Abrasive wheels are used to perform the operations of grinding, grinding and grinding of surfaces . Traditional equipment of this type has a rough base with a smooth structure. Depending on the size and form factor, such products may differ in the degree of granularity, but with the absence of protruding elements. And in this regard, petal end circles (KLT) are fundamentally different from them, the device of which provides for the presence of ribbed ridges. This allows you to perform rough cleaning operations, effectively removing unnecessary layers on the surface.
Design features of KLT
Circles with a petal structure have a fan-shaped arrangement of the processing segments, which resembles petals. Each segment in itself acts as a means of mechanical action, and also has a fine or coarse-grained coating on the surface. In addition to creating intense pressure on the workpiece, such circles are characterized by the ability to minimize vibration. During processing, the tool maintains a smooth ride, increasing the durability of the power plant tool. Typically, end-face flap circles complement manual angle grinders, so reducing vibration is especially important. Fan sections also provide a cooling effect due to directional air flow. Accordingly, the temperature load on the parts and the working tool is also reduced.
Main characteristics
In the selection, the main parameters will be the diameters of the circle and the degree of graininess. As for the diameters, the size of the landing hole and the size of the functional surface are distinguished. The most common fit diameter is 22.2 mm. It matches most models of Bulgarian spindles. The range of sizes for the working diameter extends from 115 to 180 mm. But there are also end-face flap circles for special operations that require the use of a custom size. An important parameter in the process of operation is the grain parameter. It is indicated by the corresponding marking with a numerical expression - on average from 40 to 120. This characteristic will determine what type of processing a particular circle will be able to implement. For example, a minimum grain level with a marking of 40-50 will provide fine grinding or even a polishing effect. Coarse grain with a large index is calculated for rough cleaning, scraping and cutting.
Varieties of circles
Within the class of petal circles, there are also differences between structural designs. The most common type of product is KLT 1. These are the simplest circles with fan segments, designed for edging, welding seams and flat grinding. KLT 2 models are used in cases when the end machining of parts is carried out in hard-to-reach places. The features of the device of this element include the curvature of the segments. If it is necessary to increase processing productivity, then KLT 3 tooling is used. An increase in the contact area is the main operational quality that distinguishes this grinding wheel. The petal end element of this type has dual segments on the surface. Also, some developers produce models of circles with a flexible structure that allows you to more accurately adapt to the structure of the processed surface.
Bosch Circle Reviews
Bosch is considered one of the leading manufacturers of angle grinders and consumables for such a tool. Users of the petal circles of this brand note the wear resistance and durability of their design. Experts point to the use of high-strength X-fabric with zirconium corundum. This combination, combined with synthetic binder resins, provides this equipment with high technical and physical qualities. In practice, such an addition to the grinder allows you to cope with the deep cleaning of concrete and metal. In addition, Bosch end flap circles are famous for a variety of structures and sizes. The presence of the installation angle also simplifies work in hard-to-reach spots and grinding of narrow welds.
Matrix Circle Reviews
Matrix company specializes in the manufacture of circles intended for use in the composition with the grinders of its own production. Thanks to this, users can more accurately customize equipment for the design of a particular tool. Owners of such circles and technological improvements note. For example, a fiberglass substrate is provided in the product structure, which protects the element from destruction under conditions of increased loads. Although the focus on branded angle grinder models limits the scope of this product, it is universal in terms of processing material. Users indicate that the Matrix flap wheel circle effectively copes with both soft-body and hard materials. Multipurpose products with equal success process both wood and metal. It remains only to determine the size of the circle and its granularity, selecting these parameters for specific processing purposes.
Reviews of Luga circles
Domestic manufacturer "Luga" also has a lot of positive feedback on grinding equipment. Angle grinder operators appreciate the petal circles of this brand for practicality in use and high-quality processing. Complex operations are rarely trusted by such elements, but ridding of metal surfaces of burrs, prominent seams and rust is quite acceptable. It can be noted and low cost, due to which the circle petal end "Luga" is very popular among home masters. On average, such equipment is available for 80-100 rubles.
Recommendations for using KLT
Before grinding or grinding, it is necessary to check the circle for integrity, absence of defects and chips. Next, the element is mounted on the spindle of the grinder using a flange nut. Immediately transgress to work is not worth it. It is better to pre-test the operation of angle grinders with fixed equipment at idle. You can start direct processing when you reach the optimal number of revolutions. In the grinding process, contact is ensured smoothly and without jerking. The softness of the stroke allows you to better control the flap end circles. GOST in section P 52588-2011 also recommends holding about a 15-degree angle at the time of processing. A small spot of contact will enable more accurate spot cleaning.
Conclusion
Using grinding wheels with fan segments offers many advantages. This is a long-lasting and functional tool that allows you to minimize the negative factors of using angle grinders. But it is important to calculate the limitations of this kind of abrasive. Since the end-face flap circles have a segmented ribbed structure, detailed finishing will not be possible, or at least complicated. Such circles are optimally suited precisely for rough labor-intensive stripping. For the same reason, they are more often used in industry. However, a typical cleaning of metal surfaces from welding defects can very well be done with flap wheels. In any case, it does not exclude the possibility of further development with the help of fine-grained abrasive.