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 1296 - Latest photo update 2021/12/10 18:48:01
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 ( 8 )
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 ( 47 )
Oil Skimmer ( 8 )
Our Shop ( 37 )
Peristaltic Pump ( 32 )
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 )
Sight Glass ( 6 )
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 )
 WVO Pump
The feed pump that I devised is a wrecking-yard lube oil pump, inside the pan type such as a V-8 Chev. It hangs in a 55 gal barrel on the end of a pipe. The extended drive shaft runs through a flanged bearing to a horizontal chain drive. This is where sprockets can be changed to set final speed. I used the gear box from a junked garden tiller for the primary reduction. Power is provided by an old washing machine motor. The oil pump is a positive displacement pump. You put your vice-grip pliers on the shaft, turn it by hand and count the number of turns that it will take to provide the gallonage you want. Then you jockey the drive ratios to achieve thaat many turns per hour and you have it. It has been absolutely dependable for the last two years of operation. The box on the right is a cooker that heats the oil to around 200 F. The oil goes from there to the centrifuge at the same rate that the feed pump takes it from the barrel. The centrifuge box is to the right of the heater, partially visible. I hope this helps some one. Jack
This is the pump and heater arrangement that Jack has been using for the last two years. Oil pump from a Ford diesel tractor. It was a really easy one to mount. It's bolted to a flange on the end of the pipe that carries the oil out. The drive shaft extension runs up parallel to the pipe. The self-aligning bearing makes lineup easy. The drive. A belt drive and small tiller gear provides the primary reduction. The final delivery is set by sprocket selection on the horizontal chain drive. I haven't counted it, but pump is probably turning around 15 RPM with this pump.
This is the pump and heater arrangement that Jack has been using for the last two years. Oil pump from a Ford diesel tractor. It was a really easy one to mount. It's bolted to a flange on the end of the pipe that carries the oil out. The drive shaft extension runs up parallel to the pipe. The self-aligning bearing makes lineup easy. The drive. A belt drive and small tiller gear provides the primary reduction. The final delivery is set by sprocket selection on the horizontal chain drive. I haven't counted it, but pump is probably turning around 15 RPM with this pump.
The 1 cu.ft. oil heater. The thermostat controls it between 150-200' F. Oil is pumped over the side from the metering pump on the left, overflows into the centrifuge on the right. Your dandy centrifuge is inside that 1 cu.ft. box with the funnel thing on the top. At one point I calculated the speed at 4200 RPM, but I don't think it is running quite that fast. Oil drains from the bottom of the centrifuge box into the blue holding barrel. Here's another
The 1 cu.ft. oil heater. The thermostat controls it between 150-200' F. Oil is pumped over the side from the metering pump on the left, overflows into the centrifuge on the right. Your dandy centrifuge is inside that 1 cu.ft. box with the funnel thing on the top. At one point I calculated the speed at 4200 RPM, but I don't think it is running quite that fast. Oil drains from the bottom of the centrifuge box into the blue holding barrel. Here's another "sump pump" made similar to the metering pump, but made from an old truck engine pump, don't know what kind. It had a sloping mount flange which made it difficult to line up on the pipe. Try to get a pump with a flange to which the shaft is perpendicular. It runs around 850 RPM, is used to deliver oil from the holding barrel to the heated 95 gal. engine tank at around 7-8 gal/min.
Numeric Control, LLC
PO Box 916
Morton, WA 98356