ABAC AS-7.5501TMD7 7.5 HP Rotary Screw Air Compressor - 71 Gallon Tank Mount with Dryer, 150 PSI, 27.1 CFM, 67 dBA

The ABAC AS-7.5501TMD7 is a complete compressed air station in one package: a 7.5 HP rotary screw compressor, a 71 gallon air receiver and a refrigerated dryer, mounted and plumbed as a single factory assembly. It delivers 27.1 CFM at 150 PSI and runs at 67 dBA, quiet enough to sit in the work area instead of a separate compressor room. The whole station weighs 593 lbs and stands on a 60 x 23 in footprint, so it occupies one position against a shop wall where a compressor, a receiver and a standalone dryer would need three. Choose 230V single-phase (AS-7.5501TMD7) or 208-230-460V three-phase (AS-7.5503TMD7).

Key specifications

• Models: AS-7.5501TMD7 (part number 4152044128) and AS-7.5503TMD7 (part number 4152043902)
• Motor: 7.5 HP, energy efficient
• Air delivery: 27.1 CFM
• Maximum working pressure: 150 PSI
• Noise level: 67 dBA
• Mounting: tank mount on a 71 gallon air receiver with integrated refrigerated dryer
• Power supply: 230/1/60 or 208-230-460/3/60
• Weight: 593 lbs
• Dimensions (L x W x H): 60 x 23 x 57 in
• Fully integrated aluminum block air end
• Eco-friendly vertical oil separation technology
• Digital controller with menu driven operation and programmed maintenance
• Brand: ABAC, part of the Atlas Copco group

Why the three in one package

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 the way a piston machine does. The catch is that air leaving any screw comes out hot and saturated, so a dryer is not optional on a system feeding paint, pneumatic controls or precision tools. Buying the compressor, the receiver and the refrigerated dryer as one factory assembly removes the part of the job that usually goes wrong: no separate dryer to size and source, no interconnecting pipe to fabricate, no second set of mounts, and no chance of a dryer undersized for the air end in front of it. The installer lands power and ties into the header. The 71 gallon receiver underneath keeps the screw from short cycling, which is the one duty pattern a screw genuinely dislikes.

How it compares

On identical hardware, pressure and airflow trade directly against each other, and this machine sits at the pressure end of that trade. The AS-7.5251TMD7 is the same 593 lb package set for 125 PSI at 30.5 CFM, so stepping from 125 to 150 PSI costs about 3.4 CFM on the same 7.5 HP motor. Buy pressure only to the level your highest tool actually needs. If drying is already handled elsewhere in the shop, the AS-7.5501TM7 is this same 71 gallon build without the dryer at 507 lbs, and the AS-7.5501BM is the bare base mount at 360 lbs on a 32 x 24 in footprint for a shop that already owns a receiver. For longer runs between stops, the AS-7.5501TMD puts the same 27.1 CFM on a larger receiver at 741 lbs and a 76 x 24 in footprint. Below this machine the AS-5501TMD holds 150 PSI at 17.4 CFM, and above it the three-phase AS-10503TMD7 reaches 34.1 CFM on the same 71 gallon footprint at 653 lbs.

Typical applications

Paint and finishing work, automotive service bays, tire shops, cabinet and woodworking shops, and small production floors where moisture in the air line causes rejects or tool wear. The 150 PSI rating suits shops running impact tooling, clamping fixtures or equipment that calls for more line pressure than a 125 PSI station can hold, and it leaves headroom for a long pipe drop without the pressure at the far end falling below what the tool is rated for. The integrated dryer removes water before it reaches the distribution piping, which matters anywhere air touches a finish, a pneumatic control or a precision tool. At 67 dBA the machine can sit in the work area rather than in a dedicated compressor room, which is often what decides the package over a bare base mount machine.

What to pair it with

Give 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. Confirm your piping, fittings and hose are rated above 150 PSI before you commission it. Oil, oil filter and separator element are the service items, and the digital controller tracks the intervals, so keep a spare set on the shelf. The refrigerated dryer is already fitted, so the remaining air treatment decision is filtration: a particulate and coalescing filter set behind the dryer protects tools and finishes from pipe scale and oil carryover. See the rest of our rotary screw air compressors and the wider Atlas Copco group 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.

Unit performance measured according to ISO 1217 Annex C, with CFM quoted at 138 PSI for 150 PSI maximum units. Noise level measured according to ISO 2151:2004 using ISO 9614/2 (sound intensity method).