Angle grinder, which is popularly called a grinder, is a universal tool with which you can perform a whole list of works: cutting, grinding, cleaning metal, wood, stone and other materials. This tool has found its application in industry. It is ideal for both professional repair work and household chores.
Now there are a large number of different models of angle grinders on the market, intended for home or professional use. The latest grinders with speed control are equipped with special nozzles of any size, are characterized by the presence of descent fuses and additional functions. With all the variety of models and sizes, grinders have a common task, which is to make the work process as easy as possible for a person and savetime.
Which grinder to choose? Household and professional tools
When buying an angle grinder, you should consider indicators such as rotation speed, power, availability of additional functions and disk sizes.
Indispensable in everyday life are angle grinders. These are ordinary angle grinders, which are distinguished by their compact size and exactingness in terms of operation. After 10-15 minutes of work, the owner of a conventional grinder is forced to take a mandatory break in order to prevent it from overheating. Household grinders are not intended for daily use. Their technical performance is significantly lower than that of professional devices that can be used for a long time without fear of overheating. In addition, professional angle grinders are equipped with brass inserts and a metal body. This is due to the fact that they have to be used in extreme conditions: laying pipelines, earthworks, etc. An environment like this requires a tool that is as dust and moisture resistant as possible.
Universal Angle Grinders
Universal grinders are considered with speed control. These machines are ideal for cutting, sanding and polishing all kinds of materials.
Grinders with speed control and soft start are mainly used in cases where it is necessary to polish stone or wooden surfaces. This is due to the featuresstructures of these materials, the processing of which at high speeds is undesirable, as it leads to surface destruction and rapid wear of the nozzles.
The best grinder manufacturers
The production of angle grinders is carried out by domestic and foreign companies. High results were achieved by German manufacturer Bosch, Japanese Hitachi and Makita. They mainly produce models for professional use: angle grinders with speed control, power exceeding 1200 W, and various disc diameters. Angle grinders make it possible to perform any kind of complex work. Using special diamond blades, you can cut concrete and stone, prepare walls for wire. The presence of an additional side handle provides control over a powerful power tool during its operation.
Bosch: Model GWS 850 CE
Bosch grinders with speed control and a power of 850 watts are ideal for grinding with diamond cups of natural and artificial stone. This angle grinder is one of the most popular electronic tools for professional stone engravers who need to polish their cuts on granite or marble every day. This grinder is lightweight, which makes it much easier to operate: the master can hold it with one hand.
The Bosch GWS 850 CE variable speed grinders are guaranteed for one year of professional use.
You can adjust the grinding speed using six positions. The speed range of rotation of grinding nozzles and discs is from 2,800 to 11,000 revolutions.
The quality of polishing directly depends on the speed of rotation of the nozzles. The smaller it is, the higher the quality of work. This requirement applies to granite, marble, glass and other surfaces that can be worked with a grinding tool equipped with an adjustment function. To work with marble surfaces, experts recommend choosing a speed at which the grinder produces 2800 revolutions. Wooden surfaces can be processed with special nozzles at the highest speeds. The maximum speed for this grinder is 11000 rpm.
The Bosch GWS 850 CE comes with a wrench, handle and two mounting washers for discs and attachments.
Polishing tips
The quality of polishing work depends on the adjustable speed and the right nozzles. For polishing marble and granite surfaces, experienced engravers who work with stone professionally recommend flexible diamond discs. For wood, an emery petal wheel is suitable. For polishing metal products and surfaces, it is best to use circles containing felt or felt, which is attached to the nozzles with a special Velcro. Felt nozzles are also suitable for polishing glass. But in this case, you need to purchase a special diamond paste. Painted or lacquered surfaces should be treated with lambswool tips.wool.
Household angle grinder Makita GA5030
Bulgarian "Makita" with speed control is considered one of the best models of household angle grinders. Its price is 2500 rubles. The Makita GA5030 is lightweight at 1.8 kg, which is an advantage over other similar models in this price range.
