Working steps of the Egg Tray Making Machine
1. Pulping System (Make paper into slurry): Waste paper is fed into a hydraulic pulper, mixed with water, and broken down into a slurry. The pulp is then filtered and refined to ensure a smooth, clean, and consistent texture, and mixing in the paper pulp pools, mix well paper pulp is fed to the egg tray machine.
2. Forming System (Egg tray molding machine): This is the key steps. The vacuum pumps suck the pulp onto specially designed molds (egg tray molds, egg box molds apple tray molds etc), which are often covered with stainless steel mesh to allow water drainage while retaining fibers. The molds shape the wet egg trays on the egg tray machine, removing excess water, egg tray making machine will transfer the wet trays into egg tray drying metal oven dryer or onto the pallets for sunshine drying.
3. Drying System (Moisture Removal): The wet trays contain about 60–75% water, and the drying method of the egg trays, which can be:
1) Natural Drying: Sunshine drying, suitable for small-scale operations, and egg tray production capacity is less than 3000 pieces per hour, and the egg tray producer local temperature is higher whole year and less rain.
2) Brick Kiln Drying: Medium-scale, using a conveyer belt through a brick tunnel which can burn coal or wood chips as heating source.
3) Metal Multi-layer Drying: High-efficiency, using gas, diesel, LPG, thermal oil or steam as heating source for high-capacity, industrial-scale production which capacity is over 4000 pieces per hour.
4. Hot Pressing & Packing (Finishing): For high-quality, dense trays like egg box trays coffee cup holder carrier, the dried trays may go through a hot pressing process to solidify and smoothen them. Finally, the trays are counted, stacked, and packed, sometimes using automatic systems.
Key Components and Types
Rotary Rum Egg Tray Forming Machine: A commonly used, efficient machine, especially with 4-sided to 8-sided designs, suitable for high-volume production.
Vacuum System: Essential for drawing pulp and removing water, often designed with low noise degree and water-saving technology.
Raw Materials: Generally uses recycled newspapers, old cartons, and office paper, books paper, making it an eco-friendly process
Pollution: whole egg tray production progress will not have waste water output, the water is recycled in the pulping system, it is environment-friendly production project.
