ABAC AS-15503BM 15 HP Rotary Screw Air Compressor - Base Mount, 150 PSI, 46.4 CFM, 69 dBA

The ABAC AS-15503BM is a 15 HP base mount rotary screw air compressor for shops that have outgrown a piston unit and need steady air through a full shift. It delivers 46.4 CFM at a 150 PSI maximum and runs at 69 dBA. Base mount means the unit ships without a receiver, so you plumb it into an air tank you already own or size a tank to the job. At 478 lbs in a 37 x 28 x 40 in cabinet it keeps the footprint small enough to sit near the point of use. Power is 208-230-460V three-phase.

Key specifications

• Model: AS-15503BM (part number 4152043913)
• Motor: 15 HP
• Air delivery: 46.4 CFM
• Maximum pressure: 150 PSI
• Noise level: 69 dBA
• Mounting: base mount, no receiver
• Power supply: 208-230-460/3/60
• Weight: 478 lbs
• Dimensions: 37 x 28 x 40 in
• Fully integrated aluminum block air end with vertical oil separation technology
• Energy efficient motor and digital controller with programmed maintenance
• Brand: ABAC, part of the Atlas Copco group

CFM measured per ISO 1217 Annex C. Noise measured per ISO 2151:2004 using ISO 9614/2.

Why a screw instead of another piston

A rotary screw is rated for 100 percent duty, so it holds line pressure through a full shift instead of recovering between jobs. That is the reason to move off a piston machine that is cycling hard, running hot and filling the room with noise. The AS-B air end is a fully integrated aluminum block with vertical oil separation, paired with an energy efficient motor and a controller that handles programmed maintenance, so the service schedule sits on the panel rather than on a clipboard.

How it compares

Pressure and flow trade against each other on the same machine. This 150 PSI unit moves 46.4 CFM, against 52.1 CFM on the AS-15253BM at 125 PSI and 41.7 CFM on the AS-15753BM at 175 PSI, all three in the same 478 lb cabinet. Choose 150 PSI when your tools or process genuinely call for it at the point of use rather than at the compressor. Across the HP range the AS-10503BM gives 34.1 CFM at the same pressure and the AS-20503BM gives 54 CFM. If you do not already own a receiver, the AS-15503TM puts the same air end on a tank at 776 lbs, and the AS-15503TMD adds an integrated dryer at 871 lbs.

Typical applications

Production and fabrication floors, automotive and fleet service bays, tire and truck shops, cabinet and woodworking shops, and any operation where a reciprocating compressor is working too hard to hold line pressure. At 46.4 CFM it will carry several bays of air tools, a plasma table, or a blast or finishing setup without the pressure sagging when a second operator pulls a trigger.

What to pair it with

Base mount is the starting point for a modular compressed air system. Size a receiver to your demand and pipe it downstream of the compressor, then add moisture control if the air goes to paint, tires or anything that hates water. At 46.4 CFM the ABAC COOL 50 refrigerated air dryer is the matching size at 50 CFM, and it runs on 115V so it plugs in beside the compressor. See the rest of the 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.