Description
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)
- Remote Tab Control – RTC
- 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(A)]: | 88 |
