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
$3,270.45
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.
Flywheels 5–25 HP
Our Eaton pumps feature heavy-duty cast iron flywheels designed to maximize energy efficiency and performance. The increased mass generates greater kinetic energy, reducing amp draw and lowering overall energy consumption. Each flywheel is equipped with multiple B-groove belts, providing a larger contact surface area to extend compressor belt life. Additionally, flywheels are engineered with optimized cooling fins to enhance compressor pump cooling capacity.
- 5 HP – 16” flywheel, (2) B-style groove belts, 6 large cooling fins
- 7.5 / 10 HP – 20” flywheel, (2) B-style groove belts, 9 large cooling fins
- 15 / 20 HP – 24” flywheel, (3) B-style groove belts, 6 large cooling fins
- 25 HP – 20” flywheel, (4) B-style groove belts, 9 large cooling fins
Piston and Connecting Rod
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Cast Iron High-Pressure Pistons
Must be cast iron for long life. Designed to withstand heavy loads, they prevent cylinder scoring and pump failure, unlike aluminum high-pressure pistons used by some competitors.
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CNC-Machined Solid Cast Iron Connecting Rods
Provide maximum rigidity and strength for long-term reliability. Competitor rods often use aluminum, which is prone to failure.
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Replaceable Bearing Inserts & Wrist Pins
Allow full rebuildability of the connecting rod assembly, extending pump life. The connecting rods are fully rebuildable and not throw-away, unlike many competitor designs.
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Low-Pressure Pistons (Two-Stage Pumps)
Made from aluminum for balance and efficiency, as they operate under low stress (~45 PSI).
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Advanced Piston Rings
We use four rings instead of three, designed to overlap each other: two oil control rings remove excess oil on the downstroke, and two compression rings seal under compression to prevent blow-by. This design maximizes sealing, reduces oil carryover, and extends ring life.
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Superior Connecting Rod Design
Maintains strength at the rod’s base, preventing catastrophic failure common in aluminum rods. At the crankshaft end—the point where aluminum rods commonly fail—cast iron provides the most reliable long-term performance.
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Rifle-Drilled Connecting Rod Oil Port
Allows oil to travel through the crankshaft to the rifle-drilled passage in the connecting rod and up to the piston pin and bearing, ensuring continuous lubrication and extended component life.
Disc Valves
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CNC-Machined Concentric Ring (Disc) Valves
Precision surface-ground for superior sealing, durability, and extended service life. Also known as concentric ring valves, this design is significantly more reliable than feather or fixed reed valves commonly used by competitors. Although more costly to manufacture, disc valves deliver greater longevity and consistent, trouble-free performance. Service is simple and efficient—remove the retainer, lift out the valve for inspection, and reinstall it within minutes. In contrast, reed valve systems require substantially more service time and are more prone to issues.
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Head Unloader Option
All valves are engineered to support an automatic head unloader system. Head unloaders are only included on fully packaged electric units, while on gas-driven units, the unloader is included on all models. Recommended for electric units operating at 40% or greater duty cycle, head unloaders save energy, improve efficiency, reduce wear, and extend equipment life while protecting the electric motor and magnetic starter by minimizing repeated starting under load. The pilot valve works with a ball valve connected to it; under high duty cycle applications (over 40%), the ball valve can be opened to allow continuous-run operation. On electric units, the unloader works with the pilot valve to unload the compressor at preset pressure, holding the intake valve open to prevent compression while the piston continues cycling. This allows cool air to circulate through the cylinder, dissipating heat and reducing internal temperatures. On gas-powered continuous-run units, the head unloader reduces starting drag, improves ease of starting, lowers fuel consumption, and minimizes engine strain.
Oil Pump
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Oil Pump Bleeder Valve
Allows for quick and efficient priming of the oil pump.
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Liquid-Filled Oil Pressure Gauge
Provides clear, accurate oil pressure readings for easy monitoring during operation.
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Automotive-Style Gear Oil Pump
Designed for reliability, this pump pressurizes the internal crankshaft bearings and the upper connecting rod assembly, delivering oil to critical wear points to improve bearing cooling and extend overall engine and pump life.
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Adjustable Oil Pump Regulator
Enables precise oil pressure adjustment across varying RPM ranges.
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Automotive-Style Spin-On Oil Filter
Effectively removes debris and contaminants from the oil, helping extend pump service life.
Cylinder Heads
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Solid Cast Iron Cylinder Heads
We do not use aluminum cylinder heads due to their tendency to experience head gasket failures, and because most are equipped with reed-style valves that typically result in shorter service life. Our cast iron heads are engineered for maximum durability and extended performance. Tapped holes provide superior strength compared to aluminum heads, while cast iron maintains rigidity under demanding conditions. The disc valve design ensures a secure head gasket seal without the need for retorquing.
