Metal saw is a fairly popular tool among craftsmen who are engaged in construction and repair work. This equipment is presented in different types, each model has a specific purpose, but is suitable for home use.
Which circular saw to choose
The circular saw for metals is a modern and powerful analogue of a hand tool. This equipment is convenient, light in weight and highly manoeuvrable. Some models can process the canvas not from the end, but from any place on the sheet. Such units can work at an angle, which allows you to cut metal at the required angle. The circular metal cut-off saw allows the operator to control the load on the tool, preventing the unit from overheating.
During operation, the operator can adjust the required speed, which manual models cannot boast of. The electric saw is equipped with a built-in engine blocking and motor braking system, which guarantees safety when changing blades when they areare out of order. Some models of such tools have special outlets to which you can connect a vacuum cleaner. These saws are less manoeuvrable, but they last longer because the risk of failure is reduced.
Makita Circular Saw
If you often have to cut stainless steel, pipes, and various profiles, then you can choose the Makita 4131 disc model, which will be able to cope with alloys and non-ferrous metals. When compared with conventional angle grinders, such equipment has many advantages, among them: higher productivity, no sparks, and no heating of the material.
It is impossible not to highlight the high resource of the cutting disc, as well as the absence of dust emission. The master with the help of such a tool has the ability to cut the metal into a bevel.
Circular saw by Evolution
The Evolution 230 Extreme metal saw is able to handle a sheet up to 12 millimeters thick. With its help, as in the case described above, you can cut the pipe, as well as the metal profile. In this case, the first version of the product can have a wall thickness of up to 4 millimeters. On sale you can find the Hilti SCM 22-A 3.3 ACS model, which is also successfully used for cutting sheet metal and metal profiles. The equipment will be able to handle profiles up to 57 millimeters thick.
If we compare this model with an angle grinder, then the productivity of the first one will be 4 times greater. The weight of the unit is 4 kilograms, and the battery charge will be enough for 50 cutting approaches of the mounting profile.
Conclusion
The above comparison of circular saws indicates that the latest model has more performance. However, if you prefer products from the most popular manufacturers, then you can choose the first or last saw. You will have to pay 39,900 rubles for the third option.
Which band saw to choose for metal
If you prefer band saws, then you can choose a model not only by quality characteristics and manufacturer, but also by cost. For example, a band saw for metal Jet 349V costs 48,500 rubles. The length of the saw blade is 1440 millimeters, it can be cut at an angle of 45 to 60 degrees. The equipment is powered by a 220 volt network, the power of the device is 1100 watts. It will be possible to work by using the equipment in one of two speeds. There is no cooling function, and the maximum size of a rectangular blank can be 125x76 millimeters.
If you prefer the Makita manufacturer, a band saw from this company can also be purchased by you in the store. For comparison, the Makita 2107 FK model is much cheaper than the one described above. The price of the equipment is 23,900 rubles. The power of the unit is 710 watts,the maximum workpiece diameter can be equivalent to 120 millimeters. The saw blade size is 1140x13x0.5 millimeters. The number of speeds, as in the model described above, is also two. Weight - 5, 7 kilograms, no cooling. Of the two models of band saws, the latter is chosen by consumers much more often due to its lower cost and light weight. If you need to perform household tasks, it is recommended to choose a Makita saw.
When to choose a pendulum saw
The Bosch GCO 2000 metal saw is a pendulum type equipment. Its consumers choose more often than those described above for the reason that it costs much less. Its price is 17500 rubles. But price is not the only factor that affects popularity among buyers. Considering the positive features, we can highlight the high power, which exceeds the above analogues and is 2000 watts. The device weighs 19.3 kilograms, but such a significant weight does not reduce the comfort of use.
Safety is ensured by limiting the starting current, which is expressed in soft start. The equipment is universal, as it can be used for cutting metal, ceramics, plastic and stone. Suitable saw for industrial and private use. A distinctive feature is the durability of the engine, as well as a clean cut and the most even cutting.
Make your own pendulum saw
If you do not want to spend money on the purchase of the equipment described above, the pendulum saw fordo-it-yourself metal can be done without much effort. To do this, you need to prepare a single-phase electric motor, the power of which is 340 watts. A three-phase type AOL 21-2 is also suitable, its power is 400 watts. The transmission of rotation to the spindle will be carried out by a V-belt borrowed from the GAZ-24 car.
The back frame of a square section will act as the basis of the tool, to which the spindle body should be welded, while on the other side the plate for mounting the engine is strengthened. A 1/2-inch pipe should be passed through the groove in the frame, which will act as the swing axis of the saw. When carrying out welding work, make sure that the axis of the motor shaft, the swing axis of the saw and the spindle shafts are parallel. After completion of welding work, the frame should be straightened, the seams cleaned and painted with nitro enamel, after pre-priming the surface.
When a homemade metal saw is being constructed, the abrasive disc casing and belt casing should be made of 2 mm steel sheet. The blanks are welded from the inside with a fillet weld. The belt guard should be screwed to the frame and motor, and the drive handle should be on the removable belt guard cover. When creating a saw for metals, the spindle bearings must be packed with grease before assembly. Felt rings are installed in the groove of the bearings, which must first be impregnated with liquid lubricant.
Conclusion
In the assembled tool, the engine mustoutweigh the spindle, located below, otherwise, when the saw is turned on, the abrasive will hit the workpiece, which will cause breakage. When working with such a tool, you must follow the safety regulations. The cable must be protected from mechanical damage by a flexible steel hose. It can be borrowed from the shower hose.
The electric motor and the saw itself must be grounded, and the working tool must be fixed on the shaft with a left-handed nut. The operation of the tool must be carried out after the master puts on goggles. It is important to prepare the workplace before cutting, it must be cleared of foreign objects, and the tool itself must be secured from falling. This is the only way to avoid injury.
