Concrete Vibrator

When pouring foundations, columns and other reinforced concrete structures, voids appear in the concrete mass, the presence of which negatively affects the quality of the resulting monolith. With the advent of special vibrators for concrete on the market, the solution to this issue has turned into another simple technological stage - vibration compaction of a concrete mixture. In this article, we will compare the 10 best concrete vibrators in the price range from 4 to 78 thousand rubles. Already from the name it is obvious that the main task of these devices is to transmit vibration to the concrete mass in order to equalize its density throughout the entire working volume of the formwork. Before talking about the device and the principle of operation, it is worth mentioning two types of vibrators for concrete: deep (submersible) and surface (external, site). Despite the same goals pursued, they are designed and work slightly differently. Deep vibrators are immersed in the concrete mix. They consist of a drive, a flexible shaft protected by power armor, and a vibrating tip (mac Concrete Vibrator e). The drive creates a torque that is transmitted to the handpiece through the flexible shaft. The tip is an elongated sealed structure with a core and a slider inside. The movement of the slider along the core ensures the creation of high-frequency vibration. External vibrators do not come into contact with concrete, but act on the mixture through the formwork elements on which they are mounted. The design of such units also assumes the presence of a drive, in which the so-called unbalances are mounted on the rotor. Asymmetric forces generated by their rotation lead to the appearance of vibration transmitted to the base on which the surface vibrator is installed. As a rule, its use is resorted to only in those cases when submersible devices are not suitable due to the high density of reinforcement laying or the small size of the cast structure. To begin with, consider the general characteristics that are relevant when choosing both deep and site devices. The most popular solution since you can work with such devices in almost any conditions, including in closed rooms. They are inferior to models with a gasoline (diesel) drive in terms of power and autonomy. Powerful industrial vibrators with a high degree of mobility. The use of a compressor is relevant for the most part in the conditions of precast concrete factories. up to 2000 W. Household or for local use in construction. Lightweight, portable, affordable. 2000-4000 watts. They are adapted for permanent use when pouring reinforced concrete products and monolithic construction, designed for long-term operation. up to 3.5 thousand vibrations / min. Due to their low frequency and high vibration amplitude, they are adapted to work with slow-moving coarse-grained types of concrete. from 3.5 to 10 thousand vibrations / min. The most versatile option if work is carried out with concrete of varying degrees of mobility. more than 10 thousand vib / min. Differs in high frequency and low vibration amplitude, due to which it is the optimal solution for moving fine-grained concrete. This parameter is largely determined by the scope of application of the units and depends on their power. The mass of portable devices for household use usually does not exceed 5-6 kg, while industrial equipment can reach a mass of 100 kg. Now let's try to figure out the peculiarities of choosing deep-type devices. They are the most popular solution for pouring reinforced concrete structures. https://jiji.ug/kampala/power-equipments/concrete-vibrator-dJI5D4oVLokXKbCcDmx94iiR.html