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Precision-Machined Disc Valve Design
Allows for quick valve inspection and simplified maintenance. Recognized as one of the most reliable valve systems in the industry.
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High-Quality Disc Valves
Designed for easy serviceability, long valve life, and dependable, trouble-free operation.
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Head Unloaders
Compressors equipped with the head unloader option improve efficiency and extend electric motor life. When maximum tank pressure is reached, the preset pilot valve unloads the compressor, allowing the motor to continue running rather than repeatedly starting and stopping. This reduces amp draw by up to 60% while unloaded and minimizes electrical and mechanical wear. Head unloaders are also used on our gas-powered units to minimize load on the electric start system, increasing starter life and reducing fuel consumption.
Cylinder Construction
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Cast Iron Cylinders
CNC-machined to maintain overall flatness and precise tolerances. The precision cylinder bore ensures concentricity, reducing oil carryover and supporting long-lasting piston performance.
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Deep Fin Cooling Fins
Designed to maximize surface area for efficient cylinder cooling, extending pump life under high-duty cycle operation.
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100% Cast Iron Construction
No aluminum sleeves. Unlike aluminum, cast iron handles high-duty cycle compression efficiently. Many competitors claim cast iron but use aluminum beneath the paint—Eaton pumps are truly all cast iron.
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Deep-Bored and Threaded Holes
Provide solid head retention and allow proper torque application, ensuring long-term durability of cylinder and head gaskets.
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Precision-Honed Cylinder Surfaces
Every pump maintains measured cylinder honing, promoting easier break-in, reduced oil carryover, and longer piston ring life.
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 | 31.00 |
| Silent Air | N |
| Smart Air | N |
| Compressor Type | Piston |
| Motor Type | ODP |
| Tank Orientation | Vertical |
| Outlet Size | 3/4" |
| Belt Count | 2 |
| Pump Stage | 2 |
| Pump Model | APP4V1043TP |
| Pump Riser | N |
| Belt Tensioner | N |
| Mag Starter | Y |
| Radiator | N |
| Peak Starting Amps | 210.00 |
| Pump RPM | 590.00 |
| Motor RPM | 1740.00 |
| FLA + 1.15 Service Factor | 38.90 |
| Locked Rotor Amps | 210.00 |
| Recommended Breaker | 50.00 |
| Max PSI | 175.00 |
| Uncrated Weight | 0.00 |
| Crated Weight | 823.00 |
| Uncrated Length | 37 |
| Uncrated Width | 25 |
| Uncrated Height | 75 |
| Crated Length | 48 |
| Crated Width | 46 |
| Crated Height | 87 |
| Oil Capacity | 2.00 |
| Oil U/M | Quarts |
| Start Type | Fixed |
| Estimated Pump Life (Hours) | 70000.00 |
| Certifications | ETL,ASME,CRN |
| Service Kit | FKIT008WBS |
| Battery Voltage | 0.00 |
| DBA | 0.00 |
| Max Ambient Temp (F°) | 0.00 |
| Max Inlet Temp (F) | 0.00 |
Based on 30 reviews
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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 –
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 –
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 –
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 –
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 –
Rushie –
[unit] Runs very quiet!!
Rushie –
Rat Rod Nut –
Looks like a really good air compressor. Made in the USA!
Rat Rod Nut –
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 –
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 –
Dave Hudson –
Very quiet compressor. Builds pressure quickly. Good quality
Dave Hudson –
Matthew R. Reed –
Very happy with this compressor
Matthew R. Reed –
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 –
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 –
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 –
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 –
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 –
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 –
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 –
Scott –
Great compressor, very quiet. Megan South and Sydney Werts very friendly and helpful. Would definitely recommend this compressor.
Scott –
Raymond Shadrick –
very quiet, pumps fast extremely good price for the product would recommend to other people
Raymond Shadrick –
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 –
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 –
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 –
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 –
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 –
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 –
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 –
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 –
George Englert –
I havent got it hooked up yet! But every body was ve help in the order a nd purc
George Englert –
ROBERT –
I purchased my 7.5 HP 3 cylinder, 2-stage, 80 gallon vertical air compressor with Panther Pink PAINT,( wanted something different it is a nice color). in 2005. I have never had a problem with it. It works just find in the freezing cold minus zero degree temp in the shop. Is not used every week but when I need it it works. Very Happy with this air compressor. sORRY FOR THE cAPS.
ROBERT –