Nylon would be a much better because safer choice.

Aside from the above: My friend and I are each about to purchase a commercially produced centrifuge. Since we would be buying two of them we are getting them for $500/each. Each centrifuge holds 600CC (equals about 20 ounces) of dirt. They are commercially produced units specifically made for the use on Biodiesel/Vegetable oil (they come with Viton seals/gaskets etc.) and no they are not the incredibly expensive Dieselcraft ones.

Why am I writing this? When I saw blhfla's concept I liked it due to the price but now it has gone up to almost the price of a what I call a "plug and play" model (i.e. the type of centrifuge we are about to buy).
I know I am making an assumption now but the $430-$450 blhfla's concept is going to cost (still) does not seem to be the the end of the rope. In addition to that it still will require major additional manufacturing, time and funds.
WVO/SVO is messy to deal with so the centrifuge set up needs to be done right, no matter if it is self-made or commercially produced and that can't be done very cheap. At least that's what I think.

We still haven't placed our order. If someone has a good argument for me why to rather get a self made unit (blhfla's concept) please post it.

Thanks!

blhfla I was hoping for a more professional answer (maybe someone else has one?)

I don't have a "preference for using Chinese manufacturing" (where did I write that?) The company I work for is having filterheads made there.
Aside from the above I have been trying to save you from a LOT of legal trouble in connection with aspects associated with a failing product.
UHMW would have been a BAD CHOICE! Like it or not. Nylon is a (much) better choice though still not perfect (don't worry, I am not going to go in to detail about the why)

Regarding your statement:

"All that "safety crap" about lead paint toys, tainted food, exploding tires, that was probably all just coincidence"

How would you like this one instead?>>>

"All that "safety crap" about breaking rotors, injured customers, exploding equipment, that was probably all just coincidence"

But why do I care?

Good luck!

Engineer,

Care to enlighten us on who you will be purchasing from?

thanks!

Respectfully, I wish that you would go into more specifics, especially from the start. The issue that we're all having with your post's Engineer, is that you are being too cyrptic.

Granted, no one is asking you to reveal your identity or where you work; but as of late, the moment you seem to start making a point, you also seem to trail off at the end.

(e.g. "All I have are technical bulletins and material data sheets with lots of calculations and test results from who I work for and I cannot post nor email those.") Fine, then please direct everyone to some comparative information from an outside source, regarding the properties of UHMW.

Then there's, ("My friend and I are each about to purchase a commercially produced centrifuge. Since we would be buying two of them we are getting them for $500/each".) What centrifuge or rather who makes it?

You see, this is the kind of information that everyone needs to make an informed decision. So, if you or anyone has any information that is of value to blhfla with regards to the final product, then please provide the forum with the rational which favors one material over the other, rather saying that it either won't work, or that you won't go into specifics. Thank You.

"I don't want to disclose who I am buying it from since I don't want anybody here thinking I am trying to divert business away from blhfla. "

Fair enough...could you maybe suggest a way to contact you offline from this forum? I don't think you are trying to divert business away from blhfla, but I do want to have the best solution possible.

Oh puhhhhhhhhhhhlease, you're a smart guy, or so you tell us, why would you put your 10 year olds e-mail on a public forum. You already know not to put @ so you should be able to get a trash email account. Your familiar with hotmail, check and see if secretengineer@hotmail.com is taken.

Can anyone else say shill

Hey, your product sucks but the one I'm getting is better and just a little more money. Hey everyone, your in luck, I haven't put my order in yet. You can all jump on board, here's my e-mail address.

Not on your life would I give $500 to a guy like this.

60 X $500 = $30,000.

Not bad for a quick hoax, huh

-------------------------
1994 Chev Suburban 6.5 diesel. Purchased with 162,000 miles. Installed GreaseCar kit. Now has 208,000 miles. Relocated PMD to air filter box.

"My grandfather rode a horse. My father drove a car. I flew a jet-plane. My son will ride a horse."

DAMN! we have one serious great guy(bruce and his friends) trying to help us, doing great job developing a centrifuge ;)

please "engineer" go away!!!
we don't need guys like you, go home and sell your scam to your friends and family instead

check if one of these are avalable

fake_engineer@hotmail

scam_engineer@hotmail

scamguy@hotmail

just blowing off some steam, sorry everyone else

keep up the good work bruce ;)

Hey, "Engineer":

I see you just registered for this forum this month, and now you say you are already buying a centrifuge. Wow, that's some quick progress for a newbie. So tell us, how has a smart guy like you filtered your grease so far? How long do yout settle it? Do you use salt? What temperature do you bring your grease to during settling? Does your car have one tank, or two? What year, make and model car do you have? How often do you change filters? What kind of filter do you use, both during processing and on the road? Do you add heat, or do you rely on coolant heat? What's your switchover temp? Do you have a manufactured kit, or is it a DIY assembly? Is is HIH or HOH? What's your purge time? Do you use copper lines and fittings, or some other material? (You seem to know a lot about materials, so I assume your system is state of the art.) What kind of valves do you use? What arrangements have you made to collect grease? How do you process it? How long have you been greasing?

Most important, do you have any idea whatsoever what the hell I am asking?

In other words, what brings you to this community, hmmmmm?

Inquiring minds want to know.

For some inexplicable reason, the word "troll" comes to mind.

