Quincy QT-7.5 80 Gallon Two-Stage review
Quincy's 7.5 HP, 80-gallon QT Pro, rated at 22.6 CFM even at 175 PSI. It's heavy (about 720 lb) and built for daily commercial use.
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Full specifications
| Noise rating | Not published |
|---|---|
| Noise source | — |
| CFM at 90 PSI | — |
| CFM at 40 PSI | — |
| CFM at max pressure | 22.6 @ 175 PSI |
| Max PSI | 175 |
| Tank | 80 gal |
| Horsepower | 7.5 HP |
| Pump | Oil-lubricated |
| Stages | Two-stage |
| Power | 240V circuit |
| Duty cycle | — |
| Weight | 720 lb |
| Price band | $1,500+ (checked October 18, 2026) |
A dash means the manufacturer doesn't publish that figure. We never estimate one.
Our take
The QT-7.5 is the 80-gallon, 7.5 HP version of Quincy's QT line. Quincy rates it at 22.6 CFM at 175 PSI, which is a demanding test point. Output at 90 PSI will be higher, but Quincy doesn't publish that figure.
It draws around 40 A on single-phase 230V and listings recommend an 80 A breaker, so get an electrician involved.
This is a strong commercial choice, but its Amazon listing has very few buyer reviews, so we place it after the Ingersoll Rand 2475N7.5.
Pros
- 22.6 CFM at 175 PSI
- Splash-lubricated cast-iron two-stage pump
- Very heavy-duty construction
Cons
- Few Amazon buyer reviews so far
- No published 90 PSI or noise figure
What it can run
With a 30% safety margin, its 22.6 CFM rating at 175 PSI (a conservative stand-in, since output at 90 PSI is higher) comfortably covers these tools from our list (nailers assumed at 30 shots a minute):
- Ingersoll Rand 231C 1/2" Impact Wrench (4.2 CFM average)
- Ingersoll Rand 2235TiMAX 1/2" Impact Wrench (6 CFM average)
- Ingersoll Rand 2135QXPA 1/2" Impact Wrench (5 CFM average)
- AEROPRO A398 1/2" Aluminum Impact Wrench (6.5 CFM average)
- Metabo HPT NT50AE2 18-Gauge Brad Nailer (0.025 cu ft per shot)
- Metabo HPT NR90AES1 Framing Nailer (0.09 cu ft per shot)
- Ingersoll Rand 170G 3/8" Air Ratchet (3 CFM average)
- Ingersoll Rand 3101G 1/4" Die Grinder (3 CFM average)
- Ingersoll Rand 119MAXK Air Hammer Kit (2.9 CFM average)
- AEROPRO R500 LVLP Spray Gun (3.9 CFM average)
Who it's for, and who should skip it
Best for: High-output 80-gallon rated at full pressure.
Buy it if: you run air tools for long stretches in a shop; you run impact wrenches, ratchets or spray guns in bursts.
Skip it if: you need to work indoors or near people without hearing protection; you don't have, or can't install, a 240V circuit.
How it compares in its class
- Ranked #3 of 4 in 80 gallon.
- No published noise rating, unlike 1 of the 4 models in that list.
- Price band $1,500+; see every spec side by side in the comparison table.
Ownership tips
- Drain the tank after each use (daily on a shop compressor) to stop rust from the inside.
- Check the oil level before use and change it on the schedule in the manual, using non-detergent compressor oil.
- Have an electrician install a dedicated 240V circuit sized to the motor, and anchor the tank on a level floor.
- Test the safety relief valve now and then by pulling its ring briefly, and never adjust or plug it.
General guidance; always follow the owner's manual. More in our maintenance checklist.
Quincy QT-7.5 80 Gallon Two-Stage: quick answers
How loud is the Quincy QT-7.5 80 Gallon Two-Stage?
The manufacturer doesn't publish a noise rating, so we can't place it on our decibel scale. Treat it as typical for its class.
What can the Quincy QT-7.5 80 Gallon Two-Stage run?
With a 30% safety margin it covers Ingersoll Rand 231C 1/2" Impact Wrench, Ingersoll Rand 2235TiMAX 1/2" Impact Wrench, Ingersoll Rand 2135QXPA 1/2" Impact Wrench, AEROPRO A398 1/2" Aluminum Impact Wrench, Metabo HPT NT50AE2 18-Gauge Brad Nailer, Metabo HPT NR90AES1 Framing Nailer, Ingersoll Rand 170G 3/8" Air Ratchet, Ingersoll Rand 3101G 1/4" Die Grinder, Ingersoll Rand 119MAXK Air Hammer Kit, AEROPRO R500 LVLP Spray Gun from our tool list, based on 22.6 CFM at 175 PSI.
Is the Quincy QT-7.5 80 Gallon Two-Stage oil-free?
No. It has an oil-lubricated pump, so check the oil level before use and change it on schedule.
What power does the Quincy QT-7.5 80 Gallon Two-Stage need?
It needs a dedicated 240V circuit. Have a licensed electrician size and install it to match the motor's nameplate.
Spec sources
Where each figure on this page comes from (checked October 18, 2026). We don't present manufacturer figures as our own measurements.
- compressorpros.com: CFM @ max PSI, max PSI, pump type
- Amazon product listing: tank, horsepower, stages
- fergusonhome.com: weight
Alternatives to consider
Ingersoll Rand 2475N7.5 Two-Stage
dB not published · 24.3 CFM @ 90 PSI · $1,500+
Heavy production air for busy shops
Campbell Hausfeld XC802100 80 Gallon Two-Stage
dB not published · 11.9 CFM @ 90 PSI · $600–$1,500
Most affordable 80-gallon two-stage
Appears in: 80 gallon · Two-stage · Industrial