Energy-efficient solutions for compressed air and vacuum
The economical, oil-free compressors of type ZE 5-6 (photo, p. 29) are now also available with air cooling. Especially suitable for low-pressure applications (up to about 4 bars), they are commonly used in processing of powder and bulk solids. All machines are available with an integrated frequency inverter to adjust the flowrate to meet the the demand. The range of the series (ZE 2 to 6) have motors with power ranging from 37 to 500 kW, delivering flowrates of 350 to 7,200 Nm3/h. The direct-drive of the ZE machines is said to achieve a much higher efficiency than belt-driven compressors, and their oil-cooled, double-element block saves energy. With air cooling, no cooling-water connection is required, which simplifies installation. Hall 3, Stand 524 — Atlas Copco Kompressoren und Drucklufttechnik GmbH, Essen, Germany