DIY 5000G Centrifuge

Home made WVO Centrifuge :-)

[@vincentrobinette1507]

The bowl must be ~10 inches in diameter. according to my calculations, a 10 inch inside diameter spinning at 6,000 RPM would develop 5,112 G's of centrifugal force. a 2-pole induction motor running on a 200 Hz variable frequency drive gets you there. If you subtract the slip loss of an induction rotor from the synchronous speed , the difference will likely land you right on ~5,000 G's. I like how you used the motor rotor that will drive it, as the spindle to turn the bowl. That helps insure a close enough dynamic balance, to allow continuous operation at high speed, with minimum vibration. NICE BUILD!! If I were to make any recommendation, it would be to make the top circle as small a diameter as possible, to give maximum radial depth from the inner rim to the top ring. That will allow better settlement of particulate matter, allowing for better filtration of finer particulate matter, or allowing a higher flow rate, with similar effectiveness. Depth X G force makes for better filtration, especially, for more viscous oils.

[@skunkjobb]

The rpm of a two pole induction motor without slip loss is 3000 rpm at 50 Hz (the normal line frequency in most of the world) so it only takes 100 Hz to reach 6000 rpm. When you calculated 200 Hz, you must have been thinking of a four pole motor. I too noticed how they put the motor rotor in the lathe, it was very smart.

[@ryanclarke2161]

I am surprised I have never seen this channel, highly underrated and full of interesting stuff. Awesome really.

[@Rharaldseide]

Thanks😃

[@Rharaldseide]

Yotube was more inclined for diy stuff before now its hardder to find real stuff😝

[@ryanclarke2161]

@@Rharaldseide well keep it up man, i have dreamt of making an ROV for a long time. actually looking to make a centrifuge atm for WMO. hope to see some new vids from you with more cool stuff.

[@dadoVRC]

I done a similar thing ten years ago. Same dimensions (228mm ext. diameter, 208 internal, 160mm for the "oil level") and about same speed, mine runs at 7000rpm, but I have made it from a 7075 ergal bar and balanced like a tool (g2.5at 10'500rpm). But is since 2012 that I don't have a Diesel. At now I'm wondering to convert it to clean the CNC coolant emulsion at my job.

[@Rharaldseide]

Nice👌 mine is stil in use put some liters true it my primary car has 85k and my other has 40k on wvo ++ frinds and family😃 great project now it is fully automatic if you se my other project videos🤡

[@dadoVRC]

@@Rharaldseide yes you have done an awesome job! I decided in 2012 to quit with WVO and now I run my car on LPG. I used WVO for over 170'000 km in my old Fiat Punto TD with a DIY single tank kit. Simply a little 50W heater in the filter for cold weather, a 20plate heat exchanger between cooling and fuel systems, injectors with 15bar more opening pressure, and modified glow plugs (I modified the conical seat to allow the glowing part to protrude 2mm more in the prechamber). With these modifications I can run with oil even in winter, I tried it at -18°C with 95% oil in the tank, 4.2% gasoline, 0.5% winter additive and 0.3% acetone.

[@Rharaldseide]

dadoVRC exselent😃👌

[@dadoVRC]

@@Rharaldseide yes, I achieved a great result with that work. At the time, I put the first few liter of oil in the tank precisely the 15/9/2003, the possibility of running diesels with vegetable oils was not known from the mass of people, here in Italy.

[@Rharaldseide]

Been driving my car for 1 year now wit out changing the diesel filter in my car ... So i think its ok and you get the water out hot pan test appear to be ok

[@Rharaldseide]

hi its 280mm in diameter its ca 11"and the thicknes of the bowl is ca 10 mm =0.3936996" :-) I was on a distens when i started it first time and run it for a while at 6000 rpm .. I normaly run it at 80% of that i think its ok :-) the housing is mad of stainless steel so i think it quit hard to brake thrue. Its inportante to make it run with out enny vibrations the electric motor is 5.5kw way to big but it was woth i had laying around.

