... axle 2) oil-injected 3) rotary screw portable compressors 4) 7-12 bar (102-175 ... m3/min Single axle, oil-injected, rotary screw portable compressors, 7-12 bar (102-175 psig) ... or Deutz diesel engines, Atlas Copco’s Series 7 portable compressors are compact, efficient, economical and easy ... heating, site instruments and power tools. All Series 7 models comply with current regulations concerning safety, ...