Source pre-owned SMT inspection systems with the correct process role: SPI for solder paste inspection before placement, and AOI for optical inspection after placement or reflow.
SPI and AOI are different inspection roles. SPI checks solder paste printing before placement. AOI checks component presence, polarity, offset and soldering-related appearance depending on whether it is placed before or after reflow.
LCSMT helps buyers confirm the requested inspection stage, board size, camera/lighting requirement, software language, conveyor direction, available photos, testing possibility and export packing plan before quotation.
A wrong category creates wrong quotation. Tell us the process position first, then we can check suitable inspection platforms and real available units.
For AOI and SPI, the most important detail is not only brand. The inspection role, board size, process location and software requirement decide whether a used unit is suitable.
We avoid quoting a wrong machine category. First we confirm whether you need solder paste inspection, optical inspection before reflow or optical inspection after reflow.
Clarify SPI, pre-reflow AOI or post-reflow AOI and the defects you want to detect.
Check PCB size, conveyor height, line direction, software and electrical requirements.
Confirm real photos, condition, testing possibility and model details before quotation.
Coordinate export packing, loading confirmation and forwarder handover for overseas shipment.
Send target model, machine photos or inspection requirement when available. We can discuss AOI/SPI machine condition, software status, camera/lighting requirements and export handling together.
No. SPI checks solder paste printing before placement. AOI is optical inspection used after placement or after reflow depending on your process.
Yes, when a suitable unit is available, photos or video can be requested based on warehouse access and machine condition.
Yes. Please tell us the defect type, process position, PCB size and current SMT line configuration.
No. Stencil printers are upstream printing equipment and should not be shown as AOI/SPI machines.
Hover a card to expand its representative model. Each card uses a real image path from the uploaded gallery when available.
Send the inspection position, target model, board size, line direction and destination country. LCSMT will help confirm suitable options, media feasibility and export support.
