Metered Dose Inhalers | Case Study | Trelleborg

Metered Dose Inhalers

Customer: Medical Device Manufacturer
Application: Metered Dose Inhalers


  • Perfect surfaces without trimming required
  • Mold join burr must be <0.05 mm / .002 inch
  • Requires standard volume of 7.464 mm3 to minimize evaporation and remain tight against high-pump pressure
  • Cleanroom manufacture for high-cleanliness needed


The inhaler produces a gentle cloud, leaving plenty of time for the user to inhale the medication. The O-Ring prevents medication in the dosing chamber from running back down the capillary. The seal is manufactured to extremely tight tolerances in a cleanroom environment to meet the requirements of the application.