Quick change knives, helical and quality

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Forum topic by Heirloom posted 02-02-2018 05:01 AM 551 views 0 times favorited 5 replies Add to Favorites Watch
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11 posts in 1616 days

02-02-2018 05:01 AM

Topic tags/keywords: stationary planer straight knife quick change knives

I have a small wooden window factory and have been purchasing my poplar stock from a saw mill with a double sided helical planer. They let me cut my wood to length then joint/plane it for flatter boards. However, even when the Extrema planer is tuned in with fresh carbide the wood has “micro voids” and needs sanded or finished again. After much experimentation I’ve found my little Dewalt 735 cleans the surface nicely, with no further attention needed before priming/staining. BUT, it’s a hobbyist tool and the motor overloads during long runs. I need a stationary planer that gives the same finish as the Dewalt but is much more rugged. Also, I LOVE the easy with which I can change the blades in the Dewalt.

So, since I can’t get the Dewalt 735 with 7.5hp 3ph I need to find the next best thing.

I’m looking for a stationary planer with a) straight, quick change blades b) a smooth finish c) plenty of power.

Is the Jet JWP-15DX 15” 3-hp Planer the only one on the market with quick change knives like the bench-tops?

Any other suggestions?

Can ANY helical give the same quality cut as a a good straight knife planer?



5 replies so far

View msinc's profile


567 posts in 1306 days

#1 posted 02-02-2018 05:09 AM

I also currently have a 735 and I agree, it does one seriously fantastic job of making wood smooth. That said, I always sand mine before I apply the finish. Given the rave reviews of the Byrd Shelix helical cutter heads I doubt those leave voids. I am fixing to upgrade to a bigger more heavy duty planer very soon, but not positive yet which one. Based on what I have read and heard it will probably be one with a Shelix head. They make the Shelix for the 735, but it costs as much as the planer and you are correct, it really isn’t a heavy duty machine.

View cabmaker's profile


1745 posts in 3612 days

#2 posted 02-02-2018 12:54 PM

Your going to really limit yourself by looking for quick change only planers

With proper jigs knife changing is very easy

Of coarse the planer will have a little to do with that by its design

Its been my experience that the larger the machine,,,,,the easier it is,,,,,( there is reasoning behind this statement)

View Aj2's profile


3175 posts in 2601 days

#3 posted 02-02-2018 02:44 PM

I have not seen any HH give as nice if finish as a straight knifes. I have noticed the same thing on soft woods.And sometime go back to my jointer and take a very lite pass. I’m anti sanding.

Does your planer head look like this?

-- Aj

View Loren's profile


10477 posts in 4451 days

#4 posted 02-02-2018 03:52 PM sells a retrofit system
that converts standard cutter heads to disposable
insert knives. I assume they work well and
change out quickly. I haven’t looked at the

I’ve used a Tersa head planer and I now have
one with a Leitz Wigo head. The Tersa knives are
cheaper, probably because there are so many
Tersa heads out there. With this style of knife
if the knives get nicked one can easily be shifted
sideways a little so a line doesn’t show on the

Felder has a proprietary disposable straight knife

View waho6o9's profile


8917 posts in 3380 days

#5 posted 02-02-2018 04:00 PM

William Ng has a great video on sharpening knives for a smooth finish.

It doesn’t really answer your concerns but it’s time well spent and falls into the “Any other suggestions?”

May you have continued success going forward.

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