0743369746201

California Air Tools

Model 4620A

Internet #202977405

4.6 Gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor

$320.42 /box
  • One of the quietest compressors in the industry
  • Lightweight, rust-resistant tank is easy to transport and store
  • Designed for you to use more air tools at the same time

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Product Overview

The California Air Tools 4620A Ultra Quiet air compressor is designed to be one of the quietest 2 HP electric air compressors in the industry having only 70 decibels of sound. The powerful 2 HP motor operates at only 1680 RPM creating less noise and less wear. The oil-free Dual Piston Pump System is engineered for high performance and durability. The oil-free pump allows you to use in different temperatures and uneven terrains. The 4.6 Gal. aluminum rust resistant twin air tank will fill (from empty to full) in less than 60 seconds. The control panel comes complete with two 1/4 in. quick release connectors that will allow you to use up to 2 tools at the same time. This air compressor delivers 5.30 CFM at 90 psi allowing you to use larger air tools and more air tools at the same time. Powerful, Compact and Portable this air compressor is ideal where noise is a major issue.

  • Ultra-quiet only 70 decibels
  • Oil-free dual piston pump for less maintenance and longer life
  • 4.6 Gal. rust free aluminum twin tank
  • Lightweight for easy transporting - 64 lbs.
  • Powerful 2 HP (rated/running) motor
  • 7 CFM at 40 psi and 5.30 CFM at 90 psi/maximum pressure - 125 psi
  • 2-pressure control gauges and two 1/4 in. universal quick connectors
  • New (2014) easy start valve, allows for a no load start, for a low start up amp draw, only 14-Amp
  • Extra-large dual piston pump for increased compression and extra-long pump life of over 3000 hours
  • Less time to fill the tank - only 60 seconds from empty to full
  • From 90 psi to 120 psi (kick off) 20 seconds from 120 psi to 90 psi (kick on) 10 seconds
  • Low vibration - motor speed of 1680 RPM
  • Oil-free pump allows you to use in different temperatures and terrains
  • Thermal overload protector
  • Easy to use ball drain valve
  • Need help? CLICK HERE to view our Air Compressor Buying Guide

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Customer Questions & Answers

8 Questions22 Answers

Customer Questions & Answers

4.6 Gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor
4.6 Gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor

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5 answers

What is the duty cycle of this compressor

This question is from 4.6 Gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor
Asked by
Bauxite, AR
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July 25, 2015
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Answers (5)

Asked by
Bauxite, Ark
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Home Improvement Profile: Professional
November 3, 2015
Answer: 
Hello folks and thanks for your answers. I found the answer in the manual. It says it has a 50% duty cycle. Don't know where California Tools got their info.
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Asked by
Naples, FL
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Home Improvement Profile: DIYer
October 30, 2015
Answer: 
It seems that I gave a positive review too quickly!
Its been a little over 90 days sice I recieved it and I have used it to drive 3 sticks of 1.5" narrow crown staples building a shipping crate.
The motor still runs fine, but the compressor failed with a loud screeching noise until the motor trips a breaker due to the high load.
I would say I got about 1 hour or so of runtime before catastrophic Read More
It seems that I gave a positive review too quickly!
Its been a little over 90 days sice I recieved it and I have used it to drive 3 sticks of 1.5" narrow crown staples building a shipping crate.
The motor still runs fine, but the compressor failed with a loud screeching noise until the motor trips a breaker due to the high load.
I would say I got about 1 hour or so of runtime before catastrophic failure.
I am bringing it back to Home Depot for repairs - we will see how that goes - I hope they stand behind the product.
Sorry for misleading you on the initial quality, but I can say that it REALLY did llok good when I received it - you just cant see into the internals to determine the build quality there.
Terry Read Less
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Asked by
chesyerfield Va
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Home Improvement Profile: Professional
August 25, 2015
Answer: 
california air tools told me on the phone that this compressor has a %75 duty cycle
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Asked by
Philadelphia
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July 27, 2015
Answer: 
I do not have an exact answer, have not found that exact info nor do I have a method of calculating it, BUT here is what I can say.
I know what you are asking and here is my example.
I used the compressor with a trim gun...no issues...I'd shoot about about 25 if not more nails, before it would start up again, and it fills the tank in about 35 sec.
I used it last week with a Husky LVLP spray gun to paint
Read More
I do not have an exact answer, have not found that exact info nor do I have a method of calculating it, BUT here is what I can say.
I know what you are asking and here is my example.
I used the compressor with a trim gun...no issues...I'd shoot about about 25 if not more nails, before it would start up again, and it fills the tank in about 35 sec.
I used it last week with a Husky LVLP spray gun to paint some door frames and stuff. It works. The gun needs about 4 CFM to run properly. The compressor would fill and the next time it would start would be in another 3..4 min. That is if you spray normally (spray / release/spray) not keep the throttle open all the time.
So the cycle in this case would be 45 sec to fill (90 to 120 PSI) and about 3 min stop. That would be a cycle of about 40 %more or less.
At this point I can say both pistons were hot, but the compressor did not fill like it was struggling. More room left to push.
I hope i could help.
Cris
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July 27, 2015
Answer: 
Thank you for the interest in the California Air Tools 4620A Ultra Quiet & Oil-Free 2.0 Hp Air Compressor.
We do not state duty cycle because there are many variables that can effect performance and run time of the air compressor. Can you please tell us the CFM and PSI you are using?
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4 answers

