Pulp Moulding Machine is known as egg tray line for using massively in produce egg tray.

Pulp Moulding Machine, which uses waste paper, cardboard, leftover material of paper mill, by hydraulic pulper, mix making a certain dense pulp, and pulp is absorbed by vacuum of special metal moulding to become wet products, through drying , and shaping to become finished products.

Pulp Moulding Line processing makes use of recycled water and does not lead to water or air pollution. Finished packaging products can be recycled after being used in storage, transport, and sales. After shredding, they are easy to be decomposed as paper, even if discarded into the natural environment.

Automatic pulp molding production lines can be mass production of various food container, egg tray, lunch boxes and so on.

The major equipment of the machine are three parts include: Pulp Making System, Molding System, Drying system and packing system.

Equipment Process
1. Pulping system
(1) Put the raw material into the pulper and add an appropriate amount of water for a long time to stir the waste paper into pulp and store it in the storage tank.
(2) Put the pulp in the slurry tank into the pulping tank, adjust the pulp concentration in the pulping tank, and further stir through the homogenizer through the white water of the return pool and the thick slurry of the storage tank. After adjusting to the applicable pulp, put it into the feeding pool to be used in the molding system.
Equipment used: pulping machine, homogenizer, slurry pump, vibrating screen, pulp disintegrator
2. Forming system
(1) The pulp in the supply tank is supplied into the molding machine, and is adsorbed by the vacuum system, and the pulp is left on the mold by the mold on the equipment to be formed, and the white water is sucked and transported back into the pool through the vacuum pump.
(2) After the mold is adsorbed, the transfer mold is blown out by the positive pressure of the air compressor, and the molded product is blown from the molding die to the rotary mold, and is sent out by the transfer mold.
Equipment used: molding machine, mold, vacuum pump, vacuum tank, pump, air compressor, mold cleaning machine
3. Drying system
(1) Natural drying method: The product is dried directly by weather and natural wind.
(2) Traditional drying: brick tunnel kiln, heat source can choose natural gas, diesel, coal, dry wood,A heat source such as liquefied petroleum gas.
(3) New multi-layer drying line: 6-layer metal drying line can save more than 30% energy compared to transmission drying. The main heat source is clean energy such as natural gas, diesel oil, liquefied petroleum gas and methanol.
4. Finished product auxiliary packaging
(1) Automatic stacking machine
(2) Baler
(3) Transfer conveyor

Technical parameter

For pulp molded 30-cell egg trays : first the worker will weight the raw material and put them into the conveyor. Then the pulping ,forming, drying and stacking will be finished automatically. After drying, the finished products will be packed by workers.A hot pressing section should be added in the production of pulp molded egg box/carton(6-cell,10-cell,12-cell,6+6-cell,15-cell),fruit tray and cup carrier after drying because of shrinking.

The egg box/carton can be labelled or printed after hot pressing. These processes could be finsihed manually or automatically.

Technology Parameters