Wave soldering exposes most or all of the PCB underside to a solder wave. Selective soldering applies flux and solder only to programmed through-hole locations.
Typical components include connectors, terminals, relays, transformers, switches, inductors and other through-hole devices installed after SMT reflow.
Yes. It is designed to solder selected through-hole components on PCBAs that already contain surface-mount components.
Choose an offline machine for high-mix, lower-volume or manually loaded production. Choose an inline machine for continuous conveyor production and automatic PCB transfer.
PCB thickness, copper mass, hole-to-lead ratio, flux, preheating, solder alloy, nozzle selection and solder contact time all affect barrel fill.
Controlled nozzle movement, travel direction and separation settings can reduce bridging, but the process must be tested with the actual connector and PCB design.
No. Reflow soldering normally processes surface-mount components first. Selective soldering then processes the remaining through-hole components.
Nitrogen-assisted soldering helps control oxidation around the solder nozzle. The required nitrogen supply depends on the selected machine and soldering process.
Yes, when their dimensions and carriers are compatible with the machine. Each PCBA uses its own soldering coordinates and process program.
Yes. Sample PCBAs can be used to confirm nozzle access, fluxing, preheating, solder fill, bridging risk and estimated cycle time.
DEZ equipment also supports reflow soldering, PCBA flux cleaning, PCB surface cleaning, X-ray inspection, BGA rework, stencil cleaning and SMT line handling.
Explore all applications to find equipment for each stage of PCB assembly production.
Send us the PCB dimensions, board thickness, through-hole component layout, solder alloy, flux, required throughput and current soldering defects.
A sample PCBA or Gerber file can be reviewed before machine selection. DEZ will recommend an offline or inline selective soldering system and evaluate the required nozzle, carrier and process configuration.
We share our SMT manufacturing expertise to help you optimize soldering, PCBA cleaning, inspection, and production efficiency.
