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Quincy QT Pro 5- HP 80-Gallon Two-Stage Air Compressor (230V 1-Phase)
Model:
451CS80VCB
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Recommended Accessories

Expert Recommended Accessories
Selected by Melissa, our Expert
Required Accessories
1
These accessories are required to properly setup/install this product.
Quincy Maintenance Kit For QT Splash-Lubricated 5-HP & 7.5-HP Electric & Gas Powered Air Compressors
Model: EWK-3
Frequency
Frequency
Select how often you will receive your air filters, we offer many options to meet your air quality standards.
Quantity
Quantity
This will be how many filters you receive per delivery.
Quantity
$299.00
In-Stock
Optional Accessories
5
Model: 21999-0177
$109.80
In-Stock
$135.00
Factory-Direct
Model: QMF-25
$252.00
Factory-Direct
$295.00
Factory-Direct
Model: 4102001905
$3,020.00
Factory-Direct
Features
Grade
Commercial
Voltage
230 Volt AC
Phase
1-Phase
CFM
17.2
Tank Size
80
- 100% Duty Cycle Splash Lubricated Two-Stage Air Compressor
- Engineered for efficiency and lower operating costs
- Produces more compressed air at a lower horsepower
- American Pride; Proudly built in U.S.A.
- High Performance Cast Iron QT-5 Belt Drive Pump
- Industry-leading 50,000+ hour pump life
- Aluminum head for strength and optimum heat dissipation
- Stainless-steel, corrosion resistant reed valves with controlled lift for maximum efficiency
- 2-Cylinder Cast-Iron Design
- Cast-iron cylinders maintain rigid tolerances for high efficiency
- Industrial-class bearings ensure extended piston life
- Graphite cylinder and head gaskets for positive sealing and improved performance
- Large Balanced Cast Iron Fly Wheel
- Smoother operation, angled for maximum cooling
- Offers better energy efficiency and durability
- Balanced counter-weighted crankshaft assures smooth, trouble-free operation
- High-Efficiency Finned Tube Intercooler
- Provides maximum cooling & increased valve life
- Eliminates carbon build up in the head and increases valve life
- 2-piece connecting rods for less moving parts & minimized downtime
- Heavy-Duty Industrial Motor
- Capacitor start motor with built-in thermal overload
- Runs at a slower RPM, runs cooler and cost less to operate
- UL & CSA approval on all electrical components
- 1-Year Factory Warranty - Extends To 3-Year "No Bull" Warranty
- Must Include purchase of EWK-3 Maintenance Kit at time of purchase
- Unit must be registered at www.quincycompressor.com
- Download the Warranty page under the Manual tab for details
- Extended warranty includes on-site and labor service
- Quincy Part #: 2020039802 - Quincy Model #: 251CS80VCB23
California residents see
Warning: This product can expose you to chemicals including Lead which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov
Specifications
451CS80VCB

General Information
Product Category
Air Compressor - Stationary
Engine
HP
5
Motor
Voltage
230 Volt AC
Phase
1-Phase
Magnetic Starter
Magnetic Starter
The Magnetic Starter is the "thinking cap" for the motor of the air compressor. Magnetic starters are electromagnetically operated switches that provide a safe method for certain motors to be started under a large motor load.
Yes
Amp Draw
28
Recommended Breaker
60 Amp Breaker
Pump
CFM
CFM
Cubic Feet Per Minute, which indicates the compressor's flow rate - or the amount of air that a compressor can produce at a given pressure level. Typically compressors that have higher CFM ratings are able to provide more air, which makes them ideal for larger applications
17.2
CFM Rated @
175 PSI
Pump Material
Cast Iron w/ Aluminum Head
Max PSI
Max PSI
PSI, or Pounds Per Square Inch, measures the amount of pressure placed on a square inch of space. In compressor terms, PSI is the amount of force that an air compressor can deliver
175 PSI
Oil Sight Glass
Yes
Pump Type
Two-Stage
After Cooler
After Cooler
An aftercooler is a mechanical heat exchanger designed to remove the heat and moisture of compression from a compressed air stream so the air is cool and dry enough for use in air-operated equipment. A compressed air aftercooler has three primary functions: Cool the air discharged from the air compressor
No
Pump Drive
Belt Drive
Oil Type
Oil Lubricated
Oil System
Splash Lubricated
Pump Low Oil Shut-off
Pump Low Oil Shut-off
Prevents the air compressor from operating or restarting without an adequate amount of oil in the compressor
No
Tank
Tank Size
80 Gallons
Tank Outlet
3/4 Inch
Electronic Drain Valve
Electronic Drain Valve
The inexpensive and reliable electric drain valve (EDV) automatically removes condensate from your air system. It has an integral strainer to prevent clogging and saves time and money by eliminating the need for manual draining
No
Tank Orientation
Vertical
Accessories
Air Dryer
No
Overview
Product Category
Air Compressor - Stationary
Weight
680 Pounds
Certification
ASME. UL, CSA
Consumer Warranty
1 Year
Commercial Warranty
1 Year
Product Length
37 Inches
Product Width
24 Inches
Product Height
74 Inches
Power Type
Electric
UPC
791326111968
Additional Model Numbers
251CS80VCB, 451CS80VCB
Reviews
(5)
Quincy 451CS80VCB Reviews & Ratings

