Hitachi grinders: features and characteristics of models

Among the wide variety of construction household and professional tools, it is worth highlighting such multifunctional devices as "grinders". In the list of brands that sell such a tool, Hitachi grinders are especially popular, the range of which is represented by equipment of various capacities and configurations.

Asian construction tools have recently had positive characteristics that relate to quality and productivity - Hitachi grinders belong to this category of products. In the domestic market, counterfeits of this brand are rare, therefore, the masters of the professional and household sphere distinguish a high level of reliability as the features of this line of devices.

The entire line of tools is distinguished by the device of a plastic case, which has two parts, the original color and overlays on it. As a rule, the manufacturer highlights the external taps in black, and the additional handle on the devices is made with a certain marking in white. Models of "grinders" are designated by a special abbreviation on the basis of which, for the convenience of users, you can easily determine the diameter of the circle with which the unit is equipped. Also, the manufacturer labels its devices based on power, which makes it easier for the consumer to choose.

Among the design features of the internal structure of machines, it is worth noting the main advantage - the presence of a protective systempreventing overheating of the unit; This is achieved by equipping all models with the latest generation of cooling systems. Such distinctive characteristics have a positive effect on the operating life of Japanese grinding machines. Hitachi grinders belong to the category of universal tools, since they are able to cope with several tasks, but subject to the availability of a diverse set of attachments. When equipping machines with the necessary working tools, with the help of devices, you can perform grinding of materials, cutting products, cleaning of hard materials, including stone and metal.

Taking into account the power of the engine in the machines, the manufacturer classifies the tool into two large groups:

• household tool;
• "Grinders" for industrial professional use.

The popularity of Hitachi tools is due to the fact that they have a number of advantages. Among these positive features are the following.

• All units are equipped with a built-in variable speed soft start system. This reduces inrush currents as well as minimizes tool shock loads. In addition, such functionality makes it possible to exclude the possibility of failure of electrical fuses.
• The machines are equipped with a quick-clamping nut, which has a positive effect on the productivity of the tool.
• All models of devices during assembly are reliably protected from all kinds of contamination, so even the most dusty work with the "grinder" will not affect its power and functionality in any way.
• Thanks to the balancing system, the tool can be adjusted to work with wheels with an offset center of gravity.

But at the same time, the Japanese professional and household instrument is not without its drawbacks. As for the electric tool, the weak point in the devices is carbon brushes and switches. There are frequent cases when during operation the cable itself in the area of ​​power input prematurely becomes unusable. This can be a bare wire or a break.

Among the popular models of Japanese "grinders" Hitachi should highlight some new items that are in great demand in the domestic market.

The tool stands out for its average performance, however, during operation, the "grinder" is distinguished by its convenience due to the peculiarities of its body. The device is recommended for use in construction and repair in the household and professional area; in terms of cost, this model belongs to the line of affordable products.

"Grinder" can be used for cutting metal products, as well as for grinding work. The engine of the unit has a power of 580 W, an integrated cooling system of the units in the form of a fan in the housing. To increase the comfort of using angle grinders, the manufacturer equipped the model with a slide switch on the case. The device is reliably protected from dust and dirt with a special casing. The machine operates in conjunction with cut-off wheels with a diameter of 125 mm, the rotation speed of the disk is 10 thousand rpm.

The model stands out with an engine power of 840 watts. Just like the previous modification of the tool, the "grinder" is equipped with a 125 mm cutting disc. Among the features of the model, it is worth noting the economy in terms of electricity consumption. In addition, the machine has an adjustable handle that can be positioned in two positions. The body of the device is made of shockproof plastic with protection against dust penetration inside.

Universal model "grinder" with a power of 730 W, thanks to which the tool is used in the construction industry for cutting metal products and grinding surfaces. According to consumer reviews, the tool demonstrates good performance at a disk rotation speed of 10 thousand rpm.

There are a number of indicators that should be taken into account in the first place when choosing a grinder. This applies to the power of the device, the speed of revolutions, as well as the size of the cutting wheels and the availability of additional functionality. Preference should be given to tools with a built-in soft start system, which will exclude sharp vibrations of the tool during operation. It is best for the device to have special sensors that will monitor the speed of rotation of the circles, protecting the machine from overheating and too heavy loads not intended for a particular model.

Features of using angle grinders depend on the scope of the units. As for household tools, it is not recommended for heavy loads, in addition, such mechanisms, most often, have low power. As a rule, after 15–20 minutes of working with the grinder, the tool should be put aside for some time so that it does not overheat. Professional grinders can work several times longer, since their power and built-in cooling systems will reduce the risk of overloading mechanisms.

The general rules for all devices during operation are the following points.

• Before starting the machine, you should make sure that the cutting disc is in good working order, check the reliability of its fixation. Particularly noteworthy is the recessed center detail. If defects are found, the consumable must be changed, since the operation of the "grinder" with a faulty wheel can lead to jamming of the entire system.

• It is also necessary to regularly check the reliability of fixing all fasteners in the mechanism and housing, to inspect the mechanisms on the bearings.
• The design of machines with carbon brushes requires a special approach to the maintenance and operation of brush holders. As a rule, this part has a certain period of operation, so you can roughly track when a replacement should be carried out in the mechanism. The brushless model does not require solving such problems during operation and maintenance.

In the next video you will find a detailed review of the Hitachi G13VE grinder.