Jim

-------------------------
It's the only planet we have, folks; treat it kindly.

I don't need to pretend to be something I'm not.
I signed up on this board trying to add my expertise. If you like my input - take it. If you don't like it or agree with it please continue with what ever you may think or plan to do.

We all are free to think and do what we want.

Thanks.

Add me to the list, I'll even pick it up since im in FL

back to topic

blhfla, any updates? Getting itchy to spin some oil!!

make sure your family is on board with all these hours you are devoting...

Yes, I would be interested. How does a centrifuge seperate the wvo from the water? How big is the system? Would it work on board a shuttlebus/RV? Can it turn with an electric motor or a belt from the engine?

Been looking for a centrifuge system and came across this thing you are trying to build here but man Dude your price hase gone up quiet a bit, it is not a turn key system involving a lot of follow up fabrication and additional $$ after the initial purchase plus someone who seems to know what he is talking about is saying your choice of material is not a good one.

Even if Engineer is wrong what convinces me to stay away from this is as was mentioned earlier there is a reason why no plastics are being used for commercially produced centrifuge rotors.

OK, I havent been on the boards for a while but since i am a somewhat interested bystander i gotta say a couple of things.

First of all, To "Greasemaster" You are an obvious shill. You joined minutes ago and have made one post which basically says, "OK Guys, even if engineer is wrong i still believe him" Nice try

Second to Fastcote: Be careful of the references you cite to prove a point. The application you cited was for a DISPOSABLE centrifuge rotor bowl. Disposable implying short term use then a new one put in, which is exactly what Engineer was alluding to. The bowl may work for a while then it will drift off true and there might be bad results at that point.

Me personally, I am on the fence with the whole thing. I am still listed as a potential customer, but i definitely dont want to be one of the first run. By that time, i just might have moved to a new city where proximity to my job no longer makes greasing feasible.

So I will stay listed for now, but I do agree with Fastcote in paraphrase in that if you dont have something good to say, then either back it up with verifiable documentation or dont say anything.

I am pretty sure that Greasecar did not intend for their forum to become the latest revision of Mad magazine SPY vs SPY

Good luck

Lee

-------------------------
Novelty+Economy+Environment= NEE.....
I am a Knight that says NEE
__________________________________________
NoName - 2002 Jetta TDI - Greasecar setup - RC2 - Rocki Mod

Quote:
Originally posted by: bodycounter
OK, I havent been on the boards for a while but since i am a somewhat interested bystander i gotta say a couple of things.

First of all, To "Greasemaster" You are an obvious shill. You joined minutes ago and have made one post which basically says, "OK Guys, even if engineer is wrong i still believe him" Nice try

Second to Fastcote: Be careful of the references you cite to prove a point. The application you cited was for a DISPOSABLE centrifuge rotor bowl. Disposable implying short term use then a new one put in, which is exactly what Engineer was alluding to. The bowl may work for a while then it will drift off true and there might be bad results at that point.

Me personally, I am on the fence with the whole thing. I am still listed as a potential customer, but i definitely dont want to be one of the first run. By that time, i just might have moved to a new city where proximity to my job no longer makes greasing feasible.

So I will stay listed for now, but I do agree with Fastcote in paraphrase in that if you dont have something good to say, then either back it up with verifiable documentation or dont say anything.

I am pretty sure that Greasecar did not intend for their forum to become the latest revision of Mad magazine SPY vs SPY

Good luck

Lee

-------------------------
Novelty+Economy+Environment= NEE.....
I am a Knight that says NEE
__________________________________________
NoName - 2002 Jetta TDI - Greasecar setup - RC2 - Rocki Mod
Shill? lol I have been reading this Forum for a while, no need to be a member to do so.
If you wanna post you have to sign up and that's what I did.

Anyway as you stated yourself:

"Second to Fastcote: Be careful of the references you cite to prove a point. The application you cited was for a DISPOSABLE centrifuge rotor bowl. Disposable implying short term use then a new one put in, which is exactly what Engineer was alluding to. The bowl may work for a while then it will drift off true and there might be bad results at that point."

Whether I am new to THIS board or not does not change the fact there are NO plastics used for rotors in commercially produced centrifuges used for engine oil or vegetable oil as in this case.

Some of you guys just don't want to hear it huh...well it's not my money...lol

Quote:
Originally posted by: GreaseMaster
Some of you guys just don't want to hear it huh...well it's not my money...lol
Just go away!

-------------------------
Just keep'n my money where it belongs.......MY WALLET!

Bruce,

If you are still open to design suggestions, I would like you to consider making the legs long enough to allow a six gallon pail to fit below the drain output. I am thinking the ideal setup would be a pail above and below, both 5-6 gallon. Bucket heater ($50 Ebay) in the top. That would make a nice small gravity feed setup. No pumps, no mess.

Thanks.

p.s.- another email sent.

I agree with Fastcote, make it a concerted effort to find the breaking point of the entire unit with regards to heat,rpm & material tolerances. Given that we've had the likes of "Engineer" touting the limitations of whatever material should be used for the rotor, than I believe that an actual stress test is in order, to see where it actually fails. In short, leave nothing to either speculation or guesswork.

Also, by discovering these tolerances at the shop, safety parameters can be established regarding the proper use of the centrifuge. Otherwise, you could risk some idiot doing something to hurt themselves, whereby having the efficacy of the centrifuge come into question.