Mixers (low speed drills). The best impact drills

The low-speed drill belongs to the category of professional construction tools. Due to the small number of revolutions and huge power, such an apparatus is used for mixing concrete and drilling large diameter holes in solid materials.

A low-speed drill is designed to work in cases where a large torque on the tool is strictly contraindicated. Such cases include:

thread cutting;
mixing mixtures;
drilling large holes;
pipe flaring.

Pipe expanding is a process of pipe deformation, during which a hermetic connection between the pipe and the tube sheet is created.

When the amount of work is large enough, due to the small torque and high power, such a drill does not overheat. Performing such work with a conventional tool can lead not only to overheating, but also to burn out the engine. Since slow-speed drills are quite heavy, they are usually equipped with two handles.

Main characteristics

A low-speed drill has the following main characteristics:

tool power - from 900 W to 1600 W;
the number of revolutions per minute - 400-650 rpm;
weight - 3-4.5 kg;
the number of operating modes - 1-3;
drilling diameter - up to 28 mm.

A low-speed drill is capable of withstanding heavy loads for a long amount of time. Due to these qualities, it is used for bulk work.

Mixing glue with a low-speed drill

All drills should be divided by type of expected load.

Lightweight devices - for interior fine finishing. Average power 700-1000 watts.
Heavy machines - for large construction work. Average power 1000-1500 watts.

When choosing a new tool, you should carefully consider the process of selecting the necessary characteristics. The higher the power, the higher the weight of the device and, accordingly, the price.

Separately, it is worth mentioning the professional drill-mixer tool, which combines the functions of a low-speed drill and a mixer for mixing viscous solutions. As a rule, such models belong to the high price category.

Due to the presence of a variety of nozzles, high power and an operating mode switch, such a tool is able to perform both shock work on drilling concrete walls and other solid structures, and mix various mixtures.

When choosing a powerful low-speed drill, you should also pay attention to its weight and maximum drilling diameter.

An important selection criterion is the availability of modern electronics on drill mixers. In addition to the obvious convenience and safety, having the ability to change operating modes will allow you to extend the life of your equipment. Some models are equipped pressure sensor on the start button. The stronger the pressure on the button, the greater the number of revolutions the device begins to issue. This is also true for the reverse situation.

The main advantages of tools equipped with an electronic system include:

convenience;
security;
increased service life;
overload protection.

How to choose a nozzle

If for some reason a nozzle was missing from the device, it is important to know how to choose it correctly. Most models have a special standard thread on the spindle, which allows you to securely fix the nozzle. This standard has been adopted by many major manufacturers and, at the moment, it is not difficult to find the right nozzle.

Many models are equipped movable coupling with self-clamping mechanism. A key for such tools is not required, and the diameter of the drill or agitator can be selected independently using the information specified in the instruction manual.

Movable coupling with self-locking mechanism

The maximum nozzle size is set by the manufacturer. This indicator depends on the technical characteristics of the device.

Manufacturers Overview

There is a wide variety of low-speed professional drills on the market today. Consider the most popular manufacturers and some instrument models.

BISON

Russian company specializing in the production of construction tools. Thanks to a reliable design, a wide range of models and relatively low price, the devices of this manufacturer are in great demand in the Russian market.

Drill mixer ZUBR ZDM-1200

The most popular model: ZUBR ZDM-1200.

tool power - 1200 watts;
torque - up to 850;
weight - 4.5 kg;
class is professional.

Makita

A Japanese company that was able to conquer the market for building tools with high quality and long service life. Due to the high technical characteristics, the tools of this brand are perfect for for professionals which expect to use the equipment for quite a long time.

The most popular model: Makita 6014 BR.

tool power - 850 watts;
torque - 550;
weight - 2.5 kg;
maximum nozzle diameter - 16 mm;
class - household.

STURM

Equipment made in China. In the model range there are tools, both low and high price categories. As a rule, tools of this brand have smaller dimensions and weight, with relatively the same technical characteristics. Devices of this brand can be a great helper for both professionals and amateurs.

Drill mixer Sturm ID20131

Interskol

This company has its own production factory in Russia. This allows you to reduce the cost of transporting equipment and thereby reduce prices. Tools are different good basic equipment: a wide variety of nozzles, additional handles, etc.

Drill Interskol D-16/1050R

The most popular model: Interskol D-16.

tool power - 1050 watts;
torque - up to 550;
weight - 3.8 kg;
maximum nozzle diameter - 16 mm;
class is professional.

2Danmos:

K-hmm ... And who said that repair is a professional use of a tool, and drilling a hole for fastening a chain on a door is "for a home, for a family"?

I gave you an example of a universal tool with two components...

