Absolutely oil-free air
The LZ’s ISO 8573-1 CLASS 0 (2010) certified pump produces unquestionably clean air

LE and LT technical specification

Metric US/Imperial
Capacity FAD l/s 3.1 l/s – 37.2 l/s
Working pressure 10 bar(e) – 30 bar(e)
Installed motor power 1.5 kW – 15 kW
Capacity FAD 7.6 m³/h – 133.8 m³/h