What is a selective soldering machine?
A selective soldering machine is a programmable tool designed for the accurate soldering of individual through-hole components on printed circuit boards (PCBs). Traditional wave soldering is not apt for the soldering of through-hole components on mixed PCBs, which have both surface-mounted (SMT) and through-hole components on them. The selective soldering process is used to solder these components on mixed PCBs. Compared to manual soldering, this machine provides faster (capable of soldering multiple boards per hour), repeatable, consistent, high-quality, cost-effective (reduces labor cost) soldering and thus leads to better results & increased throughput.
Selective soldering machines consist of several major components: a flux spraying device, a preheater, solder pots, an XYZ axis drive unit for the PCBs, and a PCB handling system. A computer program controls the entire process by modifying several parameters like preheat temperature, solder temperature, wave height, and dwell times to ensure smooth operation. The selective soldering machines are available in both offline and online configurations. The offline models function based on moving PCBs in the X, Y, and Z directions to flux and solder, and the online configuration has an inline conveyor system that allows it to work continuously. Non-oxidizing nitrogen gas flows through the soldering to achieve high-quality joints. The PCB is inspected after soldering to determine whether or not it meets IPC standards, which confirms the integrity of the work performed.
Key parameters of Selective soldering machine
- Solder pot capacity: Represents the solder pot capacity, usually expressed in Kg.
- PCB size: It is the maximum size of the PCB that can be handled by the machine and is represented in mm.
- Heater power: It is the power rating of the heater equipped by the machine, expressed in Watts.
- Flux volume: Represents the amount of flux volume that can be handled by the machine and is represented in liters.
- Position accuracy: It is a measure of the exact positioning capability of the machine to move PCB/flux & solder pot system when soldering. It is measured in ± X mm.
- Solder Temperature: The temperature at which the solder melts.
PCB Directory has listed PCB selective soldering machines from the leading manufacturers in the industry and made it easy for users to find these machines based on their requirements. You can specify the PCB size, solder pot capacity, and other parameters to find a machine that meets your requirements. You can also view machine specifications, download the spec sheet, and get a quote. Quotes requested are routed to the manufacturer.
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