ABAC AS-10S503TM 10 HP Rotary Screw Air Compressor - 131 Gallon Tank Mount, 150 PSI, 35.6 CFM, 65 dBA

The ABAC AS-10S503TM is the 150 PSI build of the quiet, higher output 10 HP machine in the AS-B range, delivered on a 131 gallon air receiver as one assembled package. It gives 35.6 CFM free air delivery at a 150 PSI maximum and runs at just 65 dBA, about 4 dBA below the standard AS-10 air end and quiet enough to stand on the shop floor near the point of use instead of being walled into a compressor room. Because the air end and the tank ship together as a factory assembly, installation comes down to setting it in place, landing power and tying into the header. Power is 208-230-460V three-phase.

Key specifications

• Model: AS-10S503TM (part number 4152043919)
• Motor: 10 HP, energy efficient
• Air delivery: 35.6 CFM free air delivery
• Maximum working pressure: 150 PSI
• Noise level: 65 dBA
• Mounting: tank mount on a 131 gallon air receiver
• Power supply: 208-230-460/3/60
• Weight: 750 lbs
• Dimensions (L x W x H): 76 x 27 x 62 in
• Fully integrated aluminum block air end
• Three stage vertical oil separation, low oil carryover
• Intuitive digital controller with programmed maintenance
• 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 running 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 a fully integrated aluminum block with three stage vertical oil separation, which keeps oil carryover and air loss low across long duty cycles, and the digital controller tracks running hours and service intervals so the maintenance is scheduled rather than discovered. The 131 gallon receiver underneath does the other half of the job: it gives the compressor somewhere to put short bursts of demand, which keeps the screw off the one duty pattern it genuinely dislikes, short cycling.

How it compares

Across the 10S air end, pressure and flow trade directly against each other on identical hardware, and 150 PSI is the middle setting of the three. The AS-10S253TM is the same 750 lb package set for 125 PSI at 39.8 CFM, and the AS-10S753TM runs 175 PSI at 29.9 CFM. Going from 125 to 175 PSI costs roughly 10 CFM on the same 10 HP motor, so buy pressure only to the level your highest rated tool actually needs. Against the standard air end, the AS-10503TM on the same tank gives 34.1 CFM at 150 PSI and 69 dBA, so the 10S adds about 1.5 CFM and takes roughly 4 dBA out of the room. If you already own a receiver, the AS-10S503BM is the bare base mount cabinet at 454 lbs on a 37 x 28 x 40 in footprint. If you want the drying built in rather than piped in later, the AS-10S503TMD is this same machine with a refrigerated dryer fitted, at 844 lbs on the same footprint. And if 35.6 CFM is short of your tool list, the AS-15503TM holds 150 PSI at 46.4 CFM.

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. The 150 PSI rating suits shops running impact tools, presses or clamping equipment that need margin above the common 125 PSI setting once line losses down a long pipe run are accounted for. At 65 dBA the machine can sit in the work area rather than in a dedicated compressor room, which is often what decides the 10S over the standard air end when the compressor shares a room with the people using it.

What to pair it with

Air leaving any rotary screw is hot and saturated, so plan on drying it before it reaches your piping, tools or finishing work. This build ships without a dryer, so either step up to the TMD version above or add a refrigerated dryer downstream, sized above the compressor's output rather than equal to it so it still performs at summer inlet temperatures: the ABAC COOL 50 is the natural match for a 35.6 CFM machine. Behind the dryer, a particulate and coalescing filter set protects tools and finishes from pipe scale and oil carryover. Leave the cabinet about 3 feet of 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 controller tracks the intervals, so keep a spare set on the shelf. See the rest of our rotary screw air compressors, or 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.

Unit performance measured according to ISO 1217 Annex C; for 10S to 20 HP machines CFM figures are quoted at free air delivery. Noise level measured according to ISO 2151:2004 using ISO 9614/2 (sound intensity method).