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5.5 Gal. 1.0 HP Ultra Quiet and Oil-Free Air Compressor
  • California Air Tools
  • Model 5510SE
  • Internet #205602927
  • Store SO SKU #

5.5 Gal. 1.0 HP Ultra Quiet and Oil-Free Air Compressor

Was  $159.88
$127.90 /box

Save $31.98 (20%)  through 12/04/2016

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Discontinued Model:

Model # 6310

Internet #202977399

California Air Tools 6.3 gal. 1 HP Ultra Quiet and Oil-Free Steel Tank Air Compressor
0743369763109

Discontinued California Air Tools

6.3 gal. 1 HP Ultra Quiet and Oil-Free Steel Tank Air Compressor

  • One of the quietest compressors in the industry
  • Lightweight for easy transporting
  • Oil-free design is engineered for performance and durability

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Product Overview

The California Air Tools 6310 Ultra Quiet Air Compressor is designed to be one of the quietest air compressors in the industry having only 60 decibels of sound. This air compressor makes less sound than a normal conversation (65 decibels). The powerful 1 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 6.3 gal. steel horizontal air tank with wheel kit provides extra air capacity and easy portability. The added water trap helps remove excess water from the air. This air compressor is ideal for anyone working where noise is a major issue.

  • Ultra quiet only 60 decibels
  • Oil-free pump for less maintenance and repair costs
  • 6.3 gal. steel horizontal tank has 2 wheels and 1 handle
  • Lightweight for easy transporting - 49 lbs.
  • Powerful 1 HP (rated/running) 2 HP (peak) motor
  • 3.80 CFM at 40 psi and 2.35 CFM at 90 psi/maximun pressure - 120 psi
  • Two pressure control gauges and one water trap
  • One 1/4 in. universal quick connector
  • Low amp draw - 7.6-amps/less heat - dissipates heat more efficiently
  • Extra-large dual piston pump for increased compression/extra long pump life of over 3000 hours
  • Thermal overload protector/less time to fill the tank - only 155 seconds
  • Low vibration - motor speed of 1680 RPM
  • Oil-free pump allows you to use in different temperatures and terrains
  • Easy to use ball drain valve
  • Need help? CLICK HERE to view our Air Compressor Buying Guide

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Customer Questions & Answers

30 Questions93 Answers

Customer Questions & Answers

6.3 gal. 1 HP Ultra Quiet and Oil-Free Steel Tank Air Compressor
6.3 gal. 1 HP Ultra Quiet and Oil-Free Steel Tank Air Compressor

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9 answers

how long will this product hold "air" once unplugged?

This question is from 6.3 gal. 1 HP Ultra Quiet and Oil-Free Steel Tank Air Compressor
Asked by
Hayward CA
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July 25, 2014
how long does it take for the 6.3 to fill from an empty start?
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Answers (9)

