Compressors / Atlas Copco
11 air ends · OIS / GA / Service parts
OIS Series
Oil Injected Screw elements — the workhorse air end family fitted to Atlas Copco GA, C146 and portable compressors. H / K / M frame sizes.
OIS H-03
Compact oil-injected screw element · Atlas Copco H-frame.
Fitment: GA series · reconditioned
OIS K-13
K-frame oil-injected screw air end.
Fitment: GA series · new unit
OIS K-25
K-frame oil-injected screw air end · larger size.
Fitment: GA series · reconditioned
OIS M-05 (C146)
M-frame screw air end for Atlas Copco C146 portable units.
Fitment: C146 portable · reconditioned
GA Airends
Airends packaged for specific GA-series stationary compressors — from the 11 kW GA 11 up to the high-flow GA 608 / GA 710.
GA 11-30 C
Reconditioned airend for GA 11 through GA 30 compressors.
Fitment: GA 11 – GA 30 · reconditioned
GA 50
Screw air end fitted to Atlas Copco GA 50.
Fitment: GA 50 · 50 kW compressor
GA 50 (Alt)
Alternate variant · Turkish market label "Hava Ucu".
Fitment: GA 50 · alternate part number
GA 408–510
Reconditioned airend for GA 408 / GA 510 range.
Fitment: GA 408 – GA 510 · reconditioned
GA 608–710
Reconditioned airend for GA 608 / GA 710 range.
Fitment: GA 608 – GA 710 · reconditioned
Service Part Numbers
OEM service replacement airends identified by Atlas Copco part number — fitment confirmed on inquiry.
About Atlas Copco
New and reconditioned OEM air ends for Atlas Copco GA, C146 and portable compressors. Covering the full OIS element family (H / K / M frames) and GA-packaged airends from the 11 kW GA 11 up to the high-flow GA 710.