Cartesian Dispensing robot avoids contact contamination

Intertronics were pleased to note that trials for an in-flight PCB conformal coating application proved that applying the coating material by a robot-controlled precision brush, fed by an I&J Fisnar valve, improved quality, reduced setup time, gave repeatable results and saved $75,000 in systems costs. An important requirement in the trials was that no contamination should be present on the 90° contacts that were used for interface to an aircraft wiring harness; this request could not be guaranteed with spray valve systems. Time spent covering contacts with protective masking cups was eliminated and post assembly dismantling and clean up avoided. Programming and test were simple to execute and the popular model I&J7400C Cartesian Dispensing Robot was selected as the robot of choice - several systems are now installed. Further information regarding Intertronics’ products can be found at www.intertronics.co.uk