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Motor rebuilders? Motor replacement?

Deerhurst

Plastic
Joined
Jun 6, 2022
Friend of mine at work's husband got a little old European lathe. Its built like a little tank complete with tracer and onboard coolant. Its probably a 10x30 or similar. Its a little guy but massively heavy in a complete cast chassis.


Long story short they wired up their static phase converter wrong, incoming line to the floating phase, and popped the caps in it as well as said there was some smoke from the motor. The motor makes very little torque and can easily be stalled with a cutting tool as well as makes some bad noises like a stepper motor with a bad set of winds. Im guessing the motor is toast too. Gets quite hot with just a few minutes of unloaded running. Im having him ohm out the winds and see whats up.

Ive never seen a multi-speed motor that uses Y, delta and a //Y configuration for speeds (Im a noobie learning from the wizards here!). Are these types of motors readily available? Anyone with a good rep to rebuild it for him?

Motor face plate:

signal-2022-06-04-18-30-39-281.jpg
 

dalmatiangirl61

Diamond
Joined
Jan 31, 2011
Location
BFE Nevada/San Marcos Tx
Is the motor integral with the machine? I.E. is it "special", or just plain jane foot mount? Finding a small 3 speed replacement would most likely be difficult, I'm assuming it uses that instead of a back gear, so going with a plain common 3ph motor and vfd would be the next best solution. I'd be interested in seeing the lathe too, I've been wanting a small one with a taper attachment.
 

Deerhurst

Plastic
Joined
Jun 6, 2022
Rebuild is only temporary if 'the plan' is to f**k-it up AGAIN with a static "converter-not-really-they-are-not" kludge.

Walloon side of Belgian made. Or so they were at the time:


Show us the REST of where it has to FIT.. and someone may have a suggestion as to how to get useful power to the spindle.

A more common single-speed motor + VFD to support other speeds AND 1-P conversion to 3-P powering, for example.
I forgot about my post here!

I suggested a VFD but they already had the phase a matic.


I will see if I can get pics. Easier for them to send pics than me drive out there just for a photo or two.
 

Deerhurst

Plastic
Joined
Jun 6, 2022
Is the motor integral with the machine? I.E. is it "special", or just plain jane foot mount? Finding a small 3 speed replacement would most likely be difficult, I'm assuming it uses that instead of a back gear, so going with a plain common 3ph motor and vfd would be the next best solution. I'd be interested in seeing the lathe too, I've been wanting a small one with a taper attachment.
It is a foot mount. The stupid heavy door attached to a plate comes open and releases tension on the belt drive.

I'll see what I can do for overall pics too. It's a neat little lathe but fairly tired and dirty. They have been doing good cleaning it but it needs some more TLC.
 
Last edited:

Deerhurst

Plastic
Joined
Jun 6, 2022
Sorry this took a while but I finally got pics from them.

This is the little lathe we are trying to breathe life back into!

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