You have a strange opinion about the time and preferences of the "home craftsman". Why did you suddenly decide that a pro can quickly and conveniently do the job, and if you are an amateur once a year, you must definitely practice sadomasochism, raping the instrument and everyone around you along the way?
It has already been said about the operating modes of the tool in production (not to be confused with the pros) and at home.

By instrument:
- Well, do not buy you a screwdriver in its purest form. Buy
drill / screwdriver (battery - they are almost all of them) or a network mounting drill (there is no torque setting and a clutch, which is not so important for your criteria and mode of operation).

Any drill will die - if it is not used for its intended purpose. Who told you that an 800 watt drill cannot be raped with ordinary drilling in the same way as a 600 watt one?
In addition to arms, you also need to have a head on your shoulders, and in this head there are a few convolutions. If you know that the drill will not pull such a diameter at a time, then no one bothers to make a hundred small holes along the desired contour without straining the tool?

> About the ceiling: it's not about convenience, but about the strength of the slab and the need to drill one single hole exactly where you need it, without spoiling the appearance of the ceiling, since everything is in plain sight and cannot be glued with wallpaper later. What if a 600 watt drill hits a granite stone in a slab? I, hanging a ceiling cornice a few years ago, encountered this situation. It took two or three victorious drills and an hour and a half of stubbornness. And this is with a hole diameter of 6 mm.

Do you seriously think that by changing the drill from 600 to 800 watts you will make this vile stone faster? :)))

IMHO, you're still confusing something.
The tool still cannot be completely universal and for all occasions. Every universality comes to an end sometime. And the sooner the versatility of one tool ends, the better for him and for you.

Yes, you can, in many cases, do without a perforator. But do not get stuck on its purely slotting functions - this is not a jackhammer. You also need to consider where you live. For example, in a brick or wooden house, you hardly need perf ... But in a concrete one, it is required much more often.
In addition, a hammer drill (with an adapter) does an excellent job with drilling large (more than 6 mm) diameters and generally with a large load, and with a replaceable cartridge, you generally have 2 absolutely full-fledged tools in one.
And a small drill is convenient for screwdriving and work in inconvenient places where your 800-watt monster simply won’t crawl.

Now my thoughts are spinning like this - but what the hell in a concrete city you need a powerful drill if it can be replaced with a puncher. Indeed, in all respects, perf wins over derli - you can drill, hammer better than a drill, you can twist screws, you can interfere with solutions. What else? Yes, that's the price of only a perf with a replaceable cartridge more than 1.5 times more than a similar drill. And if the vyazt is not with a replaceable, but with an adapter? That difference turns out to be a penny. (this is if the drill and punch are branded)
Small diameters remained - well, it’s inconvenient to do with a powerful drill, or with a punch. And from here it turns out that you still need a small drill.

Of all the types of power tools, electric drills are perhaps the most popular: indeed, at home you can safely do without an angle grinder or emery, but everyone needs to drill at least one hole a year. Well, in stores you can find a drill for every taste: an inexpensive one is also suitable, if you plan to use it from time to time, there is also a professional tool for working “for all the money”. In addition, many models of drills are universal: multi-speed gearboxes allow you to work with a drill as a screwdriver, impact couplings - to drill brick and concrete as an ersatz puncher, some drills with a specific grip can also be used as a mixer for stirring the same tile adhesive, if you start repair. A purchase with a balanced price-quality ratio will not hit the family budget, but it will always help out.

When choosing a drill, be sure to consider the intended specifics of the work. For example, there are very few drills that are not specifically designed to work as mixer, are able to actually withstand prolonged stirring of the solution, both the engine and the speed controller are overloaded. So the risk of burning a new purchase, especially when it comes to inexpensive drills, is quite large. To confidently take on such a job, we will definitely need low speed gearbox, which will allow the motor to reach normal speed, effectively cooling at the same time (do not forget that for centrifugal impellers, the performance is proportional to the square of the speed). But here drill small diameter with a low-speed gearbox is already uncomfortable. So, it makes sense to look at drills with multi-speed gearboxes: they will drill as it should, and they will scroll the mixer nozzle, and they will cope with self-tapping screws for “one or two”.

Speaking of budget drills, you should definitely stop at reducer device: for a quality drill, it is necessary to install both the motor rotor and both sides of the spindle on rolling bearings, no bushings. Even if the gearbox is plastic, made in one piece with the body, but the bearings in it must be mandatory.

Do you need impact clutch in the gearbox? If you only need to occasionally drill brick or concrete, then it won’t hurt: with a good drill, an impact drill will save only in “Stalin”, where bricks are sometimes taken hard with a puncher. For continuous work, of course, a hammer drill will be a much better choice, not only because of performance, but also because of significantly lower levels of vibration and noise, and impact drills wear out quickly in such conditions, turning into shockless ones when the clutch teeth wear out.