Whats Inside an Oxygen Concentrator and Compressor - DIY Oxygen Filling - ElementalMaker

[@JimN5QL]

I am a retired RN and used to do home health nursing. I've been around a lot of those oxygen concentrators but they never would let me take one apart. Thanks for the video, very enlightening!

[@Thricenol]

5:50 I think it says 1/12 hp. Pretty sure 12 hp startup current draw would make your breaker box glow.

[@ElementalMaker]

Right you are Tim!

[@CAMacKenzie]

60 measly watts? Light bulb moment!

[@mattbanks3517]

you should have just enough power to run 2 motors both 6 hp (6hpx0.75 =4.5 kw x 1000 = 4500w). In my country, we have 220v 50hz @ 10-16-20-25 amps. 25x220=5500w 20x=4400w. two 6hp motors running 4500 watts could be done on seperate phases.

[@davegeorge7094]

Compressor uses 5 progressively lower volume series cylinder/pistons. The valves are critical to operation. Nice design ever witnessed by me.

[@dudedeman]

I worked as a biomed for over 25 years. I also worked on hundreds of concentrators. I do remember the active element in sieve bed of those is felspar. /They work really good just keep them away from water or very high humidity. A blast from the past!!! Thanks.

[@ElementalMaker]

Very cool thank you for sharing! I did a few years in biomed engineering myself but far out of the realm of this stuff.

[@Subgunman]

There are many aircraft owners who use these units to refill their on board O2 tanks, set it to run on a timer and the next day they are ready to fly.

[@ElementalMaker]

Very cool! I'll have to let my pilot buddies know 👍. Are you a pilot? Always wanted to get my license, but never did anything more than a few flights with an instructor

[@kodiandroid8821]

i dont think i have ever came across someone that gets so excited about a machine ,,go on big man atb pal

[@N1RKW]

That is one excellent score! I've always wondered precisely how my O2 concentrator works. I need it working for my health (and it's technically not mine yet), so I won't be taking it apart, so thanks for the look inside and the brief overview of its operation. Your description is 10 times better than anything else I've found online about concentrators.

[@ElementalMaker]

Thanks! Glad you found it interesting!

[@stavinaircaeruleum2275]

Did I just find AvE's brother?

[@dDoOyYoOuUtTuUbBeE]

Way too tidy workbench...

[@benhuffington8482]

Please no. His gibberish is unwatchable. If you don't know the name of something, just look it up. Don't use backwoods bullshit lingo if you're going to try to teach people.

[@Matthew-ju3nk]

I was thinking the same thing. Two twin brothers separated at birth. One raised by Canadian wolves and the other by MY Yankee fans... It's got the makings of a great sitcom!

[@Matthew-ju3nk]

NY not MY ...dang spell check

[@derrickfoster644]

my thoughts exactly

[@mcorrade]

E.M. my man, don't think that's a 12HP motor. If it is, then it's alien tech :--)

[@matthewellisor5835]

"12th" I think he said (but I did pause for a split)

[@ElementalMaker]

Tis indeed 1/12th hp. Audio was shoddy there

[@mcorrade]

@@ElementalMaker no worries I knew it was a some kind of issue was just joking with you :)

[@MrVdmg]

He says "1 AMP" at 120V should be near 120w, no ?

[@billssolarpowerandgardenin1016]

Shoddy audio? My friend, It was just a quick glance mistake is all. I think you were caught up in the excitement of possibilities and it’s hard to read upside down anyway. Judging from the fact that oil and oxygen don’t mix I wonder if the piston rings are Teflon or some other wonder material. Also thanks for a look at something I would not have ever had a chance to see 😊

[@danielcoetzee5793]

First time someone mentions what happens to the Nitrogen that is filtered out.....I have watched a few videos on the workings of the oxygen concentrators and I am always left asking "what happens to the Nitrogen?". Where does it go? It would have been nice if you explained it properly for dummies like me to understand....!

[@iPadtutorial99ROBLOX]

You explained how it absorbs nitrogen pretty accuratley. When its running at a higher pressure than atmospheric, the sieves trap nitrogen while letting oxygen to pass through and out the exit valve. Once the zeolites are full of nitrogen and its starting to pass less pressure through, it's switched to the other bed while the full bed is depressurizing out the nitrogen.

