An egg tray production line is an integrated manufacturing system that converts waste paper into finished pulp trays through pulping, vacuum forming, drying, and packaging. The Shuliy SL-series handles outputs from 1,000 to 7,000 trays per hour on 20-hour operating schedules, producing 8,000 to 60,000+ standard 49-cell egg trays per day. Raw materials include waste cardboard, newspapers, old books, and kraft paper. Finished trays serve poultry farms, supermarkets, hatcheries, and export packaging channels.