There are many advanced supplementary options available for each machine type. For example, Speedline ELECTROVERT provides a patented hot air knife debridging technology, which is used to remove bridges and perform non-destructive stress testing of solder joints. The air knife is located at the exit of the welding tank and shoots 0.4572mm narrow hot air towards the solder joint at an angle of 40° to 90° to the horizontal. It can make all the perforated solder joints that were not soldered well enough due to the air left in the first time to be refilled with solder without affecting the normal solder joints. However, it must be noted that in order to significantly improve the quality of solder joints, it is not necessary to set more options on the wave soldering equipment. And as with all production equipment, it's also important to check the true accuracy of each engineering data, and the best way to do that is to run the board through the machine before buying.