Hi,

I just bought a recent second hand CNC that came with a MT1090-100-ER32 HSD spindle.
It really makes a very loud noise and I wonder if someone uses a similar spindle
and if that noise level is normal or not.

It's difficult to describe noise, but it sounds like a bunch of screaming shopvacs.
It's by far the noisiest tool I have and people from other shops in the building have
been asking questions. it's annoying even with earmuffs.
I tested it without the coaxial fan, and it makes very little noise (quite similar to
a water cooled spindle), there are no abnormal bearing noises.
I also noticed the coaxial fan was quite wobbly, contacted HSD USA, and they
sent me a new one. However, it was just as wobbly, and just as noisy.

HSD offered to inspect it, but i have to ship it to the US and back (I'm in Canada),
so before I do that, I'd like to know what you think ...

Thanks