Principles of a hammer
A jackhammer is a tool with a powerful impact force. The impact energy is the main characteristic of any such tool. It is considered to be the number of strokes that are produced per minute, as well as the energy generated per minute. The device of a jackhammer is not complicated. The actuator drives a striker, which is located inside the casing.
He sends mechanical impulses to the instrument's execution organ - a peak that performs rapid reciprocating movements( of the order of 1000-1500 beats per minute), and thereby destroys the necessary material. Note! The released energy is very rough, and when working on the operator there is strong vibration and noise, so it is necessary to use all protective measures.
Let's consider in more detail how an electric jackhammer works. The electric motor forces the rotor to move, which, in turn, is driven by a striker, which sends a mechanical motion to the peak. Despite all the popularity of this type of instrument, it has several disadvantages: due to the sparking of the electric motor it can not be used in rooms with increased fire danger. Also, the drawbacks can be attributed to the dependence on the power supply network.
What is most important when choosing?
The principle of the hammer is understandable, now it is necessary to understand what role the peak plays and the weight of the instrument when choosing. There are different types of peak that apply to certain types of work. Consider them:
- Pica-crowbar - is necessary for loosening the soil, dismantling concrete and brick structures, removing the old pavement and working with rocks;
- Shovel - used for chipping ice and equalizing the edge of the asphalt;
- Chisel - necessary for cutting various materials.
The weight of the hammer also plays an important role. It determines to which class the tool will belong. They are divided into light, medium and heavy. Lightweight, its weight is 5-6 kilograms, it is needed for finishing works and works at height. The average hammer, weight 5-10 kg, is used for work in a horizontal plane. Heavy hammer by weight can reach up to 30 kilograms and it is used for foundation and soil works.
Important! Before choosing a jackhammer, you need to clearly define the type of work that it will perform.
Electric jackhammer: choose for your needs
About a jackhammer, as it works and about the scope, we talked. Now it's time to find out how to choose a jackhammer. There are several types of hammers: electric, pneumatic and gasoline. The drawbacks of the electric tool have been mentioned above, but it also has a huge plus - it's a lot of power with a small weight.
Pneumatic apparatus has no shortcomings in electrical. They differ by turbine and volumetric. The volumetric tool works as a result of expansion of compressed air in pistons, and turbine by means of action of streams of air on the turbine. Volumetric devices are used for operation in high humidity conditions, and their disadvantage is the need to connect a compressor.
Petrol hammer is devoid of many disadvantages of previous vehicles. Its main advantage lies in their independence from power sources. Disadvantages can be considered carbon dioxide emissions and high fuel costs. In addition to the type of apparatus, it is still necessary to take into account its power, the number of beats per minute. Important! It is necessary to choose a tool with high-quality vibration protection and comfortable handles.