The MCPI Fine dosing® SPA micro feeders are designed for the precise dosing of powders and granules by weight. Linked to precise scales that control 3 flow rates, the micro-feeder can achieve accuracies to within +/- 1 mg, and short dosing times. 

A large range of products : 

4 levels of precision  -  2 different designs - 2 types of realisation.

4  levels of precision for the scales:

     Class     Weighing resolution of the scales Min. quantity (estimation) Max quantity (estimation)

For batch feeding of dry materials

A    100 mg   > 10 g  ~ 20 kg
2A        10 mg    > 250 mg ~ 500 g
3A           1 mg   > 100 mg ~ 100 g
4A         0.1 mg    > 20 mg ~ 10 g


2 possible configurations for the micro-feeders:

To offer the possibility of integrating these micro-feeders on automated lines, or to obtain simpler systems.

Dosing in a weighed rotating bowl : feeding is performed in "hidden time", during manipulation of the packing. Direct dosing in the packing laid on the balance.

2 types of realisation: "Hygienic" or "industrial"

Problematics in terms of cleanliness and hygiene are not similar to all industries. We propose for industrial process applications, a more economical and less sophisticated design, but still easy to clean.

"Hygienic" design according the definition of EHEDG (European Hygienic Engineering and Design Group):


  • Simple design rules
  • Easy access to all machine surfaces for cleaning, disinfection and inspection
  • Eliminating hidden areas where deposits and biofilm can accumulate
  • All surfaces in contact with the material are "FDA" conform .

"Industrial" design

  •      Identical levels of performance to hygienic dispensers.
  •      Ease of cleaning
  •      Surfaces are not always polished, depend on  process requirements.
  •      Supports in painted steel
  •      Economical solutions, with a good value for money


 Case studies

"Click" to see case studies

Measuring grade of the scales


100 mg 


10 mg 


1-2 mg   

4 A

0.1 mg

   • Direct feeding in the packing
   • Feeding in a weighed swiveling bowl
   • Integration on automatic lines

Download "Highest accuracy for the smallest dosage"

More applications/ data sheets:

Discover the micro feeders of high accuracy

4A Class: resolution of the load cell:  0.1 mg

Download "Micro feeders of high accuracy"


Technical advantages

You will appreciate:

  • The Accuracy and stability
  • The short dosing time,
  • The compactness,
  • The reliability,
  • The flexibility,
  • The safe design for the operators
  • and construction based on hygienic standards...
  • The intuitive and user friendly operation of the weighing controllers,

MCPI Fine dosing® micro feeders are probably the first on the market to reach such levels of excellence, the main reasons are:

  • A feeding system with high dynamic of operation
  • A high ratio between coarse and fine feedings. This is essential to perform both fast dosing processing and high precision.
  • A reduced and stable overshoot.


MCPI Fine dosing® exclusivities:

MCPI weighing controllers for an easier operation and a better processing control

MCPI Fine dosing®:  an exclusive and patented technology, for the highest level of performance .

References and experiences in difficult applications

More about : Accurate 4A class micro feeders   

Avalaible with hygienic design and ATEX IID

 MCPI Fine dosing® SPA technology was rewarded at

POWTECH Nurneberg Germany, 2009

Feeders with turn table
en savoir plus

Micro feeders of high accuracy

en savoir plus

Applications of micro feeders... en savoir plus
Selection criteria en savoir plus
 Weighing controller en savoir plus

en savoir plus

 Download en savoir plus
 Fine dosing principle en savoir plus
Competence center en savoir plus
 Contact en savoir plus

Web site in German

 Micro feeder in operation.












































© 2022 MCPI. All Rights Reserved.