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 )
Ultrasonic filter cleaning
I have often wondered if an ultrasonic cleaner could be used to recover oil from filters and other soiled items. In this experiment I took a drained filter and tried to recover as much oil as possible. While it recovered more than expected, the recovered oil was very heavy and clearly loaded with particulate. The centrifuge would remove the heavy particulate easily, releasing the lighter used oil. I need a deeper ultrasonic cleaner to put this into practice full scale.
Started with the ultrasonic cleaner filled with clear heated water. This is the filter to be cleaned. This is the start of the run.
Started with the ultrasonic cleaner filled with clear heated water. This is the filter to be cleaned. This is the start of the run.
This is at the end of the run. I then rigged up the oil skimmer to lift off the oil. This is the beginning of the recovery. Drip by drip the skimmer recovers the oil.
This is at the end of the run. I then rigged up the oil skimmer to lift off the oil. This is the beginning of the recovery. Drip by drip the skimmer recovers the oil.
Within about 10 minutes the oil has been lifted from the oil. The water looks milky which is likely due to the detergents in the oil. This is the final result, about an inch of recovered oil. A lot more than expected. The oil is thick, almost tar like. I know that the centrifuge could easily recover the oil and cake the particulate. With a deeper cleaner the filter could be fully submerged and likely render even better results. Some more experimentation is in order.  
Within about 10 minutes the oil has been lifted from the oil. The water looks milky which is likely due to the detergents in the oil. This is the final result, about an inch of recovered oil. A lot more than expected. The oil is thick, almost tar like. I know that the centrifuge could easily recover the oil and cake the particulate. With a deeper cleaner the filter could be fully submerged and likely render even better results. Some more experimentation is in order.  
Numeric Control, LLC
PO Box 916
Morton, WA 98356