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

SKU: P01ISXXP07V080VXXXX

(42 customer reviews)
POLAR

$3,481.11

Silent Air™

Patented Noise Suppression System – Up to 50% Quieter

Silent Air Technology

This intelligent design achieves up to 50% quieter operation—with noise levels at or below conversational volume (each 10 dBA drop equals a 50% reduction to the human ear). Unlike enclosed cabinet systems, which are costly and restrict service access, our silencer is costeffective, easy to service, and doesn’t compromise accessibility.

Noise Reduction

Our Silent Air™ patented silencer system sets us apart as one of the quietest compressor brands on the market.

Air Filtration

Designed to reduce intake noise—the loudest source of compressor sound—this system uses:

● Noise-reducing baffle plates

● High-capacity filter media

● Up to 1000% more filtration than standard setups


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.

flywheel

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.

  1. 5 HP – 16” flywheel, (2) B-style groove belts, 6 large cooling fins
  2. 7.5 / 10 HP – 20” flywheel, (2) B-style groove belts, 9 large cooling fins
  3. 15 / 20 HP – 24” flywheel, (3) B-style groove belts, 6 large cooling fins
  4. 25 HP – 20” flywheel, (4) B-style groove belts, 9 large cooling fins

Piston and Connecting Rod

Rods1

  1. 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.


  2. 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.


  3. 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.


  4. Low-Pressure Pistons (Two-Stage Pumps)

    Made from aluminum for balance and efficiency, as they operate under low stress (~45 PSI).

Rods2

  1. 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.


  2. 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.


  3. 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

  1. 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.


  2. 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

  1. Oil Pump Bleeder Valve

    Allows for quick and efficient priming of the oil pump.


  2. Liquid-Filled Oil Pressure Gauge

    Provides clear, accurate oil pressure readings for easy monitoring during operation.


  3. 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.


  4. Adjustable Oil Pump Regulator

    Enables precise oil pressure adjustment across varying RPM ranges.


  5. Automotive-Style Spin-On Oil Filter

    Effectively removes debris and contaminants from the oil, helping extend pump service life.

pressure

Cylinder Heads

  1. 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.


  2. 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.


  3. High-Quality Disc Valves

    Designed for easy serviceability, long valve life, and dependable, trouble-free operation.


  4. 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

  1. 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.


  2. Deep Fin Cooling Fins

    Designed to maximize surface area for efficient cylinder cooling, extending pump life under high-duty cycle operation.


  3. 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.


  4. Deep-Bored and Threaded Holes

    Provide solid head retention and allow proper torque application, ensuring long-term durability of cylinder and head gaskets.


  5. Precision-Honed Cylinder Surfaces

    Every pump maintains measured cylinder honing, promoting easier break-in, reduced oil carryover, and longer piston ring life.

cylinder

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.

SKU: P01ISXXP07V080VXXXX Categories: , , , , , Brand:
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

Y
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

717.00
Crated Weight

851.00
Uncrated Length

39
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

FKIT008AWBS
Battery Voltage

0.00
DBA

0.00
Max Ambient Temp (F°)

0.00
Max Inlet Temp (F)

0.00

Based on 42 reviews

4.9 overall
39
3
0
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0

Add a review

  1. Bryan Hix –

    All we can say is that the customer service was very friendly and helpful,and when it was delivered its was beautiful and when i started it for the first time it was as quiet as they say. We are very happy and would recommend EATON to anyone

    Bryan Hix –

  2. Guy Forstrom –

    Absolutley exceeded my expectations. I know I made the best choice in an air compressor, Would recomend to all. Tahnks !

    Guy Forstrom –

  3. Rodney Fultz –

    Very Quiet Compressor. Industrial Grade. Very Pleased.

    Rodney Fultz –

  4. Thomas Pranzo –

    So far so good, only operating for 2 days. Looks like a good product and much quieter than other compressors.

    Thomas Pranzo –

  5. Jesse Henne –

    I bought a polar air 7.5 80 gallon whisper, machine is super quiet, filled up the tank from empty to full in 4 minutes. Quality built very impressed

    Jesse Henne –

  6. Steve Manning (verified owner) –

    Finally I have a compressor that can sand blast, orbital sand, and other high CFM chores non-stop. I wish I bought this 20 years ago instead of spending $600 here$ 900 there only to be disappointed and frustrated.

    Steve Manning –

  7. Justin Lohman (verified owner) –

    Excellent Quality. Highly impressed with the rate that it builds air pressure, the way it maintains air pressure, and most impressed with the whisper system. Would recommend to anyone!

    Justin Lohman –

  8. Kris Heskin –

    This compressor is an excellent choice and is even quieter than I expected.Very smooth running machine
    Will recommend this product
    Shipped on time no problems
    Thanks

    Kris Heskin –

  9. Don Hamilton –

    this is the second Polar compressor I purchased. Extremely quiet and built very well. Shipped on time and was crated very well. I would recommend Eaton compressors to anyone…..

