Found this new centrifuge on another site's forum. Pricing looks pretty good and looks very well made. Take a look:

www.absolutecentrifuge.com

quote:

Originally posted by TopDog:
Found this new centrifuge on another site's forum. Pricing looks pretty good and looks very well made. Take a look:

www.absolutecentrifuge.com

Since you just joined today, I'm going to assume you are affiliated to the product and did not see this on another site's forum.

Is does look nice but the pricing does not look "pretty good." $1400 is not a good price nor is $650 for the motor and bowl. That is close to the same prices for a proven product. You can get a dieselcraft with a pump, motor and centrifuge direct for around $800.

This message has been edited. Last edited by: Graplr,

quote:

Since you just joined today, I'm going to assume you are affiliated to the product and did not see this on another site's forum.

You are obviously right, Graplr.

This is clearly a knock off of www.simplecentrifuge.com

Of course, both are loosely based on Buuuuuds centrifuge design.

The thing is, it looks like Absolutecentrifuge is infringing on Simplecentrifuge by simply borrowing the self draining feature drectly off of Simplecentrifuges bowl design.

If there was no patent, there is no recourse...

This message has been edited. Last edited by: welder,

Seems like there are a whole bunch of people that are making large size CF's for processing oils.

I got in on the initial stages of the one Leon @ wvodesigns.com did. The pre-buy price was just over $1k which I though was reasonable enough. Especially when splitting it with a friend, and we have available to us 200-400 gallons of WVO a month.

When Simple CF came out with their turnkey at $2200, I started to look around and found a few people making their own. I can't wait for my CF to get to my shop, I have ~1500 gallons to process before I pick up another drop :-(

Take a look at my new centrifuge, performance results (water PPM before and after cleaning), new lower introductory price of $1,200, and installation ideas. Contact me with any questions. www.absolutecentrifuge.com

Thank you

Currently working on supplying an accurate particle count analysis, before and after cleaning the oil with and without heat.

I have just completed updating the website with new pictures and information of the upgraded ABSOLUTE CENTRIFUGE production model. The centrifuge is delivered to your home/business completely assembled, only thing left for you to do is plumb to the fittings, plug into the wall, and flip the switch.

Upgrades include:
- All fittings welded to centrifuge.
- Oil dispensed through side of unit (allows unobstructed lid removal).
- Quick Disconnects used for quick and easy access/removal of bowl.
- All steel plumbing.
- Liquid Teflon sealant used on all fitting connections.
- Red illuminating rocker switch.
- Highest g-force (1,404g's) compared to competitors (=faster processing time!).
- Extremely quiet with virtually no vibration (only noise is from motor).
- Shipping time frame is 2 weeks.
- 100% Fabricated in USA.


Priced at $1,200 makes it the lowest priced gravity fed centrifuge on the market!
Price lowered to $550 for Bowl/Motor Mount/Motor for all of the DO-It-Yourselfers out there.

For more information please visit: www.absolutecentrifuge.com

Am I the only one who scratches his head in dis belief when people start talking about $1,000 and up to spin their oil clean? WVO is getting harder to find every day. How much longer is anyone going to be collecting enough oil to warrant this big an expense? Between the fricking government wanting people to get licenses and rendering companies and tallow businesses turning it into a commodity, my oil collection has fallen 70% in the last year. A couple years ago I had so much I was giving it away to people who wanted to "try it out". I don't know which I think is sillier, people who but one of these or the guys who have tooled up to make them. How long does anyone think there is going to be a demand for them? I suppose if diesel hits $5.00 a gallon and we start buying dirty WVO for $2.50 a gallon I be proven wrong.

Single pass centrifuges are the best way to process large quantitys of wvo. For those using who can use one 24/7 they are a bargain. For folks who only use enough wvo to spin them for a few hours a week I agree with you.

