![]() Cooling zone: This is the last zone to gradually cool the PCBA and solidify the solder joints.The maximum allowable peak temperature limit is determined by the type of electronic component on the PCB assembly with the lowest tolerance for high temperatures (the component most susceptible to thermal damage). It is part of the reflow process where the maximum temperature is reached. Reflow zone: This zone is also called “ time above reflow” or “ time above liquidus”.Thermal soak zone: This is the high temperature zone where the temperature is high enough to melt solder paste so that the component leads get soldered to the pads on the circuit board. Heller Industries, the market leader in Reflow Soldering technology, supplies solutions for electronics manufacturers and assemblers worldwide.The temperature of the board and all the SMD components is gradually and uniformly raised to prevent any crack to the SMT PCB due to thermal shock. Preheat zone: This is the first chamber or zone of any reflow oven.The process is focusing on creating acceptable solder joints by pre-heated components, which provides the opportunity to melt the solder without causing damage by overheating. Reflow all types of components including LEDs. Reflow soldering is the most popular and widely used method of connecting surface mount technology (SMT) components to a printed circuit board (PCB). ![]() suit the particular Thermal profile of the alloy composition of Solder paste being used. Great for assembly of circuit boards as wide as 11.5 inches. This Batch reflow oven has a large intuitive operating display. ![]() Different Zones of Reflow Oven and Reflow Soldering Process 6 Zone SMT Reflow Oven, 11.5' Conveyor used Easy to use, touch screen programming This 6 Zone reflow oven has 3 upper and 3 lower heating zones. Now the electronics industry has made tremendous progress in redesigning heating elements to eliminate earlier problems.
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