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Thread: Northfied 12" jointer

  1. #1

    Northfied 12" jointer

    I've been looking for a 12" jointer, particularly one made by Northfield. They apparently have a belt drive version and one direct drive. Is one preferred over the other. I would think the belt drive advantageous since it might be easier to change the motor. Any thoughts on this?
    Last edited by Steve Mathews; 10-25-2019 at 5:12 PM.

  2. #2
    Direct drive fans will tell you its because they are so smooth, yes they are. A motor rewind will cost more than a used motor for belt drive machine, but not much more than new motor.

    I like belt drive because you can speed them up a bit compared to 3600 DD machines.

    I would take either one though.

  3. #3
    Join Date
    Mar 2008
    Location
    Ridgecrest, CA
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    179
    So how do you speed a belt drive jointer up? And what is the benefit? I have one of these, but I've never used it.

  4. #4
    Join Date
    Mar 2018
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    Piercefield, NY
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    You change the speed on a belt drive by changing pulley size on the motor or the driven shaft.
    Zach

  5. #5
    Join Date
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    So Cal
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    Steve I reckon it’s worth the drive to Prescott to see first hand. And that’s a very decent price

    Good Luck
    Aj

  6. #6
    Join Date
    Mar 2008
    Location
    Ridgecrest, CA
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    Okay, I guess I should have figured that one out, was thinking electrically, not mechanically speeding it up. What is the benefit?

  7. #7
    More knife Mark's per inch.
    You can feed faster and still get excellent finish.

  8. #8
    Quote Originally Posted by Andrew Hughes View Post
    Steve I reckon it’s worth the drive to Prescott to see first hand. And that’s a very decent price

    Good Luck
    Seems I've made this mistake b4.

  9. #9
    Join Date
    Dec 2005
    Location
    West Lafayette, IN
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    6,530
    I’ve got an NF12 with a DD motor and it’s been great. It’s 3 phase and I use it with a VFD. In fact it was Miss August this year on the OWWM calendar.

  10. #10
    Join Date
    Jul 2013
    Location
    Flower mound, Tx
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    Quote Originally Posted by Steve Mathews View Post
    I've been looking for a 12" jointer, particularly one made by Northfield. They apparently have a belt drive version and one direct drive. Is one preferred over the other. I would think the belt drive advantageous since it might be easier to change the motor. Any thoughts on this?
    A stock Northfield 12” 3HP belt drive gives a cutterhead rpm of 4500 opposed to 3600 rpm on the stock 3HP DD.

    Curious what price are they asking? What condition?

    I searched pretty hard and long for my 16HD. I am still amazed at how much certain dealers are asking for Northfield jointers that look to be pretty trashed.

  11. #11
    Join Date
    Jul 2013
    Location
    Flower mound, Tx
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    514
    Quote Originally Posted by Matt Day View Post
    I’ve got an NF12 with a DD motor and it’s been great. It’s 3 phase and I use it with a VFD. In fact it was Miss August this year on the OWWM calendar.
    Matt, can you post a pic of your Miss August? Jointer that is.

  12. #12
    Join Date
    Jun 2008
    Location
    So Cal
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    3,765
    I was referring Steve to a Northfield on Cl in Prescott. Listed at 1500.00
    When was on the scout for a quest jointer.
    I spend more then a year looking and checking out different leads. I finally found a what I was looking for I’m glad I didn’t settle.
    Condition of the tables were the most important part for me.
    They need to be inspected in person with a machinist straight edge.
    I already did my time paid my tuition using jointers with worn warped tables.

    Good Luck
    Aj

  13. #13
    Join Date
    Feb 2011
    Location
    Central WI
    Posts
    5,666
    Condition and how flat the table are are more important than belt vs direct drive. A jointer is not a finish machine so cuts per inch is less important than long flat tables. Northfield originally spec'd their tables at .002-.004 across the entire 8' of length. Martin might do that but few others and no jointer under 10K new will be that tight in tolerance. Dave

  14. #14
    So how do you go about checking the jointer table for flatness? I would like to include this in my inspection on one in a few days.

  15. #15
    Join Date
    Jul 2013
    Location
    Flower mound, Tx
    Posts
    514
    I bought my NF 16HD over the phone in less than an hour after it was posted for sale on another website. My inspection was a “walk-around” via FaceTime. To this day, I have never checked the tables for flatness.
    8CE64E30-90C5-43EE-AD12-40FD1FCEA9A3.jpg

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