[@bromisovalum8417]

damn that's a sweet setup, hat's off

[@Rharaldseide]

Thanks😃

[@landlockedviking]

some serious fabrication skills!!!

[@georgewood6167]

If you need a foundry, a metal lathe and a mill is it really DIY?

[@Rharaldseide]

Yes if I used my time and effort to to do / make all this my self its real Diy 🤷🏼‍♂️ but i see its not possible to get all this done with a bedt screw driver and an weekend its my hobby / doomsday prepping skills to do ewhery thing my self.

[@idarkftw1695]

I mean DIY is the abbreviation of Do it yourself, which pretty much is what this guy did in the video.

[@elitejohnlp]

Sorry for the off-topic question, but that's one hell of a welding clamp. I've never seen anything like that in OEM style. I've seen tons of modified c-clamps and kant-twist for grounding, but that looks like a mfg'd brass one! Can I get info on it please? I'd love to put that on my welders! (I actually have a few different grounding clamps/magnets, all my leads are tweco's m/f, and all my stingers/clamps have a short pigtail, so I can mix and match everything! Very important when you have 4 welders/plasma!)

[@intel2you]

with just a little work a f350 front rotor would work for your center hub of the centrifuge

[@Ben-Dedia]

how much will cost to make one , if u wan make and sell it thanks

[@wabuzzoo8201]

6000 rpm... did you have to balance it?

[@Rharaldseide]

no i was licky i think it was perfect :-)

[@Rharaldseide]

rha h lucky!

[@ChristopherJones16]

how exactly does the centrifuge work.. you dump somewhat dirty grease in there.. it spins it around that wheel and all the lighter debris and oil fly out of the wheel into container containing the wheel? like gold panning except in this case the gold left in the pan is the waste crud you dont want and the water spilled out of the pan in this case is the good even cleaner oil?

[@Rharaldseide]

yes its how it works i heat the oil to 120c so its dry no water in the bowl only gunk and it setles in 1000l conteiners before centrifuge I usalt run a bach og 800l a day and clean it

[@turtlemann14]

i think i am going to make one, how thick did you leave the bowl? and i take it it's a 10" bowl? i am just weary of scattering a 12" bowl at that speed.

[@sumitroy6893]

I want to remove sub 1 micron carbon particles from furnace oil, should this centrifuge at 7000rpm do the job and what is the rated flow lpm.

[@Rharaldseide]

ca 1,5lpm but its the preehetimg that is limmiting in my settup i pre heet to 120 degrre c it shold cleen 1 microon carbon but i have not tested

[@sumitroy6893]

@@Rharaldseide thanks What cent. force you achieve Should 6000g do the job And the centrifuge holds how many gallons. I have to work with very low lpm.

[@pol1on1]

hi got to ask you do you put that nice clean oil straight in your fuel tank without any other treatment ? and if so what type of car engine old mechanical fuel pump or new Common rail (high pressure) ? and when casting the alloys or aluminum is it as simple as melt it a pure into a sand or fix mold or do you have to add chemicals? will appreciate any help thanks

[@Rharaldseide]

Hi i put it strigth in to a 1997 mod Mercedes 3L turbo diesel with the om606 engine 1 tank system (mixed with some diesel in winter time) and i have a 1995 mod Opel Vectra A 1.7td isuzu diesel engine with a 2 tank system the Opel has run ca 35000km on free stright wvo and has payed for it self

[@pol1on1]

Thanks mate you helped me heaps

[@irajbadrian2142]

May i make it from brake drum? Thanks for reply

[@Rharaldseide]

Probarly google is your frinde some made bowl from old car gear converters.

[@Rharaldseide]

Probarly google is your frinde some made bowl from old car gear converters.

[@irajbadrian2142]

Hi What is material of bowel?aluminium?