    Don Hamilton –

  10. Michael Coffey –

    This is the 1st air compressor I have purchased brand new, I am positive this will be the last air compressor I have to buy. This compressor is a workhorse my shop could be rated light industrial and after setting the compressor up I have 100% faith that this unit is up to the task of my air requirements with plenty of room to spare. It is quiet as advertised, maintenance is simple. Sales customer service and tech support are all exceptional. Purchase with the confidence that you are getting a quality piece of equipment.

    Michael Coffey –

  11. bryan van order –

    Sales and customer service was awesome, but the real star is the performance and quiet operation of this quality product. We have had several compressors over the years but this one far exceeds all the others before. Great product, super happy!

    bryan van order –

  12. Joe Abbott –

    Just received my new compressor. Was packaged well and the shipping company was easy to work with. Megan always answered all of my questions promptly. Looks like a quality unit. Can’t wait to fire it up.

    Joe Abbott –

  13. Robby Penor –

    This is my third compressor and first Eaton compressor, exceeded all my expectations, excellent quality. Sales and customer service was awesome, I would recommend Eaton compressors to anyone!!
    Thanks Rob.

    Robby Penor –

  14. denis k –

    After using this air compressor for the last 3 months on a daily. I can say this thing is amazing, its more then capable to run a frame machine, have a few guys sanding parts and a paintbooth all running at the same time. Its extremely quiet and the shop doesn’t even notice when it kicks on and off. Im pretty confident this will last for years, it was worth the investment, couldn’t be happier. I would recommend this compressor if you need high airflow and constantly using a air-compressor.

    denis k –

  15. Stephen K –

    Finished installing my new compressor and fired it up. I was amazed at how quiet the Whisper system and the 7.5 Hp unit was. I have been employed in Industrial/Aviation industry for 45 years and this is the most impressive system I have ever encountered.

    Stephen K –

  16. David Reckamp –

    This is my second Eaton Polar compressor. First time trying silent air system. Love my old one and I’m sure I will love this one. It’s definitely a lot less noise and compared to the old compressor at my shop which is not my first Eaton/Polar it has a lot more kick. I was expecting that going from a 10.3 CFM to 31.00 CFM. My fist one is still running great at home. Can’t wait to see how the noise sounds with all the doors closed in this coming winter. Would definitely recommend Eaton Compressor!!!!

    David Reckamp –

  17. Mark A. –

    I could not be more pleased with the compressor. The quietest operating compressor I’ve ever had. Sales and support after the sale have been excellent. Good people that are knowledgeable about their products. This compressor has far exceeded my expectations. Wish I would have installed one sooner. I highly recommend.

    Mark A. –

  18. Michael Kalinowski (verified owner) –

    Just installed this in my Hobby Farm Shop and it is amazing. It is as much power as I could ever use and it leaves room to tackle bigger projects in the future. The quality is outstanding and it truly is quiet.

    Michael Kalinowski –

  19. Mark A. –

    Excellent compressor. Very quiet compared to my old big box store compressor. Excellent sales staff answered all my questions and were very knowledgeable. I would recommend to anyone.

    Mark A. –

  20. Adam –

    Quality built compressor, pumps up quick, recovers quick, definitely an upgrade from my 40 year old emglo, very quiet too! Would recommend to anyone in need of a compressor

    Adam –

  21. Justin –

    Customer support has to be one of the best I’ve ever had to deal with, and the compressor is by far the best we’ve had so far. The compressor is so quiet I can talk on the phone while it’s running and the person on the other end doesn’t even know it.

    Justin –

  22. Hector Rivera –

    Purchase: very easy, straightforward with no issues.
    Delivery: picked up myself, coordination and pickup was very easy.
    Compressor: all I can say is amazing. This thing is a monster. Very well built, extremely quiet and performs amazingly well providing air to my plasma table.
    Maintenance: super simple with their scheduled maintenance shipments.
    Very pleased and highly recommend to anyone looking for a serious performing Compressor.

    Hector Rivera –

  23. Hector Rivera –

    Excellent built product. Everything about it is top quality

    Hector Rivera –

  24. Michael Holmes (verified owner) –

    Customer service was excellent from start to finish. I had high expectations for this compressor, and those expectations were exceeded. Absolutely love my new air compressor.

    Michael Holmes –

  25. Jason ford –

    This is the quietest compressor I have ever been around! It is built great and looks super durable! No doubt it will last me a very long time! Super happy with this product!

    Jason ford –

  26. Ken Hoffman (verified owner) –

    This compressor is awesome, and quiet. Check the competition and you will come back and buy this one. Pressure lubricated four-cylinder pump
    should be long lasting. Very happy with this purchase and when I saw, Christian based company, well, that just made it even better. God Bless!

