At the latest edition of the International Technical Fair in Hannover, CompAir presented its upgraded range of screw compressors - the models L30, L37 and L45, respectively equipped with the electric motors of 30, 37 and 45 kW - rated power. The new one in these models is the standard use of the highest-end electric motors in terms of energy efficiency - IE4.
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http://www.kammarton.com/image/data/CompAir_new_frame_3.pdf