Denford Cyclone, Loud buzzing Noise

[m_c]

Searching the model, turns up the original on RS - http://uk.rs-online.com/web/p/axial-fans/2584718/ but it's discontinued, and they list this - http://uk.rs-online.com/web/p/axial-fans/6196860/ as a replacement.

Might be best to double check measurements though.

[jamesgates1000]

I bought the replacement that RS suggested, slight mismatch on the PCD so I opened up the holes on the metal ring that interfaces the fan and spindle motor, wired it up now no annoying loud noise. Thanks for helping me diagnose this problem.

[john swift]

a great result