[@tablet4327]

The gases are preferentially adsorbed onto the surface of the zeolite, rather than absorbed like a sponge. Really enjoyed seeing inside this machine and remember to thoroughly degrease any high pressure oxygen lines and joints or at least get it on video when it pops :)

[@stdorn]

Biomedical equipment tech for 18 years worked on almost every brand and model of concentrator. I think the compressor in this may be made by Invacare it looks a little different than any Thomas or Gast compressor I am used to seeing. Common compressors like that are model 2650 and 2660 I built an air compressor for the garage with one and I love it. Its so quiet. Thanks for showing the homefill unit I never had one come thru the shop, I was only aware of there existence. I wish I could have worked on one.

[@stdorn]

If you need compressor rebuild parts check the aftermarket group or Virginia medical repair.

[@jhyland87]

11:30 i think they're the X13 zeolite sieves. Dont they get saturated with the nitrogen and require changes? Update: nvm, at 13:09 you explain that they offgas the nitrogen. Thanks! EDIT: are you sure it doesnt use _Pressure swing adsorption?_ (you said it offgasses with time, but PSA is when the offgassing happens when the pressure is released.

[@gregfeneis609]

If you had multiple O2 concentrators you could feed the exhaust of one to the intake of the next, and so on, then the last one doesn't collect any O2, but its exhaust should be pretty good nitrogen, which perhaps could be collected in another high pressure compressor. Then you could do exciting nitrogen things!

[@krpaintingandhomeimproveme307]

DUDE ...VERY VERY COOL INFORMATIVE AND QUICK TO THE POINT....VERY CLEAR EXPLANATIONS WITHOUT ALL USLESS BULLSHIT MOST HAVE IN THEIR VIDEOS...DEFINITELY HAVE MY SUPPORT !!

[@Biokemist-o3k]

This is awesome!! I used to do a lot of scuba diving as well as jumping out of planes and I do not do any of that any more but those scuba tank filling compressors are super cool also. I am building a foundry as well as a glass blowing set up and now I have to get a couple of these. Every once in a while you can find them for free or very inexpensive..I was going to just split water into Hydrogen and Oxygen but a concentrator may be a better deal. Thanks for the video. I know this was 4 years ago but it is a great video.

[@msmeyersmd8]

The compressor is the reverse of the old triple expansion steam engines. Used in stationary systems and in marine power systems.

[@billn9910]

Thanks so much. I have had this exact setup in my house since November 2017 and it has never give me any trouble and runs nice and quiet next to my bed. I also have a 32ft hose/cannula on it to reach into the living room by my recliner for TV watching but I do have to switch the cannulas from bed to recliner or else keep wrapping up a lot of hose. Sure would like to find a two way connector before I break off the hose connector.

[@roquri]

BMET here. Been about 15 years since I've worked on one of those. IIRC, you will have O2 percentage fluctuations as the filters get saturated, and it switches back and forth. I don't ever recall getting more than 96-97 percent on a meter. Can't remember what the lower limit is, keep thinking 94ish, but don't quote me, going off memory, and don't have the tech manuals in front of me. But for a small concentrator, with its flow rate, that's not bad at all.

[@ChaosPootato]

You'll have to clean up your lens, there's a smudge appearing and disappearing in the upper left corner it's distracting :D

[@akefayamenay104]

ChaosPotato he just doesn’t want us to find out he really is AvE’s little American brother separated at birth :)

[@trulyinfamous]

I say we send him a pack of 100 microfiber cloths through Amazon.

[@michaelking3327]

not a smudge, it's blur to hide his face

[@akefayamenay104]

@@michaelking3327 lol, I'm afraid you're a little late to the party, mate :) He's being cheeky and we all joined in poking a little fun at elementalmaker for hiding his face.

[@ElementalMaker]

@@michaelking3327 r/woosh 🤣

[@nerdyorganist]

If you bypass the o2 sensor can you please make a video showing how? Thanks!

[@tjfreckles1995]

+ElementalMaker Hey you probably already know this, at least I hope you do, but you don't fill scuba tanks with pure O2. You can get oxygen poisoning. It's just compressed air. If I recall you only use Pure O2 canisters for helping stave off the bends by using it at surface level if you came up too fast, or using it to refresh your body if you're going down again in quick succession of your first dive.

[@ElementalMaker]

Yeah of course. I didn't want to get into the whole tangent of oxygen toxicity with increasing partial pressure. Just wanted to note that with the correct setup that pump could probably be set up to pump cleaned and dry air by bypassing the O2 sensor. I should have added a note in the video.

