It is a very complex die filer as said. I have 3,but nothing like that! Mine are bench models,though one of mine is the very beautifully made Duplex Die Filer.
They all do run way too fast. That destroys the files too quickly. I put a variable speed motor on 2 of mine and it is SOOOOOOO much better to use. any,MUCH easier on the expensive,hard to find die filer files.
Yours looks like it might have a 3 phase motor on it,which makes it easy fot you to attach a VFD to it ti dial in the speed you want to oscillate the files.