Newbie China Spindle Cooling


Page 1 of 3 123 LastLast
Results 1 to 12 of 34

Thread: China Spindle Cooling

  1. #1
    Member Lilithet's Avatar
    Join Date
    Mar 2019
    Posts
    8
    Downloads
    0
    Uploads
    0

    Default China Spindle Cooling

    I bought an Air cooled 500W China spindle, And was wondering if anyone had any ideas on how to convert it to water cooling. Unfortunately I am not able to attach anything larger on my (mini) CNC, and the spindle runs so quietly with out the fan (which has extreme wobble and causes vibrations on my device) and smaller spindles don't come water cooled.I was thinking of getting a metal tube and two caps and sealing it with epoxy. I couldn't find any information about someone who already did this. Any suggestions would be welcome.

    Similar Threads:


  2. #2
    Member
    Join Date
    Sep 2005
    Location
    United States
    Posts
    1117
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    Quote Originally Posted by Lilithet View Post
    I bought an Air cooled 500W China spindle, And was wondering if anyone had any ideas on how to convert it to water cooling. Unfortunately I am not able to attach anything larger on my (mini) CNC, and the spindle runs so quietly with out the fan (which has extreme wobble and causes vibrations on my device) and smaller spindles don't come water cooled.I was thinking of getting a metal tube and two caps and sealing it with epoxy. I couldn't find any information about someone who already did this. Any suggestions would be welcome.
    I would send it back and get one that was built correctly.

    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router


  3. #3
    Member
    Join Date
    Oct 2009
    Location
    United States
    Posts
    282
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    Or replace the fan if it is too late for a return?



  4. #4
    Member Lilithet's Avatar
    Join Date
    Mar 2019
    Posts
    8
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    I would like to go fanless if at all possible, the spindle is so nice and quiet without the fan. If I had to I could always design and print a fan on a 3d printer as a last resort.



  5. #5
    Member
    Join Date
    Sep 2005
    Location
    United States
    Posts
    1117
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    Quote Originally Posted by Lilithet View Post
    I would like to go fanless if at all possible, the spindle is so nice and quiet without the fan. If I had to I could always design and print a fan on a 3d printer as a last resort.
    For less than $20 you can purchase an electric muffin fan like used on a computer PS, it can be 12 or 24 volts DC or 120 volts AC. With a 3D printed fan Blade you will still have the balance issue. I have a air cooled spindle and you can not hear it running.

    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router


  6. #6
    Member
    Join Date
    Oct 2009
    Location
    United States
    Posts
    282
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    Another option could be what we used to do
    back in the days with R/C model gas engines:
    Take a long soft brass tube and wrap it tightly
    around the body from top to bottom, flattening
    it a bit while wrapping and run the coolant
    through it. I have no idea if it would be
    sufficient though.

    That was a looong time ago.



  7. #7
    Member
    Join Date
    Jan 2005
    Location
    USA
    Posts
    9306
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    Quote Originally Posted by Lilithet View Post
    I bought an Air cooled 500W China spindle, And was wondering if anyone had any ideas on how to convert it to water cooling. Unfortunately I am not able to attach anything larger on my (mini) CNC, and the spindle runs so quietly with out the fan (which has extreme wobble and causes vibrations on my device) and smaller spindles don't come water cooled.I was thinking of getting a metal tube and two caps and sealing it with epoxy. I couldn't find any information about someone who already did this. Any suggestions would be welcome.
    Most of these spindles are just a DC motor with a Collet holder attached you may be able to rap it with copper tubing attaching it to the motor to get heat transfer will be the hardest part but could be done

    Mactec54


  8. #8
    Member he1957's Avatar
    Join Date
    Jun 2018
    Posts
    257
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    Electronics type heat-sink compound (messy) or heat-sink tape might work. Some type of sleeve or a metalised epoxy?

    Perhaps an inflatable ball bladder filled with coolant might work but mixing water or some other coolant in a breakable container on your machine might be a bad idea.

    How hot does the spindle get? Surely it was designed to function for purpose?

    FWIW: Better to get a liquid cooled spindle than try to modify one not designed for it.



  9. #9
    Member
    Join Date
    Sep 2005
    Location
    United States
    Posts
    1117
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    Mactec54 has always said those air cooled spindles when running slow do not move enough air to cool. I have my minimum on mine set at 9,000 Rpm. Maybe he is better off with that muffin fan.

    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router


  10. #10
    Member
    Join Date
    Oct 2009
    Location
    United States
    Posts
    282
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    Quote Originally Posted by wmgeorge View Post
    Mactec54 has always said those air cooled spindles when running slow do not move enough air to cool.
    I could think that the best way to improve that would be to run a separate fixed voltage cable and run the fan continuously full power.



  11. #11
    Member Lilithet's Avatar
    Join Date
    Mar 2019
    Posts
    8
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    I have a bunch of different fans from 5V to 24V, but I fear they may not move enough air to keep the spindle cool. I tried running it at 100% for 10 minutes with a 24V muffin fan on the side but it still got up to 60°c which as far as I know is about twice the maximum of what it should.



  12. #12
    Member
    Join Date
    Sep 2005
    Location
    United States
    Posts
    1117
    Downloads
    0
    Uploads
    0

    Default Re: China Spindle Cooling

    Quote Originally Posted by Lilithet View Post
    I have a bunch of different fans from 5V to 24V, but I fear they may not move enough air to keep the spindle cool. I tried running it at 100% for 10 minutes with a 24V muffin fan on the side but it still got up to 60°c which as far as I know is about twice the maximum of what it should.
    Any type of cooling fan needs to move air over the windings, except if its designed as a TEFC motor. If the existing fan blade runs to slow it needs to be removed to allow for more air flow.

    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router


Page 1 of 3 123 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

China Spindle Cooling

China Spindle Cooling