Otis Singleton
Electric chainsaw sharpeners are a convenient way to sharpen your chainsaw blades without the tedious process of manual filing. They are easy to set up and use, accommodating various chain types and sizes. With adjustable chain guides and angle adjustment systems, you can ensure the correct sharpening angle and depth for each tooth. This makes it a versatile tool for those with electric or petrol chainsaws, saving you the cost of replacing your chains or sending them away for sharpening.
Characteristics and Values of an Electric Chainsaw Sharpener
| Characteristics | Values |
|---|---|
| Ease of setup and use | Easy to set up and use with a simple chain guide and angle adjustment system |
| Sharpening angle and depth | Adjustable grinding angle to accommodate various sharpening angles and depths for different tooth sizes |
| Compatibility | Suitable for electric and petrol chainsaws of various sizes |
| Chain guide | Adjustable with an angle gauge |
| Mounting | Bench mounting with bolt holes |
| Stone size | Designed for 3/8 inch pitch chains, including regular and low-profile types |
| Motor | 85-watt motor (230V / 50Hz) |
| Grinding wheel | 110 x 3.2mm size, with replacement wheels available |
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What You'll Learn
Understanding the chainsaw's grinding wheel
There are various types and sizes of grinding wheels available in the market, each designed to fit specific chainsaw models and serve particular purposes. For example, the Foley-Belsaw grinding wheels are designed for the Foley-Belsaw model sharpeners, with specific dimensions to match the sharpener's requirements. The Tecomec grinding wheels, on the other hand, are known for their compatibility with multiple chainsaw brands, including Foley-Belsaw, Jolly, Oregon, and EFCO.
When selecting a grinding wheel, it is crucial to consider the size and type of chainsaw chain you intend to sharpen. The wheel's diameter and thickness must correspond to the size of the chain's teeth for effective sharpening. For instance, a 4" x 1/8" grinding wheel is suitable for sharpening chains with smaller teeth, while larger wheels, such as 5" or 5-3/4" wheels, are designed for bigger chainsaw chains.
Additionally, the material of the grinding wheel plays a vital role in its performance. Vitrified grinding wheels, like the Oregon product line, are renowned for their ability to resist burning the cutters and leaving a precision finish. This feature ensures that the chainsaw chain remains sharp and durable after each sharpening session. Other materials, such as resin-bonded steel, also offer their unique benefits, providing a balance between performance and cost-effectiveness.
Understanding the proper use and maintenance of the grinding wheel is also essential. Users should be cautious when adjusting the grinder to avoid over-sharpening or damaging the chainsaw teeth. Regular maintenance of the grinding wheel, including cleaning and checking for wear and tear, ensures optimal performance and prolongs its lifespan. By following the manufacturer's instructions and safety guidelines, users can effectively utilize the grinding wheel to maintain their chainsaws in top condition.
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Adjusting the grinding angle
Firstly, refer to your chainsaw owner's manual or the chain pack to identify the specific sharpening angle specifications for your chainsaw. This information is essential as it ensures that you set up the grinder head angle correctly. The manual will provide the recommended top-plate cutting angle, which should be followed to achieve the proper grinder head angle.
Next, check if your chainsaw has witness marks, which can be used as a reference for adjusting the grinding angle. These marks indicate the original angles set by the manufacturer, and by seeking them out, you can more accurately replicate those angles.
Now, let's discuss the specific angles involved in the grinding process. The side angle of the grinder is typically set within a range of 55° to 60°. Additionally, a tooth tilt angle of 10° is applied in relation to the top of the tooth. However, it's important to note that not every tooth has a tilt, and some teeth are square with the bar.
For modern bucking chains, the chain vise angle is usually set at 30° (left and right). This angle works in conjunction with the grinder head angle to ensure an effective sharpening process. The top plate filing angle should be parallel to the chainsaw chain centreline, maintaining a consistent relationship between the grinder and the chain.
Lastly, when using an electric sharpener, remember to use a quick tapping motion during the sharpening process. This technique helps to minimise overheating of the ground surface, preventing any potential damage to the chain or the sharpener.
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Using the chain guide
The chain guide is an important part of the chainsaw sharpening process. It holds the file at the proper depth in the tooth and helps you move the file at the correct angle. Most file guides have markings for several angles. Following the 30-degree marks on the guide will work for most chainsaws. If you’re not sure about the proper angle to sharpen your saw, check the chain.
To use the chain guide, first, clean the chain thoroughly. It is best to use a resin solvent or a special chainsaw cleaner. Adhesive oil and tree resin must be removed completely. Next, check whether the wear mark on the depth limiter or plate edge has been reached. If there is still enough material to sharpen, you can retighten the chain, activate the chain brake and fix the chain guide in the vice. At this point, put on gloves to avoid injuries from the teeth of the saw chain.
Mark the shortest cutting tooth with a pencil as a guide tooth and start sharpening here. This way, you will know exactly when you have worked all the teeth in each direction. After you have sharpened all the cutting teeth, the corresponding depth limiters must be adjusted. As the tooth plate continuously falls backwards and becomes shorter and shorter as it is sharpened, the distance between the upper edge of the plate and the upper edge of the limiter also changes. However, this so-called depth limiter distance must be the same for all cutting elements and must be the right size. If the distance is too high, the chain will not run smoothly and will vibrate a lot. If the distance is too small, the cutting performance will decrease. You can check the distance using a file gauge.
