Clean your engine oil, biodiesel and waste vegetable oil without disposable filters. 55 Gallons Per Hour Model
108 Gallons Per Hour Model
300 Gallons Per Hour Model

Remove contaminant particles as small as 1/10th of one micron from the oil steam without a filter. Follow the discussion
Download the Installation Guide (PDF)
Additional Pictures
Full Systems With Pump/Motor/Switch The centrifuge can handle maximum particle size of 500 micron at the input. The centrifuge nozzles are .045 inches/ 1.15 mm. However, for the safety of the pump, it is best if a suction filter of 100 micron is used. Model OC-20
Flow rate .93 GPM or 55 gallons per hour
Measures 4” Diameter by 6” Tall
Supplied Universal mounting plate is 3” wide x 4” long with a flange mount with two ½ holes and a 1” NPT female coupling for affixing the return line.

Rotor holding capacity: 10.5 oz of contamination.

The flow is the key. The centrifuge can only handle 55 GPH. You need a pump that will give you 90 PSI at 0.93 GPM / 55 GPH for ultimate performance. The minimum operating pressure is 35 PSI. The viscosity also enters into the equation, the thinner the better so heating the fuel to 140+ will also increase performance. Straight room temp vegetable oil may take some experimenting with.

At 90 PSI and above the rotor speed is more than 8000 rpm and the rotor will produce noise and vibrations at that speed. There is no harm caused by this noise.

A pump with more flow and less PSI will also be an issue. Too much flow will require a bypass. The excess flow that is not used by the centrifuge will cause the pump motor to over heat.

Maximum operating pressure 90 PSI.

OC-20 with universal mount and control valve



$299.00 each with Free Freight USA only
Pump and motor assembly is also available. Please call for pricing.

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Model OC-50
Flow rate: 1.8 GPM or 108 gallons per hour
Measures 5.4” Diameter by 9.8” Tall Supplied Universal mounting plate is 3” wide x 7” long with a flange mount with two ½ holes and a 1” NPT female coupling for affixing the return line.

Rotor holding capacity: 20 oz of contamination.


$499.00 each with Free Freight USA only
Pump and motor assembly is also available. Please call for pricing.

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Model OC-200
Flow rate: 5 GPM or 300 gallons per hour
Measures 9” Diameter by 13.5” Tall
Universal mounting plate to be quoted upon request.
Rotor holding capacity: 84 oz of contamination.



$1550.00 each with Free Freight USA only


Unoffical usage guide:

• Oil must be 140 to 180 Farenheit
• Oil must pass through a 100 micron filter before entering the centrifuge (no fish parts or potatoes)
• With 2 to 4 passes the oil will be engine ready
  • More passes are needed because of "viscus drag" the oil hangs onto the solids. The centrifugal force needs to be applied longer to get the dirt to move and stick to the rotor. Common problem is not enough heat. Hotter is better and more times is better.
• Expect to clean the rotor about once an hour. Cleaning frequency will depend on the level of contamination.
• The centrifuge is not equipped with a motor. It is operated by the pressure of the liquid.
• Any pressure under 90 PSI will result in sub par cleaning. You need to be between 90 and 100 PSI.