Sometimes it is not evident from the outset which direction of flow through wave solder will produce the best results. Densly populated mixed-technology boards can present problems. Lead-free processes are now adding to the challenge of minimizing defects. Components are placed such that they save space on the PCB, which usually means an orientation that is horizontal or vertical. The manufacturing truth is however, that processing the PCB through the wave 90 degrees one way or the other may not provide optimum results.
Luckily, that is not your only option. Through the use of a rotating pallet like the one pictured above, the best angle of presentation to the wave can be determined. The angle is easily adjustable in 5 degree increments. Once it is determined which angle of presentation eliminates the most defects, dedicated tooling can be ordered that presents the PCB to the wave at exactly the correct angle.
Another advantage to this design is the ability to use the same pallet base to host any number of board designs. When you need to try it on a different board, simply order a new rotating plate, and slip it into your existing pallet base.
While it is true that Pentagon EMS has been manufacturing Rotating Wave Solder Pallets for a long time, it sometimes bears repeating that you are not stuck with a 90 degree orientation through wave solder . Call us and let us know how we can help you!
Close-Up Photo of angle indicator
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