Use for roofing nailer

This question is from 4.6 Gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor
Asked by
Bahamas
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October 31, 2015
How often will this run...nail shots before it starts recovery? I need an aluminum tank, etc due to my proximity to the sea...thoughts?
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Answers (4)

November 2, 2015
Answer: 
Thank you for the interest in the California Air Tools 4620A Ultra Quiet & Oil-Free Air Compressors.
Unfortunately there are too many variables to give you a good time.
The brand and model of the gun, the CFM needed and the speed you nail all play a role.
As mentioned by the person below 90 PSI-120 PSI take 20 seconds and to fill the tank from empty to full 60 seconds.
Please contact us if you have any
Read More
Thank you for the interest in the California Air Tools 4620A Ultra Quiet & Oil-Free Air Compressors.
Unfortunately there are too many variables to give you a good time.
The brand and model of the gun, the CFM needed and the speed you nail all play a role.
As mentioned by the person below 90 PSI-120 PSI take 20 seconds and to fill the tank from empty to full 60 seconds.
Please contact us if you have any other questions.
Read Less
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Asked by
Naples, FL
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November 1, 2015
Answer: 
When it worked, the cycle time was not bad at all shooting 1-1/2 inch narrow crown staples - way better than the Porter Cable pancake it replaced...
I thought it was an excellent piece of equipment until the air compressor head started screeching and the breaker popped.
The external quality of build was great - but - I only got about an hour of run-time before the compressor part died (the motor was Read More
When it worked, the cycle time was not bad at all shooting 1-1/2 inch narrow crown staples - way better than the Porter Cable pancake it replaced...
I thought it was an excellent piece of equipment until the air compressor head started screeching and the breaker popped.
The external quality of build was great - but - I only got about an hour of run-time before the compressor part died (the motor was still good but the compressor made a God-Awful screech and the breaker popped.
Thank God I bought it from Home Depot and was able to return it without hassle or expense!
I wish it would have been a good one - while it was working I was really impressed.
I'll probably get the noisier Makita 3hp mac5200. Read Less
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Asked by
Philadelphia
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Home Improvement Profile: Professional
November 1, 2015
Answer: 
I mainly use this for spraying...so I use a lot of CFM and it keeps up decently with my sprayer. That being said, If you run 1 nailer...I do not see any issues there. I once used a Ryoby vertical compressor to nail a roof for a shed..no issues..and that had a 1/4 HP motor, NOW imagine this at 2HP.
Also, I sometimes add another 7 gal tank in the game for extra volume. Obviously it takes a bit longer to
Read More
I mainly use this for spraying...so I use a lot of CFM and it keeps up decently with my sprayer. That being said, If you run 1 nailer...I do not see any issues there. I once used a Ryoby vertical compressor to nail a roof for a shed..no issues..and that had a 1/4 HP motor, NOW imagine this at 2HP.
Also, I sometimes add another 7 gal tank in the game for extra volume. Obviously it takes a bit longer to reach high pressure ( which is what you need for nailers..min 90..high 120 PSI).
So...if you run 1 nailer...go ahead.....2 nailers..depends on the speed of your guys. If they keep their fingers on the trigger constantly....obviously the compressor will be running like crazy to keep up with them, but for 1 nailer....I don't see an issues.
Then again..it's HD...don't like it...just take it back.
I wasn't sure either how silent it is (yes, it's silent, for a compressor) so I had it delivered to HD, went there, plugged it in to see how loud it get's...or not in this case, and only then I took it out of the store.
Hope my answer helps. Read Less
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Asked by
chesyerfield Va
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Home Improvement Profile: Professional
November 1, 2015
Answer: 
it depends on what nails you're shooting . my 4620A produces more shots with my finish nailers (16 , 18 & 18 narrow crown) than my framing nailer . it also depends on how fast you shoot . i can tell you this compressor fills from 0 to 120psi in 63 seconds and takes about 20 seconds to top off and it's very quiet compared to anything else i've heard running . i have yet to have to wait for the compressor Read More
it depends on what nails you're shooting . my 4620A produces more shots with my finish nailers (16 , 18 & 18 narrow crown) than my framing nailer . it also depends on how fast you shoot . i can tell you this compressor fills from 0 to 120psi in 63 seconds and takes about 20 seconds to top off and it's very quiet compared to anything else i've heard running . i have yet to have to wait for the compressor to top off for anything i've shot .
however , roofing guys will shoot 100+ shots per minute and i'm not confident saying this will keep up even with it's uber fast refill time . but i don't know that !! call california air @ (619) 240 - 7363 and they can tell you for sure . Read Less
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4 answers

length of use before motor cycling?

