Saw on metals: how to choose?

Saw on metals is a fairly popular tool among masters who deal with construction and repair work. This equipment is presented in different types, each model has a specific purpose, but it is suitable for working at home.

What type of saw blade should I choose

The circular metal saw is a modern and powerful analog of a hand tool. This equipment is convenient, has low weight and high maneuverability. Some models can handle the canvas not from the butt, but from any place on the sheet. Such units can work at an incline, which allows to saw the metal at the required angle. Disk saws for metal allow monitoring of load on the tool from the master, preventing overheating of the unit.

During operation, the operator can adjust the required speed of rotation, than the manual models can not boast of. The electric saw is equipped with an integrated system for blocking the motor and braking the motor, which guarantees safety when replacing the discs when they fail. Some models of similar tools have special bends to which you can connect a vacuum cleaner. The maneuverability of such saws is lower, but they serve further because the risk of malfunctions is reduced.

Circular saw from Makita

If you often have to cut stainless steel, pipes, and various profiles, you can choose the disk model Makita 4131, which will be able to cope with alloys and non-ferrous metals. If you compare with conventional angle grinders, then such equipment has many advantages, among them: higher productivity, no sparks and exclusion of material heating.

It is impossible not to distinguish between the high service life of the cutting blade and the absence of dust emission. The master with the help of such a tool has the ability to cut the metal on the bevel.

The saw blade from Evolution

The saw on metals of mark Evolution 230 Extreme is capable to cope with the sheet, which thickness reaches 12 millimeters. With its help, as in the above-described case, it is possible to cut the pipe, as well as the metal profile. The first version of the product can have a wall thickness of up to 4 millimeters. On sale you can find the model Hilti SCM 22-A 3.3 ACS, which is also successfully used for cutting sheet metal and metal profiles. Equipment will be able to overpower the profile, the thickness of which reaches 57 millimeters.

If we compare this model with an angle grinder, then the productivity of the first will be 4 times greater. The weight of the unit is 4 kilograms, and the battery charge will be enough for 50 approaches of cutting the mounting profile.

Conclusion

The above comparative characteristics of circular saws indicate that the latest model is more productive. However, if you prefer the goods of the most popular manufacturers, then you can choose the first or last saw. Pay for the third option will have 39,900 rubles.

What kind of band saw to choose for metal

If you prefer the band saws, you can choose a model not only for quality characteristics and the manufacturer, but also for the cost. For example, band saw for metal Jet 349V costs 48500 rubles. The length of the saw band is 1440 millimeters, the saw is possible at an angle of 45 to 60 degrees. The equipment operates from a 220-volt mains supply, the device's power is 1100 watts. You can work by using equipment in one of two speeds. The cooling function is not available, and the maximum size of the rectangular workpiece can be 125x76 mm.

If you prefer the manufacturer Makita, a tape-type saw from this company can also be purchased by you in the store. For comparison, the Makita 2107 FK is much cheaper than the above. The price of equipment is 23,900 rubles. The aggregate's power is 710 watts, the maximum diameter of the workpiece can be equivalent to 120 millimeters. The size of the saw band is 1140x13x0.5 mm. The number of speeds, as in the above-described model, is also two. Weight - 5.7 kilograms, there is no cooling. Of the two models of band saws, the last consumers are chosen much more often because of lower cost and low weight. If you need to perform tasks in the home, it is recommended to choose a Makita saw.

When to choose a pendulum saw

Saw for metal Bosch GCO 2000 is a pendulum type equipment. Its consumers choose more often than the above described for the reason that it costs much less. Its price is 17500 rubles. But price is not the only factor that influences popularity among buyers. Considering the positive features, it is possible to single out a high power that exceeds the above analogs and is 2000 W. The device weighs 19.3 kilograms, but such a significant mass does not reduce the comfort of use.

Safety is provided by limiting the starting current, which is expressed in a smooth 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 longevity of the engine, as well as clean cutting and maximally even cutting.

Making a pendulum saw by yourself

If you do not want to spend money on the acquisition of the equipment described above, a metal swivel saw with its own hands can be performed without much effort. To do this, you need to prepare a single-phase electric motor, whose power is 340 watts. Suitable and three-phase type AOL 21-2, its power is 400 watts. Transfer of rotation to the spindle will be made by a V-belt, borrowed from the GAZ-24.

As the basis of the tool will be a spindle frame of a square section to which the spindle body should be welded, while on the other side the plate for mounting the motor is strengthened. Through the groove in the frame, you should skip a 1/2-inch pipe, which will play the role of the swing axis of the saw. When carrying out welding work, make sure that the axis of the motor shaft, the swivel axis of the saw and the spindle shafts are parallel. After completion of welding, the frame should be turned off, the seams cleaned and painted with nitro-enamel, pre-priming the surface.

When a homemade metal saw is constructed, the casing of the abrasive disc and the belt casing should be made of 2 mm steel sheet. The blanks are welded from the inside by a corner seam. The belt casing should be fixed with screws to the frame and engine, and the drive handle must be on the removable cover of the belt casing. When a metal saw is created, the spindle bearings must be filled with grease before assembly. Felt rings are installed in the groove of the bearings, which must first be impregnated with a liquid lubricant.

Conclusion

At the assembled tool, the engine should outweigh the spindle from the bottom, otherwise when the saw is turned on, the abrasive will strike against the workpiece, which will cause a breakdown. When working with such a tool, observe the safety rules. The cable must be protected from mechanical damage by a flexible hose made of steel. It can be borrowed from a shower hose.

The electric motor and the saw itself must be grounded, and the working tool must be fixed to the shaft with a nut with a left-hand thread. The operation of the tool must be carried out after the master wears protective goggles. It is important to prepare the workplace before cutting, it must be cleaned of foreign objects, and the tool itself must be protected from falling. Only this way it will be possible to exclude injuries.