The industrial compressor LW 720 E is suitable for breathing air applications and for large capacities.
Low speed ensures continuous operation for long service intervals and reduced maintenance costs. The 4-stage compressor block is mounted on a painted steel panel and is designed for maximum operating pressure of 420 bar.
The compressor unit comes fully wired with star/delta start system and includes 2x 2.3 litre breathing air filter console for wall mounting.
Specifications
Electro motor (Standard: 400V, 3 phase, 50Hz)
Painted steel frame (RAL 6026)
Painted steel fan guard (RAL 7004)
Automatic condensate drain
Automatic stop at final pressure
Inclusive a remote control box for wall mounting
Main-, Start/Stop- and condensate test buttons, as well as emergency stop switch
Phase monitoring c/w shut down at wrong direction of rotation
Hour counter
Oil pressure gauge
Intermediate pressure gauges
Oil pressure monitoring c/w auto shut down
High pressure outlet with 1500 mm hose
Motor protection switch
Pressure maintaining and non return valve
All pistons c/w steel piston rings
Low pressure oil pump and filter
Oil- / Water separators in stainless steel
Safety valves after each stage
4 concentric suction/pressure valves
Filling pressure of your choice (200 or 300 bar)
Inclusive 2 x 2.3 l filter console for wall mounting
Breathing air purification in accordance to EN 12021
Options
Auto start system
Oil temperature display with auto shut down
Cylinder head temperature monitoring with auto shut down
0.8 ltr. Prefilter (Enlarged the lifetime of the filter by approx. 5 hours)
Puracon filter monitoring (Auto shut down also available)
ECC control in remote control box
Power cable and plug
Block heating device
420 bar Version
Special voltages / frequencies on request
Technical Data
LW 720 E | |
---|---|
Type: | Air cooled piston compressor |
Capacity [l/min] / [Nm³/h] / [cfm]: | 720 / 43.2 / 25.4 |
Max. Pressure [bar]: | 350 / 420 |
RPM [1/min]: | 1100 |
No of cylinders / No of stages: | 4 / 4 |
Prime mover type: | E-Motor / 400V / 3 Phasen / 50 Hz |
Drive power [kW] with 50 Hz / 60 Hz: | 18.5 / 22.2 |
Cooling air req. [m³/h] with 50 Hz / 60 Hz: | 5550 / 6660 |
Lubrication type: | Oil pump + Splash oil |
Oil capacity [l] / Oil pressure [bar]: | 4.2 / 4.0 (+/- 0.5) |
Operating temperature [°C]: | +5°C to +45°C |
Filter capacity [m³ at +20°C]: | 2400 (approx. 56 h) |
Dimensions W x D x H [mm]: | 1670 x 770 x 1170 |
Weight [kg]: | approx. 600 |
Noise level (measured at 1 m) [dB]: | 88 |