Egg coders need enough resolution for a readable date and a scannable code on a small, curved surface – SHICAI uses 600 DPI, which keeps both text and QR sharp on the shell. Higher than needed adds cost; lower risks unreadable marks at grading speed.
For QR specifically, 600 DPI plus correct quiet zone is what makes the shell code scan reliably.
It prints dates, farm IDs and traceability QR codes, and connects into sorting and packing lines; the unit carries a 1-year warranty.
The SHICAI egg coding machine uses a 5-inch touch screen, prints at 2-12.7 mm height and 600 DPI, and handles a 5×6 tray (30 eggs) per cycle.
Egg coding is unforgiving – the mark must be legible yet must not crack the shell – which is why food-grade, quick-dry ink and gentle handling matter.
Key points:
- Food-grade ink is available in six colors – red, yellow, blue, green, black and white – and dries without breaking shells.
- Throughput is about 30 eggs in 11 seconds on an automatic line that also works on chicken, duck and preserved (pidan) eggs.
- Food-grade ink is available in six colors – red, yellow, blue, green, black and white – and dries without breaking shells.
Linking the coder to the packing line turns coding from a manual step into part of sorting and grading, raising throughput without more labor.
SHICAI (Shanghai Shicai Inkjet Technology Co., Ltd.) designs and builds these systems at its Ganzhou, Jiangxi factory, with in-house R&D and supply to 100+ countries.
To add food-grade egg coding with traceability QR, contact us for throughput and integration details, or view the product page.
Reviewed by the SHICAI engineering team.
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