paper pulping machine

Paper Pulping Machine

In an egg tray production line, the paper pulping machine is an essential core piece of equipment. Its…

In an egg tray production line, the paper pulping machine is an essential core piece of equipment. Its main function is to mix and stir waste paper with water to produce a uniform and fine pulp, providing a solid foundation for the subsequent forming process. An efficient and stable pulping process plays a key role in the quality and production efficiency of egg trays.

Shuliy offers a user-friendly and complete pulping system designed to improve pulp quality and simplify operation. We can also provide layout drawings tailored to your plant size for optimal space utilization.

pulping machine
pulping machine

What Is a Paper Pulping Machine?

A pulping machine, also called a pulper, is a device used for recycling paper. It uses a high-speed stirring mechanism to mix waste paper with water, separating and evenly dispersing the paper fibers to form pulp suitable for molding. Pulping machines are widely used in egg tray machines, paper tray packaging, pulp molding, and other related fields.

paper egg tray
paper egg tray

Functions of the Hydrapulper

  • Shredding and breaking down waste paper: Turning old newspapers, cartons, and other waste paper into fibrous pulp.
  • Uniform pulp mixing: Fully stirring paper and water to create pulp with the appropriate concentration.
  • Ensuring molding quality: The uniformity of the pulp affects the thickness, strength, and appearance consistency of finished egg trays.
  • Saving labor and time: Automated operation reduces manual labor and improves pulping efficiency.

Pulping Process Workflow

  1. Feeding and adding water: Waste paper and a certain ratio of water are added into the paper pulping machine.
  2. Stirring and shredding: The machine starts, and the stirring system operates at high speed to shred the paper into fibrous pulp.
  3. Pulp consistency adjustment: The pulp flows into a mixing tank where water is added or removed to adjust the concentration suitable for molding.
  4. Pulp delivery: The prepared pulp is pumped by the supply pump to the egg tray forming machine for the next production step.
pulp egg tray making machine
pulp egg tray making machine

How to Improve Egg Tray Quality During the Pulping Process

In egg tray production, the quality of the pulp directly affects the strength, appearance, and smoothness of the final product. By optimizing the pulping process, the overall quality of egg trays can be significantly improved. Here are some key recommendations:

1, Select Appropriate Waste Paper Materials

High-quality, clean, oil- and plastic-free waste paper is easier to process evenly, helping to improve the density and toughness of egg trays.

2, Control Pulp Concentration

Maintaining an appropriate pulp concentration (typically 3%–5%) helps ensure even adsorption by the mold, reducing issues such as uneven thickness or incomplete tray formation.

3, Ensure Even Mixing of Pulp

The paper pulping machine should operate with continuous, high-speed agitation to fully disperse the paper fibers. This creates a fine and uniform pulp that improves forming precision.

4, Add Necessary Additives

As needed, additives such as waterproofing agents, colorants, or strength enhancers can be introduced to improve water resistance, appearance, or structural strength of the trays.

Contact Us For Egg Tray Production Solutions

If you’re planning to set up an egg tray manufacturing plant, we can provide reliable paper pulping machines along with tailored technical support.

Welcome to contact us for more specifications, parameters, working video, and customized solutions of the pulping equipment. We will provide suitable configuration suggestions and quotations according to your production needs and plant layout.