Great deals on new inverter motors for your lathe

[Bob Hallowell]

Guys,
I got a new catalog from www.factorymation.com (http://www.factorymation.com) and they have new 1.5hp inverter rated constant torque f class for $167 with a 2 year warrenty. Any of you want to make your lathe vs here's you opertunity.

Bob

http://www.factorymation.com/s.nl/it.A/id.56226/.f?category=77670

[Paul Engle]

Bob, how much is the drive for the mtr, is it 1 phase, 220v or ? I found them to have good prices on over stocks but the drives were spendy and none were 110v. They had 2 hp TEFC / 56 frame-220v with Tenco ( think it was Tenco) drives last year for $469 with free frt.

[Bob Hallowell]

Bob, how much is the drive for the mtr, is it 1 phase, 220v or ? I found them to have good prices on over stocks but the drives were spendy and none were 110v. They had 2 hp TEFC / 56 frame-220v with Tenco ( think it was Tenco) drives last year for $469 with free frt.

Paul I bought their drive 2 years ago and that's why I still get their catalog, this is the drive I own http://www.factorymation.com/s.nl/it.A/id.196/.f?category=32

2hp for $145 that makes a 1.5 hp motor and drive for alittle over $300. Not to bad.

Bob

[Wilbur Pan]

Bob,

How do you find the performance at lower speeds? My understanding is that if you get a sensorless vector VFD, the VFD will provide constant torque as the RPMs go down, whereas with the FM50, which isn't a sensorless vector VFD, you lose torque as you drop the RPMs.

Now this is all theory, and I don't know how this actually affects roughing out a big bowl blank at low speeds, which is why I'm asking.

[Bob Hallowell]

Wilbur,
I was told it has to do more with the motor for better torque at low speeds which I tend to believe in my experince. I have the drive I showed and got lucky and picked up a $2000 constant torque down to 5hz 1.5hp vector duty baldor motor for $50 used on the bay. I have it belted at 1100rpms and take it down to 100rpms and have never had a power issue.
I could be wrong but the best thing to do is call their tech support they are very knowledgable and helpful and they can prolly answer your questions.

Bob

[robert hainstock]

In my expierence, the alternating current motor, or syncronous motor speed in dependant on frequency of the applied voltage to determine speed given a constant input voltage. It should in theory have constant torque over the varying frequencys applied. There is always going to be a slippage factor, (friction). :)
Bob