by Van Aarsen, the Netherlands


There is a rapidly increasing demand for tailor-made feed. It challenges feed manufacturers to dose an ever-increasing number of different ingredients in small quantities. Van Aarsen International helps to optimise the fine dosing process via the application of specialised small, micro, and precision ingredient dosing systems.

These systems allow producers to accurately dose a large number of vitamins, minerals, and additives without any loss of quality, speed and production capacity.


Dosing a large range of micro-ingredients

The addition of micro-ingredients in animal feeds demands the highest possible precision in order to realise the desired effect for each animal in each phase of the animal's life.

Adding too much results in wasting precious ingredients and adding too little results in suboptimal performance. Many feed manufacturers are faced with the challenge of having to produce formulas with an increasingly diverse range of micro-ingredients, each with their specific properties such as sticky, dusty, aggressive and abrasive.

Production capacity can then quickly become a bottleneck, as sequential weighing and dosing of multiple micro-ingredients with traditional systems takes a lot of time.

Van Aarsen offers a combination of small, micro, and precision ingredient dosing as a solution for achieving:

  • Optimum accuracy
  • No product spoilage
  • No human mistakes
  • High production speed
  • Continuity in case of personnel changes
  • A safe work environment (prevent danger for human health due to hazardous components)


Hygienic and accurate dosing technology for precious micro-ingredients

The first step in finding an optimum fine dosing solution is to analyse the recipes of the production location in question. Then, Van Aarsen calculates the best combination of dosing systems to realise optimum accuracy for all components in combination with the highest possible production speed.

The final design proposal is based on an integrated system of individual dosing units, consisting of a combination of micro-dosing (up to 20 or 50kg) and small dosing (up to 75, 100, or 200kg), with each dosing system being able to dose eight different ingredients. A precision dosing system (up to 1kg) can also be integrated into the micro-dosing unit.


Increased speed as a result of simultaneously weighing several ingredients

The combination of several individual dosing units allows producers to simultaneously weigh out several micro-ingredients, thereby speeding up the entire weighing and dosing process.

For example, a combination of two dosing units can handle a maximum range of 16 (2 x 8) ingredients and weigh up to two times faster.

For example – for reaching the stated accuracy:

  • In the case of 10 batches-per-hour the batching time is six minutes – which allows eight components-per-unit to be dosed. By applying two dosing units the batch time can be reduced to three minutes – enabling the feed miller to produce 20 batches-per-hour.
  • In the case of 15 batches-per-hour the batching time is four minutes – which allows five-to-six components per unit to be dosed. By applying two dosing units 10-12 components can be dosed in the same time.


Designed with attention to detail

The dosing systems supplied by Van Aarsen are designed as closed systems in order to prevent any loss or contamination of ingredients. The product cells can be fitted with a stirring device for difficult flowing ingredients.

Dosing slides with V-shaped openings allow for very accurate dosing as speed and rate of opening can be adapted to the specific ingredient.


Dosing of micro-ingredients in practice

Figure One demonstrates some common ingredients and additives with their specific properties which are accurately dosed with Van Aarsen's small, micro and precision ingredient dosing systems.


Compact design allows for easy integration into new and existing production lines

The combination of small, micro, and precision ingredient dosing enables Van Aarsen to integrate three different dosing systems into one production process. This provides users with significant benefits in terms of optimum flexibility, accuracy, and speed.

Van Aarsen's high-capacity dosing system also has a very compact design (1.60 x 1.60 x 2.10m) and can therefore easily be integrated into new as well as existing production lines.

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