Message to the seller of this Atlas Copco ZT 37 VSD. Oil-lubricated air compressor Atlas Copco AustraliaĪtlas Copco ZT 37 VSD: 2010: 8.6 bar 125 psi: 37 kW 50 hp: 5 m3/min 177 CFM 83 liter/sec: Belgium: Atlas Copco ZT 45: 1999: 7.5 bar 109 psi: 45 kW 60 hp: 6 m3/min 212.