Perforators "Energomash": selection and operation

An impact machine that punches a hole is what we used to call a hammer drill. This tool is ideal for both professional and home use.

Using such a device, you can perform the following operations:

• making holes in hard materials: concrete wall, brick;
• creating a trench for electrical wiring;
• removing and knocking down old tiles or plaster.

In order to choose exactly the tool that will last for many years, will be convenient and necessary to use, you need to define several parameters. One of them is a type of hammer drill as a percussion mechanism.

The impact mechanism can be electromechanical and electro-pneumatic.

The electromechanical mechanism is driven by the impact of the drill on the core, the longitudinal movement is carried out thanks to two electromagnetic coils.

New and modern electro-pneumatic mechanisms are divided into two types:

• with rolling bearing;
• with a crank mechanism.

Here, as in any pneumatics, the mechanism moves thanks to the air pressure, which is created using a movable piston.

Another important parameter is the intended use of the tool. If it is required for everyday household work, the performance of the tool may be small. If you plan to use the tool often and for a long time, then it is best to pay attention to the characteristics and select a high quality tool.

• It is important to determine the number and type of modes of use of the tool - several modes will be enough for domestic use. The most necessary and basic mode is drilling. Also, the hammer can be turned off in the hammer, it can crush, drill, or, conversely, perform the function of a jackhammer.
• First of all, the speed and quality of work depends on the power. For household work, a power of 0.8 to 1.9 kW is required.

• The impact energy affects the quality and running time. For example, 2 to 8 Joules for home use, 8 to 27 Joules for professionals.
• The number or frequency of impacts is another important characteristic that should not be neglected if you plan to use the tool for a long time. Hammer drill manufacturers often compensate for the low power in household tools with the number of blows. For example, in light models this figure can be 7 thousand beats per minute, in heavy versions - no more than 3500.
• The type of chuck in electro-pneumatic models is SDS-plus (holes up to 2.5 cm, household chuck) or SDS-max (up to 20 mm, professional).
• The location of the motor can be straight or L-shaped. The latter options are heavy and massive, while having great performance.

This name is popular for Russian-speaking users, so the brand has taken root in Russia.Choosing Energomash, users prefer the German quality of a reliable manufacturer.

• Perforators SDS MAX "Energomash PE-2520M". This model has a weight of 19 kg, more intended for long-term and professional use. Has a power of 2000 W, impact energy - 27 J, impact frequency - 1900 beats. / min., speed - 320 rpm. / min. The gift includes a case (storage case).

• Rotary hammers SDS Plus. The SDS Plus tool "Energomash PE-2591P" is a good and inexpensive option for household use. Power - 900 W, productivity - 1100 rpm. / min., impact energy - 3 J, frequency - 4500 beats per minute. Its weight is only 2 kg 650 g.

In addition to the case, the complex includes 3 SDS + drills, an additional adjustable handle with a depth gauge, graphite brushes, a chisel and lubricant.

Basically, this model is chosen because of its low price, light weight and sufficient equipment with drills.

The main disadvantages of the tool are its long hole performance and rapid overheating.

• Perforator SDS Plus "Energomash PE-2509BZ". Power - 900 V, productivity - 780 rpm, impact energy - 3 J, frequency - 4300 beats per minute. The device weighs 5.4 kg. Complete set: handle, case, 3 SDS-plus drills, SDS + lance nozzle, chisel.

The advantages of this model are the quick change of nozzles, the setting of the crushing angle and the good complete set.

Among the shortcomings, it is worth noting that the tool is not durable - it is not suitable for active use. According to buyers, this is due to the fact that non-shock-resistant plastic is used in the manufacture, due to which the structure quickly fails.

• Perforator SDS Plus "Energomash PE-25500" - weak, but the most popular model among rock drills of this brand. Power - 600 W, productivity - 850 rpm. / min., impact energy - 2.3 J, frequency - 3900 beats per minute. The weight of the device is 3.2 kg. The set includes 3 SDS + drills, a side handle that is adjustable and has a depth gauge, graphite brushes, a chisel and lubricant.

In general, the brand lives up to its expectations. The main thing is to decide on the purpose of the perforator and, based on this, select the optimal model. Thus, the Energomash perforator can rightfully be among the household power tools.

For information on which puncher to choose, see the next video.