Pulp egg tray machine

The pulp egg tray machine is a pulp molding machine that converts waste paper, cartons, and other recyclable paper materials into molded pulp packaging products. Besides standard egg trays, the same production principle can be used to manufacture wine bottle trays, fruit trays, coffee cup trays, and other customized paper pulp packaging by changing the molds.

With production capacities from 2,500 to 7,000 pieces per hour, the egg tray making machine can be configured for different product requirements, mold designs, and drying systems.

What are the advantages of egg tray machine?

• The forming principle remains the same when producing different products. By replacing the forming and transfer molds, the machine can adapt to different shapes and packaging requirements.
• The baffle inside the main pulp tank helps distribute the pulp more evenly toward the four corners of the tank. This helps improve the thickness consistency of the finished product.
• During pulp molding, excess water is removed through the pipelines and can flow back to the return-water tank. This helps reduce unnecessary water loss and supports water circulation within the production process.
• Our pulp egg tray machine can be combined with different drying methods according to production capacity and local conditions.
• The available models cover approximately 2,500–7,000 pieces per hour. Customers can select a machine according to their target output.
• Plastic molds are suitable for standard products such as 30-egg trays, while aluminum molds can be used for customized and irregular-shaped products. A plastic-and-aluminum combination mold is also available for specific production requirements.

Pulp egg tray machine models and specifications

Mẫu mã	Dung lượng	Công suất	Điện áp	Trọng lượng	Main Machine Size	Paper Consumption	Water Consumption
WJ-2500-3X4	2,500pcs/h	55kW	380V, 50Hz	4,000kg	2900 × 1800 × 1800 mm	200kg/h	400kg/h
WJ-3000-4X4	3,000pcs/h	60kW	380V, 50Hz	4,800kg	3250 × 1800 × 1800mm	240kg/h	480kg/h
WJ-4000-4X8	4,000\pcs/h	95kW	380V, 50Hz	7,000kg	3250 × 2300 × 2500mm	320kg/h	640kg/h
WJ-5000-5X8	5,000\pcs/h	95kW	380V, 50Hz	8,000kg	3700 × 2300 × 2500mm	400kg/h	800kg/h
WJ-7000-6X8	7,000\pcs/h	120 kW	380V, 50Hz	10,000 kg	3200 × 2300 × 2500 mm	480kg/h	960kg/h

What can an egg tray making machine produce?

Although commonly called an egg tray machine, the equipment is not limited to egg packaging. It uses pulp molding technology, so different products can be produced by replacing the forming and transfer molds.

Typical products include:

Sản phẩm	Typical Application
Egg trays	Packaging eggs for farms, wholesalers, supermarkets, and distributors
Wine bottle trays	Protecting wine and glass bottles during storage and transportation
Fruit trays	Separating and protecting apples, pears, peaches, and other fruits
Coffee cup trays	Holding and transporting takeaway coffee cups
Beverage trays	Packaging and separating bottles or cans
Industrial pulp trays	Protecting small parts, electronics, and other products
Customized molded pulp packaging	Designed according to the shape and size of specific products

Working principle of egg tray forming machine

The pulp egg tray machine uses vacuum suction to draw prepared paper pulp onto the forming mold. The pulp takes the shape of the egg tray on the mold. After forming, air blowing transfers the wet egg tray to the transfer mold. Excess water is removed through the vacuum system and pipelines, then returned to the water tank.

Egg tray molds for pulp egg tray machine

A complete mold set consists of an upper forming mold and a lower transfer mold. During production, the upper mold absorbs pulp and forms the product, while the lower mold receives the wet molded product during the transfer process.

Three mold configurations are available:

1. Plastic mold: Plastic molds are commonly used for standard egg trays. Small holes are distributed across the mold surface and covered with stainless steel mesh.
2. Aluminum mold: Aluminum molds are suitable for customized and irregular-shaped molded pulp products. For example, wine bottle holders, fruit packaging, coffee cup trays, and other protective packaging can be designed according to the customer’s product dimensions.
3. Plastic and aluminum combination mold: The combination configuration uses a plastic forming mold and an aluminum transfer mold.

For a new project, the required product sample, dimensions, number of cavities, and production capacity should be confirmed before purchasing the pulp egg tray machine.

Choosing the drying system for molded pulp products

The pulp egg tray machine only produces wet pulp products, so a suitable drying system is required before the trays can be stacked, packaged, and transported.

1. For smaller production, natural sun drying can reduce energy costs, although it requires more space and labor and depends heavily on local weather.
2. A drying oven or trolley dryer provides a more controlled drying environment and is suitable for smaller commercial production where outdoor drying is difficult.
3. For production above approximately 2,500 pieces per hour, a brick-kiln drying system can provide continuous drying.
4. For higher-capacity production, a multi-layer metal dryer can reduce the floor space required for drying. A typical system uses multiple drying layers and can use coal, wood, natural gas, or diesel as the heating fuel.

The best drying system depends not only on output but also on local fuel prices, factory space, climate, labor availability, and the final molded pulp product.

Complete egg tray production line for sale

A complete egg tray production line has three main sections: pulping, forming, and drying.

1. Pulping: Waste paper is mixed with water and processed into pulp. The pulp then passes through the storage tank and supply tank for further mixing and dilution.
2. Forming: The prepared pulp enters the pulp egg tray machine. Vacuum suction forms the pulp on the mold to create wet egg trays.
3. Drying: The wet trays are transferred to the drying section. Depending on the project, drying can be done with a drying box, brick kiln, or metal dryer.

FAQ about pulp egg tray machines

Looking for a pulp egg tray production solution?

Whether you are looking for a pulp egg tray machine for standard egg packaging or a complete egg tray production line. We can help you choose a suitable configuration. Contact us to discuss the right machine, mold, and production-line solution for your project