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Motor for Delta DJ20 Jointer

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Forum topic by u4ic posted 12-04-2020 12:34 AM 306 views 0 times favorited 4 replies Add to Favorites Watch
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u4ic

7 posts in 2596 days


12-04-2020 12:34 AM

This is my second post on a Delta DJ20 Jointer that I want to buy. My first post was how to disassemble it for moving. The input I got from the forum convinced me to not disassemble the bed. I was about to buy the Jointer when I discovered it has a 3 phase motor. After doing some reading I found out there are converters available to switch one phase into three phase. Problem is loss of hp and excessive wear on the motor. I’m still considering the Jointer and changing the motor to one that is single phase, 110/220 volt. I saw a motor on eBay that is 1-1/2 hp, 110/220, tefc (totally enclosed fan cooled) and 56 mounting.. The price is $160.
Any advice would be appreciated.


4 replies so far

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MrUnix

8361 posts in 3175 days


#1 posted 12-04-2020 12:50 AM

I was about to buy the Jointer when I discovered it has a 3 phase motor. After doing some reading I found out there are converters available to switch one phase into three phase. Problem is loss of hp and excessive wear on the motor.
- u4ic

Only if you go with a static converter. Get a VFD and you will run full HP and will be able to do other tricks not possible with just a straight 3 phase motor like soft start, controlled braking, over-torque, constant speed control, etc…. And these days, VFD’s are about the same price or even cheaper than static converters, and you can get one for right around what you are looking at paying for that single phase motor.. Plus, the three phase motor doesn’t have any additional crap to go bad other than bearings – no capacitors, start windings, centrifugual switches, etc… they are basically bullet proof and hard as hell to kill.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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Aj2

3599 posts in 2774 days


#2 posted 12-04-2020 01:28 AM

I agree with Mr Unix.

-- Aj

View u4ic's profile

u4ic

7 posts in 2596 days


#3 posted 12-04-2020 05:22 AM

I’m not familiar with VFDs. It would only be needed for the jointer. Would it cost more than a single phase motor ($160)?

View John Jardin's profile

John Jardin

90 posts in 616 days


#4 posted 12-04-2020 12:16 PM

My vote would be to go with a new 1hp single phase motor and wired to 220 volt if you can.
I agree with Brad that 3 phase motors are work horses, but not needed for a home work shop.
Keep it simple and get a new motor.

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