Asked by
mid-Minn
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Home Improvement Profile: DIYer
December 31, 2015
Answer: 
You can see my review about this very thing from a few days ago but to recap:
Out of the box I let it fill to shut-off at 110 psi and it held 109 psi for the next 3 weeks and still hasn't lost any. That says a lot about quality control.
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Asked by
Colorado
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February 11, 2015
Answer: 
If you get all connections you make to it air tight it will still be at around 125 psi or more 12 hours later. straight out of the box it holds it for around 2 days
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Asked by
Kokomo, IN
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December 23, 2014
Answer: 
That really depends on how tight the rest of your system is This unit will stay at pressure several days unplugged all by itself with no leaky components attached, but you really don't want to leave compressors like that. You should drain them after use. All compressors will end up with water in them from the compression process. Empty them at least once a week.
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December 5, 2014
Answer: 
From Empty to Full 130 seconds
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Asked by
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September 28, 2014
Answer: 
Mine takes a couple of minutes to fill from COMPLETELY empty.If you BACK-OFF the regulator knob to zero psi,with a FULL tank,mine has held for 3 days so far.Tomorrow it will be 4 days without use,and I'll bet it will STILL hold @120psi. when I check the main gauge.
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Asked by
The OC
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August 12, 2014
Answer: 
With proper sealing of all fixtures, (hose, quick coupler, both male and female) I have left mine with a 50' hose attached and it held air for at least 3 days.
It requires about 2 minutes to fill from empty.
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Asked by
Springfield, Oregon
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Home Improvement Profile: DIYer
August 12, 2014
Answer: 
Indefinitely. It is important that attached quick release valves and tools be connected properly, using either Teflon tape or plumber's thread seal compound (as I used) on all threads. Failure to do so will cause slow air leakage at those points. Of course, that's not the fault of the compressor. Having done so, I haven't noticed any air leakage. As far as filling the tank, I haven't timed this, but from Read More
Indefinitely. It is important that attached quick release valves and tools be connected properly, using either Teflon tape or plumber's thread seal compound (as I used) on all threads. Failure to do so will cause slow air leakage at those points. Of course, that's not the fault of the compressor. Having done so, I haven't noticed any air leakage. As far as filling the tank, I haven't timed this, but from an empty take it seems like maybe a couple minutes. Read Less
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Asked by
Austin, TX, USA
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Home Improvement Profile: DIYer
July 27, 2014
Answer: 
Although I've never timed it, but I believe it fills up in less than 5 minutes easily. The quietest 5 minutes you'll spend next to a compressor. As far as holding air, I bleed off the air when storing it. I have had it hold air over night without loosing any pressure. Hope this helps.
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Asked by
Columbia, MO, USA
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Home Improvement Profile: DIYer
July 26, 2014
Answer: 
mine doesn`t hold very long maybe 30 minutes the leak on mine was around the regulater & can be fixed with pipe dope but i`ve just not done it be careful because the fittings look plastic & could strip threads- with an empty tank it takes about 3 to 4 min
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6 answers

Is it really 'ultra quiet'?

This question is from 6.3 gal. 1 HP Ultra Quiet and Oil-Free Steel Tank Air Compressor
Asked by
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December 12, 2015
I would like to airbrush miniatures indoors, but my workspace is right next to where my baby sleeps. My current compressor is sort of quiet, but would assuredly wake him. Can anyone tell me how quiet it actually is, perhaps in dB SPL?
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Answers (6)

Asked by
Texas
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Home Improvement Profile: DIYer
January 19, 2016
Answer: 
No joke, if "I" were tired enough, I could sleep next to it! It's so quiet I had to have my good neighbor/friend's turn it on just to brag.
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Asked by
Petaluma, CA
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Home Improvement Profile: DIYer
December 30, 2015
Answer: 
I've read this unit is rated at 65 or 67 decibels. I've also read you can have it in a room adjacent to where there is a sleeping baby without waking the baby (seriously, I read that somewhere). But there's no guarantee it won't wake your infant in your particular setting.
This thing is ultra quiet only in contrast to a typical air compressor. It is hard to describe how loud it is objectively. It's like Read More
I've read this unit is rated at 65 or 67 decibels. I've also read you can have it in a room adjacent to where there is a sleeping baby without waking the baby (seriously, I read that somewhere). But there's no guarantee it won't wake your infant in your particular setting.
This thing is ultra quiet only in contrast to a typical air compressor. It is hard to describe how loud it is objectively. It's like a kitchen mixer at low speed, or a VSR drill at a lower speed. You'll know its running when its on. But you can carry on a conversation next to it without raising your voice or straining to hear. On a floor without carpeting you'll feel the vibration. But it isn't loud.
The company that makes these compressors, California Air Tools, also makes cabinets to enclose an air compressor to keep them extra quiet. These enclosures can be seen on their web site. Perhaps you could afford one of these enclosures - or build one out of plywood, 2x4's and acoustic foam. Just keep in mind the compressor is supposed to have a certain amount of free air clearance to draw in fresh air (consult the owners manual, available at the aforementioned web site). So a home-built enclosure may need to be outfitted with a fan to bring in fresh air -- one with a with a CFM rating sufficient to satisfy the needs of the compressor. Read Less
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Asked by
Apache Jct. AZ
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Home Improvement Profile: DIYer
December 24, 2015
Answer: 
Ultra Quiet depends on your interpretation. I am very pleased with the low, although unknown, dba of mine. I couldn't sleep next to it but, compared to my old oil-less, it's a "sleeper". I would not recommend it for your application, the off/on cycles would be very disturbing. You need a specific compressor for your air brushing.
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December 15, 2015
Answer: 
Very quiet for a compressor of this size - mine is used indoors. You might consider using foam pads under the wheels and foot of the unit to minimize vibration to the floor (it is a reciprocating machine operating at fairly high rpm and vibrates a little). It is fairly large and might disturb a sleeping child, however.
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December 14, 2015
Answer: 
Thank you for the interest in the California Air Tools 6310 Ultra Quiet & Oil-Free Air Compressors.
The 6310 produces 60 decibels of sound and is the same sound as a normal conversation.
60 decibels is very acceptable for anyone using an air compressor inside.
If you feel that a normal conversation is still to loud I suggest looking at the California Air Tools Sound Proof Cabinet Air Compressors.
The
Read More
Thank you for the interest in the California Air Tools 6310 Ultra Quiet & Oil-Free Air Compressors.
The 6310 produces 60 decibels of sound and is the same sound as a normal conversation.
60 decibels is very acceptable for anyone using an air compressor inside.
If you feel that a normal conversation is still to loud I suggest looking at the California Air Tools Sound Proof Cabinet Air Compressors.
The California Air Tools 8010SPC is a 1.0 Hp 8.0 Gal Ultra Quiet & Oil-Free Air Compressor in a Sound Proof Cabinet.
The 8010SPC is only 40 decibels. This sound level is the lowest in the industry.
Read Less
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Asked by
Fulton, NY
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Home Improvement Profile: DIYer
December 13, 2015
Answer: 
If you watch the video where you see the picture of compressor, they demonstrate the Db level.
In addition if you were to place it on rubber floor mats (the kind that you stand on) as far from baby's area (opposite wall) you should be OK as most noise would be transfered through the floor.
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6 answers

