The processing of solid building materials often requires the use of a special tool. The operation of cutting sheet metal is one of the most common. Quite a variety and equipment, which allows it to perform it in a quality manner. Today, such problems are solved by thermal apparatuses, laser devices, as well as by sandblasting hydroabrasive machines. At the same time, traditional mechanical tools, which also give a good result, remain relevant. These devices include guillotine scissors, presented in the market in a wide range.
Varieties of guillotine for cutting metal
Conventionally, a group of guillotine cutters can be divided into three segments. The first will include the most powerful electrical machines that operate on the drive mechanism and include a full-fledged motor in the device. These are the most powerful guillotine shears with which you can cut metal sheets in the production flow mode. Next comes the intermediate category of carvers, whose representatives are devoid of an electric drive, but also have a massive active element in the form of a cutter and frame, the presence of which unites such models with the first class of planes.
If we are not talking about complex operations that are planned to be carried out in large volumes, it makes sense to use compact and undemanding cutters. These guillotine hand scissors, the device of which is optimized for quick work with small workpieces. With this tool, you can cut a small metal canvas to the desired dimensions, spend a little effort on it.
Technical equipment of equipment
Again, the design and its characteristics are determined by the type of the particular model. If we talk about machines, then their device is represented by a supporting platform, a working table, an electric motor, a clamping mechanism, and also cutting knives, which are set in motion after the activation of the power plant. Significantly different guillotine scissors for metal hand type. They also have two knives, one of which even remains stationary during operation, but the principle of operation is based on muscular effort. The latter models also provide auxiliary mechanisms for sheet feeding and positioning. With the help of such devices, the operator can more accurately organize the processing of metal with different parameters.
Main characteristics of guillotine shears
Performance is the main criterion for the selection of guillotine shears. One of the main parameters is the effort with which the equipment and, in particular, the knife acts on the workpiece. Thus, the average value for the power load in machine models is on the order of 5-7 kg / mm 2 . Next, the width and thickness with which the guillotine shears work are taken into account. The characteristics of the machine tool allow cutting sheets with a thickness of 0.5 to 3 mm. At the hand tool this indicator rarely exceeds 2 mm. It is important in the working process and the width of the cut. Depending on the model, this value can vary from an average of 1000 to 1500 mm. The frequency of operations affects the overall productivity of the guillotine and is usually about 60 cuts per minute.
The operational capabilities of the guillotine machine are directly determined by the potential of the power plant, which provides the function of the knives. To begin with, it is necessary to subdivide the machines into models operating from the network for 220 and 380 V. Power is the main indicator of the capacity of the unit and is usually 3-4 kW. This potential makes it possible to confidently cope with thick sheets at a high frequency. By the way, the torque at which the hydraulic guillotine shears work, can be 1200-1500 rpm. It is important to note the dependence of the electric motor on the design. So, the wider the possibilities of cutting, the higher the power potential of the drive.
Technical characteristics of a manual guillotine for metal
The segment of hand guillotine for working with metal basically represents aggregates of the saber type. At the heart of their design is a small panel or platform that holds the base, and directly cuts the movable knife. As already noted, guillotine scissors with a manual principle of operation can serve sheets of thickness up to 2 mm. As a rule, in the case of stainless steel, this figure is 1.5-1.7 mm. However, aluminum sheets can be cut with such a tool and with a thickness exceeding 2 mm. True, the length of cutting is still much inferior to full-fledged machines - in standard families, the maximum reaches 1300 mm. On the other hand, such models benefit from compact dimensions and a small mass that rarely exceeds 100 kg. Accordingly, the manual guillotine can be transported through the work site to different points in the execution of assembly operations, which simplifies the production and construction process.
Consumables and accessories
In addition to the guillotine equipment, manufacturers offer sets of processing tools, personal protective equipment and adjusting equipment. From the point of view of performing the main cutting operation, it is important to have at hand qualitative diamond profiles that are most often used for locksmith operations with metal, as well as tiled products and glass. These devices will help if the main work produces guillotine shears, not allowing you to get a neat cut. In other words, the hooks will make the edge more qualitative and even. Also for the adjustment of guillotine machines, it is necessary to provide sets of corresponding keys. Usually, for this purpose, an all-metal fence is used. As for personal protective equipment, they must be equipped with an electrical machine operator. The basic set includes: gloves, a filter half-mask, glasses and noisy headphones.
Without fail, maintenance personnel should check the reliability of fastening the moving parts of the machine, the quality of fixing the frame, the correct location of the platform and the desktop. A correctly installed and adjusted machine will ensure that the cutting is performed with high accuracy and without deviations from the technical specification. Special attention is paid to the electric motor, which drives the guillotine shears and in some models is responsible for the automatic feeding of sheets. Check the condition of the oil, cooling systems and carbon brushes if they are available. Masters pay attention to the beam mechanisms that participate in the transmission of torque. Couplings and gears must be in optimum working order, otherwise the function of the carver will simply not be carried out.
Reviews of manufacturers
The segment of the guillotine equipment is not so common as more technological and at the same time expensive machines for high-precision metal cutting. Nevertheless, there is a choice. In particular, in the domestic market, these products are represented by Stalex, Enkor, MetalMaster, etc. Under the Stalex brand, machines that deal with hard grades of steel are good in quality. This is largely due to the use of high-quality high-carbon cutters in the design of machine tools. In addition, the welded construction increases the reliability of the installation as a whole, so the repair of the Stalex guillotine scissors is postponed. As the users themselves note, only the mechanism of sheet pressing and the system of limiting the depth of material supply will have to be subjected to recovery after a long time of operation. As for the models from the firms "Encore" and MetalMaster, they are mainly represented by manual saber cutters with a simple design and convenient control mechanism. The only problem with the operation of such tools is the shortage of replacement knives, which owners often complain about.
The main advantage, due to which mechanical torches are still in demand, is a combination of reliability, ease of handling and reasonable price. According to these indices, guillotine sheet scissors noticeably surpass the alternative equipment, made using modern technologies. But there are also drawbacks in the guillotine plane, which should be taken into account when choosing it. First of all it concerns the quality of cutting. The fact is that an even and neat cut can provide only some models of manual modifications - and then, provided certain skills are available to the user. Machine versions are for the most part oriented to mass processing of large volumes of sheet metal, but it is not worthwhile to count on providing them with a smooth edge.