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Polar Air Industrial 7.5HP 31CFM 1-Phase 2 Stage 80 gal.Vertical Stationary Electric Air Compressor-w/Pressure Lube Pump,w/Isolator Pads

SKU: P01IXXXP07V080VXXXX

(28 customer reviews)
POLAR
    Availability:

    Available on backorder

    $3,247.98

    Available on backorder

    Pressure Lubrication Pump

    Maximum Protection for Critical Components

    Pressure lubrication reduces friction and internal wear by delivering a continuous flow of oil to each bearing point via a gear oil pump, keeping bearings cool and extending pump life. Each crankshaft and connecting rod is gun-drilled for precise oil flow, while a spin-on automotive-style oil filter ensures clean oil for maximum longevity. An analog pressure gauge allows operators to monitor oil pressure accurately, providing reliable performance and peace of mind.

    100% Cast Iron Pump Features

    Many compressors rely on aluminum components, which do not offer the same durability and rigidity as cast iron. All major components of our compressors are constructed from cast iron, including:


    ● Crankcase
    ● Cylinder heads
    ● Cylinders


    ● Connecting rods
    ● Crankshaft
    ● High-pressure piston

    High Performance

    Pressure Lubricated pumps feature a high-performance pressure lubrication system, delivering superior protection and longevity under demanding conditions. A gear-driven oil pump, mounted to the rear of the crankshaft, generates positive oil pressure, ensuring consistent lubrication throughout the system.

    Rifle Drilled

    All crankshaft and connecting rods are rifle-drilled, allowing direct oil flow to key wear points— including bearings and other high-friction components. A SPIN ON automotive-style oil filter provides clean, efficient filtration for optimal performance and simplified maintenance during oil changes.

    Critical Components Coverage

    Unlike splash-lubricated systems, pressure lubrication delivers oil precisely where it's needed, reducing friction, wear, and heat—especially in high-stress, continuous-duty environments. This is the most effective method for keeping your compressor running stronger, longer.

    Optional Head Unloaders

    Head unloaders are ideal for constant-run applications. They relieve the intake valve during operation, improving pump cooling and reducing overall wear under heavy workloads. This feature enhances reliability and extends the service life of the compressor in demanding environments. On our gas-powered compressors, continuous-run head unloaders provide decompression during engine startup, reducing load on the electric starter and ensuring smoother, more efficient starts.

    Piston Rings

    Our pumps utilize a four-ring piston design, featuring precision-engineered overlap rings that minimize compression loss and significantly reduce oil carryover. This configuration enhances sealing efficiency, improves overall pump performance, and supports long-term reliability under demanding operating conditions.

    Gaskets

    Our pumps feature high-quality, non–oil-absorbent gaskets designed to minimize oil leakage. This ensures a more reliable seal, reduces maintenance requirements, and contributes to the long-term efficiency and durability of the pump.

    Disc Valves

    Our disc valve system is engineered to deliver exceptional durability in both intake and exhaust functions, ensuring reliable performance over decades of use. This design enables efficient maintenance without the need to remove the cylinder head, significantly reducing service-related downtime. In contrast, many competitors rely on reed valves, which require head removal and are less suitable for demanding, heavy-duty applications.

    Flywheel

    Each compressor pump is fitted with a large cast iron flywheel to increase kinetic energy and reduce motor strain. We offer both dual-belt and triple-belt configurations. All pumps utilize standard B-groove belts, which provide increased belt-to-flywheel surface contact, enhancing belt longevity. The flywheel has large cooling fans which increases airflow across the pump.

    Cylinder Heads

    Unlike traditional aluminum heads—known for their susceptibility to gasket failure—our cast iron cylinder heads and valves are precisely machined to deliver superior strength, reliability, and long-term performance.

    Bearings

    Our pumps utilize tapered roller bearings on both the front and rear of the crankshaft to ensure smooth, reliable operation. The automotive-style connecting rods feature rebuildable bearings at both the piston pin and the crankshaft connection. In contrast, many competitors rely on aluminum connecting rods, which are non-rebuildable and must be discarded when worn.


