Simple Centrifuge
Clean waste vegetable oil (WVO), bio diesel, lube oils, and even hydraulic oil in your garage
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Photo Gallery - This gallery represents the work over several years. Some designs have been replaced and/or updated as time progressed. Most images contain a date stamp visable on the large version. Please note the date when viewing. We are always experimenting with new concepts and designs. If you have any questions about any photo please contact us.
Total photos in gallery 1280 - Latest photo update 2016/07/11 12:37:36
Asterisk(*) indicates new photos in the past 30 days
Adapter 56C to 56J ( 15 )
Algae Recovery ( 42 )
Bacterial fermentation ( 1 )
Balancer Mandrels ( 8 )
Bearing replacement ( 25 )
Botry Culture ( 2 )
Building a gantry ( 16 )
Chestnut Extract ( 9 )
CNC Coolant ( 6 )
Coconut Oil ( 8 )
Construction ( 43 )
Contaminated diesel ( 2 )
Craig's Machine ( 31 )
Cross Drill End Bell ( 10 )
Crude oil ( 5 )
Custom motor shaft ( 23 )
Experimental Motor ( 19 )
Explosion proof motor ( 3 )
Feed Cone ( 29 )
Feed Cone with Fins ( 6 )
Feed Tube ( 3 )
Filter Paper ( 7 )
Ford on WMO ( 2 )
Foundry ( 5 )
Foundry 2 ( 18 )
Gear pump ( 2 )
Grinding fluid ( 19 )
Grinding fluid 2 ( 14 )
Heaters ( 9 )
History ( 11 )
Homemade Diesel ( 7 )
Homemade diesel 2 ( 41 )
Homemade Diesel 3 ( 15 )
Homemade Diesel 4 ( 12 )
How it works ( 3 )
Hydraulic Oil ( 3 )
Keyless Bushing ( 11 )
Lab Centrifuge ( 16 )
Lab Centrifuge 2 ( 18 )
Lapidary Cutting Oil ( 2 )
Lock motor shaft ( 6 )
Magnesol removal ( 6 )
Microwave heater ( 7 )
Misc. Mods ( 4 )
Mitsubishi 4x4 on WMO ( 10 )
New Feed Cone ( 16 )
New Feed Tube ( 7 )
New Rotor 2013 ( 24 )
New rotor design ( 16 )
Oil and Contaminants ( 42 )
Oil Skimmer ( 8 )
Our Shop ( 37 )
Peristaltic Pump ( 29 )
Powder Coating ( 10 )
Renderings ( 8 )
Retrofit rotor for WVOD ( 17 )
Rework Mount ( 10 )
Rotor fins ( 34 )
Rotor Fins One Piece ( 6 )
Seal ( 6 )
Sea Weed ( 4 )
Sediment removal ( 16 )
See thru lid - Building ( 16 )
See thru lid - Testing ( 28 )
Skim Tube ( 56 )
Skim Tube for VCO ( 8 )
Small Settling Tank ( 14 )
Tanks ( 9 )
Tanks - Complete System ( 13 )
Tap drain ( 10 )
Testing Seal Screws ( 6 )
Tests by fuelfarmer ( 22 )
Turn key machine ( 38 )
Two part rotor ( 30 )
Ultrasonic filter cleaning ( 8 )
Updates ( 26 )
Users Machines ( 34 )
Vacuum pickup ( 3 )
VW on WMO ( 7 )
Water-Oil Seperator ( 7 )
Water trap ( 5 )
Wine Clarification ( 4 )
WVO Heat Tests ( 7 )
WVO Pump ( 6 )
WVO Tests ( 14 )
Oil and Contaminants
Photos we've taken while cleaning our machine.
Sample of dirt collected from waste vegetable oil. Sample of dirt collected from waste vegetable oil. Sample of some really bad oil we received. It took some time but we did recover about 100 gallons of good oil.
Sample of dirt collected from waste vegetable oil. Sample of dirt collected from waste vegetable oil. Sample of some really bad oil we received. It took some time but we did recover about 100 gallons of good oil.
