Denford Cyclone Lathe - Loud Buzzing noise

[jamesgates1000]

Hi all,

My Denford Cyclone Lathe has started making a loud buzzing noise. Opened up the cabinet but cant quite identify where it is coming from...'

Does anyone recognise the noise?



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• loud buzzing when parallel connected

[Chris D]

It seems as though you are turning something on and off in the video to make the noise, what is it that you are turning on and off?

Chris D

[thaisurplus]

james

sounds like a fan with a broken blade, could be a pump say hydraulic pump that ****-the-bed.

what is and isnt working?

machine can run? tool changes possible?

i am known as the telephone technician but any information from you will speed the solution.

lathes typically run hydraulics as soon as control IO gets power,

[jamesgates1000]

Sorry should have given some more information, I turn the machine on at the rear cabinet and some fans start up. then I press the green on button and the fanuc screen comes up. The noise starts when I press the green button again. Then stops when I press the emergency stop.

The machine has no pneumatic or Hydraulics, and aside from the noise is working fine, still tool changes and runs with no errors.

[thaisurplus]

james

i check on your machine and quick-read the manual. no hydraulics but tailstock is air operated

it is a motor making the noise
your machine has a few:
way lube automatic oiler
coolant pump
spindle motor could have a cooling fan added to it as many spindle motors need added cooling
tool changer motor

does your coolant motor work?
i am hearing a 1/3 hp to 1 hp motor making the racket , check for muffin fans that may be installed

unplug the coolant pump and re check

[jamesgates1000]

No tailstock in my machine so not that, I took all the panels off and think the noise is coming from the spindle motor, running the spindle doesn't affect the sound in any way though, Think I need to take the internal sliding panels off to have a closer look.

[jamesgates1000]

Found the culprit, it is this spindle cooling fan, no obstruction and it only makes the noise at high rpm. Are these serviceable or do i need to buy a new one?

[thaisurplus]

https://www.digikey.com/product-deta...R310-ND/256078

obsolete item but this page lists the specs for you to find replacement

dunno if Denford is still selling parts

it is a nice axial blower , could just put a box standard blower and cobble a duct if you cant get a drop in.

[jamesgates1000]

I got a replacement based on suggestion from electronics supplier RS in UK, had to modify mounting plate slightly but it is installed now and quiet as can be. Thanks for the help.