    Motor

    These units have name brand OPD (open drip motors) on them, all of which carry a five-year warranty. All of our motors are low RPM (1750 rpm), versus the higher RPM motors (3450 RPM) used on many competitive units. 1750 RPM motors run much cooler than 3450 RPM motors, because of the higher torque factor. They also yield low harmonic distortion, provide much higher torque in cold weather starting and requiring less electricity under start up.

    • High quality ball bearings on the front and rear of the motor shaft
    • Large starting and running capacitors15 Service Factor load. This means the motor can be pulled 15% over full load for more break horsepower
    • Dynamically balanced armature for low vibration levels

    Belt Drive | V-Belt Design

    Power You Can Rely On

    Unlike competitors using narrow, single A-width belts, our compressors feature a multi-belt drive system with B and C-width belts. This design provides:

    ● More surface area for better grip
    ● Reduced belt tension, minimizing strain on motor and compressor bearings
    ● Lower noise and vibration, extending belt and system life

    The result is a durable, efficient, and a low-maintenance drive system built for thousands of hours of trouble-free use.


    Piston Compressor Warranty

    Eaton Compressor, backs all our piston air compressors with the best extended warranty in the industry. With our extended warranty, we don’t ask you to buy a service plan, we just ask that you purchase and use our oil and filters. This ensures the correct oil and filters are being used, to keep your piston air compressor running for years to come. We have 3 different extended warranty options to choose from so you can pick what best suits your company’s needs. Make sure to research and ask questions, when comparing warranty information. Be certain, when you buy, that you are getting a full warranty. Our trained service and support team is ready to assist you if you ever need them and we carry a full line of air compressor replacement parts.

    Weight 787 lbs
    Brands

    POLAR

    HP

    7.5

    Tank Size

    80

    Voltage +/- 10%

    230

    Phase

    1

    Drive Type

    Electric

    Tank Drain

    Manual

    Pump Type

    PRESSURE

    CFM

    31

    Silent Air

    N

    Smart Air

    N

    Compressor Type

    Piston

    Motor Type

    ODP

    Tank Orientation

    Vertical

    Duty Cycle

    0.6

    Outlet Size

    3/4"

    Belt Count

    2

    Pump Stage

    2

    Pump Model

    APP4V1043TP

    Pump Riser

    N

    Belt Tensioner

    N

    Mag Starter

    Y

    Radiator

    N

    Continuous Run

    N

    Peak Starting Amps

    210

    CFM At Max PSI

    26

    Pump RPM

    590

    Motor RPM

    1740

    FLA + 1.15 Service Factor

    38.9

    Locked Rotor Amps

    210

    Max PSI

    175

    Uncrated Length

    37

    Uncrated Width

    25

    Uncrated Height

    75

    Crated Length

    48

    Crated Width

    46

    Crated Height

    87

    Oil Capacity

    2

    Oil U/M

    Quarts

    Start Type

    Fixed

    Estimated Pump Life (Hours)

    70000

    Certifications

    ETL,ASME,CRN

    Service Kit

    FKIT008WBS

    Based on 28 reviews

    4.9 overall
    24
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    1. Joe

      Monster of a compressor. Makes my 7hp 80gal Campbell compressor look like a toy. Noticeably quiter then it also. Very fast fill time and recovery time while in use. Only down side I have found. They ship with oil. But receiving mine it’s barley in sight glass and their manual says should be middle of sight glass. And so far have had found 3 noticeable air leaks by sound so far. Will have to wait over night to see if it holds pressure. Need to invest in Teflon paste instead of tape who ever taped this one didn’t do very good job. Little disappointing. Hopefully this is the only issues I run into

      Joe

    2. Joe

      When I first received the compressor I was blown away how big it was. Made my 7.5hp Campbell look like a toy. It is much quiter you can actually talk in the shop now when it’s running.

