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Welcome to 
ACOI, Inc.
An Engineering & Equipment Provider in energy industry
Located in San Diego, California, ACOI, Inc. is mainly engaged in the field of complete set and application of large power equipment, such as engine and compressor sets, large gas, and diesel engine equipment etc. We have rich experiences and engineering achievements in various  CAT equipment series and engineering applications of power systems, for instance, pump set driven by a gas engine, compressor set driven by a diesel engine and large generator set etc. Meanwhile, we focus on technology development and application of clean energy, energy-saving, and emission-reduction, and renewable energy, such as pump-down technology by a mobile compressor, wind power, solar power and large energy storage by a lithium-ion battery as well. We have lots of experience in industrial application, automation control system, industrial field bus, system design, and integration. At current, our business focuses on oil and gas and renewable energy sectors. We can provide engineering design and consulting services, equipment packaging services for the international project, and international trade and corresponded technical support in this field.















What We Can Do For You


In a business of large generator set, we can provide a whole solution and turn-key to client’s project, customizing our designs according to client’s specific conditions and process in order to maximize client’s demand. We were certified with quality management system ISO 9001. We strictly follow up industrial standards of NEC, IEC, IEEE, ASME and API for packaging all of our equipment. We are able to offer a more efficient, cost-effective, reliable and complete solution to the client, we strive hard for quick services to the client as well.



Our combined strengths allow us to better serve our domestic and worldwide customers in the electric power, mining, industrial, oil and gas markets for all their generator set, pump packaging, and air compressor needs.





Our Business Principles in Practice


Fair                    Knowledgeable


Loyal                  Positive Work Ethic


Empathy            Teamwork


Integrity              Friendly


Respect             Sincere


Flexible              Reliable




The Brands in Our Product Lines:





TRUCK ENGINES: Caterpillar






TRANSFER SWITCHES AND SWITCHGEAR: Caterpillar, ASCO, Olympian, Russelectric, Zenith


GENERATOR ENDS: Caterpillar, ABB, Kato


RADIATORS: Ameri-Cool, Fuzzy Radiator, GTI, IEA, LandM Radiator Inc., Young Touchstone


CONTROL PANELS: Caterpillar, ComAp, Custom Power Products, F.W. Murphy, Metron, Wagner Power


UPS: Caterpillar/Active Power, Toshiba, Others


ELECTRIC MOTORS: Reliance, Siemens, Others


PUMPS: Bornemann, Flowserve, Gardner Denver, ITT/Goulds, National Oil Well, Peerless Pumps, Sulzer Bingham, Pumping Accessories


COMPRESSORS: Kaeser, Quincy, Sullair, Plus Hoses and Accessories


EXHAUST SYSTEMS AND EMISSION CONTROLS: Altronic, DME, Emit, Engine Emission Control Corp., Silex, Maxim, Mechanical Equipment


CLUTCHES AND GEARBOXES: Amarillo, Cotta, Falk, Flender, Lufkin, PneuGrip Air Clutch, RJ Link, Twin Disc, WPT Air Clutch


OTHER RELATED PRODUCTS: Loadbanks, Wire and Cable, Distribution Panels, Pipe, Valves and Fittings, Mist Pumps, Boosters, Foam Units, Trailers

































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