Atlas Copco has introduced several new products this year including the all-new XATS 1050 CD7 compressor, the LS and LP Series two-stage compressor and the three-stage ZH 350+.

Replacing the XATS 950, the XATS 1050 CD7 features a new engine, air-end, cooling fan and controller. The engine in the Atlas Copco XATS 1050 CD7 complies with the new emission standards that went into effect in the US, Canada, Japan and Europe in January 2011. The new standards are part of the US EPA Nonroad Regulation Tier 4A and the EU Nonroad-Directive Stage IIIB (Tier 4A / Stage IIIB). This legislation mandates substantial decreases in the emission of particulate matter (PM) and nitrogen oxide (NOx) from off-road diesel engines, and Atlas Copco’s newest compressor meets the new standard.

The new air-end in the XATS 1050CD7 is designed to operate more efficiently than its predecessors. Preliminary testing of the new model indicates that it will significantly reduce fuel consumption. Fuel economy is also improved by the variable-speed cooling fan, which is designed to run only as needed rather than continually.

Emission control is built into the new controller. Unlike some other units, no separate control area is necessary.

LS and LP Series

The two new piston compressor product ranges capitalise on a combination of computer-aided design, computer-controlled machining processes and heavy duty cast iron construction. Their two-stage compressors deliver up to 175 psig with 24/7 reliability.

'Our close customer relationships have allowed us to gain extensive knowledge of a wide variety of processes, needs and objectives,' said Robert Eshelman, VP and business line manager for Atlas Copco’s US Industrial Air Division.

The LS Series two-stage splash-lubricated compressor combines a one-piece aluminum head, which optimises strength and dissipates heat, with an innovative valve design that provides outstanding volumetric efficiency. These features make the LS Standard ideal for industrial, automotive and commercial applications requiring up to 175 psig.

The LP Series two-stage pressure-lubricated compressor produces 175 psig, is rated at 100 per cent duty cycle and features a stainless steel valve design that delivers the highest volumetric efficiency in the marketplace. These features ensure high reliability and energy savings for the most demanding industrial, automotive and commercial applications.

With CFM per brake horsepower, both the LS and LP Series compressors are available in a full-range of horsepower increments from 5-30 horsepower.

The ZH 350+

The three-stage ZH 350+ is the most energy-efficient oil-free compressor ever built at Atlas Copco.

It is the first medium pressure industrial three-stage centrifugal compressor to be commercialised with high-speed motors and without a gearbox. The ZH 350+ is designed for the pharmaceutical, electronics, aviation, automotive and other industries that rely on high-quality, 100 per cent oil-free air. It offers good energy savings as compared to conventional turbo compressors and is aimed at customers who wish to invest in the highest compressor performance in terms of energy efficiency and reliability.

The exclusive design of Atlas Copco’s ZH 350+ (350 kW, 7-8 bar) oil-free high-speed drive centrifugal compressor is the result of intensive R&D and is an in-house innovation success story.

The ZH 350+ is up to 4 per cent more energy-efficient than the company’s top-performing oil-free compressors. According to the company, the new turbo compressor’s extremely low package power consumption is attributable to five key design choices: the three-stage design that achieves high thermodynamic efficiency; the model eliminates the gearbox; it uses titanium impellers, thereby increasing speed and reliability; it has optimally sized coolers that significantly reduce pressure drop; the system blows off before the aftercooler which means minimal compressed air is lost when air demand decreases.