Optoelectronics and display lens holder coating: polyurethane potting compound case study

Background

An equipment integrator / manufacturer in Optoelectronics and display needed to coating on a lens holder using polyurethane potting compound.

Process challenge

Bead width and height must stay stable with no edge creep.

Solution

We recommended Dispensing Valve + Glue Distributing Machine, with using a servo dispensing module with a programmable speed profile to hold a constant extrusion rate.

Result

Volume drift held within ±3% over an 8-hour run.
Shot volume 1.5 mL with deviation within ±2%.
Cycle time 1.1 s per dot with no stringing or dripping during continuous running.

Project facts

Industry: Optoelectronics and display
Workpiece: lens holder
Fluid: polyurethane potting compound
Process: coating
Recommended lines: Dispensing Valve, Glue Distributing Machine