Single-Stage HVAC Vacuum Pump, 3.5CFM - Ideal for AC Repair Tools, Car AC Vacuum Pump, AC Vacuum Pump Kit, and Recovery Machine HVAC - Also Known as Bomba de Vacio A/C (TA350)

The Kozyvacu TA350 Single-Stage Rotary Vane Vacuum Pump has proven to be an exceptional tool for both professional HVAC technicians and DIY enthusiasts. Its robust performance and user-friendly design make it a standout choice in its category. CamelCamelCamel +8 YouTube +8 Desert Cart +8 Performance & Efficiency: With a free air displacement of 3.5 CFM and an ultimate vacuum of 150 microns, this pump delivers powerful and efficient operation. Users have reported that it pulls a full vacuum quickly, making it ideal for tasks like air conditioning servicing and refrigeration maintenance . Amazon +2 Galleon +2 eBay +2 Amazon Build Quality & Design: Constructed with a die-cast aluminum housing, the TA350 is both lightweight and durable. Its high torque design ensures easy startup and efficient operation. The pump also features an oil viewing window for monitoring oil levels and quality, and an angled oil drain valve for faster, more complete draining . CamelCamelCamel +3 Desert Cart +3 YouTube +3 Walmart.com +1 Galleon +1 Versatility: Beyond HVAC applications, this pump is versatile enough for automotive AC systems, wine degassing, epoxy resin degassing, and even medical and food processing tasks. Its adaptability makes it a valuable addition to various professional and home workshops. User Feedback: Customers have praised the TA350 for its quiet operation, sturdy build, and excellent value for money. Some have noted that it runs cooler than expected, even during extended use. However, a few users mentioned the emission of a fine oil mist during operation, which is common with rotary vane pumps. Final Thoughts: The Kozyvacu TA350 stands out as a reliable and efficient vacuum pump that caters to a wide range of applications. Its combination of performance, durability, and affordability makes it a top choice for those seeking a dependable vacuum solution.

I read the negative and average reviews. I was really concerned about buying a potential $60 paperweight. I used this way too many times in the past two weeks and am very satisfied with the results. Drop test - passed. Multiple uses - pass. Recommend - yes. I had an accumulator’s schrader valve stick which caused a leak. I have tools to replace the valve while leaving the system pressurized, but this required the accumlaotor to accept the valve and the replacement schrader valve to also be good. Fail and fail. Anyways enter the replacement accumulator and first attempt. The pump worked great and pulled a perfect vacuum. The motor was hotter than expected, but no issues. Charged the system and everything was roses and smiles. Two hours later and after a loud sound of rushing air, I discovered a spring fitting on the new accumulator failed and I lost my charge. Reset the connection and it passed the pull apart test. It appeared solid. Vacuum number 2 - worked great. I turned after pulling the vacuum and promptly sent the pump off the radiator falling to the ground. I got lucky with no damage to the pump or gauges. The gauge line sort of softened the fall. I began to recharge the system. One can in and I had to deal with another issue. Pop goes the same spring connection. Lesson one: don’t buy crap aftermarket AC stuff. Poor quality control. Bought a Motocraft and installed it. (Fit perfect) Vacuum number 3 and everything is still working great. The pump ran for over three hours in 95+ degree weather over the three vacuums. No noticeable oil loss. Solid vacuum. Met my needs and then some. I suspect there will be lemons in any process, but this one worked very well for my needs.

I've been using this pump for a few years primarily on vehicle AC systems. It has held up well with regular oil changes. HOWEVER, the best vacuum I can pull is 130 microns with a CPS VG200 connected directly to the pump. While anything under 500 microns is considered acceptable, the rating plate on the pump claims to be able to pull down to 37.5 micron (5pA). It does the job to get well below what is considered acceptable vacuum in the automotive and residential HVAC industry, however it would be nice to have a specification plate that is actually true. I'll ding a star for that, but have nothing else negative to say. Decent little pump for the money.

The pump arrived on time, and as usual was well packaged. It has only been able to pull my empty vacuum chamber down to -25.5 Hg, but that may be due to my lid seal. I plan to change out the lid seal and retest the vacuum pump. The pump looks good and quieter than I expected. When running, it does produce a very fine mist from the exhaust/oil fill port. I’m told this is completely normal. I’ll post a more in-depth review once I change the lid gasket on my chamber and do a few stabilizing batches. This will be the more in-depth review of the Kozyvacu TA350 after using it numerous times. I have been using it to pull vacuum in a 4”x12” clear PVC vacuum chamber that I built for wood stabilization. During my first runs, I thought this pump may not be able to do the job as effectively as I had hoped. I’m happy to report that is not the case. I’m not sure if it was the crazy Oklahoma weather conditions, the refinements I made to my chamber, or a combination of those, but I’m now able to pull vacuum down to -30 Hg, which is what I’m told is nearly perfect vacuum for the wood stabilization process. Not only does this little vacuum pump seem to be operating better with time, the fine mist I mentioned has stopped. All in all, I’m very pleased with this purchase, and would not hesitate to buy this same pump again. For less than 60 bucks, delivered to your door in a couple of days, this vacuum pump is the “Deal of the day” for anyone like myself who would rather build their stabilization system than buy a complete setup.

I had no issues with the pump. It sucked my honda civic system down to-30 very quickly. Ran pump for almost 1 hour straight with no overheating or cutting out. I will say it was 50 degrees outside when I used it. Pump makes some strange sounds when running however it did a great job. After 10 minutes or so the pump was not putting out any mist. The way I understand the manual once mist stops them moisture should be out of the system. The oil that's included was a little more than needed to fill the pump so I have extra if ever needed. Good pump for the occasional users.

