It is impossible to saw a tree with a grinder: the master will tell you why the grinder twitches and heats up

The grinder or angle grinder is a popular home craftsman's tool. Good for cutting metal and other materials. In addition to cutting, you can grind, polish and grind. The tool is quite compact, convenient to store in a workshop, garage. You can buy and use different attachments.

Some people think that there is no limit to the work of a grinder. All building materials can be cut. But skilled builders will prefer other tools to the grinder.

For example, for cutting corrugated board, it is better to use an electric shear, a circular saw or a jigsaw. When cutting a profiled sheet in the place of the cut, the metal is heated and zinc is burned out. Hot sparks fly in all directions and spoil the protective coating.

Why you can't cut wood with a grinder

Many problems arise if you work with angle grinders on wood. Many will say: “So there are special discs! So you can cut it with a grinder ”. Of course, there are different ones on sale, but in practice, when working with a tool on wood, breakdowns or disastrous consequences may occur.

Most saw blades are not designed for high tool speeds. But few people pay attention to this. And if only a Bulgarian is at hand, they try to get the job done. Someone else removes the protective cover to see better.

When you work with metal with a grinder, the probability of clamping is negligible. If you cut a log or a bar, then the disc will be clamped so in the tree that it will be difficult to pull it out. Such a nuisance may happen: the instrument will be pulled out of the hands, the disc will break, small fragments will fly off, etc. Always clamps the disc when cutting a tree. Wood is a natural, heterogeneous material. Together, hard and soft fibers, knots, resin.

There are special discs (chain). They are designed so that if the chain is biting, the grinder is not pulled out of the hands. Such nozzles are used for removing bark, sampling a cup in a log. However, such disks cost a lot.

Another new grinder disc is tungsten carbide. They say that it is convenient for them to cut wood, they do not "bite". This is the safest wood drive for a grinder. It is really expensive - about 700-900 rubles. Such a disk is resistant to overheating. The waste from such a disk is small (dust).

Experts say that in no case should you work with a wood grinder. Even though there are such special discs. It is better not to use a grinder for wood at all and here's why.

If you don't believe me, try sawing a tree with a tool about 30-50 minutes (even outdoors), and then disassemble and see what's inside.

The fan inside creates an air flow to cool the electric motor. He then and is the reason, because it sucks in the sawdust flying from the circle. Small shavings, sawdust clog the fan. Chips cannot escape through the hole in the fan.

The sound during operation becomes more dull. As a result, Bulgarian when working, it can simply turn off or work intermittently. The engine will quickly burn out from overheating. Chips can further damage the motor winding or rotor. Therefore, in order not to burn the grinder, do not cut wood with it.