All models share a common centrifuge body and rotor assembly. The rotor spins faster in the higher-G models, so the motor and drive system are upgraded to match: the 2000 uses a DC motor for application where AC power may not be available and also a 120v AC motor Option, the 2400 uses a 1 hp motor, and the 3000 uses a 1.5 hp motor. The 10,000G uses a 3ph 1.5 hp motor along with a VFD to spin the bowl in excess of 9,000rpm to tackle the toughest to filter fluids.

Our single phase motors can be wired for 120 or 240 volts AC, but it's recommended to use 240v whenever possible. Motors start better on high voltage, and starting current can be cut in half at 240V — compared to 120v, allowing smaller wiring and breakers. Exact starting and running currents are listed in the Technical Information Section

Feed rate depends on the oil's initial contamination, its viscosity, and the density difference between the materials being separated. Typical feed rates run 10 to 75 gallons per hour, depending on the centrifuge and conditions. These system are intended to be single pass filtration so if you are reading that you have to run it through multiple times, you don't have a US-FMX centrifuge!

Find the document about recommended flow rates in our technical information section.

The Basic Controller controls the drain cycles (default 1x per hour) allowing a hands off operation as well as extending the the total volume between bowl cleaning (Pulling the lid off and scraping cake/sludge out) up to 4x. Before the contamination can become hard cake the system cycles down to drain the sludge before it gets to that point while it still flowable.

The Deluxe Controller does everything the Basic Controller does but in addtion the total run time limit can be set so you can set ti and forget it.

Both controllers include an 1/2npt female x 1/2npt female ported electronic ball valve that controls the flow to the centrifuge automatically. 

*Note: a customer supplied ball valve is required at the input of the centrifuge to control the flow rate.

Expect roughly 600 to 1,000 gallons per day depending on the model. Biodiesel, being thin, can be processed at 900 to 1,200 gallons per 24-hour day.

Lower-viscosity liquids clean much faster, since contaminants must travel through the liquid to the rotor wall. Think of a rock dropping quickly through water but slowly through molasses — thick liquids slow separation down.

Heat the oil to 120–160°F, or blend it with a lower-viscosity solvent. Some oils tolerate heating even higher, close to the gassing point.

As the centrifuge runs, contaminants concentrate into sludge, with hard particles depositing on the bowl. Stopping periodically lets concentrated sludge drain from the sludge port — a typical cycle runs 1 hour on, 4 minutes off to drain. Hard deposits can be removed by scraping the bowl with a wood paddle.

No. Hard particles scrape off easily with a small wood paddle cut from ¼" plywood. The rotor itself lifts out in about 30 seconds — just loosen the spindle lock and motor mount slightly, then pull straight up.

Yes. Centrifuges separate materials by density, heaviest to the outside of the bowl. Dirt goes out first, followed by a layer of water, with cleaned oil on top — which spills over the bowl and exits through the cleaned oil port. Like the saying goes, Oil and Water.. the US-FMX makes quick work of it.

Yes, with excellent results. Raw oil is typically spun first to remove dirt, water, and fat, then the processed biodiesel is spun again to remove water and glycerin or spin it slower and clean it all in one pass.

Yes — it performs excellently at removing glycerin.

Yes, and the more useful question is what percentage gets removed. Residence time matters a lot: at typical feed rates, liquid stays in the Filtermaxx® rotor 30 seconds to 4 minutes, versus roughly 2 seconds in spinner-type centrifuges. One customer noted their oil came out cleaner after 10 minutes than their spinner's oil did after 3 days of running.