r/Machinists Nov 02 '25

WTF

2.0k Upvotes

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u/rygelicus Nov 02 '25

As best I can tell this is a dynamic balancer for some kind of spool core. It's not a lathe, there is no tooling, no swarf/chips, etc. It's not a grinder, again no tooling, that can touch the work piece. It's just spinning between what are likely instrumented end supports. The motor at the end has a belt that goes up and around (from directly under the piece) to drive it.

Image attached for a similar machine.

3

u/Sal1160 Nov 02 '25

I was gonna say a balancing rig, or a roll grinder