
How Does a Pharmaceutical Metal Detector Work?
Pharmaceutical metal detectors operate by using three coils wound around a supporting frame to create an electromagnetic field. When a product passes through this field and contains any metal contaminants, the electromagnetic field is disturbed. This disturbance triggers the detector to send a signal to a reject mechanism, which then automatically removes the contaminated product from the production line.
Metal detectors can identify all types of metals, including ferrous (chrome, steel), non-ferrous (brass, aluminum), and both magnetic and non-magnetic stainless steels.
Typical pharmaceutical inspection formats include:
- Gravity-fed processes for powders
- Tablets and capsules post-processing
Ultra-high tuned frequency operation enhances sensitivity, particularly for non-magnetic stainless steel contaminants, which can be more difficult to detect.










