The teeth of the saw are dull on the wood during sawing, therefore, for high-quality and efficient work, they sharpen the chain in various ways. If the owner of the saw does not work professionally in sawing wood every day, he grinds the teeth with a file or processes with a grinding wheel. If the chain wear is strong, then a chainsaw sharpening machine is used.
Machine description
The chainsaw sharpening machine is a small compact device that can be easily installed in a workshop even of a small size. It is used in large services and logging. He will become an assistant to the owner of a private courtyard, engaged in the construction of a wooden house or independently preparing firewood.
Its design is similar to a standard cutting machine. Installation of the chain in the mounting position is carried out with a vice with a clamp. Sharpening of teeth is carried out by a moving disk, which is set to the working position manually. In relation to the grinding disk, the chain is placed at an angle that depends on the pitch of the teeth. The edges of the cutting links are adjusted with a grinding disc using a special template.
Reasons for servicing the chain on the machine
The machine for sharpening chains of chainsaws with their own hands works efficiently, saves electric energy due to low power. An easy-to-use device, sharpening links on it over time becomes much easier than working with a file.
Each specialized store or workshop has a machine for sharpening chainsaw chains. A store represented by a service worker will sharpen it. But it is not always close to go to the workshop, and the quality sometimes leaves much to be desired, especially if precise cuts are needed. It is much more profitable to purchase a machine for your own use and learn how to work on it.
Principle of Operation and Design
The start button is located on the bed, there is also a device for adjusting the depth. The angle is set using a graduated scale. Sharpen the teeth with an abrasive wheel mounted on a movable head. For convenience, protective covers and a control handle are provided. The chainsaw sharpening machine fixes the working position of the chain with a wedge, holder and two screws.
The saw tooth is characterized by the presence of two cutting edges located at an angle to one another. When sharpening, the contact angle of the abrasive wheel and the cutting part of the tooth is chosen. The angle in front of the blade is set within 60-80º, the inclination of the rear upper blade is 50-60º, the upper edge is set at an angle of 25-35º.
Spindle speed
This important indicator perfectly characterizes the machine for sharpening chainsaw chains. Reviews say that the higher the speed, the faster the sharpening takes place. For industrial use, a machine with a spindle speed in the range of 4500-7500 rotations per minute is chosen. For turning the edges in a household workshop, it is enough if the revolutions per minute reach 3000.
Machine power
The machine for sharpening chains of chainsaws has another significant indicator - engine power. In the home workshop, units with a characteristic of electricity consumption up to 220 W are used, otherwise the application becomes uneconomical. If continuous sharpening of the teeth is required, then the power, respectively, is increased.For work in industrial conditions, a machine with a power of more than 300 W is suitable, which significantly increases its resistance to heavy loads.
Diameter of abrasive wheel
Depending on this indicator, the purpose of the machine is determined. The sharpening of the edges of the chain for saws is carried out in a circle with a diameter of 10.5 cm. An increase in the diameter of the circle transfers the machine into the category of industrial devices and is used in sharpening cutting tools for lathes. Machines with a circle diameter of 40 cm are installed in the tool shops of enterprises.
An additional function of turning the head reduces the number of permutations of the chain during operation, this speeds up sharpening. To ensure that all cuts are the same, a tilt limiter is provided in depth.
Using a mobile machine
Manual chainsaw sharpening machine It is intended for sharpening in traveling conditions and is put on the saw tire. Refers to portable devices, allows you to perform work with maximum accuracy, to prevent the slightest inaccuracies in angular dimensions. The procedure is as follows:
- the chain clamp relaxes;
- the chain is exposed with the links turning towards the machine blade;
- select the angle of sharpening;
- alternately sharpening the teeth.
In appearance, the mobile hand-held machine resembles a beam saw, in which the blade is replaced with a file with a circular cross section.
A positive point in the work is that all the edges are aligned to one standard size according to the selected settings, it turns out perfectly sharpened chain.
Manual chain sharpening kit
A light load on an electric or gasoline saw allows you to sharpen the chain teeth manually using a special set. It includes several varieties of files and special templates. Elements of the kit can be purchased separately. Operating procedure:
- for sharpening, the saw chain is fixed in a vice with the correct position of each link;
- set the template and file the file to sharpen alternately the tooth area and the end face of the blade.
Kits are sold for chains with a specific configuration, the speed is low. Significant damage to the edges of the chain is impossible to fix, you have to look for other ways. Modern sharpening kits and guides for clamping holders are used as machines for sharpening the chains of chainsaw "Calm".
Buying a machine
They purchase the machine only in specialized stores, it is better not to buy them at natural points of sale. The machine must have documents, warranty, instructions. Sometimes the machine, without visible flaws, shows flaws after a while, but it is necessary to repair it only at its own expense, if there is no manufacturer’s warranty.
The recognized leader in the market of construction tools and fixtures is the Makita trademark. Machine models are characterized by long-term operation and reliability. Machines are characterized by a reduced noise effect, designed for sharpening a large number of tools. Convenient and simple use allows for high performance.
Oregon machines are considered equally demanded. A variety of models with a set of specific characteristics allows you to choose the device for all occasions. Designed for sharpening any kind of chains, it is possible to adjust the cutting pitch of different levels.
In conclusion, it should be noted that the timely sharpening of the chain significantly extends the period of operation of a gasoline or electric saw. That is why, at the first signs of difficulty in cutting, the teeth are sharpened using a template.