I agree, I don't think people should have to spend a small fortune on getting oil clean. The DIY spirit, starting with a mass produced oil cleaning centrifuge, is a good way to go. I made a considerable effort recently to get the cost of centrifuges down to a reasonable level for our customers. I imported a bunch, and negotiated hard with the supplier overseas, to get them landed into Vancouver, BC at a good price. I drove the 5 hours on WVO to get them, sat in customs and cleared them into Canada myself, and drove back with a load of them in the trunk. Such is the nature of the "industry" :-) On the site they went, at the best price I could stand to offer.

Add your own motor and fittings, etc., lots of info here and on the web to help you do that. I just wanted to provide our customers with a low cost option, and that's one way to do it.

In more general terms, I think a person really has to look at the cost/time of oil treatment versus the value of the engine, how much you will drive, etc. Spending a lot of money and time on an effort to make excellent oil from poor quality feedstock, for an older vehicle with relatively tolerant injection system (10 micron, let's say); a vehicle that is likely near the end of it's useful life anyway, does not make a lot of sense to me.

On the other hand, if one has a newer, less tolerant engine/system (TDI's, commonrail, etc.) and/or a really nice low mileage unit you plan to keep a long time, and which has a lot of life in it, then it warrants spending more time on finding better oil in the first place and then more time and money treating it.

The other thing we are seeing is some real efforts at co-ops lately. People are banding together and getting the cost of (maybe larger) centrifuges, tanks, etc. down by sharing the cost. That makes sense, too, if you can get enough oil and enough members.

Finally, there is the commercial aspect. The newer engines and higher pressure injection systems demand better, cleaner oil, and there are some people setting up centrifuges to serve that market as a business. For example, on that same load of centrifuges, I brought in a couple of larger ones. One was intended for a small business in the North that was planning to collect all the oil in a more remote town, and then clean it, and supply it to a lodge to run their generator. That makes sense, since what was happening was that a diesel-powered truck was traveling a long way up north, picking up oil, bringing it south, where some of it would then be processed into commercial biodiesel, then it would maybe be trucked all the way back north later, as B5 or etc. Better to just collect, filter, and use the stuff locally, they thought. So, their volume justified spending the money on a larger centrifuge as long as they don't spend too much on it.

I'm not sure if they went forward with the plan, I have not heard from the proponents lately, but the idea made sense so I hope that they did, even if they got a centrifuge elsewhere, a used one, whatever they decided, it's just good to see the oil used near where it is generated, in the most energy-efficient way possible.

The simple bowl style CFs do an OK job. I Would like to see an improvement on how the oil is introduced into to bowl. A small amount of "dirty" oil can splash out as it tries to merge with the fast moving wall of oil. If the oil could enter near the bottom outside corner of the bowl it would be difficult for oil to splash out or for dirt to quickly climb straight up and out.

I have a clear lid on the CF. I noticed oil drops and it appears the drops splashed out of the bowl.



Later I added a splash guard to help with the splashing problem.

quote:

I made a considerable effort recently to get the cost of centrifuges down to a reasonable level for our customers. I imported a bunch, and negotiated hard with the supplier overseas, to get them landed into Vancouver, BC at a good price. I drove the 5 hours on WVO to get them, sat in customs and cleared them into Canada myself, and drove back with a load of them in the trunk. Such is the nature of the "industry" :-) On the site they went, at the best price I could stand to offer.

I think we are talking about different kinds of centrifuges here Ed.

The ones sold by Plantdrive appear similar to the Dieselcraft centrifugal filters that require multiple passes for dewatering. While there are similar in expense to small single pass centrifuges they are not nearly as efficient. I know you don't want to miss an opportunity to insert a Plantdrive ad whenever the opportunity presents itself but..in this case it might mislead folks into thinking that the Plantdrive "centrifuges" are the single pass type. I am sure you don't want to do that.

Hi Dana

quote:

danalinscott
member
Posted 01 February 2009 08:58 AM Hide Post
Single pass centrifuges are the best way to process large quantitys of wvo. For those using who can use one 24/7 they are a bargain. For folks who only use enough wvo to spin them for a few hours a week I agree with you.

Dana

For a guy who spent a long time telling people on the internet that automotive centrifuges can't dewater WVO properly, only to be proven wrong by Sunwizards' technically accurate expirimentation, I don't think you should really be posting on centrifuge related threads Dana.