Does this air compressor come with a water trap or do I need to buy that seperate?

This question is from 6.3 gal. 1 HP Ultra Quiet and Oil-Free Steel Tank Air Compressor
Asked by
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June 29, 2015
From the picture given it looks like it,but in the description it says that there are not extra parts (Home Depot website).
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Answers (6)

December 15, 2015
Answer: 
My unit came with a water trap installed upstream of the regulator. There is an additional moisture blow-down valve on the bottom of the tank.
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Asked by
Gainesville, va
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November 15, 2015
Answer: 
Yes it comes with a water trap.
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July 1, 2015
Answer: 
Thank you for the interest in the California Air Tools Ultra Quiet & Oil-Free Air Compressors.
The CAT-6310 Ultra Quiet Air Compressor has attached to the air compressor a water trap.
The water trap is located under the regulator knob.
Thank you
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July 1, 2015
Answer: 
This product does include a water trap.
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Asked by
Maine
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July 1, 2015
Answer: 
Yes. The one I got had a water trap installed.
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Asked by
delray beach, fl
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Home Improvement Profile: Other
July 1, 2015
Answer: 
No, it does not come with a water trap.
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6 answers

Use with Nail Guns?

This question is from 6.3 gal. 1 HP Ultra Quiet and Oil-Free Steel Tank Air Compressor
Asked by
Alexandria, VA
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December 28, 2014
How does this compressor work with 2 inch "nail" guns, trim guns and staplers??
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Answers (6)

Asked by
Ocala, FL
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April 28, 2015
Answer: 
It depends on the size of nail gun you use. If you are using a gun for concrete nails or large nails, no.
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Asked by
Tewksbury
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March 3, 2015
Answer: 
Designer Workroom
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Asked by
Colorado
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February 11, 2015
Answer: 
Yes you could but if sound is not an issue any other compressor can do the job. I like it foir indoor work because it is extremely quiet
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Asked by
Central Florida
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January 20, 2015
Answer: 
Check the CFM rating of your gun. It will definitely run brad and finish nailers. It may not be able to keep up with some roofing and framing applications in a production environment.
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Asked by
Minnesota
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January 5, 2015
Answer: 
We've used it with both our nail gun and trim gun. We did have to turn up the pressure a little because we were nailing through to hundred year old wood that's gotten tougher over time.
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Asked by
ohio
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Home Improvement Profile: DIYer
January 2, 2015
Answer: 
It works great for nail guns. I used this for my framer, all the way down to finish guns. This is actually what I bought the compressor for.
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Customer Reviews