[@stamasd8500]

ElementalMaker quick tip that I got from a guy who does oxyacetylene welding: breathing a little pure oxygen is a quick cure for hangovers. I didn't get to test it personally because I never had a hangover. I probably don't drink enough.

[@ElementalMaker]

@@stamasd8500 I have a project coming up in which I will have to put that to the test! That'll be magical if I can beat hangovers LOL

[@ElementalMaker]

@@stamasd8500 I have a project coming up in which I will have to put that to the test! That'll be magical if I can beat hangovers LOL

[@stamasd8500]

@@ElementalMaker Yes we all have that project coming up. It's called St.Patrick's :)

[@caveman6345]

Score. I have always wanted to take one of those apart. Looking forward to the hybrids.

[@robson6285]

Hee, this is a really interesting apparatus! Finally i get a good look inside such a thing, and with explaination of all thats in there! A very interesting topic, thus a great video is this!! (But even better would be if the core of the concentrator, that component that is doing the N²&O² spitting, got more explaining)

[@ProlificInvention]

I cannot wait to see some hybrid rocket motors, I hear acrylic as well as caramel make great solid fuels and have an excellent amount of contained energy.

[@ElementalMaker]

You'll be seeing some acrylic in use 👍. Caramel is an awesome idea, never would have thought of that!

[@ProlificInvention]

@@ElementalMaker Thank you for responding, love the channel and all you do. I had an idea years ago to make a hybrid rocket motor that had an injection system for molasses about halfway through the burn to extend range as the solid fuel usually is consumed before all the oxygen in most of the benchtop experiments I have watched on KZbin, however those could have just been design issues? Anyway, also always wanted to try a dense wood as fuel such as ironwood or others...

[@bunnykiller]

NO2 ( nitrus oxide) (sp?) is better than oxy @@ElementalMaker

[@Daful85]

Having worked In the industrial O2 separation field, and seeing the pump, they have two pumps one pressurizing the in use sieve, and the second pump would be pulling a vacuum on the out of service sieve, because the sieve will become saturated within seconds of adding air, the vacuum speeds up the Degas step.

[@ElementalMaker]

Very cool! Given that this is a dual piston pump, that may be how they are doing it.

[@wb5rue]

I really like your videos and sense of humor. Your videos meet the two requirements for good videos, entertaining and informative. You have a great "radio voice" too. I've been accused of having a voice a face for radio. Is this why it seemed that you pixel out your face? :) Only one thing that doesn't bother me but I do download your videos and show them to my kids and have to edit some of them for content, if you know what I mean. Keep up the excellent work.

[@chocolatecake4200]

Rockets baby, that's what I wanted to hear. Looking forward to what's next.

[@flick22601]

Glad I found your channel. Always wondered how those concentrators worked.

[@bobedwards8896]

I love that your excited about this machine... I am too. that thing is BADASS!

[@markrainford1219]

Glad you made the distinction between over built and over engineered.

[@RANDALLOLOGY]

That would work perfect for my Smith little torch. Where does one find a old used rig like that.

[@cathybradford5685]

Check this out: kzbin.info/www/bejne/r5i3Z2eKjrKbnLs&feature=emb_err_woyt

[@gigamut11b86]

Thanks for showing me what I'm hooked up to...lol...always wondered what it looked like on the inside :) I don't have the bottle filler, but I do use the concentrator...been on it for 5 or so years now...uugghh I hope you have a great day & be safe :)

[@ElementalMaker]

I'm sorry to hear you are have to use one, but am glad I was able to show you how it works.

[@flomojo2u]

I got a larger version of a concentrator from a glass blowing shop for around $350. They marked it as being modified for non-medical use, though I was never able to determine what that entailed. From what I understand it puts out around 85% O2, probably modified to put out a higher flow rate at a lower purity since it can really pump a serious gas volume, as well as removing any fancy filters. Wouldn't really suggest using it with propane, the amount of gas volume required for a complete burn is much higher with propane, and it burns at a lower temperature.

[@Subgunman]

Had one in the house for my father in law when he was on his last days. Rented this from a local Med supply company but was very turned off as to the cleanliness of their rental unit. Took the liberty to clean and replace filters in it and sanitize various parts. If there are rental agencies are putting out equipment in this condition, they should be shut down, think of all of the germs and microbes being passed on to those with compromised immune systems.

[@ronbrown2770]

I have an air compressor that will fill bottles to 4200 psi for an air rifle. It's smaller than than this unit.