[@Rharaldseide]

Yes old car rimms

[@Madnesswillensure]

Still have it and not using it? I want to buy it from you if you dont use it any longer. Cheap shipping inside Norway. :)

[@Rharaldseide]

MrMadness hei just put 3500 liters thrue it 👌 still have it and need it so its not for sale😀

[@Madnesswillensure]

@@Rharaldseide great to hear. Hoping to copy your work but using a 2000w grinder as a motor for it. Great video!

[@Rharaldseide]

MrMadness yes the 7 kw motor i use is overkil but you use woth you have but a grinder motot running for days may die ... i can run 800-1000 liters a day but the heating that is a problem to i heat to 120 c before the centrifuge

[@noahd8673]

What exactly is powering it, cause the rotation?

[@Rharaldseide]

noah its a elecrtic Motor 7 kw

[@noahd8673]

@@Rharaldseide that makes more sense, like i thought u were using so some sort of pressured system... what was all the tubing for?

[@Rharaldseide]

noah he its for draining when i stopp the centrifuge

[@Rharaldseide]

Wouldn't that be too simple? Have you tried to make one with Brake Drum??:-)

[@grapsorz]

you are from norway? where in the contry do you live?

[@Rharaldseide]

Ja Kopervik / Karmøy

[@kamelletigre328]

Nice work

[@eddiesasquatch8124]

Awesome man, but can you make a made poor man man's version from salvaged discarded on Street side which is very hard to get here now on Staten Island NY using a brace(hand drill), files, hamers, chisels, punches, hand saw for Wood, hacksaw which will filter out all oils of water and particulate matter?

[@jimrojas62]

Nice build. But not everyone has access to a lathe, or even have the required skills to do all this. I know I don't. Why not just use stainless steel bowls? There is a video of a guy that used a torque converter which is basically shaped the same way.

[@bushratbeachbum]

Do you have a link to that video Jim Rojas?

[@jimrojas62]

@@bushratbeachbum Let me see if I can find it.

[@jimrojas62]

@@bushratbeachbum kzbin.info/www/bejne/fH-mXoOMhM9gnLs

[@bushratbeachbum]

Hmm. Not what I want to do. I've got a decent workshop though so I'll lost foam cast a bowl then clean it up and balance it on the lathe

[@timspot100]

I NEED THIS YOU ARE BAD ASS AWSOME JOB

[@andrewyek]

u are amazing.. what all those machine you have there.. wow! not achievable for most of us.. sadly

[@Rharaldseide]

andrew ysk thanks used all my life gathering things for my shop😜

[@Rharaldseide]

Im not selling but it was made from wast so the cost isent much but its some houers put in to the project

[@feelgood2454]

I haven't tried but I don't see the difference. Anyway, these centrifuges don't actually remove much trash because the fluid doesn't stay inside long enough. Look up that video of the experiment with the red dye and you'll see it quickly spills over. You have to keep the solution inside the centrifuge for a longer period of time for separation to take place. PS. Simpler is usually better.

[@Duckyistrippin]

these centrifuges are just adapted. otr trucks have them to keep the oil clean between changes. thats why they are small and air driven. the design works, the dye test is a sales video.

[@bushratbeachbum]

You haven't tried but you know? Haha. No you don't.

[@pameladonnelly5843]

Excellent work! We know what is is like to melt metal, cast, mill, and lathe everything by hand here at #USfiltermaxx. It's hard work. Nice result!

[@feelgood2454]

Why didn't you just use a brake drum?

[@kieranh2005]

Weight, maybe?

[@Rharaldseide]

Hi the cost is not much. made from scrap:) but i dont plan to sell.

[@pl6867]

DIY???? Sure, if you happen to own a machine shop. Might as well post a DIY Boeing 747 ;)

[@Rharaldseide]

Paul List haha...) if serios diy you aquier the equipment needed to do it😜 but if diy is to use toylet rols taped to som stuff from the shop i agree its a bit over the top

[@Rharaldseide]

hehe :-)