Atlas Copco has launched its most advanced, energy-efficient, sustainable and smart rotary screw compressor. With energy savings of 60% over fixed-speed compressors, the GA VSDS is the most energy-efficient, sustainable compressor on the market today. Thanks to its pioneering smart features, the GA VSDS compressor can adapt and optimise its operation for any application ' innovative technology now embodied in Atlas Copco's 22-37kW GA oil-injected screw compressor range.
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Next-generation VSD offers 60% energy savings and smart, flexible operation. The GA VSDS is the third generation of Atlas Copco variable speed drive (VSD) compressors that significantly reduce energy consumption by adjusting their motor speed to the fluctuations in compressed air demand.
When Atlas Copco introduced the technology, a first-generation VSD compressor achieved energy savings of up to 35% compared to a fixed-speed compressor. That number increased to 50% with the company's VSD+ range. Now, the new GA VSDS offers energy savings of 60%.
Together with this unrivalled level of energy efficiency, the GA VSDS also leads the way in sustainability ' the guiding principle of its innovative design. For example, the new unit not only comprises the minimal number of components but is the first compressor to feature an IE5 ferrite-assisted synchronous reluctance motor that does not rely on rare earth materials in its operation.
With Free Air Delivery 21% higher than its fixed-speed counterparts, the VSDS introduces a host of smart features that allow it to adapt and optimise performance to the user's applications, requirements and conditions.
The most important example is the Smart Temperature Control (STC) system, which ensures that the compressor operates with an optimal oil temperature at all times, completely eliminating the risk of condensation while ensuring maximum compression efficiency. The GA VSDS also comes with the all-new Boost Flow Mode, which gives customers the freedom to exceed their compressor's maximum capacity temporarily and safely.
Small and silent, with sound levels as low as 63dB, the GA 22-37 VSDS does not require a compressor room site. It can be installed on the production floor, occupying the minimum footprint thanks to its vertical, compact design.
The GA VSDS concept incorporates industry-leading connectivity features such as the advanced Elektronikon® Touch controller, the EQ2i multiple compressor control (integrated as standard), Smartlink remote monitoring and analysis, and OPC UA integration for connected production environments.
'The new VSDS offers true sustainable innovation,' says Stef Lievens, vice-president of marketing in the Atlas Copco Industrial Air Division. 'As climate change affects us all, Atlas Copco has made sustainable productivity its number-one focus. The GA VSDS set out to meet today's standards but also those of tomorrow. It's a truly transformative compressor for a rapidly changing industry.'
A logistics company that trialled the new GA 37 VSDS compressor reports potential reduction of its compressor CO2 emissions by 60 tonnes per year.
Thanks to the compressor's intelligent optimising features, VSDS customers can save on investment, service and operational cost by installing a lower kW model and still get all the air they need.
Contact Atlas Copco for more information:
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Website: www.atlascopco.com/en-uk/compressors
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A rotary screw compressor uses two rotors (helical screws) to compress air, differing significantly from reciprocating air compressors which utilize pistons. As the screws interlock, they reduce the volume of air, increasing its pressure. This design allows for continuous operation, making rotary screw compressors ideal for applications requiring a constant air supply.
Their benefits? In addition to the efficiency, reliability and versatility, rotary screw air compressors have many other advantages:
Their noise output is low and their physical footprint small. That means you can install them in more places.
Unlike piston compressors, they don't need cool-down periods. This allows them to operate continuously and they do not require a lot of maintenance.
In addition, oil-lubricated rotary screw compressors feature a low oil carry-over of as little as 3 ppm.
Finally, over their expected service life of 10 years or more, you don't have to worry about a loss of capacity.
Now that you've already selected between an oil-injected and an oil-free compressor, the next step is to choose the drive type for your air compressor. Atlas Copco offers rotary screw compressors with belt or gear drives. Belt-driven compressors are cost-effective and easy to install, operate and maintain, ideal for smaller operations. Gear-driven models are quieter and more efficient, suitable for larger, more demanding applications. Their initial investment cost is a little higher. However, because they are more efficient and maintenance free, compressors with gears are less expensive to operate. This will allow you to quickly recoup that higher cost.
Fixed-speed, dual-speed, and variable-speed rotary screw compressors are the common options for various applications.
It is often said the choice between fixed-speed and variable-speed rotary screw air compressors typically depends on your air demand. Fixed-speed compressors run at a constant speed, best suited for applications with steady demand. Variable speed drive (VSD) compressors only when you have fluctuating demand.
Despite such common perceptions, fixed-speed compressors aren't necessarily the ideal choice for constant air demand. VSD compressors are also perfectly capable of handling such scenarios by dynamically adjusting their speed to match air demand, delivering higher efficiency and energy savings for both stable and fluctuating needs. Ultimately, the decision boils down to budget constraints rather than specific application requirements.
A third option exists, offering greater energy efficiency than fixed-speed compressors at a lower investment cost than VSD compressors. Dual-speed technology optimizes free air delivery at any given pressure setting. While it requires a higher initial investment compared to fixed speed, it offers increased flexibility and is well-suited for applications requiring high flow at various pressures.
In conclusion, when considering fixed-speed, dual-speed, and variable-speed rotary screw compressors, a VSD compressor emerges as the superior choice for applications with both variable and steady demand. Its efficiency benefits not only your bottom line but also the environment in the long term.
Selecting the correct size for your rotary screw compressor is crucial. It's essential to consider the required flow of compressed air as the primary factor in sizing. An undersized compressor won't meet your air demands, while an oversized one wastes energy. Atlas Copco's offers a variety of sizes to suit different needs, ensuring efficient operation and energy savings.
Let's take a look at the G 2-7 range, the smallest type of compressor at Atlas Copco. Compared to piston air compressors, which are traditionally used by operations with a limited compressed air demand, they offer many advantages. They are more efficient, which reduces your costs and environmental footprint. Besides, they can run around the clock so they can handle an increased demand better. Finally, fixed-speed rotary screw compressor lower the oil content in your compressed air system, a feature that a reciprocating compressor may struggle to match.
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