Saw for metals 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 working at home.
Which circular saw is worth choosing
Circular saw for metals is a modern and powerful analogue of a hand tool. This equipment is convenient, has low weight and high maneuverability. Some models can process the canvas not from the end, but from anywhere on the sheet. Such units can work at an angle, which allows you to cut metal at the required angle. Circular cutting saw for metal allows control of the load on the tool from the side of the master, preventing overheating of the unit.
During operation, the operator can adjust the required speed of rotation, which manual models are not capable of boasting. The electric saw is equipped with a built-in engine blocking system and engine braking, which guarantees safety when replacing disks when they fail. Some models of such tools have special taps to which you can connect a vacuum cleaner. The maneuverability of such saws is lower, but they serve further for the reason that the risk of malfunctions is reduced.
Circular saw from "Makita"
If you often have to cut stainless steel, pipes, as well as various profiles, then you can choose the Makita 4131 disk model, which will be able to cope with alloys and non-ferrous metals. If we compare with conventional angle grinders, such equipment has many advantages, among them: higher productivity, the absence of sparks and the exclusion of heating of the material.
One cannot fail to single out 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 from Evolution
The Evolution 230 Extreme metal saw is capable of handling sheet thicknesses up to 12 millimeters. With its help, as in the case described above, it is possible to cut a pipe, as well as a metal profile. The first version of the product may 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. The 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 performance 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.
Video: Metal Band Saw Which to Choose
Which band saw to choose for metal
If you prefer band saws, then you can choose a model not only in terms of quality and manufacturer, but also in cost. For example, a Jet 349V band saw for metal costs 48,500 rubles. The length of the saw tape is 1440 millimeters, cuts are possible at an angle of 45 to 60 degrees. The equipment operates on 220 volt mains, the device’s power is 1100 watts. It will be possible to work by using the equipment at one of two speeds. There is no cooling function, and the maximum size of a rectangular workpiece can be 125×76 millimeters.
When to choose a pendulum saw
The Bosch GCO 2000 metal saw is a pendulum type equipment. Its consumers more often choose the 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 distinguish high power, which exceeds the above analogs and amounts to 2000 watts. The device weighs 19.3 kilograms, but such a significant mass does not reduce the comfort of use.
Safety is ensured by limiting the inrush current, which is expressed in a 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.
Making a pendulum saw yourself
If you do not want to spend money on acquiring the equipment described above, a pendulum saw for metal with your own hands can be performed without much effort. To do this, you need to prepare a single-phase electric motor, the power of which is 340 watts. The three-phase type AOL 21-2 is also suitable, its power is 400 watts. The rotation will be transmitted to the spindle by a V-belt, borrowed from the GAZ-24.
The backbone 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 hand the plate for mounting the motor is fixed. A 1/2 inch pipe should be passed through the groove in the frame, which will play the role of the saw’s swing axis. 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 completing the welding work, the frame should be uncoated, the seams should be cleaned and painted with nitro enamel, having previously primed the surface.
When a home-made saw for metal is designed, the casing of the abrasive disk and the casing of the belt should be made of sheet 2 mm steel. Workpieces are welded from the inside with a fillet weld. The belt cover should be fixed with screws to the frame and the engine, and the drive handle should be on the removable cover of the belt cover. When a saw is created for metals, spindle bearings must be filled with grease before assembly. Felt rings are installed in the groove of the bearings, which must first be soaked in liquid lubricant.
At the assembled tool, the motor should outweigh the spindle, being located from below, otherwise at the moment of switching on the saw the abrasive will hit the workpiece, which will cause breakage. When working with such a tool, the safety instructions must be observed. The cable must be protected against mechanical damage by a flexible steel hose. 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 on the shaft with a nut with a left-hand thread. Operation of the tool must be carried out after the master puts on safety glasses. 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. This is the only way to eliminate injuries.