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Setting the correct sharpening angle
Firstly, it is important to select the appropriate sharpening tool. Electric chainsaw sharpeners are a popular choice for their speed and efficiency. These sharpeners typically feature a thin, abrasive wheel, around 4" to 5" in diameter, which spins to sharpen the chain. This method is much quicker than manual sharpening and can effectively change the geometry of the edge. It is important to note that electric sharpeners can overheat, causing the metal to soften and lose its sharpness. Therefore, it is recommended to sharpen a little at a time and allow the teeth to cool between applications.
Another option is a bench-mounted sharpener, which can provide consistent results and save time and energy. This type of sharpener uses a 4-inch grinding wheel that can tilt up to 35 degrees left and right to accommodate common saw-chain cutting angles. To use this sharpener, the saw chain is removed from the tool and placed into the sharpener's vise. The grinder is then adjusted to the proper angle, and the trigger is squeezed while pulling down on the upper handle until the wheel contacts the cutting tooth.
When using a file to sharpen the chainsaw, it is essential to maintain the correct angle for effective sharpening. A file guide can be extremely helpful in this process as it holds the file at the proper depth and angle. Most file guides have markings for various angles, and following the 30-degree mark is suitable for most chainsaws. Additionally, each tooth on the chain typically has a small line indicating the best angle for sharpening. It is also important to note that the angle can vary depending on the type of wood being cut, with softwoods requiring angles closer to 25 degrees and hardwoods requiring angles closer to 35 degrees.
To ensure the correct sharpening angle, it is also recommended to clean the chain thoroughly before beginning the sharpening process. This includes removing any adhesive oil and tree resin completely. Additionally, it is important to check the wear mark on the depth limiter or plate edge. If this mark has been reached, it may be more advisable to purchase a new saw chain rather than attempting to sharpen it further.
By following these guidelines and selecting the appropriate sharpening tool, you can effectively set the correct sharpening angle for your electric chainsaw.
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Choosing the right sharpening stone
When it comes to choosing the right sharpening stone for your electric chainsaw sharpener, there are several important factors to consider. Firstly, you need to ensure that the sharpening stone is compatible with the size of your chainsaw chain. Chainsaw chains come in various sizes, so it's crucial to select a sharpening stone that can accommodate the specific size of your chain. This compatibility ensures that the sharpening stone makes proper contact with the cutting links of the chain, allowing for effective sharpening.
To determine the correct size, you should find the pitch of your chain. This information is often printed on the saw arm of the chainsaw. Once you know the pitch, you can choose a sharpening stone with the corresponding size. It's worth noting that some electric sharpeners come with multiple bits or files, allowing you to match the bit with the chain size. Additionally, kits are available that offer the three main file sizes: 5/32-inch, 3/16-inch, and 7/32-inch, providing versatility for different chain sizes.
Another factor to consider is the level of mechanization you prefer. Basic electric sharpeners require manual unlocking and advancement of the chain links, while fully automatic sharpeners can advance and sharpen the chain automatically after you set the adjustments to match your specific chain. If precision is a priority, newer models with digital technology can be a worthwhile investment. These digital sharpeners allow you to input the pitch of the cutting links and the desired angle of the cuts, ensuring a precise sharpening experience.
The speed of the sharpening stone, measured in RPM (rotations per minute), is also worth considering. Higher RPMs can lead to accidental damage to the cutting links if the grinding angles are not adjusted precisely. While higher speeds do not pose a danger to the user, they may require more careful handling to avoid damaging the chainsaw. Therefore, it's important to strike a balance between speed and control when selecting a sharpening stone for your electric chainsaw sharpener.
Finally, the mounting option for your electric chainsaw sharpener is an important practical consideration. Chainsaw tool sharpeners can be mounted on a bench or a wall, depending on the available space in your workspace. If you have a large workbench, bench mounting can be a convenient choice. On the other hand, if space is limited, wall mounting can help save valuable workbench real estate. By taking into account these factors, you can make an informed decision when choosing the right sharpening stone for your electric chainsaw sharpener.
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Frequently asked questions
An electric chainsaw sharpener is a tool that can be used to sharpen chainsaw blades quickly and efficiently, removing the need to replace your chainsaw chain or send it away for sharpening.
The exact setup will depend on the model of your sharpener, but most electric chainsaw sharpeners are easy to set up and use. They feature a simple chain guide and angle adjustment system that allows you to set the correct sharpening angle and depth for each tooth. You can also adjust the grinding angle to accommodate different sharpening angles for almost all chain types.
Electric chainsaw sharpeners are designed for use with 3/8 inch pitch chains, which are the most common chain size. They can be used with both regular and low-profile 3/8 inch pitch chains. Low-profile chains displace a smaller amount of the material being cut and typically fit chainsaws with guide bars that are 18 inches or shorter in length.
Electric chainsaw sharpeners offer a quick and efficient way to sharpen your chainsaw blades, without the need for tedious filing. They are also versatile, as they can sharpen chains from both electric and petrol chainsaws of various sizes.
