ABAC ABC5-2112DHP 10 HP Ironman Duplex Air Compressor - 120 Gallon Horizontal, 175 PSI, 32 CFM C1 Cast Iron Pump

The ABAC ABC5-2112DHP Ironman duplex mounts two independent 5 HP motor and pump assemblies on a single 120 gallon horizontal ASME tank. Each side runs a C1 two-stage cast iron pump rated 16 CFM, for 32 CFM combined at a maximum 175 PSI. Because the two assemblies are separate, one can come down for service while the other keeps air on the line, which is the reason most shops step up to a duplex in the first place. It runs on 230V single-phase power.

Key specifications

• Model: ABC5-2112DHP
• Warthog part number: 2020141042
• Power: 10 HP total (2 x 5 HP)
• Pumps: two C1 two-stage pumps, cast iron cylinders
• Air delivery: 32 CFM combined (16 CFM per pump)
• Maximum pressure: 175 PSI
• Tank: 120 gallon horizontal, ASME tank and safety valves
• Power supply: 230/1/60
• Alternating control, so the lead pump rotates and run time is shared
• Fully programmable control panel
• Belt drive with fully enclosed belt guards
• Magnetic starter and discharge valve standard

Why a duplex on single-phase power

A single 10 HP piston compressor normally calls for three-phase service. Splitting the same output across two 5 HP assemblies keeps each motor within what a 230V single-phase supply can carry, which is what puts 10 HP of output within reach of a shop on utility single-phase. Both pumps feed the same receiver, and either side can be isolated for a belt or valve change without shutting the floor down.

What alternating control actually does

ABAC builds the Ironman Duplex range around alternating control, which rotates the lead pump so wear is spread across both assemblies instead of accumulating on one. Through a quiet morning one pump carries the load on its own and the second never starts, so neither side racks up hours it does not need. When every bay is working, both run together and the pair delivers the full 32 CFM. The fully programmable control panel is what sets those parameters, so the changeover point and the cut in and cut out pressures are tuned to how your shop actually draws air rather than left at a factory default.

How it compares

Within the Ironman duplex range the pumps scale with the output. The ABC7 15 HP duplex pairs two 7.5 HP C1 pumps for 42 CFM, the 15 HP ABC7-2112DH2P reaches 52 CFM on C2 pumps, and the ABC10-2312DHP 20 HP duplex steps up to two C2 pumps for 64 CFM on the same 120 gallon horizontal platform. If your service is three-phase and redundancy is not the point, the single pump ABC10-2312HP reaches the same 32 CFM from one C2 pump on the same tank. Size on the CFM your tools actually draw, then confirm the incoming service matches.

Typical applications

ABAC rates the Ironman Duplex range for extensive use, the consistent supply that metal and wood workshops and auto body and repair shops need, and lists agriculture and farm, food and beverage and general industrial work among its applications. On a single-phase floor that means service garages, body shops, small production and fabrication cells, and fleet maintenance bays that need air all day and cannot afford to lose the whole compressor to one failed pump. The 120 gallon horizontal receiver keeps the pumps from short cycling between tool triggers and gives impact wrenches and sanders a reserve to draw on.

Planning the installation

Treat this as two compressors sharing one receiver. Each side runs on its own 230V single-phase circuit sized to its motor nameplate, so size the service to the pair rather than to a single 5 HP machine. Leave clearance down both sides for cooling airflow and for belt guard and pump access, since service on one side happens while the other is still running. Drain the receiver on a schedule or fit an automatic drain, because condensate left standing is what ends a tank's life early.

Air treatment

A piston compressor delivers saturated air, so spray finishing, plasma cutting, and air logic all want drying downstream. At 32 CFM combined the ABAC COOL 35 covers both pumps running together with a little headroom, and it runs on a 115V outlet rather than needing its own three-phase feed. See the rest of our refrigerated air dryers if the line feeds more than this machine.

Part of ABAC's Ironman cast iron range from the Atlas Copco group. Standard features across the two-stage Ironman series include a fully enclosed belt guard, fully cast iron pump design, ASME tank and safety valves, a discharge valve, and a magnetic starter. Splitting demand across two C1 pumps keeps each one running cooler and cuts duty cycle on both, which is what extends pump life in shops where air is drawn all day long. Browse the full range of piston air compressors.