[@ejejej9200]

You are awesome and your channel is awesome! Thanks for doing this. Just subscribed. Love it!

[@docthebiker]

How would you bypass the O2 sensor to be able to use it for compressing straight air? I have one of these and a PCP that uses 2K Psi, but for obvious reasons I don't want to fill that with O2. Can you think how it might be bumped up to pump out another .5-1K?

[@adrongarretson6195]

Awesome video dude Miss watching your videos I don't know where they've been maybe they're just not suggesting I watch them or something that I haven't seen you on for a while so keep doing your work love it

[@ElementalMaker]

Yeah youtube doesn't seem to like promoting science channels. Too dangerous! LOL hit the notification bell and I think it'll let you know when I upload

[@en2oh]

buy a thermos bottle..... glass is best and use a stirling engine to cool it. molecular SIV beds can be reactivated. thanks for taking time to detail this.

[@andrewspohrer7183]

We got 02 generators that fit in a backpack, run on batteries and have a quicker charge time, u can only get one tank per battery but it's more than enough to tie you over till you can resupply

[@ChristmasEve777]

Awesome video!! I just discovered your channel. A multi-stage compressor never even occurred to me. And to be honest, It's hard for me to imagine how it actually works. But without having seen one until now, I do know that they are possible for another reason. I have an oxygen concentrator that then uses a second compressor and makes liquid oxygen from it. The liquefier compressor is no bigger than a fridge compressor and it makes liquid oxygen! So, if you think about it, you could take some of that LOX and trap it in a container and close it off. There you go, SUPER high pressure... probably an explosion if you don't know what you're doing but that's another "round-about" way of achieving high (VERY HIGH) pressures with a small compressor. It's less work over a longer time.

[@christopherleubner6633]

Great find on the compresor unit. 5 stage progressive, that is good for about 5K, but the charging valve itself not so much. You can use cooling between stages and make yourself an mini air liquifier with it using joule-thompson effect. Wish i had something like that when i had some old hughes probeye thermal imagers. 😃🤓❤

[@gregfeneis609]

Neat gadget. I really doubt that little motor is 12HP. That's like 9kW. If it draws 1.1 A, probably 0.12HP

[@ElementalMaker]

Yes it's 1/12. Audio wasn't very clear there

[@the_socompsp]

i concur the HP rating is 1/13HP lol not 12. i honestly am surprised its only 1.1 amps, its THAT overbuilt for longevity. normally with winding's like that youd be able to push tens of amps..

[@TomokosEnterprize]

What a great add to the shop ! I can see your noggin gears just a spinning.I am already wondering how long it would take to fill a 4ft type cylinder. 3x a scuba tank.Sweet unit my friend ! You sound like a kid in it's first candy store my friend, LOL.

[@siggyincr7447]

Neat machine, I didn't know that molecular sieves worked with gases. I see in the comments below that I misheard the motor rating. I was thinking that there is no way that was a 12 HP motor.

[@Ralaigon]

I don't know what I would use it for, but I want one now.

[@scottfirman]

So awesome! I have always had an interest in those units. I wondered how they were able to grab free oxygen and filter it out. You explained it enough for me! On a small job that would be fine. I dont weld anymore but that would be cool if needed. I can imagine you paid a small fortune for it. I would LOVE to see the setup aboard the ISS. They must have to use replaceable cannisters and hepa filters as well as the dehumidifier system up there. I always amaze at how guys putting in Bunkers underground for emergencys have no system to filter out the irradiated atomosphere. Dust and smoke carrys radiation. My brother uses oxygen then gets up in the morning to smoke. I am suprised he doesnt go flame on!

[@ElementalMaker]

Glad you enjoyed! 👍

[@sparkyy0007]

The beds absorb the O2, N2 is just vented. Depressurisation of the bed releases adsorbed O2 to the compressor by PSA. Cool Video, thanks !

[@horrorhotel46290]

Don't think so tbh, every single article on pressure swing adsorption I read explains the process with the example of these devices, and they all jave it the other way round. Of I'm wrong feel free to point me to the necessary resources to clear things up

[@sparkyy0007]

@@horrorhotel46290 I'm an idiot... never mind. Selectivity depends on the bed loading, CMS or zeolite. I'm currently building a PSA N2 purge system using CMS and the breakthrough is O2....so I'm biased..lol. www.tandfonline.com/doi/abs/10.1080/01496397608085334?journalCode=lsst19 Abstract The performance of 5A zeolite and a carbon sieve produced from coal for the separation of O2 and N2 from air has been studied. In static adsorption at 25°C, the zeolite took up more N2 than O2. Conversely, for short adsorption times, the carbon sieve took up more O2 than N2. This behavior was reflected when air was passed through adsorbent beds. For the zeolite, enriched O2 was recovered in the outlet; for carbon, enriched N2 was recovered. Possibilities for improving the performance of the carbon sieve are discussed.

