Ushm with speed control: customer reviews

In the segment of angle grinders (USM) today you can find models for a variety of tasks. Major manufacturers of the "Bosch" and "Makita" level produce modifications with effective functionality and ergonomic means of adjusting the parameters of operation. One of the last and most successful optional additions to the technology of this kind is the adjustment of the rotational speed of the disk. Models with this capability are distinguished by their versatility in use and increased convenience for the operator. At the same time, the USM with speed control is presented in different versions, so before buying it is worth to familiarize yourself with the market offers in advance.

Features of models with speed control

Unlike traditional models without the possibility to adjust the speed of the cutting element, such "grinders" enable more precise selection of operating parameters. In particular, the speed-controlled rotational speed control is effective, if it is required to serve materials of different quality in one work area. So, in working with metal, the operator applies a frequency in the range of 2-3 thousand rpm, and the stone is optimally ground and cut at a speed of 7 thousand rpm.

At the same time, it is not always about the high quality of the angle grinder that is indicated by the highest frequency setting limit. For example, the ESM with a speed control in the range of 2-6 thousand rpm can also be effective in processing wood and plastic. Compensate material even manufacturers do not recommend to adjust due to the negative impact on working equipment.

Tool characteristics

The implementation of the speed control system largely depends on two parameters - the diameter of the working disk and the power of the tool. As for the size of the nozzles, they vary from 115 to 180 mm. The typical model of the USM 125 with speed control allows working at a frequency of 3 to 10 thousand rpm. But as the diameter of the disk increases, the corridor of adjusting the "Bulgarian" for the revolutions is reduced. For example, a technique equipped with 180-millimeter discs rarely overcomes the limit of 8,000 rpm. Another thing is that the power potential in the form of capacity can support this level.

In household models, the power does not exceed 1500 watts most often. Usually this category is represented by 1200 W instances, designed for working with small format disks. It can be the same USM 125 with speed control, which will allow surface treatment of the stone, cut the thin metal and gently grind the wood. More powerful equipment with a capacity of 3000 W is not only equipped with large disks, but also characterized by high performance - up to 5 hours a day with short breaks.

Reviews of the model Bosch GWS 850 CE

The German manufacturer can confidently turn to expensive high-power tools, but in this case, the compact model GWS 850 CE is of more interest. As users note, the "Bosch" Ushm with speed control in this version is advantageous for its balanced functionality and structural ergonomics. Power 850 W does not allow to work effectively with large volumes of stone and metal structures, but grinding, mopping and quartz this "Bulgarian" performs quite well.

As for the revolutions themselves, the range from 2.8 to 11 thousand rpm makes the model almost universal from the point of view of household use. Although the manufacturer himself positions the USM with the Bosch speed adjustment in the GWS 850 version as professional, the specialists still do not recommend purchasing it for solving complex problems in which high power and endurance of the tool are required.

Reviews about the model Makita 9565 CV

This model has much in common with the previous device, but there are significant differences. First of all, users point to the power potential, which is already 1400 watts. It would seem that this is enough for a full work with the stone and metals, but the manufacturer still claims the machine as a grinding machine. Of course, the "Makita" UHM with speed control in the modification 9565 CV can also be used in working with solid materials, but do not forget about structural limitations. But with respect to ergonomics, the model has practically no complaints. The Japanese also provided a comfortable handle with a rubberized lining, and an anti-vibration system, as well as an enhanced dustproof function.

Reviews about the model "Interskol" 1100E

Another representative of the segment of compact "Bulgarians", but already domestic production. Users of the model note its good working properties, reliability of construction, the availability of ergonomic adjusting devices and affordable cost. So, if the German and Japanese models cost an average of 6-8 thousand rubles, then the Interskol USM with a speed control in this version is estimated at 5-6 thousand. At the same time, the performance characteristics are generally similar to foreign devices.

Comments about the model Metabo WEA 17-125

If the previous models represent a segment of low-power and medium-sized grinding machines, the development of WEA 17-125 is already a high-power class. The power potential of this USM with a speed control is 1700 W, which allows to qualitatively process both stones and thick metal structures. But not even the power of this version is interesting.

As the owners of the instrument say, practically all modern technological solutions for "Bulgarians" have been concentrated in it. In this list, users identify the possibility of stable support of revolutions at high load, effective vibration damping, semi-automatic replacement of rigging, etc. True, the cost at which the US market Makita is available in the Russian market with a speed control in the performance of WEA 17-125 . For it will have to pay the amount of 11-12 thousand.

Conclusion

The functionality of the power tool and the optional features are those characteristics that customers primarily pay attention to. But, not all of the proposed technologies are really useful in practical application. An example of the effective use of additional options just shows the USM with speed control. Reviews of such machines note that the ability to adjust the rotation speed of the disk not only saves time for performing work operations, but also improves the quality of the result. Another question is that different models provide for their own range of adjustments, suitable for the corresponding set of operations. Therefore, in addition to the very possibility of adjusting the revolutions when choosing a "grinder", it is important to take into account also the engine power and the maximum diameter of the disk - these parameters just determine the range by which the operator can choose the optimum operating frequency.