What is the MINIMUM blade width on a JWP-15CS 15 inch? - Woodworking Talk - Woodworkers Forum
 
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post #1 of 11 Old 05-17-2020, 11:38 AM Thread Starter
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What is the MINIMUM blade width on a JWP-15CS 15 inch?

What is the MINIMUM blade width on a Jet JWP-15CS 15 inch? I know out of the box they're 1". Manual says nothing about minimum width. I need to start paying attention when I send them off to be sharpened, I have some sets at 15/16, some close to 7/8, what I have in the cutter head now I didn't measure but they don't even reach the jack screws.
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post #2 of 11 Old 05-17-2020, 12:15 PM
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Call the factory techs .......

I wouldn't trust any answer you got online. The factory service techs should know this, because it's a critical safety issue. No time to take chances. JMHO.



The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
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post #3 of 11 Old 05-18-2020, 08:59 AM
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According to the manual (pg 12) , they are dual edge, after rotating, discard and replace.
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post #4 of 11 Old 05-18-2020, 10:13 AM
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Talking We aren't on the same page guys .....

Quote:
Originally Posted by tpcolson View Post
What is the MINIMUM blade width on a Jet JWP-15CS 15 inch? I know out of the box they're 1". Manual says nothing about minimum width. I need to start paying attention when I send them off to be sharpened, I have some sets at 15/16, some close to 7/8, what I have in the cutter head now I didn't measure but they don't even reach the jack screws.
Quote:
Originally Posted by gmercer_48083 View Post
According to the manual (pg 12) , they are dual edge, after rotating, discard and replace.
https://www.toolpartsdirect.com/jet-...od-planer.html

https://www.toolpartsdirect.com/wmh-...ife-set-3.html


At $185.00 I don't think these are the replaceable type. This looks like a stationary 3 Hp planer to me, not a bench top with replaceable blades.

https://www.amazon.com/POWERTEC-1280.../dp/B005NYX85W

The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)

Last edited by woodnthings; 05-18-2020 at 10:18 AM.
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post #5 of 11 Old 05-19-2020, 09:30 AM
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Quote:
Originally Posted by gmercer_48083 View Post
According to the manual (pg 12) , they are dual edge, after rotating, discard and replace.
This is NOT THE CORRECT MANUAL....PLEASE IGNORE THIS POST....Sorry.

Gary

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post #6 of 11 Old 05-19-2020, 11:36 AM Thread Starter
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So I just got https://www.amazon.com/POWERTEC-1280.../dp/B005NYX85W today. I have never seen a planer blade like this before? Looks like two pieces of steel? http://powertecproducts.com/128054-h...15ho-set-of-3/ sheds no light on this mystery either. Not sure I like the idea of a two piece blade in there. But a relook at AMazon shows the same picture I took so I got what I paid for. Is this blade safe?
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post #7 of 11 Old 05-19-2020, 01:28 PM
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not to worry .....

That blade is "probably" ....made from a small piece of hardenable steel forge welded to a larger piece of less expensive, softer metal to save costs.
I do find it interesting/confusing that the description doesn't mention this process, however. It's described as "HSS" not a composite or combination. see if any of the review mention it... and if there are any issues?

The Powertec phone number:
1-847-780-6120

The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)

Last edited by woodnthings; 05-19-2020 at 01:33 PM.
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post #8 of 11 Old 05-19-2020, 02:21 PM
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Quote:
Originally Posted by woodnthings View Post
That blade is "probably" ....made from a small piece of hardenable steel forge welded to a larger piece of less expensive, softer metal to save costs.
I do find it interesting/confusing that the description doesn't mention this process, however. It's described as "HSS" not a composite or combination. see if any of the review mention it... and if there are any issues?

The Powertec phone number:
1-847-780-6120
I hate to admit it, but I called Powertec. They were no help. I sent a PM to the OP with the details. Here is a summary of what the person at Powertec told me:

* We import them and sell them.
* We don't ask the manufacturer about how they make them.
* We don't know why they are made that way.
* There is no technical support person at Powertec who can answer the question.
* Of course they are safe. We have had no safety issues with them, and that's all we care about.

I note that the person at Powertec did not know about the issue. You can't see it in the photo on their website. Once they saw the photos on Amazon, they understood the point of my question, but that was no real help.

In the PM, I speculated the same as @woodnthings:

* They use a harder, more brittle steel for the edge to provide better durability (stay sharp longer) and maybe nick resistance.
* The less expensive steel for the body of the blade lowers manufacturing costs.
* The less expensive steel may be less likely to crack when you tighten it up in the holder. A speck might get sandwiched, or there might be a tiny alignment issue.
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post #9 of 11 Old 05-20-2020, 10:47 AM Thread Starter
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"We don't ask the manufacturer about how they make them."

I just bought my last PT blades! I'm sure they're safe, but, I'm not standing behind any tool in my shop when the manufacturer/seller says that.....
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post #10 of 11 Old 05-20-2020, 01:26 PM
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In fairness to Powertec, maybe I got the wrong person. The woman I spoke with was the first to answer the phone, and she was not inclined to redirect my call to someone else. She was polite and courteous the entire call, just not helpful. Perhaps she was a substitute while the usual person was on break, or maybe she was having a bad day.

'Just trying to give them the benefit of the doubt. :-(

Last edited by Tool Agnostic; 05-20-2020 at 01:33 PM.
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post #11 of 11 Old 05-20-2020, 03:37 PM
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Carbide tipped blades .....

The same process, forge welding or pressure welding is common in industrial applications. A similar process is diffusion welding:https://en.wikipedia.org/wiki/Diffusion_bonding





Carbide tipped blades shown above, have a similar welded joint in cross section and are perfectly safe. Cost savings and strength are reason for this process:

https://www.holbren.com/carbide-tipp...er-knife-sets/



The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
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