Powder micro-dosing system

Pharmaceutical powders in metered doses demand maximum filling precision. This is particularly challenging with materials in the micro-gram range. Fine powders may exhibit complex behaviors that develop into a bottleneck in the production line.

High precision multiple powder dosing in the mg range

┬ÁPTS from Dec Group is a patented technology offering precision dosing of minimal powder weights at a fast turnover. The PTS technology performs powder dosing from a <1 mg in less than a second and with an accuracy rate reaching 2% RSD. The hopper is designed for powders with challenging flow properties to facilitate the powder transfer process. The system does not have an integrated filter, and it can dose ultra-fine and sticky materials.

The solution employs vacuum technology to transfer the powder to the calibrated chamber. Before dosing, the ┬ÁPTS automates vial charging, positioning, and taring. The measured dose is then ejected using a piston and weighed ahead of filling. A linear motor may be regulated in a closed loop with a weighing device to change the volume automatically.



  • Compact, hygienic design with no moving parts
  • Volumetric and volumetric-gravimetric dosing of powders
  • Capable of dosing powders <1-500 mg
  • Inline monitoring of dose quantity
  • Parallel and multiple dosing possible