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Shantou Longsheng Explains Egg Carton and Egg Tray Production Lines


Time: 2026-10-30 10:09:51.139

An Underrated High-Volume Market

Eggs are one of the most consumed animal proteins worldwide. As branded and washed eggs move from wet markets to supermarket shelves, 6- and 12-egg flip-top cartons are growing fast. Compared with molded pulp, thermoformed plastic egg cartons are clear, moisture-resistant and printable, which is why premium egg brands prefer them.

Three Layers of Egg-Position Design

  • Each conical pocket must match the egg profile so eggs do not rock; less movement means lower breakage
  • Ribs between pockets form a cushioning grid that spreads impact during transport
  • The flip-top hinge is molded in one piece with stable closing force, so stacks hold on supermarket shelves

Materials and Line Configuration

HIPS and PP are the mainstream materials; PP performs better at low temperature for cold-chain distribution. Longsheng multi-station thermoforming machines complete forming and cutting in one cycle, and Longsheng precision molds keep pocket-to-pocket consistency within tight tolerances. With automatic stacking and packaging equipment, line speed can match egg-processing plant throughput.

About Longsheng

Founded in 1998, Shantou Longsheng Industry Co., Ltd. holds 25 granted patents and is a certified high-tech enterprise. Learn more at https://www.stlongsheng.com

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