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 )
 Grinding fluid
This is Castrol Honilo 710 cutting lubricant. The customer wanted to see if the centrifuge could be used to remove the swarf. We ran fast as the funnel would take it. Samples were at room temperature and shaken prior to centrifuging. UPDATE: The customer sent some photos.
Prior to starting we wanted to see what had settled out of the lubricant naturally. All samples were shaken prior to pass through the machine. Prior to starting we wanted to see what had settled out of the lubricant naturally. All samples were shaken prior to pass through the machine. We poured the samples by hand at about twice as fast as shown in this photo. The machine required two full quarts to fill the centrifuge rotor.
Prior to starting we wanted to see what had settled out of the lubricant naturally. All samples were shaken prior to pass through the machine. Prior to starting we wanted to see what had settled out of the lubricant naturally. All samples were shaken prior to pass through the machine. We poured the samples by hand at about twice as fast as shown in this photo. The machine required two full quarts to fill the centrifuge rotor.
This is the centrifuge rotor partially disassembled. You can see the junk collected as a dark line around the outer edge. Material collected from 1 gallon. Material collected from 1 gallon.
This is the centrifuge rotor partially disassembled. You can see the junk collected as a dark line around the outer edge. Material collected from 1 gallon. Material collected from 1 gallon.
Inside of the feed cone revealed the the material separates easily. This material collect above the discharge slots. This shows the drain path. This should be cleaned when the machine is cleaned. This material drained well and quickly. This is the machine on shutdown with the lid removed.
Inside of the feed cone revealed the the material separates easily. This material collect above the discharge slots. This shows the drain path. This should be cleaned when the machine is cleaned. This material drained well and quickly. This is the machine on shutdown with the lid removed.
After this customer purchased a machine it was determined that the 1/4 inch pipe was too small to maintain the flow required of 2 or 3 gallons per minute. We decided to open up the feed to a 1/2 inch pipe. It was close be we were able to bore the id large enough in the the lid for the larger feed tube. Next we cut some o-ring grooves in a piece of stainless pipe for the new feed tube. We opted to use two o-rings. to help prevent the tube from moving and to ensure a good seal. The o-rings size is 2-017.
After this customer purchased a machine it was determined that the 1/4 inch pipe was too small to maintain the flow required of 2 or 3 gallons per minute. We decided to open up the feed to a 1/2 inch pipe. It was close be we were able to bore the id large enough in the the lid for the larger feed tube. Next we cut some o-ring grooves in a piece of stainless pipe for the new feed tube. We opted to use two o-rings. to help prevent the tube from moving and to ensure a good seal. The o-rings size is 2-017.
Next the 1 Test fit the lid before removing it from the lathe. O-rings installed.
Next the 1" to 1/2" reducer was installed. Test fit the lid before removing it from the lathe. O-rings installed.
Tube installed top side. Feed tube installed bottom side. This is the result, for more details look at Grind fluid 2.
Tube installed top side. Feed tube installed bottom side. This is the result, for more details look at Grind fluid 2.
We made the customer a custom top for their rotor that doesn't have the feed cone mounting. It was found that the feed cone caused too much back pressure at this high flow rate. By removing the holes the customer will increase their holding capacity by quite a bit.    
We made the customer a custom top for their rotor that doesn't have the feed cone mounting. It was found that the feed cone caused too much back pressure at this high flow rate. By removing the holes the customer will increase their holding capacity by quite a bit.    
Numeric Control, LLC
PO Box 916
Morton, WA 98356