The drive design of the ZR 90-160 VSD+ incorporates Atlas Copco?s most sophisticated variable speed drive (VSD) technology: NEOS drives combined with permanent magnet motors. The dual motor concept with a smart control algorithm allows both elements to be run at different speeds, which optimises efficiency.

?By adjusting output to match actual needs, the ZR 90-160 VSD+ significantly cuts energy consumption, costs and environmental impact,? said Jeroen Hoen, Product Manager, Oil-free Compressors. ?The internal IP66 water-cooled permanent magnet motors, designed for class-leading efficiency and high reliability, contain oil-lubricated bearings for a long maintenance-free lifetime. Moreover, all service parts are grouped together for ease of access for a minimal service time.?