The cutting tool needs regular maintenance in order to maintain performance. Hand tools to perform high-quality grinding or grinding operations is impossible. For this, special equipment equipped with the appropriate abrasive elements is used. As a rule, emery machines are used for such tasks, the equipment of which provides for sharpening. There are compact models for domestic needs, and modifications for industrial use with increased performance, so choosing the right option is not difficult.
General information about emery machines
In terms of design, such equipment resembles traditional cutting saws in many ways. However, there are significant differences in the working bodies. Mentioned sharpener can be represented by abrasive wheels with various indicators of grain size, thickness and diameter. It is these parameters that largely determine whether the installation belongs to a certain class of equipment. The range of functions that the unit is capable of performing depends on the characteristics of the circle. For example, the grinding and emery machine is equipped with a fine-grained tape, and to perform full sharpening, models that support working with disks for rough processing should be used.
Also important is the power of the machine, which varies from 200 to 1000 watts. This indicator affects the ability of equipment to perform operations with different materials. For example, the higher the power, the more efficient the processing of metal products. And on the other hand, if you plan only decorative or external refinement of surfaces in the form of getting rid of burrs and small defects, then a small power of 500 watts is enough.
Design features
The main difference between the device of such machines is the configuration of the cutting elements. The unit can be equipped with two discs or a combination with a wheel and sanding belt. As a rule, masters strive to implement a combination of processing components that perform different functions. So, if it is planned to sharpen a strongly deformed or a new tool, then at the first stage a coarse-grained disc can be used, after which a sanding belt comes into operation, providing a final finishing of the surface to the optimum state. In most cases, emery machines provide for the perpendicular arrangement of one working element with respect to the second. This configuration, as the experience of specialists shows, is the most profitable both in terms of operator convenience and in terms of the quality of the result.
Types of equipment
The main classification involves the separation of machines according to the nature of the processing operations. The most common universal unit, the functional capabilities and power of which is enough to perform a full range of grinding operations. Also familiar to many craftsmen is a sharpening machine, which is focused on the processing of high-speed steel tools. The specialized equipment should also include grinding units, with the help of which complex chain processing is performed. Also , the grinding machine is classified by type of installation. Two types of models are widespread - desktop and floor. The first option is a group of medium-capacity household units that perform simple grinding and sharpening tasks. Floor models have a more massive structure, have high performance and, as a rule, are used in enterprises in continuous operation.
User's manual
Almost all sharpening and grinding operations are performed in two stages. First, the operator must form a flat bevel. It is important that the edges are sharp, have no burns and rounding. The main task at this stage is to grind the surface from the right sides so that a cutting edge that is optimal in quality is formed. This will allow in the second stage to form a blade with the necessary parameters. So, in the second stage, emery machines are used to make edits. This is achieved by sharpening the blade and giving it the necessary sharpness. In addition, in the same part of the event, the operator eliminates possible defects that were left in the process of edge formation. This can be roughness, burrs and various bumps that are eliminated by grinding at low speeds.
Maintenance Instructions
Overhaul provides for a complete analysis of the machine with a thorough revision of the technical stuffing. Checks the condition of the motor, as well as related components and components. Special attention deserves the condition of the hull and its parts. It is important not to forget that the strength and reliability of the design of such units directly affect the safety of the work process. Before each working session, the disks are checked. The condition of the circle is evaluated not only in appearance. Professional craftsmen start emery machines with disks and listen to them for the presence of beats. In fact, this is an analysis of increased vibration, which may indicate unevenness at the edges of the disk. Correct the situation using a diamond pencil or cone. These devices remove excess from the circles, thus reducing deviations during rotation.
User reviews about emery machines
Provided that the machine is correctly selected from the point of view of the functions assigned to it, users in most cases manage to achieve the expected results. Especially owners praise high power models. Such equipment is devoid of the disadvantages of low-power units and, as a rule, can be used as a universal technique. These units include an emery floor machine, which covers the whole range of grinding and grinding operations. True, the cost of such models is quite high.
Manufacturers and prices
The assortment is wide and contains products of many popular brands of the construction market. The most worthy offers can be found in the Bosch, Makita, Metabo and Hammer ranges. As for domestic production, this category is represented by Energomash, Zubr, Interskol, etc. The cost varies on average from 1.5 to 7 thousand rubles. It is important to consider that the desktop emery machine, the price of which does not exceed 2 thousand rubles, is more likely to be able to provide only simple grinding operations. For serious sharpening, you should focus on foreign equipment worth 4-5 thousand rubles.
Conclusion
Emery machines are a very conservative type of equipment. Their principle of operation leaves virtually no room for the introduction of high technologies and even automated systems. Therefore, the main direction in which the most popular benchtop emery machine is being improved is to increase the reliability of the design and the accuracy of work operations. To do this, manufacturers are using increasingly high-quality alloys for the manufacture of cases, develop effective configurations of the location of functional organs, and also work on security systems. However, there is progress in terms of ergonomics. In the latest models of machines, for example, appeared backlight and more convenient controls.