This question is from 4.6 Gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor
Asked by
PGH, PA
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August 17, 2015
I will be using an air tool that runs constantly at 1.25CFM @ 37PSI. Can you tell me how long with a full tank the tool will run before the compressor kicks on, APPROX.
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Asked by
Santa Monica,Ca
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October 15, 2015
Answer: 
This compressor is pretty fast for a tiny unit. But it cycles on and off entirely too much. I have had nothing but problems with mine. It sometimes kicks on at around 100 PSI and stops at 105 PSI . It kicks on when you plug in a hose or a tool. I would not purchase one.
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Asked by
Naples, FL
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September 1, 2015
Answer: 
With pneumatic stapler/brad nailer, several minutes - for just blowing dust - about a minute.
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Asked by
chesyerfield Va
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August 25, 2015
Answer: 
it depends on the tool . the tools maker should be able to tell you . what ever they say divide it by half ....... if you get more cool beans
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Asked by
Philadelphia
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Home Improvement Profile: Professional
August 18, 2015
Answer: 
I'd say above 3 min. Here is why. I tried it with a LVLP gun that uses about 4 CFM / 50 PSI and I can spray for about 1 min...1 1/2 min before pressure drops to 90 PSI and compressor kicks in.
Think of this compressor as the little amazing guy who does great things (in his league) but will never compare to the big guys...it was never built to compete with big CFM compressors.
Hope my answer helps.
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3 answers

Does this product have a 4-pole induction motor?

This question is from 4.6 Gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor
Asked by
Acton, MA
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June 17, 2015
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Asked by
chesyerfield Va
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August 25, 2015
Answer: 
http://www.californiaairtools.com/ultra-quiet-oil-free-air-compressors/2-0-hp-air-compressors/cat-4620a/
it spins at 1680 RPM on 110v / 60 hz so it looks to be a 4 pole motor .
https://www.physicsforums.com/threads/2-pole-4-pole-8-pole-motors.509564/
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Asked by
Philadelphia
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August 18, 2015
Answer: 
Sorry. No idea..I haven't taken it apart yet.....still works dandy :)
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June 17, 2015
Answer: 
Thank you for the interest in the California Air Tools 4620A Ultra Quiet & Oil-Free 2.0 Hp Air Compressor.
Yes,the 4620A uses a 4 -pole motor operating at 1680 RPM for less vibration and noise.
Yes, the 4620A has an induction motor. This eliminates brushes from wearing out.
Thank you
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Customer Reviews

Rated 4.5 out of 5 by 66 reviewers.
Rated 5.0 out of 5.0 by Awesome Quiet and fast. The chuck did leak as others wrote but I just made sure it returned to seat and it hasn't happened again. June 21, 2016
Rated 5.0 out of 5.0 by excellent product the compressor was easy to assemble and is very quiet when in operation June 7, 2016
Rated 5.0 out of 5.0 by .Builder / remodeler since 1987 So far it is performing as expected, I will know more come this fall after a summer of jobsite abuse and use. I have had many compressors over the years, this is by far the quietest and has good power. May 10, 2016
Rated 3.0 out of 5.0 by Great mechanics, aesthetically challenged We are very pleased with the performance of this compressor. It is indeed very quiet and more than enough power to run the plasma cutter we use with it. We were disappointed at the quality control, however. The base of the compressor was chipped and poorly constructed, which makes us worry about the quality of the parts we can't see (photo attached). We aren't particularly concerned about a paint chip on the base but we are a little nervous how the rest of the compressor will last in the long term. I would suggest Home Depot work with the manufacturer on quality control since this damage did not happen in shipping. October 21, 2014
Rated 4.0 out of 5.0 by Good quality good price great compressor but I had to return it. I bought it because of the low amp draw of 14 but it actually takes well over 20 plus amps at startup. My 2500 watt generator couldn't start it. Bought the 1 hp and works great. March 25, 2016
Rated 5.0 out of 5.0 by This product has great features. I needed a quieter compressor and this fits the bill. It is quiet enough that you can have a conversation right next to it while it is charging. It's great for blowing dust out of the garage and filling bicycle and other tires. Haven't tried it with a nail gun yet, but recharges in less than a minute. The aluminum tanks make me less worried about corrosion due to there always being water in the tank when I release the pressure at the end of the day. It have a very handy finger-switch for releasing the pressure. Much easier than the knurled fittings on most generators. I have it connected to a 50 retractable hose mounted to the ceiling. The compressor is small enough to fit under my workbench (picture). I couldn't be happier with this compressor. April 16, 2014
Rated 5.0 out of 5.0 by Very quiet compressor Great compressor, just don't like buying items from a huge box store like Home Depot. February 24, 2016
Rated 5.0 out of 5.0 by California My new California air compressor is doing a great job for me. It is plenty powerful and is also quiet. February 11, 2016
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