Anyone with a REAL background in engineering should have seen the flaw in your expirement BEFORE even performing the expirement, let alone "sharing" the flawed results. How you decided that in your expirement you should heat your WVO to a temp significantly less than the normal temp of motor oil in a hot engine is a total mystery...

I'm not being harsh, I'm simply stating known verifiable facts.

Anyway, regarding Eds' post about Plantdrive CFs, this thread never strictly specified what type of centrifuge was under discussion. It was started by the author to introduce a new single pass CF, but by the 4th post it was clear that the thread had a larger scope than the authors' new product. It would seem reasonable that any new thread introducing any new biofuels product should be expected to tolerate sub discussions comparing the new products with existing products that serve the same purpose.

Personally, I'd like to read how you came to the conclusion that single pass CFs were "the best way to process large quantities of WVO". The "best" can a pretty subjective thing.

quote:

Originally posted by danalinscott:
[QUOTE]
I think we are talking about different kinds of centrifuges here Ed.

The ones sold by Plantdrive appear similar to the Dieselcraft centrifugal filters that require multiple passes for dewatering. While there are similar in expense to small single pass centrifuges they are not nearly as efficient. I know you don't want to miss an opportunity to insert a Plantdrive ad whenever the opportunity presents itself but..in this case it might mislead folks into thinking that the Plantdrive "centrifuges" are the single pass type. I am sure you don't want to do that.

I am curious as to how centrifuge with a larger outside diameter which spins slower and imparts a smaller
G force can be considered in any way less effective than a smaller fuge that spins much faster and imparts almost twice the G force.

quote:

Originally posted by AbsoluteCentrifuge:
I have just completed updating the website with new pictures and information of the upgraded ABSOLUTE CENTRIFUGE production model. The centrifuge is delivered to your home/business completely assembled, only thing left for you to do is plumb to the fittings, plug into the wall, and flip the switch.

Upgrades include:
- All fittings welded to centrifuge.
- Oil dispensed through side of unit (allows unobstructed lid removal).
- Quick Disconnects used for quick and easy access/removal of bowl.
- All steel plumbing.
- Liquid Teflon sealant used on all fitting connections.
- Red illuminating rocker switch.
- Highest g-force (1,404g's) compared to competitors (=faster processing time!).
- Extremely quiet with virtually no vibration (only noise is from motor).
- Shipping time frame is 2 weeks.
- 100% Fabricated in USA.


Priced at $1,200 makes it the lowest priced gravity fed centrifuge on the market!
Price lowered to $550 for Bowl/Motor Mount/Motor for all of the DO-It-Yourselfers out there.

For more information please visit: www.absolutecentrifuge.com

Is that 7.5 gph the maximum flow rate?

quote:

Originally posted by OilItRight:
Am I the only one who scratches his head in dis belief when people start talking about $1,000 and up to spin their oil clean?

I agree with you but for me, the disbelieving head scratching is more when I read about people spending Thousands on Conversion " Kit's" or having their vehicle converted by someone else.

I often read of people paying thousands of dollars for parts or kits to convert a vehicle the same as mine which I did for about $150 here in oz where everything is about double to triple the price it is in the states.

I live literally within a Mile of the Diesel craft CF Factory ( or at least the company that makes them for Dieselcraft to stick their name on) and it is more expensive for me to go down to the factory and pick one up that what they can be bought in the states for. There's commercial Logic for you!

As for $1200 for a CF, well I guess there are some people that would pay anything to get what they want. Some people pay what? , 9 grand for an automatic Bio diesel processor? I spose $1200 for a CF pales into comparison.

If you were processing oil commercially, no probs, Cost is not an issue when the return will take about a fortnight. For the home user, well, it seems many people in the US talk about ( and use more ) gallons than we here in oz talk about Litres. If some people are burning the amount of oil they seem to be and are trying to offset their gluttony by burning Veg instead of Dino, then again they may be prepared to spend this kind of money on a CF.