This sample shows small water droplets that have collected in the bowl. This sample shows water rolling off the inner wall. The smudge is from a finger. Note how fine the material captured is. Lube oil sample. Note the large water droplets that collected on the outer wall.Lube oils remain blackened but the centrifuge removes a lot of dirt and water that would normally cause burn issues.
This sample shows small water droplets that have collected in the bowl. This sample shows water rolling off the inner wall. The smudge is from a finger. Note how fine the material captured is. Lube oil sample. Note the large water droplets that collected on the outer wall.Lube oils remain blackened but the centrifuge removes a lot of dirt and water that would normally cause burn issues.
Great still image of the centrifuge in motion. Machine is shown without the lid in order to show the bowl. Bowl awaiting cleaning. Note the large amount of water trapped by the centrifuge and the dirt caked to the wall. Photo of motor oil. Note the amount of anti-freeze that collected in the bowl.
Great still image of the centrifuge in motion. Machine is shown without the lid in order to show the bowl. Bowl awaiting cleaning. Note the large amount of water trapped by the centrifuge and the dirt caked to the wall. Photo of motor oil. Note the amount of anti-freeze that collected in the bowl.
Carbon and junk pulled from waste vegetable oil. Junk pulled from WVO. This is the fine carbon material that discolors wvo and plugs filters. Early results from running COLD vegetable oil at about 1 gallon per hour. Note how the hydrogenated portion collects as shortening. Slow but very nice for making winter fuel.
Carbon and junk pulled from waste vegetable oil. Junk pulled from WVO. This is the fine carbon material that discolors wvo and plugs filters. Early results from running COLD vegetable oil at about 1 gallon per hour. Note how the hydrogenated portion collects as shortening. Slow but very nice for making winter fuel.
This photo shows the sump below the bowl. This is where the bowl drains to on shutdown. This should be cleaned daily. Cold vegetable oil Cold vegetable oil
This photo shows the sump below the bowl. This is where the bowl drains to on shutdown. This should be cleaned daily. Cold vegetable oil Cold vegetable oil
100 mesh screen filter in a Golden Rod housing. This acts as a water trap and catches the big chunks ahead of the centrifuge. The left side has been wiped clean and the right, by contrast, shows the dirt captured. This is a picture of the oil and water drained from the Golden Rod filter shown in the previous photo. The water is the brownish color at the bottom half. It is important to capture as much water as possible ahead of the centrifuge. Water takes up a lot of space in the centrifuge. The Golden Rod housing makes a perfect low spot in the line. This is the sample, from the last photo, after it sat over night. If you are not using a water trap I would suggest it. This is the water captured from 100 gallons of crank case oil.
100 mesh screen filter in a Golden Rod housing. This acts as a water trap and catches the big chunks ahead of the centrifuge. The left side has been wiped clean and the right, by contrast, shows the dirt captured. This is a picture of the oil and water drained from the Golden Rod filter shown in the previous photo. The water is the brownish color at the bottom half. It is important to capture as much water as possible ahead of the centrifuge. Water takes up a lot of space in the centrifuge. The Golden Rod housing makes a perfect low spot in the line. This is the sample, from the last photo, after it sat over night. If you are not using a water trap I would suggest it. This is the water captured from 100 gallons of crank case oil.
Look at all the water that the centrifuge captured after the water separator. This is what happens to your mesh screen filter if it becomes clogged by slimy waste. This was a ahead of the pump and the pump collapsed it. Better to lose a screen then the pump. Used automatic transmission fluid. This is from a 5 gallon sample. The oil had about 15k miles on it. This is after passing through a 10 micron paper fuel filter (Golden Rod element 470-5). The material captured was smaller than the filter could capture, this demonstrates the effectiveness of the centrifuge. I imagine that this is clutch material and dirt normally found in the transmission.
Look at all the water that the centrifuge captured after the water separator. This is what happens to your mesh screen filter if it becomes clogged by slimy waste. This was a ahead of the pump and the pump collapsed it. Better to lose a screen then the pump. Used automatic transmission fluid. This is from a 5 gallon sample. The oil had about 15k miles on it. This is after passing through a 10 micron paper fuel filter (Golden Rod element 470-5). The material captured was smaller than the filter could capture, this demonstrates the effectiveness of the centrifuge. I imagine that this is clutch material and dirt normally found in the transmission.
