Atlas Copco · GA · SINGLE-STAGE ROTARY SCREW
🇸🇪Commercial / Industrial

GA11-125

15 HP · 100% duty · oil-injected screw · 1-stage
AVERAGE PRICE
$18,321
1 retailer
Atlas Copco GA11-125

Atlas Copco GA11-125 is a 15 HP oil-injected rotary screw compressor designed for continuous-duty industrial production. It delivers approximately 55 SCFM at 125 PSI with a 128 PSI maximum, making it the natural step up from the GA5/GA7 for mid-size shops, paint booths, fabrication, and CNC rooms with high air demand. The unit is air-cooled, uses a TEFC motor and V-belt drive, and is controlled by Atlas Copco’s Elektronikon Touch microprocessor. The GA11 FF (Full Feature) variant adds an integrated refrigerated dryer that produces clean dry air at roughly 37-50F pressure dewpoint, eliminating most downstream drying needs. Atlas Copco supports North American customers through a dense factory-authorized dealer network for service, fluids, and parts. The GA-Series is widely considered one of the longest-lived rotary screw platforms on the market, and the airend is covered by an extended warranty under the Package Care program.

HP
15
CFM
55 @ 125 PSI
Duty
100% continuous
Tank size
71 gal
Air output per horsepowerAirflow per motor HP
3.67CFM/HP
Poor 2.8Typical 3.15Good 3.5
Isentropic efficiencyClass median · 1-stage rotary screw
75%
Poor <50Good 70Best 92
Price per cubic foot · minuteVerified retailer price
$282$/SCFM
Good $180Typical $211High $260
PUMP & DRIVE
Stages1-stage screw
Cylinder
Pump RPM
Lubricationoil-injected screw
OilISO 46 synthetic rotary screw fluid
Sump
Pump life
Pump material
Head material
Intercooler
PERFORMANCE
Catalog CFM55 @ 125 PSI
CFM / HP3.67
Cut-in / out
Tank fill
Est. draw13.2 kW
COST & MAINTENANCE
Electric · yearlyEst. $4,727
Maintenance · yearlyEst. $375
ELECTRICAL & FORM
Service
Voltage208/230/460
Amps
Motor
Motor RPM1750 rpm
Control
Starter
Weight848 lb
Form— · 71 gal · 175 PSI tank rating
BUILD & ENVIRONMENT
Air outlet1/2 in NPT
DrainManual ball valve standard
Drain outlet
ASME tankYes
Made in USA
Noise62 dBA
Op. temp40–104 °F
Dimensions
Ship weight
Warranty

Where this sits in the catalog

Histograms below: highlighted bar marks this unit’s bucket.

Catalog
1655 units
Peer class
44 · 15 HP
Sizing & pricevs. 44 in class
  • SCFM @ 15 HP55cfm
    20median 55.571
    -0.8% vs. median
  • Average price$18,321
    $9,196median $14,432$25k
    +26.9% vs. median
Efficiency vs. peersvs. 44 in class
  • CFM per HP3.67cfm/hp
    1.33median 3.734.73
    -1.6% vs. median
  • Price per CFM$282$/scfm
    $153median $251$905
    +12.3% vs. median

Price history

Showing the current verified price for each retailer. As the price-tracking worker collects new readings, dots will appear along each line.

$15,288$16,374$17,460$18,546avg $16,917today-10d-20d-30d
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