Fully Automatic Solder Paste Printing Line for Double-Sided PCB

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Main specifications of the device

Overall footprint(L*W*H)11500*9000*2100mm
Printing sizeMax：730*730 Min：300*300
Thickness0.6~3.0mm
WeightMax：4kg
Printing accuracy (non-material shrinkage, and screen expansion) ±0.05mm
Fastest printing speed (full speed)about 300PCS/H 3000PCS/shift/10hours
Printing directionLeft and right printing
Working voltage3 phase, 380V, 5 lines
Pressure6～8kg/cm2 PSI
Table size900*1100mm（can be customised）
Table to ground height960±30mm
CCD positioning accuracy±0.02mm
Frame sizeMax：L1200*W1000mm Min：L800*W700mm
Maximum frame thickness25～55mm（can be customised）
Wash up height 380mm

Fully Automatic Solder Paste Printing Line for Double-Sided PCB

A fully automatic solder paste printing line is an important machine for making double-sided printed circuit boards (PCBs). It helps apply solder paste on PCB pads before placing components. This process is key to strong solder joints and high product quality.

What It Does

The machine prints solder paste on both sides of a PCB. It uses precise stencils to place the paste only on the pads. After printing, the PCB moves to the next process, such as component placement and reflow soldering.
The automatic system saves time and labor. It reduces human error and keeps the print quality consistent.

Key Features

  • Double-Sided Printing – The line can handle both top and bottom sides of a PCB.

  • High Precision – A vision alignment system ensures accurate paste placement.

  • Fast Speed – Automatic feeding and printing improve production efficiency.

  • Stable Quality – Consistent pressure and speed reduce defects.

  • Easy Operation – Touchscreen control makes setup simple.

How It Works

  1. PCB Loading – The machine takes in PCBs from the loader.

  2. Alignment – A CCD camera checks the PCB position and aligns it with the stencil.

  3. Printing – A squeegee moves across the stencil, pushing paste into the openings.

  4. Inspection – The system can check the paste deposit quality.

  5. Flipping – For the second side, the PCB is flipped and printed again.

  6. Unloading – The PCB moves to the next step in the SMT line.

Advantages for Manufacturers

Using a fully automatic printing line brings many benefits:

  • Higher Output – Continuous operation speeds up production.

  • Better Quality – Less variation means fewer reworks.

  • Cost Savings – Reduced labor and material waste lower costs.

  • Flexibility – Works with various PCB sizes and designs.

Applications

This type of machine is used in:

  • Consumer electronics (phones, tablets, wearables)

  • Automotive electronics (control units, sensors)

  • Industrial equipment (control boards, sensors)

  • Medical devices (diagnostic tools, monitoring systems)

Maintenance Tips

To keep the printing line in good shape:

  • Clean stencils after each batch.

  • Check alignment systems regularly.

  • Replace squeegee blades when worn.

  • Keep solder paste stored at the right temperature.

Conclusion

A fully automatic solder paste printing line for double-sided PCBs is a must-have for modern electronics production. It offers speed, accuracy, and consistent results. By investing in this technology, manufacturers can improve quality and reduce costs.