What is a perforator?
The hammer drill is the "first cousin" of the hammer drill because it performs similar functions. The main purpose of this tool is to drill holes. It does this with equal success in a variety of materials.
A characteristic feature of perforators is that they have an electropneumatic mechanism for providing the blows during drilling. Thus, their power does not depend so much on the pressure of the worker, which has two main advantages - the force of the blows of the perforators remains high, without requiring much human effort. Which in turn is a prerequisite for longer work and at the same time ensures greater productivity.
The popular wisdom that all good things cannot be gathered in one place also applies to this type of tool. Larger and heavier punches drill faster, but they also cause fatigue more easily during prolonged use.
The greater weight is due to the fact that the body of the hammer drills and the mechanism for transmitting movement from the electric motor to the drill are usually made of aluminum-magnesium alloys.
Technical characteristics of hammer drills
The power of the electric motor is one of the most important parameters when choosing a hammer drill, and in general, higher values mean faster drilling.
Most electric motors are of the classic type with carbon brushes, the condition of which needs to be checked periodically and replaced promptly if worn.
A convenience in this regard are hammer drills with an indicator that is activated when the brushes are worn but still usable.
There are also models with self-shutoff brushes that automatically block the operation of the perforator at a certain degree of wear.
The hammer drills are also equipped with an electronic unit for smooth adjustment of the chuck speed.
The minimum speed is used at the beginning of drilling any holes. The main purpose of the high speed is for drilling small diameter holes.
For the efficiency of working with hammer drills, their parameters related to the blows of the drill are of essential importance.
The frequency of impacts is given per minute and the higher it is, the smaller the particles of material removed, and accordingly the more precise the drilling.
The size of the particles is also directly related to the impact force, measured in joules (J). Logically, greater force means faster drilling (all other things being equal) and is characteristic of large and heavy hammer drills.
Among the undoubtedly important characteristics of any punch are also the possible diameters of the holes that can be drilled.
They are listed separately for concrete, steel and wood, and in rare cases - for non-ferrous metals.
Combating vibrations when working with a hammer drill
The impacts of the drilling tool are inevitably transmitted to the entire hammer drill, which is constantly vibrating.
These vibrations are not only unpleasant, but also cause faster onset of fatigue with all the consequences of this - weakening of attention and reduced working capacity.
In addition, daily prolonged use of perforators can lead to health damage.
All these reasons force manufacturers to constantly improve designs to reduce vibrations.
Among the measures taken is the attachment of the electric motor to the hammer drill body through a system of elastic elements.
Special attention is also paid to the handles, through which vibrations are transmitted to the worker.
They are usually made of rubber or other similar material and are connected to the housing by spring elements (so-called vibration handles).
What do we offer?
The technical specifications of the models are so different that you can't help but find what you need.
There is a great variety in parameters among all brands in the product group, which are BOSCH , MAKITA , SPARKY, RAIDER , BLACK & DECKER, DEWALT , SKIL and others.
The variability also affects prices, which vary widely but are competitive on the market.
RAIDER, for example, is also present in this product group with the RAIDER PRO brand, which has an optimal price-quality ratio.
More detailed information about the models and their extras can be found in their personal descriptions.
