The electric grinder was sharpened. Purpose and choice

In any household, a minimum set of power tools is required, which helps to perform various jobs with less time and effort. One of these devices - ground electric.

Perhaps in an ordinary apartment there is no special need for it, since the knife can be sharpened by hand. But in a private or suburban house this power tool becomes more in demand. At the dacha it can be used for sharpening garden and household equipment.

Also, the sanding machine is also necessary when repairing the apartment. It can sharpen drill bits for a drill, a chisel for a perforator, a tool for removing old paint and plaster. With the help of an abrasive stone, tiles, metal pipes, wooden skirting boards and so on are fitted.

This power tool is safe to use, because it has low engine speed. The household version of the grindstone is designed for 2 hours of continuous work. The power of domestic emery - from 120 to 400 watts. The larger the power of the electric motor, the more rigid the material can handle the sharpener.

Choice of electric ground

If you use a tool that requires periodic sharpening, grinding or polishing, you need to purchase an electric grindstone. How to choose it depends on for what type and amount of work you are going to use the device.

For sharpening a simple household tool, simple models with two circles of the same diameter, but of different thickness, are quite suitable. Usually one of the circles has a thickness of 40 mm and a fine-grained structure, the second (20 mm thick) is designed for rough pretreatment. To sharpen kitchen knives, enough emery 150 W and with a stone diameter of 125 mm. To sharpen shovels or axes, an abrasive wheel with a diameter of 175-200 mm and a machine with a power of 250-300 W are needed.

Pay attention to the diameter of the inner hole of the grinding wheel (fit). The most common is 32 mm. Under the fit of 16 mm, 20 mm, 12.7 mm pick the right circle will be more difficult. When choosing an emery, it is desirable to provide that the nozzles on the shaft allow the installation of disks with different internal diameters.

If you are going to process workpieces for a tool, you will need an electric grinder with an additional brush disc. It serves for pre-stripping of material that has not previously been sharpened. In some models, the second circle is replaced by a grinding belt. To sharpen the drills you need a machine with special grooves. But such grooves are usually not provided on the tool for processing large and thick products, such as axes or shovels.

For a finer surface treatment of objects, there are models with different speeds of rotation of the circles. They are usually perpendicular in the grinders. But such machines have large dimensions and they need a large area. The market of power tools is saturated with various models of similar devices from different manufacturers. Among the domestic brands, the machines of the Zubr and Kraton firms have a good reputation.

Electric power for sharpening knives

There are household appliances designed specifically for sharpening kitchen knives or scissors. Electricity grinder is now used not only by chefs of restaurants and cafes, but also by ordinary housewives. To get a sharp blade, you do not need special skills. During grinding, there is no need to perform complicated manipulations with the knife.

The sharpener for electric knives determines the right angle of sharpening. The process takes place in two or three stages with the subsequent verification of the result. First, the abrasive is sharpened directly, then the surface of the blade is polished on ceramic plates. Models are often equipped with blocks of elements with a diamond coating. Therefore, they work for a long time without the need to replace parts.