ABAC AS-10503BM 10 HP Rotary Screw Air Compressor - Base Mount, 150 PSI, 34.1 CFM, 69 dBA

The ABAC AS-10503BM is the 150 PSI build of the 10 HP base mount machine in the AS-B screw range. It delivers 34.1 CFM at a 150 PSI maximum and runs at 69 dBA, quiet enough to sit in the work area instead of a separate compressor room. The higher pressure setting is the one to specify when a tool, a clamp circuit or a plant header needs more than the usual 125 PSI, or when a long pipe run eats pressure before the air reaches the point of use. Base mount means the unit ships without a receiver, so it plumbs into an air tank you already own or one sized to the job. At 419 lbs in a 32 x 24 x 40 in cabinet it takes roughly the floor space of a two drawer file cabinet. Power is 208-230-460V three-phase.

Key specifications

• Model: AS-10503BM (part number 4152043888)
• Motor: 10 HP, energy efficient
• Air delivery: 34.1 CFM
• Maximum working pressure: 150 PSI
• Noise level: 69 dBA
• Mounting: base mount, no receiver
• Power supply: 208-230-460/3/60
• Weight: 419 lbs
• Dimensions (L x W x H): 32 x 24 x 40 in
• Eco-friendly vertical oil separation technology
• Digital controller with menu driven access for optimizing operating performance
• Brand: ABAC, part of the Atlas Copco group

Why a screw instead of another piston

A piston compressor builds air in bursts and needs time to cool between them. A rotary screw is rated for continuous duty, so it holds a flat line pressure through a full shift instead of sagging and recovering between jobs. That is the reason shops using air most of the day move off a reciprocating machine that is cycling hard, running hot and filling the room with noise. The AS-B air end is built around a state of the art design that limits air loss, and ABAC pairs it with an energy efficient motor and a digital controller, so the operating menus and the service intervals sit on the panel rather than on a clipboard. The trade is that a screw dislikes short cycling, so it wants a receiver sized to its output and a demand pattern that keeps it loaded.

How it compares

Across the AS-B range pressure, airflow and mounting all move independently. The AS-10253BM is the same 10 HP machine set for 125 PSI, trading pressure for airflow at 36.4 CFM in the identical 419 lb cabinet. Stepping down, the AS-7.5501BM gives 27.1 CFM at the same 150 PSI for 360 lbs on the same 32 x 24 x 40 in footprint; stepping up, the AS-15503BM carries 46.4 CFM. If noise matters, the AS-10S503BM is the quieter 10 HP build at 65 dBA and 35.6 CFM on the same pressure setting. If you do not already own a receiver, the same air end comes tank mounted on a 71 gallon tank or a 131 gallon tank, and with an integrated dryer on the 131 gallon build. Buy pressure only to the level your highest tool actually needs, because every step up costs airflow.

Typical applications

Production and fabrication floors, larger automotive and fleet service shops, tire and truck bays, cabinet and woodworking shops, plasma and laser tables, packaging lines, and any operation running tooling or a test rig specified above 125 PSI. At 34.1 CFM it will keep several air ratchets, a sander or a continuous blow off fed through a shift. The base mount build is also the one to buy when you are replacing the compressor on an existing system and keeping the receiver and piping already in place.

What to pair it with

Base mount is the starting point for a modular compressed air system. Size a receiver to your demand rather than to the pipe, give the cabinet clear air on the cooling side, keep it out of a hot corner, and run it on its own circuit sized to the motor nameplate. Oil, oil filter and separator element are the service items, and the digital controller tracks the intervals. Air leaving any screw carries moisture, so if it goes to paint, tires, pneumatic controls or anything that hates water, put a refrigerated dryer behind it. At 34.1 CFM the ABAC COOL 50 gives useful headroom and runs on 115V, so it plugs in beside the compressor without new wiring; the COOL 35 is the minimum size. See the rest of our rotary screw air compressors and the full refrigerated air dryer range. Call us with your tool list and duty cycle and we will confirm receiver sizing, connection sizes and installation clearances before you pipe it in.

CFM measured per ISO 1217 Annex C. Noise measured per ISO 2151:2004 using ISO 9614/2 (sound intensity method).