Maxus EX8403 21 Amp 5 HP 80-Gallon Cast Iron Oiled Two-Stage Vertical Compressor

by Campbell Hausfeld

Product Description

Amazon.com Product Description

The Maxus 21 Amp 7 HP 80-Gallon Cast Iron Oiled Two-Stage Vertical Compressor provides up to 10,000 hours of pump life. This compressor features a rugged two-stage, cast iron, two-cylinder, and oil-lubricated pump for long life and durability. Ideal for automotive and job site tasks, it offers an oil sight gauge, high airflow, and 175 maximum PSI. Providing greater air storage and powering a wide variety of air tools and equipment, this oiled vertical compressor comes with a 5-year limited warranty.

Product Description

Ideal for frequent use of air power in a body shop or facility. Includes cast iron, two-stage pump for long life and durability.

See all Product Description

Product Details

• Product Dimensions: 31 x 78 x 41 inches ; 597 pounds
• Shipping Weight: 444 pounds (View shipping rates and policies)
• Shipping: This item can only be shipped to the 48 contiguous states. We regret it cannot be shipped to APO/FPO, Hawaii, Alaska, or Puerto Rico.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B0002IKTTW
• Item model number: EX8403
• Average Customer Review: 4.7 out of 5 stars  See all reviews (3 customer reviews)
• Amazon Best Sellers Rank: #311,598 in Home Improvement (See Top 100 in Home Improvement)
• Discontinued by manufacturer: Yes

Customer Reviews

Most Helpful Customer Reviews

5 of 5 people found the following review helpful:

5.0 out of 5 stars Owned for two weeks / 18 month update below, November 28, 2008

By 

C.Stanley (RI - USA) - See all my reviews

I have owned this compressor for about two weeks so far so I can only comment on setup and limited use, as well as voltage requirements that prospective owners should know about before purchasing any air compressor.
I installed it at my place of business and quickly realized that the motor is wired for 230 volts, but my service supplies 208 volts. I emailed Campbell Hausfeld and they replied within a week,telling me that the motor requires a minimum of 215 volts to operate. I then called Emerson where the compressor motor is made and they told me that they do not recommend running the motor on 208 volts, and that the motor is not capable of being rewired for 230 volts.
Further research led me to hire a electrician to install a "buck and boost transformer" to raise my voltage from 208 volts to 230 volts. This was the solution I chose, rather than return the compressor and buy one that ran at 208 volts, because my research showed that the compressor would run more efficiently at 230 volts than at 208 volts. After all, if I couldn't achieve the maximum cfm that the compressor is capable of then why bother with a 2 stage compressor in the first place? The transformer cost $ 138.00 and the electrician another $ 180.00 for his expertise.
When the installation was complete we threw the switch and the compressor ran perfectly with a moderate amount of noise and hardly any vibration (I bolted it to the concrete floor with neoprene pads under the feet). So far I have only used it for about two hours on one project, but from what I can see it works perfectly. It builds pressure up to 175 psi as listed, then sits idle until the pressure drops down to 125 psi. I have another project coming up within the next two months and will follow up this review at that time.

UPDATE: I have now owned this compressor for about 18 months and I am happy to report that it has worked perfectly. The only con that I can see is that there is a very slight dripping of compressor oil that seems to be coming from the drain plug and dripping down the side of the air tank over time. I see this as an extremely minor issue because the level of compressor oil is still where I started when looking at the glass "bubble" on the side of the unit. I have not had to add any compressor oil to the unit. In hindsight, I should have removed the oil drain plug and wrapped it in teflon tape before filling the unit with compressor oil. I would definitely recommend this compressor.

5 of 5 people found the following review helpful:

4.0 out of 5 stars No problems after a years worth of use., April 2, 2008

By 

EZEZEZEZEZEZEZ "EZ" (somewhere, United States) - See all my reviews

Amazon Verified Purchase

This review is from: Maxus EX8403 21 Amp 5 HP 80-Gallon Cast Iron Oiled Two-Stage Vertical Compressor (Tools & Home Improvement)

I should say that the unit did have a bad pressure switch on arrival but CH got that rectified quickly. Since, the initial problem there haven't been any and it has worked as expected. I have it in my hobby shop and it easily keeps with anything and everything I do. I have heavy air consumption tools and it has no problem keeping up, it could handle 2-3 times what I do and still keep up LOL.
This unit makes single stage, 60 gallon compressors sold at the BORG look and perform like toys. ;-)

5.0 out of 5 stars 5HP and 21 amps is not 7.5HP, January 1, 2010

By 

R. Geier (Washington state) - See all my reviews
(REAL NAME)   

This review is from: Maxus EX8403 21 Amp 5 HP 80-Gallon Cast Iron Oiled Two-Stage Vertical Compressor (Tools & Home Improvement)

Love the Compressors section advertisements.

First this compressor is manufactured in Singapore. Should you need parts or anything else for the compressor head in the future this may be a concern.

Advertised as a seven and a half, 7.5, Horsepower compressor. I was planning on replacing my 5HP compressor until I found the amp rating on the motor was the same as my 5HP compressor. Physics says you can't get more power from the unit than you take from the wall. This is a 5HP motor. I don't care what the placard says. Amazing this type of advertisement is even allowed. Poor consumer that doesn't know a thing about electricity. He is at the marketers mercy.