Sharpening stump grinder teeth

A. Hello John,

I've been removing Trees and stumps for over 20 years. I have yet to find a better way to sharpen carbide teeth than how I've been doing it. The simple way is to use a grinder with two different wheels on it, at two slightly different angles on the front resting plate. Use the first wheel made of carborundum to grind the shank of the tooth away from the bit at a 120 degree angle until the area being ground comes in contact with the carbide, then stop. Don't overheat it, keep dipping it into water. Then use an Industrial Green (diamond impregnated) wheel at a 95 degree angle to the bit so the shank stays clear of the stump and all that will touch the wood will be the bit. You may have to repeat this several times to accomplish a good sharp tool. Try not to let the green wheel come in contact with the shank of the tooth. The soft metal eats it up. And as they can cost a considerable amount of money, it pays to be as careful as you can. However, I find that by doing it the way I have just explained, if I replace the teeth before they get too worn, I can sharpen them as many as 3 times before they're no good any more. This method has saved me a small fortune over the years and still is.

Although this can take some time to sharpen a full set of teeth, I try to keep enough ready to change at least the pairs that protrude from the cutting wheel the furthest at least twice a day. Then I use bad weather days as a time to sharpen more. Remember to wear safety glasses and even more important a GOOD filter for breathing as the dust from this operation is lethal........

Good luck, hope I was of help,

A. I have been grinding stumps since 1976 have looked around for YEARS for a handheld tooth dressing device - I use a bench grinder with a greenwheel and a normal metal wheel -- rest it on my knees and sit on a stool behind the machine and dress the teeth in place- obviously not the safest way to do it but I have never been injured and it saves about an hour vs removing all the teeth. The grinding wheel for the carbide is often called a greenwheel. If someone knows of a handheld sharpening device that will dress the carbide ends of the teeth please let me know.

A. [Company name deleted by editor -- apologies, see Ed. note] makes a machine just for sharpening stump Grinder teeth. It has a special form diamond wheel for grinding the bit and the carbide to the original shape. It is a little expensive but it will sharpen thousands of teeth with only occasional washing to clean the sap, etc., that builds up in the wheel. You do have to take the teeth out of the stump grinder to sharpen them.

----
Ed. note: Predictably, as soon as commercial interests are involved, trouble starts. Another reader (possibly even a competitor posing as a dissatisfied user) publicly trashed this product and company that Ken suggested. We can't post public trashings, which then makes it unbalanced to leave a recommendation on line either, so we had to remove the company name. Sorry. No testimonials please!
We welcome advice on techniques & practices, but we don't like to post recommendations of particular products or sources. If a seller feels they have a commercial solution, they are welcome to advertise anywhere, including here. Apologies.

A. Try border city tool, can be found and ordered online. I just ordered a set of standard rayco teeth. $ 2.47 EA.

----
Ed. note: Apologies, readers, but because we had to remove the recommendation for another brand of die grinder as we previously mentioned, now it's not fair to publicly recommend just their competitor :-( Please try your best to offer techniques and methods but not commercial suggestions. This nonsense is just what happens when money is involved. Thanks!

A. If you can't find teeth consider converting to Green Teeth

A. We sharpen all kinds of stump grinding teeth, For the last 10 yrs. THANKS! RAY

A. Hi
I am doing stump grinding in Norway. I have rocky soils and clay. When I only used a 25 hp machine I used to sharpen the teeth. Now I have a big machine with super teeth and I find I have to grind the teeth dull before putting them on, If not the carbide tip will be thrown off immediately. Bought my first Rayco RG 50 five years ago.

A. I repair and replace my own carbide teeth.
Praxis Illinois Inc. in DeKalb, IL sells stump grinder carbide teeth and silver solder.

A. I have been using Greenteeth since they came out on the market and they are great and I resharpen them myself. They prove to be very cost effective and long lasting.

A. To sharpen teeth I don't take them off my wheel. I use a hand drill with an arbor that holds a green wheel (about 6-8 inches dia.) I can sharpen right on the wheel. Like any cutting edge, I sharpen at an angle, taking the round out, and making sure that the cutting edge protrudes. It works fine, and I can go around my small stump grinder in about an hour, longer on the big stump grinder. I save all the time of removing the teeth, since we all have had the fight of removal/breakage/stripping of the bolts. The wheels have cost me, in the past, about 30 bucks each. they DO get used up on the soft metal part, but I can get a lot of sharpening out of them before the wheel is used up.

A. You can find a company selling three different lengths for the shaver including 2 7/8" on eBay .

A. If you're having problems re-sharpening stump grinding teeth take a look at this website: www.chipperblades.co.uk

A. I found a place that sells the carbide tips, solder and the flux, it is on the web it's stumpgrinderteeth.com.

A. www.sharptool.com for stump cutters.

A. To Raymond in Michigan looking for someone to retip your super teeth. I've used Discount Stump Cutters out of Lincoln, MI for the past 10 years.

A. Syntech Abrasives in Charlotte NC that makes diamond grinding wheels for sharpening the stump grinding teeth.

----
Ed. note-- Readers: If you wish to "softly" name additional companies, it's probably okay. But please omit testimonials and "I am not affiliated with" :-)
A testimonial from a stranger is worthless anyway, but in this case it quickly led to a race to the bottom where each vendor posted ever more extravagant prose about their brand. In one case they posted with an "I am not affiliated with", then a fictitious name and town, posing as a satisfied customer -- but their IP address was the same as the vendor's website :-)
We've wasted a huge amount of time revising and deleting long-winded advertising copy from this page, knocks of other brands, etc. Thanks for your understanding!

A. Look up New River Equipment and order you a wheel from them. Your teeth will only cost you 9.00 each. I use a 4012 with Sanvik 2007 model. I have to pay 13.00 each.

A. I sharpen all types of stump grinder teeth fast. I use a surface grinder; it's very fast --
www.moodytreeservice.com