The screw blowers are controlled by an integrated frequency converter. The air compression is 100% oil-free. The integrated frequency converter optimises the energy utilisation resulting from the current requirements in the given pneumatic system. This combination with precise adjustment ensures a high level of efficiency and minimises energy consumption. The blowers can be cascaded and effectively controlled by a higher-level system. The air compression is very smooth and pulsating. Various accessories such as suction filters, non-return valves, inlet and outlet silencers can be integrated in the noise protection cover.

Advantages::

• Direct lossless drive
• 100% oil-free air compression
• Contactless screw synchronization
• Integrated frequency converter
• Continuous power control
• Pressure lubrication of synchronizing wheels and motor with oil
• Operating errors are displayed on the control unit display
• Compact unit with integrated accessories
• Low noise
• Low operating costs
• Pulsation-free air compression
• High efficiency, low energy requirements
• Modern design

The parameters in the table are given for an atmospheric pressure of 1000 mbar abs. and 20°C.