      Now the down side. They say they test before shipping. Mine on level ground the oil is barley in the site glass. Can’t find any sign of leaks. Second. I have fixed 4 air leaks on it the first 2 days I had it. Maybe need to switch to Teflon paste to make it easier to seal and put together for asmbly guys. Leaks were noticeable hisses when machine was off. Other then the leaks. So far I’m happy with compressor

      Joe

    3. Bryan

      The size and weight difference vs my other 80 gallon unit was substantial. I use this compressor in a full time shop setting, and while it does not run all day, because I always try to have more than I need to cut down on moisture, it does run an hour or two everyday. It’s been 2 years since I brought it home, and I am still impressed with the fill time, and how well it keeps up my tools. It keeps up with a medium blast cabinet with no problem, and never complains even when it’s 100 plus degrees in my shop. I have moved into larger building twice already, and I’m confident this compressor will be following me for quite some time.

      Bryan

    4. Thomas

      This compressor is a BEAST, extremely powerful and quiet, FAST fill time to 175psi. The compressor arrived on time professionally crated top to bottom. It was easy to wire to 220 using 6/3 wire, it came fully tested and filled with the proper amount of oil. I wired and plumbed this compressor, turned it on and had no problems or leaks what so ever a true quality made machine. Megan was very professional and knowledgeable, she answered all my questions and worked with me to arrange a shipping time that fit my schedule, she is a true asset to Eaton Compressors and a pleasure to do business with. I searched and compared compressors for months until I came across this Polar Air compressor. The quality and service of Eaton Compressor far exceeds my expectations. I was sold instantly and have no regrets in my choice. I would refer them to anyone who wants a quality product as well as knowledgeable staff to answer any and all of your questions or concerns.

      Thomas

    5. Dennis Boggs

      Compared other brands as well as personal recommendations before purchase. I especially like the slower compressor speed. This means lower compressor noise level as well as longer compressor life.

      Dennis Boggs

    6. Rushie

      [unit] Runs very quiet!!

      Rushie

    7. Rat Rod Nut

      Looks like a really good air compressor. Made in the USA!

      Rat Rod Nut

    8. Mike Butcher c/o Butcher Trucking

      I am very happy with the compressor. It is much quieter than my last compressor.

      Mike Butcher c/o Butcher Trucking

    9. Gianni Biasetti c/o Stuntworld Inc

      My air compressor arrived a week early, crated very nice, looks impressive, very good customer service, answered all my questions, Very hard to find a USA made product these days, very very happy.

      Gianni Biasetti c/o Stuntworld Inc

    10. Dave Hudson

      Very quiet compressor. Builds pressure quickly. Good quality

      Dave Hudson

    11. Matthew R. Reed

      Very happy with this compressor

      Matthew R. Reed

    12. Albert Miller

      In the process of hooking up but the people were very friendly and helpful. Megan South and Jeff Jones were very helpful cant wait to hear it run. Thanks

      Albert Miller

    13. Robert Shough

      I have used Eaton for many years. This is my 4th compressor we have bought 2- 5hp and now a second 7.5 hp for my self. All the compressors are still running strong. You will not find a better company than Eaton and staff members like Matt.

      Robert Shough

    14. Jerry

      I have had my 7.5 compressor for about 10 years now, working it almost daily; quiet operation fast build up, no problems just oil and filter changes

      Jerry

    15. Ken Galloway

      This compressor is much bigger than i thought it would be. Everyone i have talked with has very nice. Hard to find nice and polite people these days. I will recomend Eaton to anyone looking for a great compressor!

      Ken Galloway

    16. Jon

      Great compressor, very quiet. Amazing upgrade over our old IR compressor. Spoke to Megan South and she was able to find us one that would work with the air dryer we had already purchased from Eaton about earlier. This is one of the compressors she recommended and we love it!

