At the industrial level the term “blending” refers to the process of combining a set of ingredients in the correct proportion to obtain a desired final product. In 99% of cases mixing the right quantities in the right proportion is crucial to obtaining a product with desired characteristics.
Failing proportions means product qualities other than those desired such as changes in color, texture, reactivity, viscosity, strength and a host of other crucial characteristics. In the worst case scenario, not mixing the different ingredients in the right proportions means losing several kilos or tons of raw material and the delay in serving the product to customers. In industries such as food and pharmaceuticals, strict control of ingredient proportions is critical to avoid health risks to consumers. At Airpes we design precise and high capacity load cells for tare product mixing tanks. Our load cells are present in the chemical industry, food industry, construction and in any sector that prepares mixtures of products.
Fast and efficient mixes
An efficient load cell must be able to detect weight changes quickly and effectively. In addition, the margin of error must be low enough for mixtures to be made with the exact proportions needed by the customer and the industry. The advantage of precise load cells, together with a fast and convenient reading system (if desired also wireless), is that the dosing of the products that make up the mixture can be done inside the same mixing tank without having to do it for each ingredient separately.
Types of load cells according to their sensitivity
The sensitivities of the load cells are divided into different denominations according to the precision offered by that cell. The denominations, from less to more precise, are as follows:
D1 – C1 – C2 – C3 – C3MR – C4 – C5 – C6
At the lower end of the scale are D1 type cells, commonly used in the construction industry for weighing concrete, sand, etc.
From type C3 onwards, these are cells for construction additives and industrial processes. The most precise C3MR cells and the C5 and C6 cells are reserved for weighing and taring high-precision tanks and scales.
Compression Load Cells
The most common type of load cell for mixing tanks and floor-mounted storage silos are compression load cells. There are also other types of load cells that work by bending, torsion and traction. For example, for heavy industrial weighing scales (which measure weight by lifting the load in the air), traction load cells are mostly used.
As for the compression models, in Airpes we have several designs of load cells to compression, that are the following ones.
Each of the above cells offers different weighing and taring characteristics and capacities, from 750 kg to 200 Tons, and with sensitivities up to 0.1%.