Consumer electronics TWS earbud housing coating: two-component epoxy case study

Background

An equipment integrator / manufacturer in Consumer electronics needed to coating on a TWS earbud housing using two-component epoxy.

Process challenge

Tight cycle time with frequent changeovers that squeeze setup time.

Solution

We recommended Screw Valve + Dispensing Valve, with adding regulated supply with a drum pump for continuous feed to suppress pressure ripple.

Result

• Volume drift held within ±3% over an 8-hour run.
• Shot volume 1.5 mL with deviation within ±3%.
• Cycle time 0.6 s per dot with no stringing or dripping during continuous running.

Project facts

• Industry: Consumer electronics
• Workpiece: TWS earbud housing
• Fluid: two-component epoxy
• Process: coating
• Recommended lines: Screw Valve, Dispensing Valve