This is the scum line from the two part rotor. You can see clearly the separation line from the dirty waste and the cleaner oil. This photo demonstrates the true value of the feed cone assembly. By forcing all the incoming oil to the back of the rotor only the lightest oil will make it to the front lip and out. This photo shows the rotor portion of the last photo. This was about 80 gallons of waste motor oil. Gunk captured from 15 gallons of motor oil. I feel sorry for the log truck this oil came out of. It was nasty.
This is the scum line from the two part rotor. You can see clearly the separation line from the dirty waste and the cleaner oil. This photo demonstrates the true value of the feed cone assembly. By forcing all the incoming oil to the back of the rotor only the lightest oil will make it to the front lip and out. This photo shows the rotor portion of the last photo. This was about 80 gallons of waste motor oil. Gunk captured from 15 gallons of motor oil. I feel sorry for the log truck this oil came out of. It was nasty.
This is some of the carbons and dirt captured from 15 gallons of waster motor oil. The oil passed through the 10 micron filter on the left ahead of my feed pump. The carbons formed a very dry cake inside the centrifuge. This is the separation line between the clean and dirty oil. The curved shape really improves the performance. Captured water in the centrifuge.
This is some of the carbons and dirt captured from 15 gallons of waster motor oil. The oil passed through the 10 micron filter on the left ahead of my feed pump. The carbons formed a very dry cake inside the centrifuge. This is the separation line between the clean and dirty oil. The curved shape really improves the performance. Captured water in the centrifuge.
After draining the rotor this is the bottom half showing the cake on the wall. This is the cake after it drained and was removed from the rotor. Surprisingly it came out in one piece. Shows how the centrifuge captures water.
After draining the rotor this is the bottom half showing the cake on the wall. This is the cake after it drained and was removed from the rotor. Surprisingly it came out in one piece. Shows how the centrifuge captures water.
Forgot to check the centrifuge. It was really full. Drained about a pint of water off it. I don't recommend letting the waste collect so thick. Super full centrifuge. Super full centrifuge bottom.
Forgot to check the centrifuge. It was really full. Drained about a pint of water off it. I don't recommend letting the waste collect so thick. Super full centrifuge. Super full centrifuge bottom.
Note how dry the cake is. Cake formed from used motor oil. It often has a thick tar consistency. This is a few weeks worth of cake that was collected. This is a 5 gallon bucket and it is half full. Notice how dry the cake is, this is a good indication that the centrifuge flow was matched well to the contaminants in the oil. This was from used motor oil.
Note how dry the cake is. Cake formed from used motor oil. It often has a thick tar consistency. This is a few weeks worth of cake that was collected. This is a 5 gallon bucket and it is half full. Notice how dry the cake is, this is a good indication that the centrifuge flow was matched well to the contaminants in the oil. This was from used motor oil.
You can see the dryer layer with a grease layer on top. The brownish spots on the bottom are water droplets. Water often collects between the solid cake layer and the grease layer. Diesel fuel contaminated with water and heavy oil. Diesel fuel contaminated with water and heavy oil.
You can see the dryer layer with a grease layer on top. The brownish spots on the bottom are water droplets. Water often collects between the solid cake layer and the grease layer. Diesel fuel contaminated with water and heavy oil. Diesel fuel contaminated with water and heavy oil.
Diesel fuel contaminated with water and heavy oil. Diesel fuel contaminated with water and heavy oil. This is the residue from 10 gallons of hydraulic oil that came out of a farm machine. After centrifuging the oil look clear and clean and was put back into service.
Diesel fuel contaminated with water and heavy oil. Diesel fuel contaminated with water and heavy oil. This is the residue from 10 gallons of hydraulic oil that came out of a farm machine. After centrifuging the oil look clear and clean and was put back into service.
Numeric Control, LLC
PO Box 916
Morton, WA 98356