Good Compressor
By Steven C.
Nebraska
Purchased 02/26/2024 |
Review Posted 04/14/2024
First impressions of this compressor: There are some runs in the paint. I don't know what process is used, powder coat or air spray or what, but the orange peel is so bad I wonder if they are trying for a crinkle finish. The brass fittings were painted which is a waste as the paint won't stick and is coming off. The compressor has a heavy duty double pulley, but the motor only has a single drive sheave. Why used a double pulley if it isn't needed? Or if it IS needed, why wasn't a double sheave installed on motor? There are no flat washers on any of the mounts. I am a firm believer in using washers or flange bolts to spread the load out. There is no lifting brackets and it was tough to get moved into position. Since the water drain tube is directly under the tank (where it needs to be) I had to be very careful when using a spud bar to skid the unit in position. Owners manual is as good as not having anything at all. And the app I downloaded is pretty useless. The belt guard rattle like crazy but not a big issue to get that fixed. No off/on switch but that's not a big deal since it does come with a starter, so simple enough to wire a toggle in. I imagine that is standard for all compressors as most customers install a switchbox next to the compressor. The ball valve is tucked under the motor mount. Can't see it and is a little hard to get to because of how I had to install the compressor in a corner of my shop. Probably not an issue for most customers.
All of that is minor stuff that does not affect the operation. The compressor looks to be very heavy duty. The motor is a Baldor Industrial, good choice. It's very quiet! And it only takes 7 minutes to pump up to 175 pounds on the 80 gallon tank. Delivery was fast, had some issues with the carrier but that's not Quincy's or Air Compressors Direct fault. I thought it was a good price for a good compressor.
I expect to get years of trouble free service out of this unit. Overall I am pleased with this unit.
All of that is minor stuff that does not affect the operation. The compressor looks to be very heavy duty. The motor is a Baldor Industrial, good choice. It's very quiet! And it only takes 7 minutes to pump up to 175 pounds on the 80 gallon tank. Delivery was fast, had some issues with the carrier but that's not Quincy's or Air Compressors Direct fault. I thought it was a good price for a good compressor.
I expect to get years of trouble free service out of this unit. Overall I am pleased with this unit.
Steven C. Recommends This
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Rating Breakdown
4/5
4/5
4/5
4/5
Pros:
Price, I39d Buy It Again, Durable, Quiet
Cons:
Bad Instructions

American Made Product
By Terry W.
Manchester, Tennessee
Purchased 12/29/2021 |
Review Posted 03/23/2022
I needed to replace an old Delta that no parts were available for. I shopping I found all the lesser priced compressors were not American made or were assembled with non-domestic parts. The reviews on those products were very negative. My compressor arrived in good condition, works very well and the staff helped me with a question I had about wiring the contactor. So far, I couldn't be happier.
Terry W. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Durable, Features, Quiet, High Quality

Great Compressor With Zero Factory Support!
By Valerie R.
Phoenix, Arizona
Purchased 04/20/2021 |
Review Posted 05/19/2021
Great compressor, came damaged with 2 of the 4 feet bent up from a rough trip to Az, but we refused shipment based on the recommendation from the FedEx driver. The second one was delivered promptly damage-free. I had a question as the manual described an on-off switch which is nonexistent, I emailed Quincys support line to ask about it, never received a reply. Very disappointed about that. I also question the need for 100 hours of open break-in time, which is described in the manual, that just be a mistake. It is the quietest compressor I have ever owned and am so far happy with it!
Valerie R. Recommends This
Was this review helpful?
Rating Breakdown
3/5
5/5
5/5
5/5
Pros:
Quiet
Cons:
Bad Instructions

This Compressor Is The Wrong Color!
By Robin W.
Englishtown, New Jersey
Purchased 12/31/2020 |
Review Posted 02/27/2021
I am finishing the installation at this time, the one thing that disappointed me was the fact that I installed 100'-0'' of the copper airline and spent a good amount of time painting the piping to match the compressor, only to be blindsided with a dark blue compressor, I shopped for this compressor for two months before I brought it and all the compressors I had looked at were median blue w/a smooth glossy Finish, not the dark blue w/crinkle finish, no one will explain why the color change? but I will close with this statement with, It was like ordering a john deere tractor and having them deliver a red one instead of green. Will need to get back to you on the performance of the machine as I waiting for the last parts to finish my system and will be happy to give you a better review after it's rpm and running.
Robin W. Recommends This
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Expert Response
Hello Robin, first and foremost thank you for your purchase of the Quincy QT Pro 5- HP 80-Gallon Two-Stage Air Compressor. We appreciate you taking the time to provide us with your feedback and we can certainly understand your aggravation. We are sincerely sorry for this issue and I have reached out to Quincy for image updates.

Melissa C.
Air Compressor Expert
Rating Breakdown
5/5
5/5
1/5
5/5
Pros:
High Quality, Id Buy It Again

Satisfied Customer
By Bill D.
edgewater, Florida
Purchased 09/18/2014 |
Review Posted 10/18/2014
I shopped for a while before I bought this compressor. It's the last one I will ever buy. I had a Quincy compressor I bought used and and used it myself for 20 yrs.
I sold it last year and it's still working today. The new compressor was shipped and received without issue. I like the fact that it's American made. Its up and running nice and quiet.
I have several air tools, and the biggest air user is a blast cabinet. This compressor will handle anything I've got.
I sold it last year and it's still working today. The new compressor was shipped and received without issue. I like the fact that it's American made. Its up and running nice and quiet.
I have several air tools, and the biggest air user is a blast cabinet. This compressor will handle anything I've got.
Bill D. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Product Q&A
(1)

Product Questions
Answered by Melissa, the Air Compressor Expert
How much oil does this compressor hold?
Eddy
from Georgia
March 31, 2023
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Quincy QT Pro 5- HP 80-Gallon Two-Stage Air Compressor (230V 1-Phase)




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