      Jon

    17. Stephen Love

      I waited a long time to get a substantial air compressor. After reading forum after forum for years I bit the bullet and purchased this 7.5 hp 80 gallon model. I’m confident that it will do everything I want to do now and in the future without a problem. After living with small 1-3 gallon tank oil-less models for years this tool is a game changer. I love how quiet this thing is… and I haven’t even gotten the silencer yet. I plan on getting the muffler system to add on later. From my phone the air compressor measures about 70 Db right next to it and 55 Db at the entrance of my garage door. I can barely hear it outside the garage with the doors shut. It’s quieter than my loud car so I’m super pleased. Getting the unit into the garage was a bit of a struggle, I hired a small moving company to help due to my gravel driveway. The pallet was packed very well, the unit has no damage and seems to be very good quality. It fills the tank from 0-175 psi in about 4 1/2 minutes. The only issue I ran into was the pressure switch was screwed down at it’s base unevenly and allowed a small but very noticeable and annoying air leak. 5 minutes and a T25 torx bit fixed the problem and there has been no loss in air pressure at all since. I really like this thing. An air compressor of this size is a gateway to so many other potential projects and tasks that can be accomplished, get one.

      Stephen Love

    18. paul ames

      bigger than I expected,its a beast, but its built to last,very quiet ,have a vapor honing machine and this compressor puts out more CFM than I need ,very happy with my purchase ,highly recommended,

      paul ames

    19. Scott

      Great compressor, very quiet. Megan South and Sydney Werts very friendly and helpful. Would definitely recommend this compressor.

      Scott

    20. Raymond Shadrick

      very quiet, pumps fast extremely good price for the product would recommend to other people

      Raymond Shadrick

    21. Michael Fink (verified owner)

      This is a very good compressor. I’ve owned mine for about 5 years now, use it a few times a week, including for some pretty taxing applications (sand blasting, a lot of paint spraying) and it just performs and does it’s job. Quietly. Without fail. What else can you ask for in a compressor?

      Change the oil and blow out the filters 1-2X a year. Drain the tank every day. That’s pretty much the beginning and end of the regular tasks this compressor asks of me, maybe 1hr a year in total service time. Nice they put a valve on the oil drain, makes it easier to do and less messy. It’s a well thought and out and executed compressor, I’d buy another one if I needed one. That said, other than oil, I think Eaton has seen the last of me because this compressor will likely last longer than I will!

      Michael Fink

    22. Nathan Rea

      Ordered this compressor after a little lead time it was finished exactly when they said it would be. Build quality is top notch and the staff was more than helpful when I went to pick it up. Seem like a great company to deal with. Quality products and quality people can’t ask for much more!

      Nathan Rea

    23. Michael Mclane

      Very great experience with Eaton Compressor. The compressor arrived in a timely manner and with no defects. It is currently up and running with no flaws.

      Michael Mclane

    24. Dick Roy

      the compreser works great, it was packaged excellent well protected from any possible damage. I am very happy! Megan was great and kept me up to date on shipping

      Dick Roy

    25. Brian

      Fantastic compressor! I replaced an aging 60 gallon ~13CFM unit with this 7.5HP 80 gallon unit and the difference is amazing. Even without the whisper package, the compressor is significantly quieter than my previous model, and I now have more than double the air output and the tank cycles much less than before. I added an auto drain and an hour meter for proper maintenance intervals. All components are heavy duty and built to last. The two stage compressor unit in particular is impressive; heavy cast iron with intercoolers, and the pressure lubrication system should keep all components lubricated properly. I am very happy with my new compressor and I have no doubt it will provide me with many years of heavy use. I picked the unit up at Eaton and Megan made the experience very easy, thank you!

      Brian

    26. Michael Strohl

      Arrived vefy well protected in a robust crate. Very nice unit, very quiet unit and wasnt even their quiet series. Looks like a quality machine.

      Michael Strohl

    27. Kevin L

      This unit is a beast compared to the big box store compressors I am accustomed to. It filled up in a couple of minutes from empty, and is far quieter than the average oilless compressor. The sound it does make is also low-frequency so it isn’t irritating being around. I have this in a residential three-car garage and have no worries bothering my neighbors when it is operating. Would gladly make this purchase again.

      Kevin L

    28. Joe Aiello

      This is the best value on the planet. Super quiet and powerful. with the air dryer added, it makes the air so moisture free for the entire air system. I thought I needed a more expensive rotary, but this meets all the needs..fantastic, couldn’t be happier with the decision.

      Joe Aiello