Personally I find that having set up 4 IBC/ Totes as settling drums, I can produce more than enough oil for what I need for a couple of cars, but then in not running trucks with 7L engines or driving across the country regularly. My oil processing setup cost next to nothing other than a bit of scrounging, creative engineering and problem solving mixed in with some inventiveness in working with what I could get cheaply and easily.
To me, this has always been a big attraction of the Veg game.

Some people want to be seen to be green but don't want to get any dirt under their fingernails so I guess these kinds of things have appeal to this market as well. I guess the more you charge for a product the further it moves you into a consumer bracket for whom money is not an issue.

Perhaps like a lot of things we will shortly start to see the " elitist" Veggers whom buy all their Veg fueled conversions and equipment rather than the grass roots system of making it yourself.

Fabricator,

To answer your question regarding flow rate, no 7.5GPH is not the maximum flow rate. We have had success cleaning oil at 15GPH at 150*F (similar with WVO Designs and Simple Centrifuge). We should actually have faster flow rates due to our CF having more g-force (1,404g's vs. 1,269g's). The first round of tests were standardized at 7.5GPH so we could have a uniform benchmark, we are currently in the process of testing more flow rates for additional water analyses and particle counts.

What makes gravity fed centrifuges more efficient is not the bowl size, or the g-force, it is the ability to adjust the flow rate while maintaining g-force constant. I am not saying spinner CF's do not work at removing contaminants, but what I am saying is that it is a fact that it takes multiple passes to achieve the same results "One pass is not realistic and 10 passes is over kill. Generally 2-5 passes does it."- DieselCraft.com. The reason for this is because spinner CF g-force is dependent on fluid pressure (=flow rate), and the flow rate is too fast for the g-force to efficiently remove the contaminants with one pass, so really the published flow rate must be divided by the number of passes to equal the "true" flow rate. There are also many people who have single tank conversions and fats and/or partially hydrogenated oils (PHO) have been shown to obstruct fuel from getting to the engine because their conversions lack an in-tank fuel heater. You can not achieve these results with spinner CF's because the oil MUST be heated to reduce viscosity to spin the rotor. By heating the oil the fats/PHO will melt into the oil and you will not achieve separation.

No matter how you look at it, gravity fed CF's allow the user to alter more oil cleaning parameters independently of each other, unlike spinner CF's where temperature, flow rate, RPM's and ultimately g-force are all interlinked. Gravity feeding the CF provides the user with more control and ultimately more cleaning options.

And lastly to address Fuelfarmer's remark on making sure the oil does not splash outside of the bowl. We have accomplished this by dispensing oil inside the bowl ~.5" from the bottom so that it does not have a chance to spray or splash outside of the bowl while it is spinning. Please see picture below for a visual example.

Ok, thanks.

quote:

Personally, I'd like to read how you came to the conclusion that single pass CFs were "the best way to process large quantities of WVO". The "best" can a pretty subjective thing.

Single pass CFs are more cost efficient. They use less energy and can be paired with other technologys to double or triple their efficiency compared to "spinner" type centrifugal filters. Best is not all that subjective to those that have used both.

quote:

For a guy who spent a long time telling people on the internet that automotive centrifuges can't dewater WVO properly, only to be proven wrong by Sunwizards' technically accurate expirimentation, I don't think you should really be posting on centrifuge related threads Dana.

Anyone with a REAL background in engineering should have seen the flaw in your expirement BEFORE even performing the expirement, let alone "sharing" the flawed results. How you decided that in your expirement you should heat your WVO to a temp significantly less than the normal temp of motor oil in a hot engine is a total mystery...

I'm not being harsh, I'm simply stating known verifiable facts.

Please get those "vertifiable facts" strait before posting them as a personal attack. They are neither facts nor verifyable.

AbsoluteCentriguge,
Take a look at the photo of the oil on the lid of the CF without the splash guard. The oil is also dropped very near the bottom of the bowl. The oil does not make a smooth transition into the wall of fast moving oil. Most of the oil will bounce out from the wall and slam back in before it merges. This is where you get some splashing. Try placing a glass cover a few inches above an operating bowl and look for drops about 180 deg. past where the oil is dropped. It is not a lot of oil, but some will splash out.