When construction or repair is carried out, a puncher acts as one of the most necessary tools. With the advent of this device, which is capable of undergoing significant loads, the masters began to work not only more comfortable, but also easier. On sale you can find punchers in a huge assortment, but before you purchase a particular model, it is recommended to think about what characteristics you should pay special attention to, because you will have to spend an impressive amount, because the pleasure can not be called cheap. In order for the choice to be correct, you need to familiarize yourself with the principle of the device and learn more about the design features.
Hitachi rock drill can have one or two modes. In the first case, we are talking about drilling, while in the second, the impact is also added. You can select a tool that can work in one of three modes, to the previous two in this case will be added chiselling. It is worth considering that the described devices are divided into light, medium and heavy. The former have a mass that does not exceed 4 kilograms, while medium ones can weigh up to 5 kilograms, but heavy devices can pull all 10 kilograms.
Impact Energy Characteristics
The Hitachi rock drill has a certain impact energy, which acts as one of the main parameters. Joules are used to measure these characteristics. In the lightest versions, the impact force does not exceed 2 joules. As for more serious instruments, they will be able to strike with a force of 15 joules. When the energy increases, the diameter of the hole is larger. If this parameter is small, then the device will not function more efficiently than a conventional drill, which has a shock function. The tool does not pierce, but simply drills holes. This indicates that the equipment will wear out soon, and there will be no talk of high productivity.
If you want to choose a Hitachi rock drill, given the impact energy, you must remember that this characteristic does not depend on the force with which the master will press on the handle. If we are talking about a percussion drill, then the situation will be the opposite. Experts do not advise choosing a tool whose impact energy exceeds 10 joules, as this can cause a rather rapid failure of the device. This is due to the fact that under significant loads refractory inserts will be destroyed after a short period of time.
Impact Frequency Characteristics
When choosing a Hitachi rock drill, you need to pay special attention to this parameter. If you calculate how many times in 1 minute the piston will hit the hammer, then you can get a value called the frequency of the impact. The performance of the tool depends on the frequency and energy of the impact. The mentioned provider has learned to successfully combine these two parameters.
Power characteristics
Hitachi rock drill , whose price is 7,500 rubles, is not as powerful a machine as an electric drill. This is due to the fact that drilling is harder for the master compared to when you have to drill. The shaft of the punch during operation does not imply a high speed of rotation. And units with different cartridges will have different power. Thus, SDS-Plus cartridges provide a tool whose power can vary from 400 to 800 watts. If we are talking about SDS-Max cartridges, then you have a tool, the power of which varies from 1 to 1.2 kilowatts.
Tool shape reviews
Hitachi rock drill, which can be repaired in a service workshop, can have a different shape, for example, straight or L-shaped. According to users, in the latter case, the engine will be located vertically, due to this the unit turns out to be more compact and convenient to use. Among other things, cooling the motor will be quite effective. Such devices can work for a long time, without overheating at the same time. As buyers emphasize, they serve for a long time. However, you must be prepared for the fact that their weight is quite impressive. If you want to choose a tool that weighs less, then you should pay attention to long and narrow punchers. Home craftsmen note that due to the design of the tool with the help of the unit, you can work in hard to reach places. The engine in this case is horizontal.
The presence of additional functionality
Hitachi rotary hammer, the repair of which will not be needed if the operation is carried out according to the recommendations provided by the manufacturer, may have additional functions. For example, a depth gauge is a very convenient addition, due to which it is possible to drill holes of certain parameters. If you often need to switch from a drill to a drill or vice versa, you will definitely need a tool that has a gear switching mechanism. This is due to the fact that these nozzles must move at certain speeds. Hitachi DH24PC3 rotary hammer, the most positive feedback on it, has reverse shaft rotation. This functionality helps out when the drill is in any hard surface. If you are especially afraid of overheating, you should choose a tool that has a soft start. With the help of this supplement, you can easily eliminate the troubles that promise the breakdown of the unit. As practice shows, a very useful function is frequency stabilization, which is responsible for the speed of rotation of the shaft.
What else needs to be known to the consumer
Hitachi DH24PC3 rotary hammer, parts for which you can find in service centers, has dust protection, since it is rarely possible to work in completely sterile conditions. This tool is chosen by those for whom the anti-vibration system is equally important. It helps to compensate and mitigate shaking of the unit during chiselling, drilling and drilling.
The aforementioned device also has a locking button, which is responsible for fixing the punch in operating mode.
Conclusion
Hitachi puncher, reviews of which you could read in the article, will cost a little more if it has additional functionality that similar devices do not have. Sometimes some functions are simply necessary for the performance of certain works, while in some cases they should be abandoned. The latter case is relevant for home craftsmen who rarely use the tool.