Rotation speed
The rotation speed of the nozzle or mixing container provided by a plaster mixers.
High rotation speed devices work best with paints, varnishes and glues.
Low rotation speed models do a good job of preparing thick mixtures. Many modern plaster mixers and mixer-drills support the ability to adjust the speed (see "Features"), which allows user to choose the most optimal mode for a particular mixture. Powerful tools especially need a rotation under heavy load support system.
Max. mixing paddle diameter
The vast majority of attachments for construction mixers have a standard size in length, usually 600 mm. But their diameter may differ, its maximum size is limited by the manufacturer, which must be considered when choosing. The indicator depends on the technical characteristics of the tool. The most popular sizes are
120mm,
140mm and
160mm nozzles. The larger the diameter of the auger, the easier it can cope with a large volume of mixed mixture.
Spindle internal thread
The type of internal thread of the spindle determines the possibility of using one or another nozzle with the tool. Also pay attention to the "Type of cartridge" (see below). Most construction mixers today have a metric thread on the spindle for attaching nozzles:
M12,
M14,
M18,
M20,
M24, but there are also spindles with
⅝” inch internal threads.
Chuck type
The chuck type determines the mechanism by which the attachment is attached to the construction mixer and by which the energy of the tool is transferred to the work area. Nozzles with different types of fastening are not interchangeable.
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Key. One of the simplest and most reliable solutions, well suited for tough jobs. The nozzle is fixed in the cartridge using a special key, and after work it is removed with the same key that is included in the package. Even if you fill the junction with glue, the nozzle is still easy to remove with a wrench and improvised tools. But this process can become problematic if you lose the key. Due to the great popularity of this mechanism, the user can use nozzles from different manufacturers.
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Quick release. Models of this type use the FastFix (QuickFix) quick-clamping clamp, due to which the drill is fastened without the use of additional tools. This allows you to quickly change the tooling without much effort, the user does not need to resort to the help of any improvised tools, hand effort is enough. A simple and convenient solution, but some experts consider it not the best option for heavy work.
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Morse taper and key. The attachment of the nozzle of these tools has a special tapered shank that is inserted into the tapered hole of the spindle. The main advantage is high centering accuracy. Most often used in
...mixer drills, but not very popular.Chuck diameter
This parameter determines the possibility of using nozzles of different diameters with the tool. Usually, the larger the diameter of the chuck, the more different nozzles are supported by the plaster mixer.
Max. wood drilling diameter
Refers to models that the user can also use as a conventional drill for drilling wood or metal. The parameter characterizes the largest diameter of holes that can be made using a tool. Here it should be taken into account that some modern mixers allow you to install drills of a much larger diameter than indicated by the manufacturer, and, theoretically, make a larger hole. But the larger the diameter, the higher the resistance of the material and, accordingly, the power of the device should be large. Using the tool on off-design loads is fraught with breakdowns.
Max. steel drilling diameter
The maximum diameter of a hole that can be made with a particular construction mixer or mixer drill when drilling steel. See "Maximum wood drilling diameter.
Functions
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Soft start. This function allows you to avoid a sharp start of the engine at the beginning of work, which, on the one hand, allows you to avoid overloads on the power supply network, and on the other hand, splashing of building mixtures.
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Speed controller. The ability to adjust the speed of rotation of the nozzle of the working tool will be very useful for working with mixtures of different consistency. As you know, for effective mixing of liquid materials, a high speed is required, and for viscous materials, a lower speed, but a higher torque.
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Maintain momentum. With the help of special sensors, the speed control system monitors changes in load and, depending on this, increases or decreases the speed of the nozzle, thus maintaining the speed set by the user, regardless of the load. This ensures more efficient and better mixing and extends the life of the device.
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Power button lock. Locking the power button when the tool is off allows you to avoid accidental start in abnormal mode, which increases the safety of the device. And vice versa: locking when the tool is on eliminates the need to constantly keep your finger on the power button, which is very convenient, especially during long work.
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Electronic engine protection. The system provides automatic shut
...down of the engine in case of overheating, jamming of the nozzle, or simply in case of a critical increase in load, which helps to avoid tool failure and extend its service life.
— Brushless motor. The presence of a brushless (brushless) motor in an electric tool. Such motors are noticeably superior to traditional collector motors in terms of efficiency, which can significantly reduce energy consumption without sacrificing power; this is especially important for cordless tools (see "Power Source"), where this feature is predominantly found. In addition, brushless motors are quieter and produce virtually no sparks during operation, making them perfect for working in high fire hazard environments. Their main disadvantages are traditional — the complexity of the design and high price.In box
— Charger. A device for charging the batteries used in the instrument with the appropriate power supply. For models supplied with such a device, the specefications may specify the charger model. This information can be useful not only for finding a spare or replacement charger, but also in case when there are other battery tools and/or batteries for them in the household. The fact is that many manufacturers nowadays use universal batteries compatible with a whole set of tools from the same brand; so, for example, a charger for a mixer may be quite suitable for a battery grinder from the same manufacturer.
On the other hand, a lot of modern battery tools are supplied without a charger at all. This option will be optimal, first of all, if a compatible charger is already available, and there is simply no need to overpay for a second device. In addition, the lack of a charger will be appreciated by those who want to choose this accessory separately, without relying on the manufacturer's decision.
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D-shaped handle. An additional handle in the shape of the letter D is provided for in the design of the device. It is found mainly in small and relatively light mixer drills, which can be used to create holes in wood or metal. Allows user to fix the position of the tool more firmly during operation.
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Hand protection. A small, usually metal frame is provided around the handle of the tool, wh
...ich helps to avoids damage to the user's hands during operation. It is used mainly in powerful, performant construction mixers. It is not found in small drill mixers, since it is practically useless there.
— Mixing attachment. The tool is initially equipped with a mixing attachment. Its availability, on the one hand, allows you to get to work immediately after purchase, instead of looking for and buying an attachment separately, and on the other — not to worry about the compatibility of the tool and the attachment.
— Mixing container. The equipment of this tool initially provides a special container for mixing building mortar and other mixtures. Usually we are talking about professional stationary mixers, primarily designed to perform large-scale construction work.
— Case/pouch. Some construction mixers are equipped with special cases or covers for the convenience of storing and carrying both the device itself and its components, such as attachments or a key.
Note that the above list is not complete — other additional items may be supplied with modern tools