Principle of hopper scales
Hopper scales consist of multiple load cells and a display unit. The number of load cells is determined by the number of feet of the silo, which is normally 3 or 4. The individual load cells are placed on the feet and connected through a junction box with the other feet and the display unit. In most cases, they are pre-calibrated prior to shipping. Depending on the chosen control and display unit, several hopper scales can be combined into a single system for easy mixing of different raw materials.
Applications of hopper scales
Hopper scales are extremely versatile and can be used for all commodities stored in large-scale containers. They are primarily in operation in industrial plants where large quantities of raw materials need to be managed and weighed. As several hopper scales can be combined, operators can control and perform all mixing processes by means of such weighing systems. Hopper scales are also used where goods are transferred to vehicles, as exact quantities can be transferred to the respective containers, doing away with subsequent vehicle weighing.