At repair and construction jobs quite often it is necessary to use the angular grinder called in popular speech "Bulgarian". It is convenient to delete with such tool rust traces, to remove old paint coat, to cut the most various materials. That the machine regularly performed the functions, it needs to be picked up correctly.
Angular grinders
Known practically to each house master "Bulgarian" is called the angular grinder because its working shaft is located at right angle to the engine plane, and at all not because such tool it is convenient to process difficult corners. Such technical systems are separated into several types, differing in functionality and assignment. Traditional tame "Bulgarian" - only one of the most widespread electric tools of this family.
Angular grinders with success use for cutting and processing of metal parts, for grinding and thinner polish of surfaces. Separate types of detachable disks allow to cut stone, brick, ceramic tile and other solid materials. It is possible to delete with the grinder also defects of metal: to smooth welds and flows, to clean rust and so on.
Addition in the form of wire brush will give the chance quickly and with little effort to clean off old varnish and paint from different surfaces.
One of the main performance data of the angular grinder – the power consumed by it. High rates are characteristic of the professional tool which not so strongly heats up and allows to apply nozzles significantly of large diameter. It is important by production of complex works, than diameter of the cutting disk is more, especially the deep cut is carried out by the machine.
Grinder: household or professional?
The very first question arising when choosing the grinder: what model is more preferable – household or professional? Here it is necessary to proceed from the aims which you pursue and also from the needs for the similar tool. Household angular grinders most often apply not regularly, and only as required. They have not too big power and rather low speed. Performance of the household tool is also not really high, and after short work such machine needs not less than 15 minutes of rest.
It is possible to work with the household grinder no more than 3-4 hours a day.
To the advantage of machines of household type it is possible to carry their reasonable price, compactness and ease. And here the number of additional functions of the household machine is limited. But if you are going to use the angular grinder only for simple works at the dacha or in the house, such electric tool will be the best and optimum choice. For continuous operation for an appreciable length of time you need professional model. The design of such grinder considers requirements of maximum capacity. The professional tool has the bigger weight and power and also differs in more essential sizes. Reliability of nodes of the machine of this type is significantly higher, and the number of functions differs in variety.
The quality materials used at production of professional grinders allow to use them for hard work in several changes.
Types of grinders: features of the choice
By production of construction and finishing work several special types of angular grinders are widely used: tape, vibration, eccentric. Each of models has the merits and demerits and also range of application. Tape grinders give the chance to make rough grinding enough plain surfaces. They are often used when finishing interior of rooms when it is required to process flat surfaces, considerable on the area. Tape devices differ in very high performance, but not too high quality of processing of product. Range of application of such machine: removal of old coverings, grinding of proshpaklevanny surfaces, processing of window frames and doors. Grinders of vibration type intend for thin processing and polish of flat surfaces. Them it is good to grind metal, plastic, wood and some composition materials. Machines of this type have the squared sole making reciprocating motions of small amplitude. Separate versions give the chance to process hard-to-reach spots, for example small parts of furniture, door cases or handrail of ladders. Eccentric grinders incorporate the special clown that allows working part of the device to make at the same time both reciprocating, and circular motions. Such models differ from other types of machines in higher efficiency of processing of surfaces. The eccentric machine will show the best results on curved surfaces and at finishing grinding. The additional convenience gives to the machine the device for removal of dust. Consider when choosing that eccentric machines or devices of vibration type put on small speed more suit for grinding of plastic products. The small number of turns should be applied also when finishing lacquered surface which is very sensitive to high temperatures.