[@rockoneer]

Thanks again for sharing this information i was lappin it up

[@Bv3017rocket]

Way cool! Looking forward to the next video...

[@locouk]

When a great You Tube channel finds an exciting new toy.. 😎💥🔥🍾

[@ElementalMaker]

When a great commenter drops a great comment 👍 LOL Thanks for the kind words Mr Silver

[@Mr.Unacceptable]

If you had a Solar HHO fed into this could you not have 100% O2? Never greese any parts that have anything to do with O2.

[@ElementalMaker]

It might be possible, but then again this outputs 95% pure O2 with the remainder being mostly argon id guess, so it's as pure as I'll ever need it 👍

[@artweaver6963]

@@ElementalMaker it's actually mostly CO2! You can flow the output over an activated carbon and calcium carbonate scrubber and get 98-99% pure O2. 100% can be achieved with a molecular filter but it's highly corrosive and difficult to store!

[@ElementalMaker]

@@artweaver6963 wow no kidding! I would have definitely thought argon would be the main impurity. Any details on why that is?

[@artweaver6963]

@@ElementalMaker well, argon is less than 1% of air at standard temperature and pressure. CO2 varies from 5% to 20% depending on plants and animals in the environment and time of day. (Photosynthesis.) In a laboratory environment you'd be right on. Argon would be the predominate gas left after nitrogen saturation but the percentage would be less than 5%.

[@ergohack]

@@artweaver6963 How does the CO₂ get that high? You'd need well in excess of 10,000ppm CO₂ in the input gas for the 5% impurity in the output to be mostly composed of CO₂.

[@hp5683]

Do we need any special room for filling zeolites in sieve beds, like maintaining pressure, temperature or humidity of the room?

[@YinYangDPW]

Hybrid rocket engines - so what exact formula and general rule of thumb do you use to calculate engine dimensions, convergence, divergence, nozzle throat diameter to chamber diameter, etc. Doing a video on these design calculations would be appreciated.

[@TheTarrMan]

It's currently like 8:00pm and all the lights are off in the house as I'm getting ready for bed. When your door bell rang I thought it was mine so I paused the video. I had no idea who would be bothering me at this time of day but when I got to the door no-one was there. Scared the crap out of me, had to do a security sweep the house with a shotgun. Now that I know it was yours, I feel like a lunatic.

[@ElementalMaker]

Haha that's too funny. Better safe than sorry

[@manickn6819]

Great find given your interest. Look forward to seeing it used in the future.

[@mute8s]

I was out of town when you first posted this video and was only watching videos on my xbox which is a pain to comment on but f*** yeah! You scored there. Those things are not cheap. My buddy who is on o2 really needs one of those because he is so far out of town his o2 supplier always a pain in the ass to get them to come swap out his bottles which sucks because he way prefers his bottles to his concentrator. After all the problems his o2 supplier gives us we always tell them just to send out a bottle filler unit but they keep saying it's to expensive. A lot of people use lines hooked right up to the concentrators for jewelry making and stuff because they actually do provide enough 02 to use for oxy/propane silver soldering.

[@x9x9x9x9x9]

I can't wait to see these hybrid engines!

[@ElementalMaker]

Video coming soon!

[@taattataattataattata]

i had to stop at the beginning just to say this is exciting i really want to see whats going on in the top

[@davegeorge7094]

Sodium aluminsilicate(13X zeolite monecular sieve).

[@horrorhotel46290]

Question: Did you see any discrete bleedvalves in the oxygen concentrator for when the nitrogen is being evaporated from the "spent" cartridge? If so, I'd imagine one could also use these units as a nitrogen concentrator. I've rebuild an old cryocooler and would like to upgrade my "liquid air" setup to a proper "liquid nitrogen" setup

[@nobodynoone2500]

I doubt it would be pure enough, but maybe after a few cycles. You would want some better sensors to start.

[@PeterPete]

tks for insightful video - you didn't seem certain when you were talking about the seive beds and nitrogen being 'off gassed'. When you said 'nitrogen being off gassed' I assume you meant nitrogen being released as 'exhaust' by the system. If that's the case, which I'm sure it is, wouldn't Aunty Gladys have a room filled with nitrogen after a few hours?

