High-Efficiency Oil-Free Compressor A Low-Friction Design Provides Effective Compression Over the Full Turndown Range

Editor: Dominik Stephan

The new oil-free Comp-Air Ultima compressor offers up to 12 % improved energy efficiency compared to a conventional two-stage machine, as well as a 37 % smaller footprint, says the manufacturer Comp Air (a Gardner Denver brand).

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The new Comp-Air Ultima compressor with lower energy consumption.
The new Comp-Air Ultima compressor with lower energy consumption.
(Source: Gardner Denver)

For applications that demand the highest levels of air quality and purity, the water-cooled technology removes the gearbox and single motor associated with conventional variable-speed machines. Instead, it uses two U-Drives powered by two separate inverters with each air end stage driven directly and independently, for even greater performance.

An intelligent digital gearbox design then monitors and adjust the speeds of each air end continuously, ensuring optimal efficiency and pressure ratios at all times. In addition, the design of the compressor effectively reduces friction, resulting in an oil-free compressor with high efficiency throughout its full turndown range. With a noise level of only 69 dB(A), other benefits include a 12 % better overall heat recovery than standard two-stage oil-free compressors and a reduced energy consumption of 45 % compared to conventional two-stage models.

The company will also be exhibiting its S-Series scroll compressor. With its compact design, and low noise operation, the S-Series should be ideally suited to ensure full protection from contamination and to meet the demands of sensitive environments, the manufacturer says.

The parent company Gardner Denver will also showcase the Robuschi Robox Lobe EL 55-2C, a rotary lobe blower that can be used for special gas handling in the process industry as well as customised vacuum solutions for ‘wet’ systems by Gieffe. Elmo Rietschle will be showcasing its range of Atex-approved vacuum and pressure solutions, including the C-VLR Zephyr claw vacuum pumps, with capacities ranging from 60 to 6,000 m³/h and maximum continuous vacuum up to 100, 150 and 200 mbar (abs).

All activities by Gardner Denver will be bundled under the motto of 'Oneair' as a single source provider of industrial air solutions for the chemical engineering and process industry. The aim is to offer customers a simplified relationship, which can result in reduced lead times, lower administration costs and more straight-forward servicing agreements, speakers stated.

Gardner Denver, Hall 8.0, Stand J39