This pump worked great. On calibrated manifold gauges it pulled 29.8 psi. You can't here it run from three feet away.. I have done 3 cars with it so far and have run it over 5 hours between the 3 cars without it shutting off or overheating. Maybe the difference between how i use it and some other people use it is i don't use the vacuum oil it comes with. I learned that you need to use the best quality oil you can buy for it and i buy the best i think there is. I don't know if amazon allows you to mention brand oil names here on this site. For the money it is going to be hard to beat. The instructions say's it has a filler plug for the oil to be put in but this one just has the red cap you unscrew from the top and install the oil. The instructions are not clear on how far up to put the oil. I fill to the bottom line and run it 5 minutes, then i fill it half way between the bottom line and the top line. It never used any oil working on all three cars i did. Now i will change the oil. It never got so hot that i couldn't just lay my hand on it. Great little machine.

It works exactly as the description says. I used it to vacuum my R12 AC system on my Mazda RX7 and it worked great and pumped down the vacuum to 29.5 within a few minutes. Whenever you do this job on your car, be sure to vacuum it down very well like that, and I recommend leaving it hooked up and under vacuum for a few hours. This way if it holds full vacuum you'll know there are no leaks in your AC system. Lots of tips say 30-45 minutes under vacuum is enough but I like to leave it a lot longer so I can be positive nothing is leaking. I had my compressor "rebuilt" and the first shop did a bad job of it and it still leaked (I had replaced some of the AC hoses too). I had another shop do a great rebuild on it and this time, with the help of this vacuum pump, I verified there were no more leaks. Well worth the purchase.

I bought this vacuum pump to stabilize wood turning blanks and degas wine. The pump arrived before my vacuum pot, so I decided to setup it up for degassing wine. My one and only criticism of the unit is the two fitting for attaching a vacuum line. They are a 1/4" Flare and 1/2" Acme. If you're a refrigeration guy, these are perfect, but if you're a woodworking wino, they can be problematic. I wanted to end up with a 3/8" nipple fitting for a hose. After a couple a trips to hardware stores and purchasing the wrong fittings, I became frustrated and removed the fitting from the pump, took it to the store, handing it to the clerk and told him what I wanted. After much digging around, the clerk came up with a variety of fittings that when combined would accomplish my goal. One thing I noticed when I removed the fitting from the pump, was the thread sealant. Instead of typical semi soft pipe putty, the sealant was hard like glue. When I reinstalled the pump's fitting, I used Teflon tape. I assembled my degassing rig and fired it up. The vacuum gauge read a maximum vacuum of about 25 Hg. Fine for wine but not ideal for stabilizing wood. The next day my vacuum pot arrived. It came with all the fittings and vacuum gauge installed. All that needed to be done was to attach the vacuum line directly to the 1/4" flare fitting on the pump. No adapter needed. I fired up the vacuum pot (after changing the pump oil) and watched as it maxed out at about 27 Hg of vacuum. Acceptable but not great. Out of curiosity, I put a few drops of oil around the pump's fitting were it screws into the pump body. Within a few minutes, the oil had disappeared. Before doing the next batch of wood, I removed the fitting, cleaned the threads with a pick and wire brush, and reinstalled the fitting using 5 minute epoxy as thread sealant. The next time I ran the pump, it pulled a 29+ Hg vacuum that eventually got past 29.5 Hg. At my elevation of 825' above sea level, that's about as good of a vacuum as you can get. I am on my 5th batch of wood and have not changed the oil in the pump. It's still pulling a near perfect vacuum. Speaking of oil, when the pump is running, an oil mist is emitted from the exhaust port. I would avoid breathing it. Rather than wear a filter mask I simply put the pump outside. The good news is, when the pump reaches maximum vacuum (and there are no significant vacuum leaks) the mist diminishes almost completely. I still run the pump outside. In cold weather, I keep the vacuum pot inside and run the power cord and vacuum line under the garage door to the pump outside. The cold air helps keep the pump cool during operation. In 50+ degree temps, the pump gets pretty warm after running for a couple hours or more...not burning hot, but uncomfortably warm (which is normal). Overall, I'm very pleased with this pump, especially at this price.

This vacuum pump is well built and heavier than I expected. Exceptional quality build. I used it to vacuum my auto AC and it went to about 27 mg in less than 2 minutes. If left for a half and hour it goes down to about 29.5 mg, provided you don't have any air leaks. Its very sturdy and performs exceptionally well. Less noisy than I expected.

I'm happy with this pump after using it twice. I filled the oil half way between the marks, and ran it for over an hour under slight load to break it in, first. (This might not be necessary at all.) It holds vacuum just fine. **It comes with oil in a sealed bottle. After filling up the oil reservoir, you'll have extra leftover. The pump is still working after doing several A/C jobs. **I believe that the pump and other AC vacuum pumps use mineral oil for lubrication. Take opinions on here with a grain of salt!

Removed acme and 1/4 male flare fitting to install 3/8 male flare fitting to use my vacuum tree and micron gauge.

I needed this to service the A/C in my car. The valve core in the low port had to be replaced as it just blew up one day and all the refrigerant leaked out, so the system had to be put under vacuum before refilling. This pump did the job easily, efficiently and pretty quietly. No complaints. The price was good and my problem was solved. I would recommend it.

The rating says 150 mic.. but I did a triple vac and it pulled it under 500 mic all 3 times in about 10-15 minutes.. 250 mic in about 5 min more. So I left it for another 30 mins and got down to 110 mic for my final standing vacuum test. Only rose to 140 mic after 45 minutes! These are not exact times but approx. Senville 12HF - 20’ lineset (1/4” &1/2”) I have another unit to install not sure how long it’ll last .. but so far so good.