In PCB manufacturing, two main methods are used to attach electrical components to printed circuit boards - wave soldering and selective soldering. At Capital Equipment Exchange, we want to help you understand the different ways SMT machinery performs these processes to make the best decision when choosing equipment for your PCB assembly line.
Both wave and selective equipment involve the same three main processes:
Wave soldering is a quick process. PCBs are moved over a molten "wave" of solder to adhere large quantities of leads at once. The flux, preheating, and application steps are combined into one convenient, reliable process.
However, there are also limitations.
For boards that are double-sided or jam-packed with components, selective soldering is often the more popular choice. That's because you can program these machines to "selectively" solder some components while protecting others from heat damage. The precision, accuracy, and reliability of your results will often depend on your programming.
While selective soldering can prevent faulty joint issues and save you in the long run on wasted solder, this process can take time to get just right. High SMT production lines that rely on a good mix of speed and reliability may benefit more from the wave process. The method with the highest accuracy - selective solder - is also the one with the longest production time.
We can help you weigh the pros and cons and choose the type of used SMT equipment that will best suit your business.
Whether you choose wave, selective, or hand soldering, we look forward to helping you save time and money on the right used SMT equipment. Find reliable machinery from brands like Speedline Electrovert, Soltec, ERSA, and Sensby. At Capital Equipment Exchange, we also sell the parts to keep them going. We also carry SMT preheaters for your rework stations.
Contact us today to learn more or place your order.