ABAC ABC10-2312DHP 20 HP Ironman Duplex Air Compressor - 120 Gallon Horizontal, 175 PSI, 64 CFM C2 Cast Iron Pump

The ABAC ABC10-2312DHP Ironman duplex mounts two independent 10 HP motor and pump assemblies on a single 120 gallon horizontal tank. Each side runs a C2 two-stage cast iron pump rated 32 CFM, for 64 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. Choose 230V three-phase (ABC10-2312DHP) or 460V three-phase (ABC10-4312DHP).

Key specifications

• Models: ABC10-2312DHP (230V) / ABC10-4312DHP (460V)
• Warthog part numbers: 2020141041 (230V) and 2020141045 (460V)
• Power: 20 HP total (2 x 10 HP)
• Pumps: two C2 two-stage pumps, cast iron cylinders
• Air delivery: 64 CFM combined (32 CFM per pump)
• Maximum pressure: 175 PSI
• Tank: 120 gallon horizontal
• Power supply: 230/3/60 or 460/3/60
• Alternating control, so the lead pump rotates and run time is shared
• Fully programmable control panel
• Belt drive with fully enclosed belt guards

Why two pumps instead of one larger machine

ABAC builds the Ironman Duplex range around alternating control, which rotates the lead pump so wear is spread across both assemblies rather than accumulating on one. That has two practical effects. Through a quiet morning one pump carries the load on its own and the second never starts, so neither assembly racks up hours it does not need. When every bay is working, both run together and the pair delivers the full 64 CFM. A single 20 HP machine covering the same demand swings between loaded and unloaded all day, and when it comes down for a belt or a pressure switch the shop is out of air. Here the second side holds the line up while the first is open.

How it compares

Across the Ironman duplex range the pump size sets the airflow and the tank sets how long the pumps rest between draws. The 10 HP ABC5-2112DHP pairs two C1 pumps for 32 CFM on the same 120 gallon horizontal tank, and the 15 HP ABC7-2112DH2P reaches 52 CFM. The ABC10-2320DHP is this same 64 CFM pair on a 200 gallon receiver, worth the extra floor space where draws are heavy and intermittent. If redundancy is not the point and 32 CFM is enough, the single pump ABC10-2312HP uses the same C2 pump and the same 120 gallon tank.

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 shop floor that means production and fabrication cells, multi bay service centers, welding bays, and fleet maintenance operations where several air tools draw at once and a compressor going down stops everyone. Alternating control also suits a plant whose demand swings widely through the day: one pump carries the quiet hours and the second cuts in when every bay is working, instead of a single large machine short cycling through both.

Planning the installation

Treat this as two compressors sharing one receiver. Each side runs on its own three-phase circuit sized to its motor nameplate, so size the service to the pair rather than to a single 10 HP machine, and confirm the supply voltage before ordering, because the 230V and 460V builds are separate units rather than a field conversion. 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. Two-stage air at 175 PSI carries a shop floor's worth of moisture, so plan a refrigerated dryer downstream of the tank: at 64 CFM combined the 100 CFM ABAC COOL 100 covers the pair with headroom for both pumps running together.

Part of ABAC's Ironman cast iron range from the Atlas Copco group. A duplex pair delivers the output of a larger single machine while spreading run time across two pumps, which keeps each one cooler and shortens recovery under heavy demand. See the rest of our piston air compressors and our full range of air dryers.