The egg tray conveyor carries those wet products through a drying oven where most of the balance of water content of the products is evaporated off by means of re-circulating hot air until the products have only 8% moisture left.

There are two types of drying oven, single layer drying tunnel and multi layer drying oven; while the first one is more cost-effective but shorter in distance (30m) and occupies larger land; the second type less in size, longer drying distance and consumes less energy.

The egg tray drying section consists of a direct-fired natural gas (or oil) re-circulating air dryer with a pass conveyor carrying the wet products through the heated dryer tunnel. An endless chain conveyor system conveys them through in the dryer tunnel while re-circulated hot air is blown from the top through the layers. The dried egg tray are then discharged to an unloading conveyor where they are automatically stacked, counted.

Egg tray molding machine
Egg tray molding machine
Egg tray molding machine