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How to Sharpen Chipper Blades
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How to Sharpen Chipper Blades

Views: 60     Author: Site Editor     Publish Time: 2020-06-09      Origin: Site

If you decide to sharpen your own wood chipper blades, you can use a wet grinder, which will work for a great many other tools you may already own as well, saving you money on professional services in other areas as well. Before you use the wet grinder, though, you need to prep the blades, using a chisel or knife or similar device such as a good scraper or a putty knife (that has a razor blade) for effort. You’ll have to take the pitch off on all sides. Once this is done, you can move to the wet grinder. Always check the specs on your particular China wood chipper prior to doing something like this, as the settings you use may be different for a different brand or type of machine. But generally, the settings you use will be similar to what’s given here, as long as you aren’t using the unusual equipment.

Don’t expect to remove all chips in the blade. This is something that takes professional training or years of amateur practice. Instead, focus on the sharpness of the blades. They will shine all the way across and have no new levels, and you’ll need to be extremely careful at this point to avoid cutting yourself.

How often you sharpen your blades depends on how heavily you use them. As a general rule, you should check the sharpness of your wood chipper blades at least every 10 hours to see if they need to be sharpened, and it is typically beneficial not to run them for more than 20 hours without a pass over the wet grinder. Depending on your level of expertise, you may be able to sharpen a single set of blades in a few minutes, or it could take about an hour. The time spent isn’t important, as long as you do it safely.

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Sharpen Often

Sharpening China chipper shredder blades often can extend the life of the blades and the chipper machine. Sharp craftsman chipper blades require less power from the machine. If a wood chipper blade becomes too dull, much of the blade itself will have to be removed during the intensive sharpening process. This type of occasional, intensive sharpening will greatly diminish the life of the chipper blades, so short bursts of sharpening maintenance when needed are best. After 6 to 8 hours of use is usually a good time to sharpen most wood chipper blades. You should also be able to tell if blades need sharpening by the way they are cutting and the size materials they put out of the chipper machine. Chunky pieces instead of chipped pieces will indicate a need for blade sharpening. Many chipper machines will slow down or stop altogether when blade sharpening is necessary.

Use Proper Tools

It is important to use the proper tools when sharpening chipper blades because the wrong tools can permanently damage your China chipper shredder blades. A typical grinder or grinding belt is a poor choice for sharpening wood chipper blades since the blades are made of high-carbon steel. These types of sharpening materials can cause the chipper blades to overheat, damaging the blades and diminishing their overall life. A professional grinder can be a good choice for sharpening, though it is still important to pause occasionally, making sure the chipper blades are not getting too hot. Another choice is hand sharpening with a wet wheel. In this case, diamond whetstone will probably get the job of sharpening done the fastest.

Sharpen Entire Sets

Sharpen all the craftsman chipper blades at the same time, even if only one appears to be dull. This practice will keep all of the blades balanced with each other. Be sure the wood chipper blades match each other and come from the same set so they maintain the same distance and balance, and maximize chipping efforts. Before returning the chipper shredder blades to the machine, you may want to use a wire brush to clean the area where they attach. This will also maintain balance and efficiency to make sure they are the most effective.

Do not Over-Sharpen

Take care not to sharpen the wood chipper blades too much, since this practice can cause the blades to break. Sharpening past an inch will likely cause problems for the chipper blades. If you are unsure about how much sharpening should occur for maximum benefits, you may want to seek the advice of a professional.


With the proper tools and know-how, the ability to sharpen craftsman chipper blades will save time and money and keep your chipper machine running at maximum efficiency. As the top 10 wood chipper blades manufacturer and supplier in China, NJJF provides professional chipper shredder blades information and high-quality chipper blades for sale. If you have any needs, please contact us!

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