While ease of use, versatility and low maintenance cost remain some of the main criteria that portable compressors must meet for rental companies, of increasing importance are also low-emissions and low-noise. Earlier this year, Sweden-based Atlas Copco released its mobile electric variable speed drive (VSD) compressor range designed for tough environments and low emissions zones. Due to the lack of exhaust fumes and noise levels as low as 61 dB(A), the E-Air range – from 7 up to 31m3/min – is also suitable for underground applications. The compressors require low power to start up due to the integrated VSD-driven permanent magnet electric motor. Hendrik Timmermans, Vice President of Atlas Copco’s Portable Air division, said, “The benefits of going electric within specific applications cannot be overstated. The new VSD electric compressor range is a game changer when it comes to clean drive technology for rough and dusty environments like underground tunnelling and mining.” Atlas Copco says that the new VSD E-Air compressors (E-Air 250 pictured) are smaller and lighter than equivalent diesel machines The manufacturer said that the VSD E-Air compressors are smaller and lighter th...