... compressor 1. durable, 2. high-performance, 3. Economical, Atlas Oil-free screw and reciprocating piston compressors up to 40 bar (580 ... tremendous benefits to your bottom line.Customer benefitsCertified 100% oil-free – ZD compressors provide you with 100% pure, clean air that ... in the world to receive such certification on an oil-free compressor.High reliability – The ZD’s reliability is based on ...