Jun-Air Air Compressors – Information, Parts, Manuals, Service Locations

Published Categorized as Jun Air 8 Comments on Jun-Air Air Compressors – Information, Parts, Manuals, Service Locations

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

Table of Contents

Jun-Air Information

Since the introduction of their first compressor in 1958, Jun-Air has become a leading supplier of quiet air compressors used in laboratories, dental clinics, medical, beverage, graphic, and industrial applications worldwide.

Their products include a full range of standard and customized compressors and cabinets. Continuous development of products and production facilities helps maintain Jun-Air’s reputation for quality and reliability among its more than half a million satisfied customers.

Jun-Air air compressors are normally sold at industrial compressor and compressed air component distributors and from some specialty distribution outlets such as dental and laboratory supply houses.

These slick air compressors appeal to the specialty air compressor market because Jun-Air air compressors are among the quietest available, anywhere in the world.

Jun Air Air Compressor
Jun-Air Air Compressor

Jun-Air Contact Information

Jun-Air can be contacted at any of the following headquarters relevant to your location!

Website: https://www.jun-air.com/


United States
JUN-AIR / Gast Manufacturing, Inc.
2300 M-139 Highway
Benton Harbor, MI 49023-0097
Phone: (269) 934-1216
Fax: (269) 927-5725
Email: [email protected]

JUN-AIR / Gast Group Ltd
Unit 11, The IO Centre
Nash Road
Redditch, B98 7AS
United Kingdom
Phone: +44 (0) 1527 50 40 40
Fax: +44 (0) 1527 52 52 62
Email: [email protected]

Gast Group Limited
Room 3502-3505,
No. 1027 Chang Ning Road, Zhaofeng Plaza,
Shanghai, China 200050
Phone: +86-21-52415599 ext 302
Fax: +86-21-52418339 ext. 302
E-mail: [email protected][email protected]

Jun-Air Air Compressor Manuals

If you are searching for a manual for Jun-Air compressors, just visit the Jun-Air site and navigate to their technical documents section to view all their datasheets, specifications, and manuals. Alternatively, you can click here which will take you directly to that page where you can select your category, product, and document type.

Changing Jun-Air Oil

There are resources online that show how. As far as I’m concerned, since the site glass is close to the lowest point in the sump, the easiest way maybe this.

I would open the oil vent at the top of the pump, then, with care as it will be a mess, remove the sight glass. Oil will pour out, and as it does, tilt the pump towards the sight glass to drain as much of the oil as possible.

Replace the sight glass and fill it with fresh oil. Oil change video: Changing to a different oil in Jun-Air compressor

Jun-Air Air Compressor Troubleshooting, Problems & Fixes

This is a Jun-Air compressors page to help users find information relating to Jun-Air air compressors from others that own and have worked on their own. If there is something about the Jun-Air air compressor use that evades you, and you cannot get the information from Jun-Air directly, on this page you can both post and read about the issues and comments of others that are using Jun-Air air compressors.

If you are a Jun-Air owner or user and can offer advice on any of the questions, please do so.

Existing Jun-Air Compressor issues:

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

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Our junair, 6 gallon, has started emiting an oily smell. Oil level is good and is monitored and drained regularly. Use only junair oil.

Maybe it’s working too hard.
How long from empty to full tank? When it gets to full, is it at 8bar/120psi? Does it hold there?

I have a Jun Air 6-15 oil lubricated compressor – Absolutely bulletproof! My question is – to use for airbrush painting at up to 40psi, does it need an air filter AND an oil filter?

If you haven’t already, please read here:


Then if you still have a question (or three) reply here…

Bottom line, though, is it depends, and you pretty much have to experiment until you get what you need.
Alternatively, buy yourself a airbrush compressor. It might actually be cheaper in the long run.

I have a jun air compressor i would like to add a tank and use for airbrushing what components are needed to complete this project. Also it does not have just a power plug can one be added for this and how should the wiring be done. It is a jun air of332 the label says 110v and 220v i suppose it can be configured for your needs.

Thanks for any help
Brandon H

Couple things –
Where are you? By which I mean what Voltage are you dealing with at the outlet?
I don’t see a 110/220V version – how about you send a pic of the label that says that?
The model you have has no tank at all? Then you need to come up with one rated at 200psi or so, given the 175psi of the ‘motor’ (what Jun-Air calls it). There’s an alternative to that, but it’s probably wasteful.
Finally, what brushes are you planning to use? What pressure and CFM are they?

I have a jun air compressor oil less has two 240v electric motors the model is 4000-40BD3 and has no power connector plug.it also has 2 sets of wires 3 each and I need help with the power plug connection wiring? Any assistance will be greatly appriciated

You can google electric plug connections for your country and get your answer.