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Atlas Copco GA VSD+ compressor achieves 50% energy savings target for UK’s largest quartz glass fabricator

11 June 2018

After experiencing pressure drops that limited applications within its production facility, Quartztec Europe installed an Atlas Copco GA VSD+ compressor that has increased output, halved annual energy costs and exceeded initial savings estimates by a factor of 19 per cent.

Quartztec Europe is the largest fabricator of quartz glass in the UK and one of the top five in Europe. It undertakes manufacturing for market sectors, such as semiconductors, solar and fibre optics, within its 50,000 sq. ft. purpose-built facility in Kelvin South Business Park, East Kilbride.

In addition to quartz glass production, the company‘s current work force of 41 employees is involved with the manufacture and supply of silicon carbide coated products, thermocouples, and an extensive product range made from advanced ceramic materials produced for the defence, aerospace and automotive industries.

Quartztec Europe is undergoing a significant expansion period involving state-of-the-art equipment and the implementation of new working practices to enable the business to grow. Looking to upgrade its compressed air system to meet the demands of new production machinery being installed, it was evident that the existing air supply was inadequate. If both main air applications - the feed to CNC machining operations or the purpose built sandblast booth - were running simultaneously, the pressure drop was such that it became a question of proceeding in an either/or situation, resulting in unwarranted downtime.

As Quartztec’s Operations Manager, Mark King explains: “Initially, we requested prices for 37 kW Variable Speed Drive compressors from three different companies and Atlas Copco provided a cost for a compressor with over 15 per cent greater output than the other two. Further to this, they explored a number of options to ensure the correct solution was put in place by fitting data loggers free of charge to better understand the requirements of the site.”

King continued: “Eventually, it was found that a 22 kW GA22VSD+ compressor would suffice, as well as saving us over £3,000 (50 per cent) on energy every year. This meant that the compressor system could be paid off within 5 years, whilst providing 100 per cent redundancy to ensure our production is never compromised.”

The enhanced performance of a GA compressor can, in many instances, allow a lower kW rated machine to be installed at a correspondingly smaller purchase price and reduced running cost in comparison to a higher rated machine, as was the case with Quarztec.

Atlas Copco’s GA Variable Speed Drive+ (VSD+) technology automatically adjusts the motor speed to match the compressed air supply to the air demand, thanks to the integral Atlas Copco in-house designed Neos lightweight and compact inverter unit. When combined with the innovative design of the iPM permanent magnet motor, corresponding to IE4 efficiency levels, and a close-coupled drive train, the result produces average energy savings of up to 50 per cent.

Having data logged the new compressors with the new production equipment installed; Atlas Copco reported that the savings would exceed the expected figure by a factor of 19 per cent, thus proving the efficiency of the solution.

Mark King further commented: “Atlas Copco's commitment to providing the optimal solution saved us not only in capital and service costs by identifying the correct size of compressor, but also massive energy savings against our old fixed speed compressor. The installed compressor is exceeding all of our expectations. I would have no hesitation in recommending Atlas Copco as a compressed air partner.”

For more information, please contact:

Atlas Copco Ltd
Swallowdale Lane
Hemel Hempstead
Herts 
HP2 7EA
Tel:  +44 (0) 1442 261201
Fax:  +44 (0) 1442 234791
Email: compressor.sales@uk.atlascopco.com
Web:  www.atlascopco.co.uk
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