The absence of diesel emissions, combined with the low noise levels (as low as 61 dB(A)), make the E-Air range the perfect match for underground applications like mining or tunnelling, as air ventilation is a part of their running costs. While the fixed-speed electric compressor needs a start-up current peak, the VSD electric range offers best-in-class versatility.
Efficiency is further aided by the optimal combination of the Variable Speed Drive and permanent magnet motor. Finally, it offers many features that are required in tough environments. A full range of VSD electric compressors will be launched at Bauma 2019.
“ From enhanced efficiency to improved noise levels and no diesel engine emissions, the benefits of going electric within specific applications cannot be overstated. The new Variable Speed Drive electric compressor range is a game changer when it comes to clean drive technology for rough and dusty environments like underground tunnelling and mining. We have the experience to protect your investment in these circumstances. ”
The compressor’s integrated VSD-driven permanent magnet electric motor requires only low power for start-up, so there is no need to oversize the power supply. The Variable Speed Drive and permanent magnet motor also make an important contribution to efficiency. Combined, they offer best-in-class efficiency at partial load. Furthermore, the smart socket system on the E-Air H 250 VSD model provides end users with the flexibility to use the same machine with multiple outlet sockets (63, 32 and 16 Amp).
The absence of diesel emissions is not only relevant with regard to the new Stage V diesel emission regulations. When working in a residential area or an enclosed space such as a subway, tunnel or mine, the E-Air range provides a reliable flow of compressed air without any diesel emissions. This significantly affects the need for air ventilation in any underground application, which comprises a significant part of the running costs when using diesel air compressors. An additional benefit in these environments is the low noise level. The new VSD E-Air H 250 can operate as quietly as 61 dB(A); a lower level than a conversation.
VSD E-Air compressors are smaller and lighter than equivalent diesel air compressors. For instance, the E-Air H 250 weighs less than 750 kg, which means it requires no special driving licence to tow it in Europe. The advantages of using an electric-powered mobile air compressor are clear: there is no need for refuelling, while users benefit from increased autonomy and plug-and-play capabilities. While the electric motors require no servicing, service intervals for the compressor are at a very low level: only once every two years or 2000 hours.
The new VSD E-Air range features Atlas Copco’s PACE system (Pressure Adjusted through Cognitive Electronics). This enables users to control the pressure between 5 and 12 bar, in precise 0.1 bar increments, and thus adjust the flow to the optimal level required for their application. Therefore, one compressor can handle various jobs that previously would have required multiple compressors.
Compared to conventional industrial compressors, Atlas Copco has designed the VSD E-Air range for tough working environments. The compressors come equipped with potted motor windings to prevent dust and water ingression, the proven HardHat canopy (for the VSD E-Air H 250 and 450), an IP65-rated controller, a water-cooled drive (IP67-rated), a single-sheet steel, non-welded undercarriage and three-layer anti-corrosion paint system.
In addition, the standard spillage-free frame offers 110% fluid containment, increasing peace of mind when it comes to possible spillages on site. The VSD E-Air range is also equipped as standard with an after-cooler, providing high-quality air for applications like sandblasting.
These features not only protect an end user’s investment, but also ensure they have a reliable compressed air source for their application. The VSD E-Air range is therefore perfect for back-up applications, temporary extensions of compressed air systems, or to provide reliable compressed air flow when a stationary compressor installation is undergoing maintenance.
For 146 years, Atlas Copco has been innovating with its customers in mind, while focusing on sustainable solutions. By launching a full range of VSD electric mobile compressors, it goes beyond updating the existing diesel air compressor portfolio to comply with the new Stage V diesel emission regulations. Atlas Copco introduced the first mobile electric air compressor in 2016: the fixed-speed E-Air T900. In 2019, Atlas Copco will launch not only two additional fixed-speed electric compressors (the E-Air T400 and the E-Air T500) but also three new VSD electric compressors: the VSD E-Air H 250, the VSD E-Air H 450 and the VSD E-Air V 1100. The full range will cover all air demands from 250 to 1100 cfm.