[@ElementalMaker]

Homes have far too much air volume and aren't sealed well enough for an O2 concentrator to fill a room with nitrogen gas. It would have to be pumped in at an alarming rate to displace all the O2 in a room. Also the human body doesn't use all the oxygen we breathe in, so some will be added back into the room from the user's exhalation.

[@PeterPete]

@@ElementalMaker Tks for replying. Well to be honest I have a completely different understanding how that concentrator you were disassembling works. To put it simply it's just an air concentrator - it concentrates the air to manufacture a concentrated gas stream that is called oxygen. There's no nitrogen there at all.

[@Rokynutz]

I wonder how much would need to be bypassed or burst disks upgraded to use one of these as a airgun compressor? A lot of Airguns are filled to 3000psi and some, up to 4350psi fitted with a rated CF bottle.

[@keithjurena9319]

Swap the motor out and feed it 150 psi air for SCUBA use. Make sure to filter the air through mol sieves and activated carbon.

[@charlesspringer4709]

Thanks, I have wondered about using those for something. I have a buddy who uses one for glass blowing/bead work. FYI, anybody who fills their SCUBA tank with oxygen is going to convulse and get a bad case of death below 20 feet. Be careful with the public speculations!

[@ElementalMaker]

Yes I added a note to the video description stating never to use pure O2 for scuba. Hence the reason I mentioned bypassing the O2 sensor.

[@RGCbaseace]

What do you reckon would be the result of using one of thees o2 concentrating units as the air assist on a 40-50 watt laser cutter ??? Flamage ? Maybe ill do a video or I may pull thoes molecular sieve canisters off if i have too this unit i got is super quiet even with the cover off well based on my computer repair work and getting the awesome joy of trying to fix a computer that was so cloged with cigarette smoke the fans wouldn't turn looks like whom ever was using this smoked heavily probly the reason that individual needed it in the first place Any way inside its the same setup as yours just no compression unit on top just o2 out and a flow control and meter if nothing else the pump is very nice way better than my curent air assist pump and no where as noisy

[@dyardsale5475]

Good video, nice to see the insides, could not testify in court how any of it works. Do you by any chance know where to get the whip hose? I want to connect an Invacare compressor directly to a CGA-540 tank (40 cuft) without a regulator without a pressure gauge.

[@ElementalMaker]

Unfortunately it's been so long since I've bought parts for this machine I have no idea what part number that would be. I think I remember them having pretty good parts diagrams and availability for these units though, so if you keep an eye out you should be able to find the whip you need

[@dyardsale5475]

@@ElementalMaker Thanks. Making oxygen at home is kind of exciting for a dork like me.

[@douro20]

Probably a Thomas compressor in the oxygen concentrator. I wonder if you can convert an O2 concentrator to produce nitrogen.

[@jaratt85]

Have you seen some of the DIY LOX compressors here on youtube? I know The King Of Random has one.. lines going everywhere.

[@ElementalMaker]

Going to have to check those out, I haven't seen them!

[@oh8wingman]

I would like to see what kind of cut you can make on steel if you can cut it at all. I'm a journeyman welder and we were taught in first year that you require O2 to be at least 99% pure to get a good cut. Your O2 is, as you said, about 94% pure and it would be nice to see if it actually oxidizes the steel completely or if it just blows molten partially oxidized steel out of the way.

[@nicgreen4234]

Scooter Tramp I do remember that you can’t weld steel with oxy-propane. Cutting yes, but welding needs excess carbon in the flame hence oxy-acetylene. I’m keen to see if the PSA oxygen cuts it!

[@neon-john]

A 5 lpm machine like he has with fresh sieves makes 99+% pure oxygen. I say 99+ because my medical oxygen concentration meter stops at 99%. I make neon signs and artwork and I have 5 10 lpm, 22 psi concentrators in my studio. One for each of my major fires and the 5th one for all my small fires such as the tipping torch. I bought refurbished machines that cost between $300 and $600, depending on the rebuilder and the year. Like everything else, the price of concentrators has risen sharply under the biden economic debacle.

