Well.... I don't have my tanks and plumbing set up yet and had to try the cf out on something. It worked great empty, but it's just not the same. Could use some collected oil, but kinda messy just for fun. The goldfish were tempting, but just not right. (yeah, my kids were there) I finally decided on some water with chocolate milk powder in it. WOW ... How cool is THAT. Got almost all the powder out at a rather fast flow rate, and my kids said they could hardly even taste the chocolate.
HA..HA..HA
Can't wait to use it on some oil. Thanks for your work on this project Leon.

Jack

Thats Awesome Jack,

Did you get any pictures?

Also, were you running 5000rpm or 3450rpm?

Sorry Leon, no pics. The excitement was too much ! I did get my 3 ph drive today though and I'm sure the fate of some type of powder is soon to be tested. : ) Unless the kids are gone, then there is always the gold fish. (Laugh of Snidley Whiplash).
It was at 3450 rpm. Very smooth at speed.

Jack

Hey Leon, Any date on the heat exchanger? What type of bushings or dampeners have you looked at using?
Thanks

Leon, Is there an rpm rating for the 3 ph motor. I know it is 3450 on the label, but how fast can you go and the bearings still be ok?
I've cranked mine up a notch and everything sounds ok, the bearing end housing is barely even warm. Just curious about the safe bearing speed.

Thanks
Jack

Leon,

Lars here from Absolute Centrifuge, I like the idea of using an inverter with a 3-Phase motor to increase the amount of RPM's, but you are promoting the use of an inverter with a non-inverter duty motor and exceeding the manufacturer's RPM limitation (=3,600RPM's) by 140%. It explicitly states not to do this on the back of the information booklet that comes with ever motor.


www.absolutecentrifuge.com/pdf/ac_dc_mot...nce_instructions.pdf

This practice will undoubtedly lead to early motor failure as well as voiding the 18 month manufacturer's warranty. I know you offer a 1 year warranty on the motors but they are sure to fail shortly after this period due to the motor components (bearings & insulation) not being able to handle this extreme prolonged use at 5,000RPM's. The motors are made to last 7-12 years if the manufacturers guidelines are followed. Is the consumer's benefit really worth the cost of annual motor replacement?