Author Topic: Pillar drill motor control  (Read 695 times)

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Offline cleanworkbenchTopic starter

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Pillar drill motor control
« on: August 24, 2019, 07:39:50 am »
I,m looking into the idea of changing out the original single phase motor on my pillar drill to something controllable in variable speed. What type of controllable motor should i be looking at for this application.

Thanks



 

Offline MosherIV

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Re: Pillar drill motor control
« Reply #1 on: August 24, 2019, 08:00:55 am »
Quote
I,m looking into the idea of changing out the original single phase motor on my pillar drill
Why? Is it broken?

Does the pillar drill have a set of different size pullies and belt inside?
http://pillardrillmachine.weebly.com/the-pillar-drill.html
The pullies and belt are there to allow you to change speed/torque.

I doubt you will be able to easily replace the single phase AC motor for a DC varible speed one.
I do not think anybody makes DC motors in that power range.
I am not awear of any single phase AC motor inverters, as far as I know you can only get 3 phase motor inverters.
 

Offline mzzj

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Re: Pillar drill motor control
« Reply #2 on: August 24, 2019, 08:32:28 am »
I,m looking into the idea of changing out the original single phase motor on my pillar drill to something controllable in variable speed. What type of controllable motor should i be looking at for this application.

Thanks

Depends a lot on your drill size but I replaced the orginal weakling and POS belt drive in my drill press with 1.5kW 1500rpm 3-phase AC motor and VFD.

Belt set to 1:2 speed reduction gives enough torque to drill 25mm holes or tap M16 to steel and max spindle speed of 2200rpm when VFD set to 150hz
 

Offline mikerj

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Re: Pillar drill motor control
« Reply #3 on: August 24, 2019, 11:07:54 am »
As mzzy says, the way forward for variable speed machine toos is a 3 phase motor and a variable frequency drive (VFD).  Small VFDs are now quite inexpensive and a suitable motor should be easy enough to find.
 


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