[@ChannonWW2214]

Great vid e maker. I just picked up 6 of the invacare 10 ltr. lowers with that compressor and the tanks for the sieve and I was wondering what I should do with them scrap them check them out I'm just getting through them right now any tips would be great thanks.. The first one looked like it was made of dust when I opened it up just like that one but 10 times worse probably. 2,600 hrs I think on first one

[@albertogregory9678]

Hey dude, I know it’s been two years, but do you have any tips on finding these? I’m looking into getting one, but they are so expensive…

[@anotherguy9402]

I got the exact same concentrator without the compressor and found replacement zeolite canisters for $108 because the ones it came with were no good(smoked on oxygen and cigarette smoke made it's way in) getting excited because beads should show up soon and hopefully I can find a compressor.

[@ElementalMaker]

Awesome! It's a great concentrator, been using it for various projects now for years and it's still working great. Mind if I ask where you found the canisters? I might buy some backups for the future

[@anotherguy9402]

@@ElementalMaker KZbin keeps deleting my comments but it's o2crs and I just got the canisters this last week. I think you need to make an account to get a receipt emailed and to get updates on thier website.

[@coffeeisthepathtovictory1290]

Is this a type of booster pump? A 5 piston, rotary booster pump?

[@23chaos23]

omg that bench is too clean

[@STIZEN9]

thankyou this was what i was looking for! how can i fillup tanks with regular air, for hpa airguns, with this setup? oxygen levels would not be important, just a simple fill, and up to 3 or 4 thou if possible? what do i disconnect? i also would want to be able to go back and forth, being able to fill up tanks with oxygen when needed, as it was originally intended for. Can you PLEASE help me out?. Thankyou

[@ElementalMaker]

You would only need the compressor. I'm not an expert, but I think you would have to disable/bypass the oxygen sensor allowing it to pump standard atmospheric air. You would also have to prefilter the air otherwise dust would probably kill the compressor in short order.

[@kodyfrost]

In the market to find exactly this. I am trying to get into glass blowing and this would be perfect if I can find a used concentrator for cheap

[@tarstarkusz]

5:48 I can't understand what you said. It sounds like you said 12th HP motor drawing 1.1amps. Obviously that is not right. So what are you saying? Sorry, my hearing isn't great and sometimes I cannot make out what someone is saying.

[@ElementalMaker]

The motor label says 1/12HP and 1.1Amps, doesnt make sense, but thats what it says LOL. Ill have to check it will the killawatt meter

[@tarstarkusz]

Thanks dude.

[@GigsTaggart]

1.1 amps isn't too unreasonable if you consider reactive amps. Which you would for wiring or fuses etc.

[@douglundy5755]

So were going to use this for welding or??

[@Made2hack]

Great, now I'm actively shopping for an O2 concentrator!

[@orionkanat6680]

Where are you scoring theese amazing finds? This, the lincoln electric welder, etc?

[@ElementalMaker]

Just a fair bit of luck being in the right place at the right time. Also checking yardsales and FB Marketplace. There's some good deals on occasion

[@orionkanat6680]

@@ElementalMaker cool, tyvm

[@kellyschlumberger1030]

Cool vid got me subscribed! Quiet pump looks like a Thomas Pump design. How about running this from an electrolyzer. Could use waste heat from hydrogen for a pre-heat water heater, or just burn for heat with humidity. Maybe run oxygen over a heat filament, even a tungsten-halogen bulb (quartz) to preclude H getting into the O. Pure hydrogen burns smoothly in a proper flow system. Thanks.

[@raulsumire4562]

GOODNIGHT. WITH WHICH ALTERNATE TIME INTERVAL BETWEEN COLUMNS?

[@DaveWatts_ejectamenta]

Nice video! is it possible to replace the molecular sieve cylinders? How can you tell if they need replacing? cheers Dave

[@ElementalMaker]

Yes the beds are replaceable once they reach the end of their service life honestly not exactly sure how one would be able to tell, I imagine the unit has a low oxygen warning

[@DaveWatts_ejectamenta]

@@ElementalMaker I just read that lifetime is about 20000 to 30000 hours, mines done 3200 so it should have plenty of life yet i think. Thanks for the reply

[@jmac1099]

good vid. I work with pressure swing absorption (PSA) to generate N2, well remove oxygen... Anyway, i thought the Nitrogen atoms are bigger then Oxygen? if that was the case then this should adsorb the oxygen and pass the Nitrogen, then when it exhaust the O2 it should capture it? Anyway, neat to see whats in there.

[@ElGatoLoco698]

Man, you got some cool toys in the workshop. Are you in Texas by chance? I sure could use some of those toys.

