Bosch grinders: features, characteristics and models

In the line of demanded construction tools, a separate position is occupied by angle grinders, which are used in everyday life and in the professional sphere. Among the popular manufacturers engaged in the production of such devices, the Bosch brand should be highlighted, which sells mini-machines and professional multifunctional devices.

Today, a fairly wide range of repair and construction tasks is performed by a grinder. This is due to the functionality, performance and simplicity of the machine, which is why this tool is present in the arsenal of home craftsmen and professional builders. Bosch grinders have established themselves in the market as a reliable and high-quality tool, since the manufacturer regularly modernizes the product range, and also produces improved angle grinders. The main criteria for the quality of the tool of this company are the ergonomics of the body, power and comfort in operation, as evidenced by numerous reviews of the owners of grinders.

The most demanded series of Bosch grinders is the GWS line., however, the range of devices also contains other modifications of the units. The trade brand offers the consumer electric, battery and pneumatic grinders. Today, battery-powered devices are especially popular, which stand out for their mobility, for which they have gained fame as a tool for small professional work and household use.

The Bosch angle grinder operates on a fairly simple principle based on the work of an internal motor, which transmits force to the main working part of the mechanism - the grinding wheel. Craftsmen work with Bosch grinders with tiles, concrete and bricks, as well as with metal alloys of various thicknesses. The device copes with the processing of joints on workpieces after welding, with the help of UMSh, the polishing of paints and varnishes is carried out, and rust is also removed.

The distinctive features of the tool in question are considered to be the additional functionality that the manufacturer has endowed its devices with. Among this list, it is worth highlighting:

• balancing the device and protecting it from vibration during operation, especially for powerful high-performance models;
• the presence of a rotary handle-bracket;
• a casing for a vacuum cleaner;
• the design of the machines, assuming the presence of the SDS quick-locking nut, thanks to which it is possible to quickly and without additional tools replace the working disk.

Today the Bosch brand offers customers two types of angle grinders:

• one-handed - designed for one-handed operation;
• two-handed - to use them you will need to work with both hands.

The Bosch brand tool stands out for its individual characteristics, among which positive and negative qualities can be noted. The advantages of angle grinders include the following features.

• Among similar tools presented by foreign and domestic manufacturers, German devices during operation stand out for their high level of reliability and versatility.
• You can distinguish an original Bosch grinder from a fake by the raw materials used to assemble the case. Also, high-performance and durable motors in devices deserve special attention.
• LBM are distinguished by their ease of use due to innovative developments that relate to the device of the machine body. In addition, most of the models presented are lightweight, which has a positive effect on the duration of the grinder, even with one hand.
• The range of electric grinders stands out for its affordable cost in comparison with similar machines that are produced by manufacturers of construction electrical equipment.
• Grinders rarely fail even with prolonged use. This positive dynamics is due to the presence of the gearbox housing and ball bearings, which are made of materials with increased strength. Also, the units have a double level of sealing, which reduces the risk of premature wear of parts.

However, angle grinders are not without some drawbacks. First of all, this applies to:

• the high cost of professional devices;
• overheating of household units during long-term operation without interruptions;
• some models do not have a system for adjusting the rotational speed of the disk.

The line of German grinders includes a large number of different tools, so it is worth focusing on the most popular grinders for household and professional use.

Recommended for medium-sized jobs, ideal for home use. The body stands out for its strength, the grinder is designed for grinding and cleaning metal surfaces, as well as processing other types of raw materials. To work with wood, you will need to replace the nozzle. The unit is distinguished by the presence of a built-in dust protection system; also among the remarkable features of this modification, it is worth highlighting the presence of a protective casing with coding. The engine power is 700 W, the rotation speed is 11000 rpm. The weight of the grinder does not exceed 2 kilograms; the handles for operation can be installed on either side.

Grinder with good performance and speed control system. The motor power is 12000 W, thanks to which the device can be operated for work with stone, tiles and metal. The machine has a soft start system, is equipped with an adjustable disc rotation speed, so the tool can work in six different positions. The performance of the model is 11500 rpm. The mass of the UMSh is 2.5 kilograms, the device is compatible with discs for wood and metal with a diameter of 125 mm. Among the remarkable features, it is worth highlighting the presence of a built-in system in the grinder that prevents the engine from jamming during operation.

Such a machine is not designed for grinding metal surfaces, but it does an excellent job of deep cuts. According to reviews, the grinder is notable for its rather big performance. Also, the tool stands out for the difference in operation, which concerns the availability of an additional accessory in the form of a handle, which significantly reduces the level of vibration during work with the machine. Power angle grinder is 1500 W, compatible with discs with a diameter of 150 mm. The rotation speed is 9300 rpm, the mass of the grinder is 2.5 kilograms.

This model belongs to the class of high-performance and heavy equipment, therefore it is positioned as a multifunctional tool for work in the industrial and construction sectors.Among the features of such a machine, it should be noted the presence of a rotary handle-bracket and an anti-vibration handle. The motor power is within 2600 W at a disc rotation speed of 6500 rpm. The grinder is compatible with circles with a diameter of 230 mm. The device power button has a smooth start, there is a disk jam protection system.

The Bosch brand tool has proven itself on the positive side, but when choosing the right device model for work, you should take into account several nuances that will facilitate and speed up the buying process.

• The primary task is to determine the range of operation, including the designation of the direction of the equipment. This point is important because professional and household tools will differ in cost, weight, and other important criteria. The powerful equipment is designed for many hours of daily use. As for household models, they will need breaks in the process of work.
• The next criterion for selecting a suitable angle grinder is the diameter of the working disk. Today, the line of the German brand includes devices designed to work with discs with a diameter of 115 mm, 125 mm, 150 mm, 180 mm, 230 mm. Smaller consumables are recommended for home use in order to sand products, remove paint and varnish materials and rust. More productive grinders will work with larger discs. Such elements can powerfully cut metal, concrete, stone, tiles, etc.

The multifunctional cutting tool is quite in demand in the course of performing various construction and repair tasks, but it is also quite tram-hazardous. That is why the operation of angle grinders requires compliance with safety precautions.

Any tasks with the grinder should only be carried out with glasses and a protective cover. In addition, it is necessary to take into account the basic rules for operating the tool:

• it is forbidden to touch the discs immediately after using them, since during the rotation they become very hot and can provoke a burn;
• the device should be held as tightly as possible in the hands, preferably with both limbs;
• the position of the operator's body on the floor must be stable, therefore, if you feel unwell or fatigue, you should refuse to work with the cutting tool;
• when using electrical devices, fasten the cord so that it does not interfere with the manipulation, in addition, it is best to fix it away from the disc;
• during cutting, the machine must be positioned so that the cutting line passes by the master, which will reduce the risk of injury situations if the blade is jammed;
• you can not make too much effort and put pressure on the grinder during work;
• it is important to ensure that the cutting is carried out smoothly as the grinder moves.

Also, the power cord and plug deserve special attention. Before starting work, you should make sure that there are no creases and other damage that can provoke a short circuit. In battery models, it is necessary to monitor the health of the power supply. Also, during the maintenance of the tool, you need to monitor the condition of the carbon brushes and the armature, and lubricate the gearbox.

For an overview of the Bosch GWS 13-125 CIE grinder, see the following video.