The design of the angle grinder is characterized by high build quality and is equipped with a speed control function, which allows the GA5030 Makita to be used for any kind of work: cutting, grinding and polishing. Numerous positive consumer reviews indicate that the Makita GA5030 model has low vibration during operation, and the additional handle that comes with the tool greatly facilitates the operation process. Despite all the advantages of the grinder, its owner should remember that this angle grinder (angle grinder) belongs to the category of household grinders, which means that breaks should be taken periodically during work.
Professional angle grinder Makita 9565Cv
Angle grinder grinder "Makita" 125 mm speed control ensures the implementation of any kind of work at speeds from 2800 to 11000 rpm. The Makita 9565Cv requires a 125mm disc and 220V power. Power consumption angle grinder - 1400 watts. Bulgarian 125 mm with speed control 9565Cvis a professional power tool, the design of which contains:
- adjustment of revolutions of rotation, which makes it possible to optimize the mode of operation. The spindle receives a certain speed required for a specific task: cutting, deburring or grinding;
- lock the power button. This is important to ensure safety during operation, especially in cases of unplanned power outage (lights off, pulling the plug out of the socket). Thanks to the secondary start fuse, the owner of the Makita 9565Cv is protected from arbitrary switching on of the grinder and does not risk injury;
- double insulated;
- speed stabilization system, which, due to changes in disk loads, facilitates the process of working with massive labor-intensive parts;
- two-position side handle, which ensures a secure hold of the power tool during operation. The comfortable handle option performs an anti-vibration function.
USHM 9565Cv is an angle grinder "Makita" 125 with speed control and smooth descent, due to which the power tool is protected from critical overloads at the moment of switching on. Soft start protects the angle grinder system and the numerous parts contained in it (disk, winding, motor brushes) from a strong power surge. Turnover is gained smoothly, the grinder does not tremble in the hands.
How to choose the right disk size?
For angle grinders, discs with a diameter of 115 to 230 mm are intended. The working part is the part that protrudes beyondbody of the device. Nozzles tend to wear out during operation. Discs with a diameter of 115 mm wear out quickly and are suitable for cutting products with a thickness of no more than 3 cm. In addition, this diameter is unsuitable for working in hard-to-reach places. 180-230 mm discs are best suited for such operations.
Metabo WEV 10-125 Quick
This is another angle grinder with speed control. 125 mm are considered to be the optimum disc size for the Metabo WEV 10-125 Quick. Among all known 125 mm angle grinders, this model is considered the best in terms of power. It is distinguished by a wide range of spindle speed adjustment and a constant number of revolutions under the influence of a variable load. This is ensured by built-in electronics, which protects the angle grinder motor from overloads and smoothly starts the system. The grinder has an automatic safety clutch and corner brushes that turn off if the voltage suddenly disappears. This is important for safety during the operation of a powerful angle grinder.
Metabo angle grinder WEV 10-125 Quick is an angle grinder with 125 mm speed adjustment, overheating indicators, automatic clutch, long power cable, stabilizer and quick clamping nut. This angle grinder, according to consumer reviews, has no drawbacks and is widely used for various types of work. This is one of the best models of the firm.
Hitachi G13SS
This Japanese-made angle grinder is characterized by mediumindicators of the main parameters. Nevertheless, the grinder is very convenient, ergonomic and relatively inexpensive. Spheres of application of angle grinder G13SS - car service, construction and production. Power tools can easily cut metal and grind any surface. The weight of the angle grinder and the narrow grip allow you to hold it with one hand in any position. This angle grinder is considered a power tool intended for professional use. According to consumer reviews, the Japanese G13SS is very convenient to work with. The only drawback of this grinder is its low power.
The ergonomic shape of the model, the presence of an adjustable handle in its design, which allows it to be installed from any side, the ease of replacing carbon brushes are advantages for Hitachi G13SS that many users have already appreciated.
What should I consider when buying?
If you want to purchase an angle grinder, you need to familiarize yourself with the technical specifications of the model you like. It is best if there is a soft start. This will protect the owner of the grinder from possible jerks when turning on the power tool and from knocking out the fuses. The problem of increasing the load on the angle grinder system can occur when the speed decreases. In such cases, overheating occurs. It is desirable that the angle grinder be equipped with modern sensors that regulate the speed of revolutions during overload and overheating. The more complex the model system, the higher its class and the more expensive it is. At the same time, more volumework that can be done with an expensive power tool.