[@outdoorflowsports]

can flowrate be increased with pre pressurizing intake air while maintaining the 98% O2 Concentration?

[@davidperry4013]

I would use one for torches and oxygen bars.

[@iguanapete3809]

The medical O2 tanks us a liters per minute regulator. Can you use that for welding (aluminum)? I would also like to have an argon concentrator to tig weld aluminium.

[@jhyland87]

0:31 anyone know what that type of port is called? Is it just the ubiquitous universal industrial coupler thats used to attach air tools to compressed air lines?

[@ElementalMaker]

I believe that's unique to Invacare. The fittings are quite expensive.

[@jhyland87]

@@ElementalMaker Damn.. Im working on creating a nitrogen concentrator _and_ an oxygen concentrator as well. Sending the oxygen that gets filtered out via the nitrogen separation membrane to the input of the oxygen concentrator (before the PSA). It would be _really_ awesome if I could have two of those refill ports (one for N the other for O2). I guess the only real way that could happen is if I buy two oxygen concentrators that both have that type of refill port and cannibalize one of them for the nitrogen. Thanks though!

[@jhyland87]

@@ElementalMaker Oh, actually, looks like they _can_ be purchased, just not for very cheap at all.. ~$220 www.tigermedical.com/Products/Homefill-Integrated-Regulator-D-Cylinder__INVIOH2MD.aspx

[@wolvenar]

Damn, nice score.Would love one of my own.

[@designworksdw1949]

That is awesome, How did you find that you? would love to find something like this myself.

[@ElementalMaker]

It was right time right place and some luck, just passing by a yard sale and they wanted $50 for it along with two bottles. Hell of a deal!

[@BinjKomisar11]

@@ElementalMaker That is a heck of a score!! Wow!

[@designworksdw1949]

@@ElementalMaker Damn thats a good deal. i can only find the base unit on ebay and they are asking 650$ lol . Never underestimate the power of the yard sale

[@ElementalMaker]

@@designworksdw1949 luck comes along every now and then! Keep your eyes out.

[@marks5603]

Dewars? Wow, I found two yesterday at my local surplus place. Look to be about a gallon each. Give 'em a call Electronic Surplus Services in Manchester, NH. Ask for "store", not on-line sales. If they don't know what your calling about tell them they're at the back of the store, top shelf, painted green.

[@matthewellisor5835]

Really? I walk past plenty at my local liquor store. Hmm.

[@marks5603]

@@matthewellisor5835 That's Dewar's, with an apostrophe. Not the same. One makes you warm, the other, not so much. :)

[@Nuovoswiss]

You might be able to make your own dewar flask. Cody did a video on that, but he used a vacuum pump, then welded the inner and outer layers together. A possible (simpler) alternative to that would be to put some water between the two layers, then heat them to boiling so the steam displaces the air. You could then weld or glue the two layers to seal in the water vapor. When the steam cools, the vapor will condense into only a few mL of liquid water leaving a decent vacuum between the layers. Upon adding liquid nitrogen or oxygen, the remaining water vapor will condense on the inner layer and freeze, resulting in a really hard vacuum (microtorr). Also, I've been wondering whether you could make a thermic lance using aluminum tubing with pure oxygen. Nighthawk has a video on that using iron/steel tubing, but if you could do that with aluminum tubing it might be really cool. It would also create a really fine aluminum oxide smoke, which might be useful in its own right (like vapor deposition).

[@ElementalMaker]

I actually did make one a long time ago, but the issue is nobody will fill a homemade dewar with liquid nitrogen. Needs to be a commercially made one for the local gas suppliers to even look at it.

[@ElementalMaker]

Yeah I also plan to do a thermal lance video. I'll have to see if we make aluminum work 👍

[@SpringDivers]

Hey, diver. Get a couple of 95 Cu. ft. LP steel Faber tanks. 2640 PSI. Nitrox compatible too. You could also attach a haskel to boost the output.

[@ElementalMaker]

I need to get a couple tanks! I was just diving off Key Largo last weekend on Molasses reef and it really sparked me to start looking for gear.

[@MrRedeyedJedi]

Thanks for sharing. Lovely bit of kit. Would be good if you were into mountain climbing too!

[@pulesjet]

That is a damn good idea.

[@DesertJeff]

ROFL love the door bell dog bark bit! Ok continuing to watch......

[@Tymz89]

Did u figure out how the filterprocess work? Does it has an backflush? I think u just have to replace them after some hours (displayed on the meter)