Medical and consumables swab tube underfill: conductive silver adhesive case study

Background

An equipment integrator / manufacturer in Medical and consumables needed to underfill on a swab tube using conductive silver adhesive.

Process challenge

Large potting volume where voiding and incomplete fill are hard to balance.

Solution

We recommended Screw Valve + Sensor, with using a servo dispensing module with a programmable speed profile to hold a constant extrusion rate.

Result

• Overflow and stringing defects reduced by roughly 60%.
• Shot volume 1.5 mL with deviation within ±2%.
• Cycle time 0.7 s per dot with no stringing or dripping during continuous running.

Project facts

• Industry: Medical and consumables
• Workpiece: swab tube
• Fluid: conductive silver adhesive
• Process: underfill
• Recommended lines: Screw Valve, Sensor

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