Batching machines can be divided into several categories according to the model and type of components, as well as the ability to move and other parameters.
1- portable or mobile batching device
This type of batching machine can be easily moved and usually they have wheels in their lower part and they can be moved by trailer. One of the advantages of this type of batching machine can be mentioned It showed that, firstly, they do not occupy much space and are suitable for urban environments, and secondly, for projects that require concrete for a short period of time, and from an economic point of view, installing a batching machine along with its foundations is not economical, but one of the The disadvantages of this type of batching machine are low production volume per hour and mixer capacity.
2- Stationary batching device
As the name of this category of batching device shows, it can be carried and moved They are not fast, and moving them requires disassembly from the current location and assembling them at the new location, which is sometimes a time-consuming process, but this type of batching device does not have speed and volume limitations like the mobile model, and they have more variety. .
Second category in terms of type of material loading
1- Linearbin batching device:
In this type of batching machine, metal tanks of materials are used for loading and weighing materials, which materials are weighed cumulatively on a conveyor belt, and then the materials are lighted This conveyor belt is directed into the lifting system (bucket or conveyor belt), the material tanks can be charged by the loader or truck, and usually a linear push ramp is used to ease the operation of filling the tanks in the new designs of the device. Batching is often used in this type of system. Among the merits of this system, it does not require a dedicated operator, and the operator of the batching machine system can also control it from inside the steering room. The number of tanks is selected according to the needs of customers and consumers. 2- Dragline batching machine:
In this type of batching machine, the rake is connected to a canvas (approximately 13 meters long) by a towing wire, which collects the materials behind the walls of the batching machine by using the projectile of this rake, and the weighing operation is usually done inside the material lifting bucket. It is possible that it is a weighing scale. One of the disadvantages of this system is the need for a separate operator to control it, and it also creates safety risks for people who are in the area around this system.
The third category in terms of type of mixer
1- Twin shaft mixer
The mixer used in this type of batching machine has two parallel and horizontal shafts, which usually has the ability to produce all kinds of concrete. On each of the shafts, according to the length of the shaft, a number of arms are placed at the end. These arms are placed on a nail. In the small sizes of this type of mixer, one motor is used for driving power, but in larger sizes, usually 2.5 cubic meters and above, two motors are used (one motor for each shaft), of course, in both gearbox modes. Both shafts are coupled together. The homogeneity of the materials in this type of mixer is high. 2- Single shaft mixer In the mixer used in this model, as its name suggests, a horizontal shaft is used, but its shape is different from twin shaft mixer shafts, and instead of an arm, a sheet is wrapped around the shaft in the shape of a crescent or a spiral, which nails are placed on it. This type of mixer is suitable for the production of fresh concrete, but the degree of homogeneity is not as high as single shaft mixers, and it is not recommended for high capacity mixers. 3- Pan mixer In this type of axial mixer on which the arms and nails are placed vertically, this type of mixer is also suitable for wet concrete and is mostly used in block making. It doesn't work well in large-grained concrete such as RCC used in dams, and usually the discharge valve from the mixer has high wear. 4- Continuous mixer This type of mixer is different from other mixers that produce concrete batch by batch (that is, each time we weigh a certain amount of materials and pour them into the mixer, and after the mixing time is over, we empty it) this type of mixer It continuously produces concrete, that is, materials, cement, water and other materials enter this mixer from one side with a specific rhythm and the mixed concrete is continuously discharged from the other side. These types of mixers have a spiral shaft which, when rotating simultaneously, mixes the concrete and transfers it to the output side of the mixer.
Fourth category in terms of dry and wet concrete capability
1- Dry batching In this type of batching machine, all parts are designed in such a way that the machine has the ability to mix and load materials with low amount of water (usually zero slump) and also the machine should be designed in such a way that it has the ability to load materials with sizes has the highest.
2- batching b>
This type of batching machine is much more common and almost all batching machines have the ability to produce more concrete. High amount of water in the concrete compresses the pressure. Usually, in this type of concrete, the materials of Oriyaz are not used. 3- Wet and dry batching at the same time
This type of batching machine has the ability to produce all types of concrete, both wet and dry, and usually they use twin shaft mixers. It is used and they are usually used in the construction of dams and roads, and they are also used to produce ordinary concrete to equip the workshop.
Fifth category in terms of the material transfer system into the mixer
1- Bhakti