    Ken Hoffman –

  27. William Sigley –

    Bought a 7.5hp vertical with the quiet air feature. This thing is a BEAST! It’s so quiet and honestly the power shocked me! I bought it to power a vapor blasting cabinet and it is more than adequate. Do yourself a favor and get this

    William Sigley –

  28. Craig –

    Great compressor, very happy with it. Very good product and very helpful customer service.

    Craig –

  29. MARTIN W SANDERS –

    So glad I did my research and found this Eaton Polar compressor! Best decision I made. I was super impressed with the packaging when it arrived. I was hoping it was going to be as quiet as everyone said it would be and I was pleasantly surprised. I love it so far and is an awesome addition to my shop! My buddies are jealous.
    Customer support has been outstanding, and they called to follow up on my order and ensure that I had everything needed for my first oil change in advance.

    MARTIN W SANDERS –

  30. Rich Schendel –

    I purchased a single phase, 7.5hp, 80 gallon tank , positive lube, 10hp06D pump , 31cfm, air compressor…
    Model PPE0708V1
    1st off let me say : Polar Air is really great to work with !
    The people are courteous and willing to help !
    The compressor is very quiet , for its size.
    It is about 1/2 as noisy as the Quincy QT-5 that it replaced !
    it pumps up very quickly !
    My shop uses around 27cfm, and it keeps up well !
    I am very happy with the delivery, parts are shipped quickly ( oil, filters , etc )
    So far it is runny beautifully, no problems !
    I would recommend them to anyone that needs an air compressor !
    Rich

    Rich Schendel –

  31. Rich Schendel –

    I purchased this compressor a few weeks ago.
    I really like it so far. It is extremely quiet.
    The people at Polar Air are really easy to deal with..
    This compressor really pumps the air, I use around 27 cfm’s , and it seems to keep up with no problem.
    I would recommend this company to anyone that is looking for a compressor !

    Rich Schendel –

  32. Matt Ehlebracht –

    Quick, efficient shipping and very helpful sales associates. If you’re not sure which compressor to purchase, out of ALL their options, you are sure to find help via e-mail or phone! Very happy with my decision to buy from Eaton.

    Matt Ehlebracht –

  33. Craig Zenner –

    I bought this during the summer and have had some time to use it. This compressor is like everyone says, its a beast! Has handled all of my media blasting. I wanted something that wasn’t going to run out of air and this fit the bill. It is so much quieter than other name brand compressors. Hook up was easy other than getting the correct cable wiring. Deliver was quick too! If you need a compressor you should purchase and Eaton Compressor. Megan did a great job communicating with me during the purchase. 1st class.

    Craig Zenner –

  34. jason Curtis –

    I’ve got almost this same one just a lot older! got it back in the 90’s and it is still going strong! If I ever need another this is who I will buy it from!!!

    jason Curtis –

  35. D Cunningham –

    I purchased this unit with high expectations and this compressor has exceed them. I bought this as a homeowner to replace my small 29yr old oil-less compressor. Was purchased to do small sandblasting jobs. While continuously sandblasting, this unit actually cycled on and off. With such capacity, I am now adding a compressed air cooled sand blasting hood. The quality of this unit is far above what you see in the box stores and other stores. Would highly recommend this unit.

    D Cunningham –

  36. Christopher Pratt –

    I couldn’t be happier with the compressor or the purchase experience. These compressors are built to order so expect about 4 weeks from time of order to delivery. The quality of this compressor is second to none and well packaged. I have no complaints.

    Christopher Pratt –

  37. Kevin Lopez –

    Compressor is a beast, I will never need to buy another one. Will easily fulfill all of my home shop needs!

    Kevin Lopez –

  38. kailen withers –

    bought this compressor to replace the one currently in the shop. what a differenCE!! super quiet, fills fast, keeps up with everything we need it for, seriously built like a tank. very impressed. happy with purchase, buy once cry once.

    kailen withers –

  39. Mel Dalby –

    After getting my 7.5 hp compressor up a running, the only thing I could think is why didn’t I get one sooner. It’s very quiet and pumps the 80 gal tank from 0-150 in about 3 minutes. I love it. Thanks eaton for s great product. Special thanks to megan for keeping me updated on my order.

    Mel Dalby –

  40. Nick –

    Works great! Very quite, well made.

    Nick –

  41. Dave Echols –

    Have had this now about 8 months and must say it has exceeded all of my expectations. It is quiet, AIR VOLUME is fantastic and IT’S been trouble free. Very well built. I only wonder why I did nt get one sooner…

    Dave Echols –

  42. Jamie Walters –

    Great air compressor. Very quiet very smooth . Twice the quality and features as anything at the box stores. Auto drain feature is great also. More air than i can use with a blast cabinet and Spray booth

    Jamie Walters –

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