Air Compressors & Industrial Equipment
Used Atlas Copco GA 55: Sell or Buy at Auction
Atlas Copco is a Swedish industrial equipment manufacturer, one of the world's largest compressor manufacturers alongside its vacuum, power tools, and industrial technique divisions. Atlas Copco rotary screw compressors are a standard in industrial facilities worldwide, known for energy efficiency and reliability.
The Atlas Copco GA 55 is a 55 kW (about 75 hp) oil-injected rotary screw air compressor, the mid-size member of Atlas Copco's GA range. Free air delivery generally falls in the 300 to 360 cfm range depending on the working pressure, with more air available near 100 psi and output tapering as pressure climbs toward 125 psi. It is sized for machine shops, metal fabrication, automotive service, plastics, and general manufacturing that need dependable continuous-duty air without the footprint or utility draw of a plant-wide compressor. Buyers evaluating a used GA 55 look closely at total run hours, whether it is a fixed-speed unit or a GA 55 VSD (variable speed drive) model, whether it is a Full-Feature package with an integrated refrigerant dryer or is tank-mounted, and the depth of the service records. Airend hours, element rebuild history, and oil-analysis logs matter more than nameplate age, and a well-documented unit with clean maintenance history consistently draws stronger bidding. KD Auctions places these compressors in front of a network of 500,000+ industry contacts, where the Atlas Copco name is well recognized and bidders compete with confidence on a unit they already know how to service and support.
Buying a Used GA 55
Manufacturing facilities, assembly plants, automotive shops, food and beverage producers, and any industrial operation requiring compressed air. Atlas Copco's global brand recognition creates active buyer demand internationally.
Browse Upcoming Auctions →Selling Your GA 55
Atlas Copco compressors sell consistently at auction. Strong brand, energy-efficient variable-speed drives in newer models, and global parts availability make them attractive to buyers. Well-maintained units with service records achieve premium results.
Get a Free Consultation →Frequently Asked Questions
What is a used Atlas Copco GA 55 worth at auction?
Value depends on the unit's age, total run hours, condition, drive type (fixed speed versus VSD), and what is packaged with it, such as an integrated dryer or air receiver, so there is no fixed number without inspecting the actual machine. KD Auctions offers a free AMEA-accredited, USPAP-compliant appraisal covering both orderly liquidation value (OLV) and forced liquidation value (FLV), giving sellers a documented, defensible starting point before the compressor goes to market. Commission is tailored to the engagement and quoted upfront, and most sellers pay nothing out of pocket.
How does the GA 55 compare to other Atlas Copco GA compressors like the GA 37 or GA 90?
The GA 55 is a mid-size unit defined by its 55 kW (about 75 hp) motor. It steps up from the 37 kW (about 50 hp) GA 37 and sits below the 90 kW (about 125 hp) GA 90, so it delivers noticeably more air than a GA 37 while drawing far less power than a GA 90. That middle position makes the GA 55 a common primary or backup air source for mid-size plants, which is why used units tend to attract interest from a wider range of facility sizes than compressors at either end of the GA lineup.
About Atlas Copco
Atlas Copco is a Swedish industrial equipment manufacturer, one of the world's largest compressor manufacturers alongside its vacuum, power tools, and industrial technique divisions.
View all Atlas Copco models →