Rated 4.6 out of 5 by 214 reviewers.
Rated 3.0 out of 5.0 by Good compressor, however... This compressor is just as quiet as advertised and mine worked well for a couple of years. One day it just stopped. I contacted California Air Tools to find out where to get it repaired and was told there's no one around where I live that can take care of it. Too bad, so sorry. End of story. For this reason I'll only give it three stars even though the compressor, when it worked, was excellent. As far as value is concerned, I didn't realize I was getting a disposable compressor when I purchased it. So, the value to me is poor. August 8, 2016
Rated 1.0 out of 5.0 by Horrible outgassing The wheels and front bumper have the worst outgassing I've ever experienced. The quiet operation of the motor is defeated by the fact that the compressor cannot be brought indoors with the wheels on. Buy new wheels on your dime or drag it around. The wheels will truly fog out a room with a chemical odor. The manufacturer has ignored repeated attempts to contact them regarding the issue. Although HD has discontinued this product, I'd be wary of purchasing any of CAT's products. August 4, 2016
Rated 5.0 out of 5.0 by Great Low Capacity Compressor Great for tire and toy inflation. If you have very limited needs for compressed air, it fills quickly (120sec to 120lbs) and is quiet (for a compressor). You could definitely have this unit in a community area and carry on conversation and not be irritated by the level of the noise. I did return this unit for a 2 HP 10 GAL unit only due to the limited capacity of this unit. January 5, 2016
Rated 5.0 out of 5.0 by Finally, I found a very quiet air compressor I bought this product because it was very quiet and the 6.3 gallon tank had the capacity that I needed. This compressor will be primary used for blowing water out of the nooks and crevices of a recently washed car. It works great. I will also use this compressor to fill high PSI tires (light duty truck and travel trailer). I also like the compact size of this compressor. The pancake style of compressors that Home Depot carried in store were too wide for my storage considerations. My only complaint was that I had to bend over too much to move the compressor. I am 6 foot. I had to order this product online. Chose Home Depot because if I did not like it, I could return it. Too bad that Home Depot does not carry it in store. July 6, 2015
Rated 5.0 out of 5.0 by Great, affordable replacement Compressor My original compressor made by SilentAire broke after only 3 short years of intermittent use. Needing a replacement rather quickly, I came across the California Air tools line. I needed a quiet compressor as I use it indoors, and although this one still makes noise, it is pretty quiet! It also puts out great pressure and the wheels make it easy to use around the studio. The only downside was the 1/4 universal adapter...it wasn't "universal" for fitting my spray gun, but a quick run to the hardware store and $1.50 later, the compressor works great. Even has a light indicator to show that the fuse is working! June 18, 2013
Rated 5.0 out of 5.0 by best option, but still 'loud' I am using this air compressor in a retail environment. When it kicks on, it is 'loud' as one might expect an air compressor to be, but it is still the quietest unit I've ever worked with. One can carry on a conversation within a few feet of it running. Perhaps some further modification might quiet it more? I've removed the plastic shielding from the cooling fins and that did reduce some vibration noise. The wheels may come off next.... I'm sure this is against the manufacturers recommendations so one assumes the liability form there out.... February 23, 2016
Rated 2.0 out of 5.0 by Cat-6310 Air Compressor After much research, I purchased the 6310 primarily due to statements about how quiet it is. I have an older pancake air compressor that I don't like because it's so loud, and I thought this unit would be a pleasant improvement. I unboxed it, installed the wheels and air filter, then turned it on. It was much louder than expected. It only took a second to realize that one of the gauges was apparently damaged during shipping and it was barely still connected to the unit. It rattled so loudly that any sound savings from the quiet engine were lost. If I held onto the gauge to stop the rattling, then yes, this is a very quiet machine. I returned it and got my money back. December 12, 2015
Rated 5.0 out of 5.0 by Worth it for the quiet This is a great compressor for use around the house. I used it to operate a roofing nail gun and to fill a car tire, and it performed just fine. I would not throw it in the back of a truck or trailer without protecting it somehow. I had a brief scare when I left the compressor unplugged with a leaky air hose connected. The tank pressure dropped to the point where the spring-loaded valve on the water trap opened and started hissing. It was a little unnerving to have an air compressor spontaneously start hissing, but I was relieved when I figured out what was going on. Now I leave the air hose disconnected when not in use. A couple reviewers have complained about the wheels rubbing on the tank. I think it might be due to installing the wheels backward (the wheels are not symmetrical). I've included a picture of how I installed the wheels on my unit, and they haven't rubbed at all. July 15, 2013
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