Why are they needed and how do they work?
The first electronic puncher appeared in 1932. Bosch , which made many achievements and discoveries in this field, was released. At that time, perforators were used in industry and construction. But over time, they have found great application and "in the people."Many inhabitants may not see any difference between a perforator and a drill, but these tools are designed for different purposes.
The perforator is necessary for drilling holes in solid materials( concrete, stone), and the impact drill is used for drilling and chiselling in softer materials. Accordingly, in these two instruments, a blow is born in different ways. In the drill, the impact arises from the action of mechanics, and the impact force is controlled by the force of pressing the tool, while in the perforator the pneumatic mechanism generates a blow.
Tip! Choosing what to buy, a puncher or impact drill, explain to the specialist what you are going to do with the tool, he will tell you which machine will best suit your tasks.
Rotary hammers all the time develop, become more qualitative, more powerful, there was a tool with a battery, a perforator with a dust extractor and so on. Many manufacturers produce universal machines that can drill, chisel or drill with impact. Such universals are made for all cases of life and belong only to the light class - heavy tools do not have a drilling function.
Combat classes
Rotary hammers are divided into classes, which determine the capabilities and tasks of models. The main criterion is weight.
- Lightweight class - tool weight up to 4 kg. According to statistics, 80% of all punchers belong to the light class. This is due to the fact that these devices are light and versatile, which allows them to be used in everyday life by non-professionals. Their power - 400-700 W, impact energy - 3 J. The vacuum cleaner system they have, most often, passive.
They are designed for drilling small holes in concrete. In everyday life, they perfectly cope with the holes for the dowels. Also, some models can be used as a screwdriver. Light cars have a high number of revolutions and a number of strokes.
- Middle class - weight up to 5-8 kg. They have a decent impact force, up to 8 J, which makes it possible to work with reinforced structures, when necessary and to chisel concrete, and to cut metal parts. The vacuum cleaner at them happens both active, and passive.
- Heavy class - apparatus with a weight of more than 8 kg. Power is 1200-1500 watts, and they can drill holes in concrete and stone with a diameter of 40-50 millimeters solid drill and more than 120 millimeters hollow crowns. The dust collection function is mainly active, since the amount of garbage produced is very large, and passive systems can not remove such a high volume of dust qualitatively.
Affiliation with a particular class defines the layout of the device. Light cars have a motor located horizontally, and medium and heavy - vertically. This is due to the need to protect the instrument from destructive overloads. It also makes it more compact, which is important in cramped conditions. There are exceptions to the location of the engine. So, recently was released a powerful heavy-duty puncher with a longitudinal motor.
dust extraction system The perforators often deal with materials that, when chiselled, release a large amount of dust and abrasive particles. They adversely affect the tool and wear the trunk. To combat these factors, a dust trap for a perforator was invented.
They are divided into active and passive. The latter work by selecting the power from the engine. The active ones have a specially installed system with their own motor. This increases its efficiency by 100%, but such perforators are an order of magnitude higher. Naturally, the dust extraction system for the puncher is voluntary, someone considers it necessary, and someone prefers to save money. In active systems, garbage is collected in a container that can easily be emptied.
The vacuum cleaner is also used for dust control. For this purpose, special fasteners for the hose neck are made on the housing casing."Samodelkin" also came up with their own system for removing dust - a self-made casing. For this, a cut-off bottom of the plastic bottle is put on the perforator.
Note! Homemade plastic bottle casing is a proven time, a simple and easy way to remove dust.