8 Sides Automatic Egg Tray Molding Machine is a highly efficient type of pulp egg tray making equipment used for the automated mass production of paper pulp egg holder trays. Its name comes from its core component—a rotating drum (rotary mold) with eight distinct faces, each face templates installed 4 pieces egg tray forming molds for continuous high-speed production of egg crate trays apple trays etc, it is the most economic and best choice for home business investment project to recycle waste paper old carton boxes into paper pulp packaging containers egg trays.
Egg tray molding machine capacity:3500-4000 pieces per hour(30 caves egg trays 70gsm per tray)
Working speed: 10-18 drops per minute
Egg tray machine frame: strengthen square steel tube structure
Egg tray machine pulp tank: SS304 stainless steel material
Egg tray machine molds installation templates: SS304 stainless steel 1470*470mm
Egg tray machine forming molds: 32 pieces forming molds, 4 pieces transfer molds
Egg tray machine installed forming molds max height: 80mm
Automatic egg tray making machine working principle as below:
1. Paper Pulp Preparation & Supply
Recycled paper (e.g., old newspapers, cartons) being mixed with water in a hydra-pulper to create a uniform pulp slurry.
The slurry pulp is pumped into a dedicated stock tank, which continuously supplies the forming section of the egg tray molding machine.
2. Forming Stage (On the Rotary Drum Egg Tray Molding Machine)
· The eight-sided rotary drum egg tray molding machine is the heart of the machine. Each of its eight faces contains multiple sets of negative mold cavities in the shape of egg trays.
· As the drum rotates slowly, one face immerses itself in the pulp slurry tank.
· Simultaneously, a vacuum system is applied to the submerged mold. This suction draws water through the small holes in the mold, causing the paper fibers to accumulate on the mold's surface and form a wet egg tray preform.
3. Transfer Stage (Precise Hand-off)
· After the forming stage, the drum rotates the wet egg tray preform out of the slurry tank.
· At a precise position, a transfer mold (typically a matching positive mold) aligns perfectly with the rotary drum mold.
· The transfer mold applies a stronger vacuum or a slight air pressure to pick up the wet tray from the rotary mold. This step is crucial for transferring the fragile, wet preform to the next stage without deformation.
4. Drying Stage
Sunshine/Brick oven dryer/Multi-layer metal oven dryer
5. Hot Pressing & Cooling (Optional for Smooth Trays)
For high-quality, smooth, and dimensionally accurate egg trays, the dried trays may pass through a hot press machine. Here, they are pressed between two heated metal molds to calibrate their shape and create a smooth surface.
6. Stacking and Packaging
Finally, the finished, cooled egg trays are automatically counted, stacked, and bundled for storage or shipment.
Automatic Egg Tray Making Machine Popular in South America Africa Asia
As our egg tray making machine, carton box cardboard machine, tissue paper machines exporting to more and more countries includes USA, Russia, Spain, Ukraine, Egypt, Nigeria, Saudi Arabia, India, Australia, Philippine, Mexico, Colombia, Argentina, our machines win good reputation both in China and abroad industrial paper packaging area due to good quality first class after sales service.