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CORMAK LUFT 700 VSD+PM COMPACT/ 500l tank

CORMAK LUFT 700 VSD+PM Compact Rotary Screw Compressor with Dryer – Compact Set for Demanding Applications – ENERGY SAVER

THE SET INCLUDES:

- LUFT 700 VSD+PM COMPACT rotary screw compressor with integrated dryer
- 500 L horizontal compressed air receiver

Key features that distinguish these models:

1. Permanent Magnet Motor Technology (PM)
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Most compressors in the Energy Saver series use Permanent Magnet (PM) motors. Unlike standard induction motors:
- They achieve efficiency levels meeting IE4 or even IE5 standards.
- They maintain high efficiency even at very low speeds (whereas standard motors lose efficiency outside their nominal range).
- They are smaller, lighter, and generate less heat.

2. Advanced Variable Speed Drive Control (VSD)

The core of the Energy Saver line is the frequency inverter (VSD drive):
- Demand-driven operation: The compressor does not work in an 'all or nothing' (load/unload) system. If your equipment requires only 30% output, the compressor reduces speed, consuming proportionally less energy.
- Elimination of idling: Conventional compressors often run for several minutes after the tank is filled, consuming about 25–30% of nominal power without producing air. Energy Saver models almost completely eliminate this inefficient process.

3. Soft Start

Thanks to the VSD, these devices start smoothly from 0 Hz. This means no sudden current spikes during startup, which:
- Protects your plant’s electrical installation.
- Enables more frequent starting and stopping of the machine without the risk of motor winding overheating.

4. Real Energy Savings

In practice, the use of the Energy Saver line can reduce energy bills by 30% to 50% compared to traditional fixed-speed compressors. In addition, the system maintains very stable network pressure (accurate to 0.1 bar), which is crucial for precision machines such as laser cutters. Long service life: The absence of sudden pressure and temperature spikes extends the working life of the screw unit.

Technical Specifications
Motor power: 5.5 kW / 7.5 HP
Voltage: 400V/50Hz
Capacity 0-6 bar: avg. 690 L/min
Capacity at 6 bar: 690 L/min
Capacity at 8 bar: 650 L/min
Capacity at 10 bar: 650 L/min
Outlet connection (G): 1/2"
Dimensions: 1840 x 640 x 1470 mm
Weight: 320 kg

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