Most of the hammer drills on the construction tool market use the mains or batteries as a power source. Both categories have their pronounced advantages and disadvantages, but in terms of the organization of the workflow, they have for the most part similar features. The pneumatic perforator is fundamentally different, which uses compressor equipment as a traction source. At first glance, this approach to energy supply may seem excessively troublesome, but this tool has significant positive aspects.
Design features of the pneumatic perforator
The basis for the formation of the technical base of the apparatus is still a traditional impact drill that performs the tasks of crushing and drilling with oscillatory pulses. But unlike electricalperforators, such models have a completely redesigned power infrastructure, adjusted for the use of compressed air as an energy source. In this regard, the set of main structural and functional units looks like this:
- Casing having an air supply hole with a plug-in cylinder.
- A ratchet wheel that enables the interaction of the shock action with torque.
- Air ducts through which compressed air is directed.
- Air distribution chamber.
- Piston with cylinder for reciprocating motion.
- Chuck for installing the nozzle.
- A device for supplying water under pressure to cool the heated working parts of the tool.
Depending on the overall form factor, small-sized stationary and portable pneumatic rock drills can be distinguished. The second category forms the basis of the segment - these are manual models that are operated on weight without special support.
Pneumoperforator specifications
Among the main design and performance indicators, the following should be noted:
- Impact energy. The range of values is quite wide. Entry-level models provide an impact load of 5-10 J, which is enough to destroy small wall structures and partitions. However, constant work with hard rock, asph alt or frozen ground requires a connectionhigh performance technology. These tools include the Russian pneumatic puncher PP-54. Its impact force is 54 J, which is indicated in the title, but there is also a younger version of 36 J.
- Volume of discharged air. For machines with high impact energy, the air mixture flow rate is approximately 3600 l / min, but this value may vary depending on the current requirements for the operation being performed.
- Engine power. Not all pneumatic models are provided with engines, but such a configuration is also found. The average power of power plants for pneumatic perforators is 700-1200 W.
- Mass. It is far from always that high performance and power justifies itself precisely because of the large size and heavy weight of a tool with such a working potential. Small-sized manual models weigh no more than 5 kg and may well be used on weight for a long time, but the massive productive version is used with an inclination according to the principle of a road jackhammer, while having a mass of 10-15 to 30-35 kg.
Features of operation of the pneumatic rotary hammer
The main difference between the working process of a pneumatic hammer drill and conventional impact drills is the need to connect a compressor unit. This nuance limits the scope of the tool, but at the same time allows you to achieve high power. From the compressor, through a special fitting or other connecting equipment, a compressed air supply hose is connected to the nozzledevice. By the way, Bosch pneumatic rotary hammers are provided with a fitting for connecting the 1 / 4F format, and a compressor hose nipple is supplied with them.
Positive feedback from tool users
Users of air hammers appreciate their reliability and performance, which leads to high efficiency in various dismantling operations. There are also benefits from an economic point of view. The simplification of the tool design facilitates and generally minimizes maintenance costs, while the optimization of energy consumption reduces electricity costs. And this is not to mention laudatory reviews about the ergonomics of the pneumatic rotary hammer, which has much more modest dimensions and weight compared to conventional impact drills and jackhammers.
Negative reviews about pneumoperforators
It is possible to work with the tool only if it is possible to connect a compressor. If we are talking about working remotely, then we will have to provide for special transport for transporting equipment. This is the main criticism from the users of this tool. Adding to that is the wiring hassle, as not all compressors are universally compatible with handheld pneumatic rock drills without special adapters.
Conclusion
Purchase a pneumoperforator to perform standard household activities related towith the destruction of structures in a house or apartment, it is impractical, since a network impact drill will perform the same work with less organizational effort. Ergonomics will also not be of particular importance, since for one-time events the discount on weight and size is insensitive. But with regular work at construction sites, in road maintenance or in industry, a pneumatic hammer will quite logically take its place. There will be no problems with finding a suitable compressor unit in these areas, as well as with its transportation. But the very technique of performing complex and responsible operations of chiselling, drilling and digging with the help of a powerful compressed air apparatus will make it possible to save the performer's strength and extend the working session.
