{"id":2404,"date":"2026-07-09T07:29:57","date_gmt":"2026-07-09T07:29:57","guid":{"rendered":"https:\/\/eurocalder.com\/load-cells-silos-industrial-equipment\/"},"modified":"2026-10-16T07:30:52","modified_gmt":"2026-10-16T07:30:52","slug":"load-cells-silos-industrial-equipment","status":"publish","type":"post","link":"https:\/\/eurocalder.com\/en\/news\/load-cells-silos-industrial-equipment\/","title":{"rendered":"Load cells in silos, tanks and process equipment"},"content":{"rendered":"

A load cell<\/strong> is a sensor that converts the weight or force applied into a proportional electrical signal. In industry, it is integrated into weighing systems to monitor the contents of silos, tanks, hoppers and vessels, and to control industrial processes<\/a> such as dosing, filling and mixing in real time.<\/p>\n

This article explains what a load cell is, how it works, what types exist and, above all, how storage equipment should be designed so the weighing system operates accurately.<\/p>\n

What is a load cell?<\/h2>\n

A load cell is a transducer: it converts a mechanical force into a measurable electrical signal<\/strong>. That signal, processed by an indicator or a control system, is translated into a weight reading.<\/p>\n

Load cell, weighing cell and weight sensor: are they the same thing?<\/h3>\n

Load cell and weighing cell refer to the same component<\/strong>; load cell is the term most widely used in Spanish legal metrology standards. Weight sensor is a broader term covering different measurement technologies. This article treats load cell and weighing cell as synonyms, without separate content for either variant.<\/p>\n

How does a load cell work?<\/h2>\n

The load cell deforms minimally and in proportion to the force applied. That deformation is measured using strain gauges bonded to the metal body of the sensor, usually connected in a Wheatstone bridge. The bridge converts the change in electrical resistance into a signal proportional to the weight<\/strong>, which an indicator or a control system converts into a weight reading.<\/p>\n

Components of an industrial weighing system<\/h2>\n

A complete weighing system is not just the load cell. The following table sets out each element and its function.<\/p>\n\n\n\n\n\n\n\n\n\n
Element<\/strong><\/td>\nFunction<\/strong><\/td>\n<\/tr>\n
Load cell<\/td>\nConverts force or weight into an electrical signal<\/td>\n<\/tr>\n
Weighing module<\/td>\nIntegrates the cell with supports, plates and mounting fittings<\/td>\n<\/tr>\n
Junction box<\/td>\nCombines the signals from several cells into a single reading<\/td>\n<\/tr>\n
Indicator or transmitter<\/td>\nConverts the signal into a weight reading<\/td>\n<\/tr>\n
Control system (PLC)<\/td>\nUses the weight data for inventory, dosing or alarms<\/td>\n<\/tr>\n
Equipment structure<\/td>\nTransmits the load to the measuring points<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Main types of load cells<\/h2>\n

Not all cell types are suited to industrial storage equipment. These are the most relevant for silos, tanks and vessels.<\/p>\n

Compression and column<\/h3>\n

These are the most common in silos, vessels and large-capacity equipment<\/strong> resting on legs or supports. Column or pendulum types are used for high loads, typical of weighing systems for large-volume tanks or silos.<\/p>\n

Shear and bending<\/h3>\n

Shear cells are used in platforms and hoppers<\/strong>; bending cells, in lower-capacity equipment<\/strong>.<\/p>\n

Tension<\/h3>\n

These are used in suspended vessels or hanging equipment<\/strong>, where the force acts by tension.<\/p>\n

Digital<\/h3>\n

These simplify diagnostics, data transmission and integration with automation and quality control systems<\/strong>.<\/p>\n

How load cells are integrated into silos and vessels<\/h2>\n

The total weight of the equipment is calculated by adding up the readings of all the cells distributed under its supports<\/strong>. The number, location and size of the cells depend on the geometry of the vessel and its centre of gravity. The principle is the same as an industrial scale, applied on a larger scale to a steel structure.<\/p>\n

Weighing a silo, a hopper and a vessel is not the same<\/strong>: a silo stores bulk product and its weight varies with compaction; a hopper directs the discharge to the next stage of the process and requires more dynamic readings; a liquid vessel requires the effect of rigid pipe connections on the measurement to be taken into account.<\/p>\n

At Eurocalder we manufacture silos<\/a> with an integrated weighing system, with the cells positioned from the equipment design stage, and we apply the same approach to the construction of industrial silos and vessels and tanks<\/a> requiring inventory control.<\/p>\n

Several factors affect measurement accuracy<\/strong>: thermal expansion of the structure, lateral forces transmitted by rigid pipework connected to the vessel, vibration produced by agitators or ancillary equipment, the effect of wind on outdoor installations, and the levelling of the supports and the distribution of the load between them.<\/p>\n

A pipe connection that is too rigid can introduce horizontal forces that affect the system’s reading<\/strong>. That is why the mechanical integration must be resolved from the design stage of the process equipment<\/a>, not added afterwards to an already-built structure.<\/p>\n

Industrial applications of load cell weighing<\/h2>\n