Quincy Air Compressors – Information, Manuals, Service Locations

Published Categorized as Quincy 7 Comments on Quincy Air Compressors – Information, Manuals, Service Locations

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Quincy air compressors have been in business since 1920 when they introduced their first product offering. It was vacuum pumps then, designed for milking cows. They have sure come a long way since then.

This page will provide you with as much relevant information as possible, where you can seek help, download manuals, and navigate existing problems and solutions available on this site.

Table of Contents

Quincy Information

Now, Quincy manufactures industrial lines of reciprocating and rotary screw air compressors.

Manufacturing and processing companies can purchase an industrial type Quincy air compressor through the Quincy air compressors distribution network.

Quincy air compressors are powered with electric motors ranging from one-third HP up to 350 HP.

Quincy Air Compressors
Quincy Air Compressors

Quincy also offers a more garage-shop-oriented line of reciprocating air compressors. Those looking to buy this type of Quincy air compressor have the option to buy online through Northern Tool, Amazon, Tool Zone, Air Compressors Direct, and TP Tools & Equipment.

Quincy Contact Information

The Quincy air compressors website offers a host of information about their products, including a convenient download portal for manuals, etc.

If you are looking for support on a Reciprocating type air compressor or to help you find your local Quincy compressor distributor, here is where you go:

Quincy Compressor
3501 Wismann Lane
Quincy, IL 62305-3116
W: https://www.quincycompressor.com

Quincy Rotary Screw Compressor Help

For information and help on their Rotary Screw compressors, see:

Quincy Compressor
701 North Dobson Avenue
Bay Minette, AL 36507
W: https://www.quincycompressor.com

Quincy Air Compressors and Parts Available on Amazon

Some Quincy air compressors and their parts are readily available on Amazon. I have picked out a couple that may be ideal for you!

Quincy Air Compressors

First is the Quincy QT-54 Splash Lubricated Reciprocating Air Compressor which appears to be a best seller and has excellent reviews. This compressor has a capacitor start motor with a built-in thermal overload!

The second is a 14 HP Quincy QT-7.5 Splash Lubricated Reciprocating Air Compressor which has a 2-cylinder pump design.

Quincy Air Compressor Parts

There is also an extended support and maintenance kit for Quincy QT-5 and QT-7.5 air compressors available.

You can also purchase an air filter element which is designed specifically as a replacement on Quincy air compressors.

Quincy Compressor Troubleshooting, Problems & Fixes

This Quincy air compressors page on about-air-compressors.com is provided to allow users of Quincy air compressors a place to post questions and to allow comments from folks that use them. Fellow Quincy owners and users are invited to comment on the questions posted to provide help if they so choose.

On the way down to post at the end of this page, please read the existing Quincy posts for an answer to your compressor problem.

If you are familiar with a Quincy air compressor and have some advice on an existing post, please do so. Let other Quincy air compressor users know of your experience with this brand.

Below are more pages with questions, answers, and information about specific Quincy air compressors problems:

Pump issue with Quincy 325

Quincy single phase won’t turn on?

Wiring a Quincy 5 HP compressor motor

Quincy compressor showing dew point fault

Quincy 310 unloader leaks

If you have any questions about Quincy compressors then please leave a comment below with photos if applicable to help others respond to you!

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We have an older Quincy rotary scroll compressor (QSB25N315J) that has been running well until a few months ago when we started to hear a very loud screaming noise from what seems to be the intake area. The unit was under normal load conditions as far as we could tell, the belts were turning and the capacity gauge was reading 100% (normally running around 60%) Our overall system pressure appeared to be holding steady. We shut down the unit and disassembled the intake valve, replacing the shaft and the o-ring seal since they appeared to be worn. The unit was… Read more »

Sounds like a bearing, off hand.
But I didn’t know they ever made a scroll type…
But then I found a manual, and they call it both a helical and rotary screw in the parts.

Anyway, there is a “disc-orifice” in the lubricant piping – might be clogged?

I’m attaching a page from the manual I found just to see if it looks like what you’re working with.

Thanks for the reply Doug! I definitely misspoke when I said “scroll”. I did mean rotary or helical screw compressor. I discovered a few other recommendations regarding this issue which suggested checking belt tension and condition. I found the tension was a bit loose so I tightened them and gave been running the compressor while letting an eye on it.

I agree with you. If the noise comes back the bearings are the next place I’ll look. I appreciate your assistance!

Cool. Let us know how it goes. You might want to start looking for a new set of belts if they’re getting checkered.

Good luck.

Why does my Quincy 325 get louder as it approaches max pressure. Regulator set at 110psi. The compressor runs normal until it approaches the 75 psi range. No problem making air just concerned about the change in sound.

Louis, your post was moved to the Quincy page.