In the segment of angle grinders (angle grinders) today you can find models for a variety of tasks. Large manufacturers of the Bosch and Makita level produce modifications with effective functionality and ergonomic tools for setting work parameters. One of the latest and most successful optional additions to this kind of technique was the speed control of the disk. Models with this feature are characterized by versatility in use and increased convenience for the operator. At the same time, angle grinders with speed control are presented in different versions, so before buying, you should familiarize yourself with the offers of the market in advance.
Features of models with speed control
Unlike traditional models without the ability to adjust the rotational speed of the cutting element, such "grinders" provide an opportunity for a more accurate selection of operating parameters. In particular, an angle grinder with speed control is effective if it is required to serve materials of different quality in one working area. So, when working with metal, the operator uses 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 aboutthe high quality of the angle grinder is evidenced precisely by the highest frequency limit of the setting. For example, an angle grinder with speed control in the range of 2-6 thousand rpm can also be effective in processing wood and plastic. Even manufacturers do not recommend adjusting a pliable material due to the negative impact on the working tool.
Tool specifications
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 standard model angle grinder 125 with speed control allows you to work at a frequency of 3 to 10 thousand rpm. But as the diameter of the disc increases, the corridor for adjusting the “grinder” in terms of speed is also reduced. For example, equipment equipped with 180 mm discs rarely exceeds the limit of 8 thousand rpm. Another thing is that the power potential in the form of power can maintain this level.
In household models, most often the power does not exceed 1500 watts. Usually this category is represented by 1200 W instances designed to work with small format discs. It can be the same angle grinder 125 with speed control, which will allow you to surface stone, cut thin metal and gently grind wood. More productive equipment with a power of about 3000 W is not only equipped with large disks, but is also characterized by high performance - up to 5 hours a day with short breaks.
Reviews about the Bosch GWS 850 CE model
The German manufacturer is a sure bet for expensive high-powered power tools, but in this case the compact GWS 850 CE is more interesting. According to users, the Bosch angle grinder with speed control in this version compares favorably with balanced functionality and structural ergonomics. The power of 850 W does not allow you to work effectively with large volumes of stone and metal structures, but this "grinder" performs grinding, cleaning and quartzing quite efficiently.
As for the revolutions themselves, the range from 2.8 to 11 thousand rpm makes the model almost universal in terms of domestic use. Although the manufacturer itself positions the angle grinder with Bosch speed control in the GWS 850 version as a professional one, experts still do not recommend purchasing it for solving complex tasks that require high power and endurance of the tool.
Reviews about the model Makita 9565 CV
This model has a lot in common with the previous device, but there are also significant differences. First of all, users point to the power potential, which is already 1400 watts. It would seem that this is enough for full-fledged work with stone and metals, but the manufacturer still declares the machine exactly as a grinder. Of course, the Makita angle grinder with speed control in the 9565 CV modification can also be used in working with solid materials, but do not forget aboutstructural restrictions. But in terms of ergonomics, the model has practically no complaints. The Japanese have provided a comfortable handle with a rubberized pad, 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 "grinders", but already of domestic production. Users of the model note its good working properties, design reliability, ergonomic adjustment devices and affordable cost. So, if the German and Japanese models cost an average of 6-8 thousand rubles, then the Interskol angle grinder with speed control in this version is estimated at 5-6 thousand. At the same time, the performance characteristics are generally similar to foreign devices.
Reviews about the Metabo WEA 17-125
If the previous models represent a segment of low-power and medium-performance angle grinders, then the development of WEA 17-125 already belongs to the high-power class. The power potential of this angle grinder with speed control is 1700 W, which allows high-quality processing of both stones and thick metal structures. But this version is not even interested in power.
As the owners of the tool note, almost all modern technological solutions for grinders are concentrated in it. In this list, users highlight the possibility of stable support of revolutions under high load, effective vibration damping, semi-automatic change of equipment, etc. True, the cost at whichavailable on the Russian market Makita angle grinder with speed control WEA 17-125. For it you will have to pay the amount of 11-12 thousand
Conclusion
The functionality of a power tool and optional features are the characteristics that buyers first of all 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 angle grinder with speed control. Reviews of such machines note that the ability to adjust the disk rotation speed not only saves time for performing work operations, but also improves the quality of the result. Another question is that different models provide their own range of adjustments, suitable for the corresponding set of operations. Therefore, in addition to the very possibility of adjusting the speed when choosing a "grinder", it is also important to take into account the engine power and the maximum diameter of the disk - the range over which the operator can choose the optimal operating frequency depends on these parameters.
