In the industrial world, where every second counts and every gram of raw material has economic and environmental value, precise material dosing is a strategic necessity. Far from being merely an intermediate step in the production chain, the dosing process defines the quality of the final product, the energy efficiency of the system and the overall sustainability of operations.
According to a study by consultancy firm McKinsey, a 10% improvement in dosing accuracy can result in a reduction of up to 20% in raw material waste. This not only represents significant cost savings, but also directly contributes to reducing the industry’s environmental footprint.
In sectors such as structural ceramics, food processing, the chemical industry or biomass processing, these systems become even more critical. From clays and additives in brick manufacturing to active ingredients in chemical formulations or the dosing of wood chips for biomass boilers, the success of the final product depends directly on the precision of the feeding system.
Why does precise dosing make the difference?
In production environments, dosing errors are one of the main causes of:
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Defective mixtures
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Unnecessary rework
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Product waste
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Additional energy and economic costs
A report by the European Powder Metallurgy Association reveals that in industries processing bulk solids, dosing errors can represent between 5% and 15% of total production costs if not properly controlled.
Correct dosing makes it possible to:
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Obtain homogeneous mixtures
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Reduce waste and raw material overconsumption
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Guarantee final product quality
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Minimise batch-to-batch variations
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Improve process control and traceability
Key technologies: hoppers, rotary valves and load cells
Feeding hoppers
Hoppers are temporary storage units that allow material to be discharged in a controlled manner. They are essential to ensure a continuous and consistent flow to the next stage of the process.
In the structural ceramics industry, they are used to feed mixers with dry clay, sands or additives.
They can be equipped with vibrators, agitators or fluidisation systems to facilitate the flow of cohesive or poorly flowing materials.
Rotary valves
These valves, also known as rotary feeders, allow precise control of the amount of material transferred from one compartment to another without altering the internal pressure of the system.
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Particularly useful in powder-based processes, such as ceramic spray-dried materials
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Reduce leakage losses and improve the safety of closed systems
Load cells
Essential elements of gravimetric systems, load cells allow real-time measurement of the weight of the dosed material.
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In automated lines, they are integrated with PLCs or SCADA systems to correct deviations
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In sectors such as food or pharmaceuticals, they ensure traceability and compliance with standards such as IFS, BRC or GMP
Types of dosing according to application
Volumetric dosing
Based on material volume, without considering actual weight. Suitable for materials with constant bulk density.
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Accuracy: medium
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Advantages: low cost, ideal for low-sensitivity products
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Example: aggregate feeding in ceramic block moulding
Gravimetric dosing
Based on the exact weight of the material. It can operate in loss-in-weight or gain-in-weight mode.
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Accuracy: high (±0.25% to ±1%)
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Advantages: ideal for critical or high-value formulations
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Example: dosing of chemical additives or ceramic pigments
Vibratory systems
Ideal for fragile materials or those with poor flowability. They use vibration to control the flow rate without damaging the product.
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Accuracy: medium
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Advantages: no moving parts in direct contact with the material
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Example: feeding spray-dried material to presses or extruders
Real applications by sector
Structural ceramics industry
Use: dosing of dry clay, non-plastic materials or pigments for bricks and roof tiles.
Objective: homogeneous mixtures and energy efficiency during drying and firing.
Chemical industry
Use: formulation of compounds requiring a high degree of precision.
Objective: maintain exact proportions to prevent unwanted reactions or loss of effectiveness.
Biomass and renewable energy
Use: dosing of pellets, wood chips or vegetable flours in industrial boilers.
Objective: ensure stable combustion, prevent blockages and optimise heat transfer.
Food industry
Use: addition of active ingredients or flavourings.
Objective: ensure regulatory compliance and consistent organoleptic quality.
Economic and environmental impact
Investing in appropriate dosing systems can deliver a return on investment (ROI) in less than 18 months, according to studies by the European Federation of Process Engineering.
In addition:
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Companies that have adopted gravimetric or automated systems have reduced product losses by between 8% and 20%, according to data from the Spanish Association of Industrial Engineering Companies (ANEI).
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Optimised dosing processes are estimated to save up to 12% in energy consumption by avoiding over-processing of incorrect or out-of-specification mixtures.
Precision and sustainability, hand in hand
In an environment where every technical decision impacts competitiveness, quality and sustainability, precise dosing becomes a strategic advantage. Whether through hoppers, rotary valves or load cells, and using volumetric, gravimetric or vibratory technologies, investing in precision is a reliable commitment to the future.
At IFAMAC, we design and implement tailor-made dosing solutions adapted to the real needs of each industry, using robust, efficient and scalable technology.