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School me on Grinder wheels

dgb84

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Hey All,

I bought a cheap chainsaw Grinder as I keep rocking chains while helping my dad stump all the trees we’ve felled at his place. The wheel I have is 4-1/4 inches x 1/8. It says the wheel size can do any chain, but it seems like it’s not getting the gullets very good on my 3/8 chain. The top plate looks good, but I have to back the tooth off the stop to hit the gullet with the wheel. Are these wheels pretty universal, or should I try to grab a different sized wheel?

Thanks in advance.

Dustin
 

mitchm1

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[emoji897]


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Philbert

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1. Cheap grinders come with cheap wheels. Like a cheap chain on a chainsaw. Better quality wheels will cut better than cheap wheels. Check out Oregon, Tecomec, or Molemab wheels (Bailey's) for full sized (and some mini-sized) grinders. Really cheap grinders (like Harbor Freight types) are just 'you get what you pay for'. https://www.arboristsite.com/community/threads/hf-chain-grinder-thread.268303/

2. Different sized (thickness) wheels for different pitch chains and tasks. Typically 1/8", 3/16", and 1/4" or 5/16" wheels are supplied with full sized grinders.
http://en.oregonproducts.com/pdfs/510A_Manual_English_Rev3.pdf

3. I sharpen the cutters, back off and do the gullets, then change wheels and do the depth gauges: at least 3 passes per chain.

4. Vitreous wheels need to be dressed frequently to constantly expose fresh abrasive. Otherwise, they tend to cut slow and burn cutters. I dress mine lightly about once per loop.

5. Different types of wheels (abrasive type, bond, density, etc.).
https://www.arboristsite.com/community/threads/resinoid-grinder-wheels.256733/

Philbert
 
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mitchm1

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I beat Phil so I was waiting patiently
All my stuff is Stihl but do like there black wheels over there pink wheels out there
1397820c14ba9faa210d0ab24a9ced68.jpg
a6eb2fadbdfd5fbc4bada279f97929ed.jpg

CBN will always be my favorite but they cost more than a cheap grinder but will pay for them selves after a 1,000 chains

And yes 1/8” wheel can do it all but you have to nibble at to keep the gullet clean
So a wider wheel in order for the OP


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Philbert

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Here are some examples of better quality wheels for smaller grinders, than those red/brown, fine grit ones sold with a lot of cheap ones. Have to check the ID carefully, because sometimes '7/8 inches' does not equal '7/8 inches' (more info in the HF thread above). Test fit any that you buy to see if they actually fit the arbor on your grinder.

https://www.baileysonline.com/molemab-aluminum-oxide-grinding-wheel-4-1-8-diameter-449.html

https://www.ebay.com/itm/Tecomec-OE...eoAAOSwc49Y8ToC:sc:USPSFirstClass!55105!US!-1

https://www.baileysonline.com/orego...wheel-4-1-8-x-1-8-or4125-18a-orf-412518a.html

And the dressing brick:

https://www.ebay.com/itm/Tecomec-OE...Y8AAOSwGrNZfgrY:sc:USPSFirstClass!55105!US!-1

https://www.baileysonline.com/molemab-silicon-carbide-dressing-brick-46450.html

Philbert
 

dgb84

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New 3/16 wheel came in and here’s my first go at it. This was a chain I rocked a few months back and had about given up on. It looks okay to me now. Looks like I could hit the gullet a little more so it would have more working corner. I know you shouldn't grind a dirty chain, but its pissing and pouring here and I didn't wanna talk to the shed to get muh cleanin' juice.

9B120E1C-1953-471A-A7EF-66DF3A2B6BB7.jpeg 1422BC8B-5FF1-4C19-BF06-2B7DDB5A55A5.jpeg DD5A4936-D543-4022-9101-693E55E21A50.jpeg
 
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dgb84

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Gullet looks pretty, but I can still see a small line of 'glint' (reflected light) along the top edge. Might be the lighting in the photo.

Philbert

It’s a really fine burr or wire edge. I can flick it off with my finger. It’s really hard to take these pictures with my phone. I don’t know how y’all can take them so well lol.
 

Philbert

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It’s really hard to take these pictures with my phone. I don’t know how y’all can take them so well
I usually clean my photos up with iPhoto software on my computer before posting. Crop. Highlight, etc. For photos of chains I especially like the 'Sharpen' control!

Philbert
 

Larry B

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I usually clean my photos up with iPhoto software on my computer before posting. Crop. Highlight, etc. For photos of chains I especially like the 'Sharpen' control!

Philbert

Is that like airbrushing the photos in that magazine with the rabbit photos?
 

Philbert

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Is that like airbrushing the photos in that magazine with the rabbit photos?
Just trying to improve clarity and contrast, not hide defects or enhance desirable attributes.

Philbert
 

Carhartt

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Are the CBN wheels any cooler in the grind than the grey Stihl? Or the slotted wheels that I remember seeing? If I remember they where slotted to move more air. Where they Borazon (I could be wrong) wheels? Where do I find some of these wheels to try?
Are the CBN type wheels hard to keep clean? Can you use any type of degreaser to clean them since you cant dress them?
 

mitchm1

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CBN wheels will still blue the cutter but nothing like the pink wheels
Grey Stihl wheel run as cool or a little cool tan CBN but have to shape every loop
I have the diamond wheel inc. brand and like them
Cleaning stick is supplied with a wheel and instructions on how to use it (while coasting to a stop) I found a sonic cleaner works the best !!!
Never tried the slotted ones but heard there no better


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Philbert

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I can 'burn' a cutter with a CBN wheel!

Some guys have posted that the slotted Dinasaw wheels run cooler, and may be a better quality wheel, but almost 3X the cost.

Aside from the dust, I am happy to run a good quality 'pink' (vitreous) wheel. I grind outside, so that takes care of that issue!

Philbert
 

Carhartt

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So sell me on a CBN wheel over the Stihl grey wheels.
I dont have a sonic cleaner so I'd be cleaning manually.
 

mitchm1

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You never have to shape a CBN only flip every 10-20 chains
No dust
Depending on how aggressive you sharpen life span 1-3 thousand chains
I still use grey wheels on severe rocked out chains
At 20* knock the tip or damaged point off then another pass at 30*

There great when someone brings you 20-40 chains to do

I did set my grinder up for stone wheels with vacuum to keep the dust down and still use it with the CBN and magnets to collect metal grindings


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