Plywood production

Plywood production is a high—tech process that requires the use of specialized equipment at every stage, from harvesting wood to finishing finished sheets. In this review, we will look at the key types of equipment used in plywood production and their functions.

Sawmill equipment

The first stage of plywood production begins with the harvesting of wood. The following are used here:

• Chain saws and harvesters for cutting down trees;
• Debarkers (bark removal machines) that clean trunks of bark before further processing.

Veneer production equipment

The next step is to get the veneer. To do this, apply:

• Veneer-removing machines, which can be of the rotary type for the production of veneer by peeling tree trunks, and milling machines, which provide thicker veneer layers;
• Miter machines that cut veneer to the required dimensions.

Drying equipment

The veneer is dried using:

• Roller and conveyor drying chambers that ensure uniform drying of the veneer with minimal deformation.

Gluing equipment

Gluing veneers is a critical step in which the plywood sheet is formed. Here they apply:

• Gluing machines that evenly distribute glue over the surface of veneers;
• Tinting machines, if necessary, to add color or other characteristics to the glue.

Pressing equipment

To form and fasten veneer layers into a single sheet, the following are used:

• Hot and cold presses that create the necessary pressure and, in the case of hot presses, the temperature for polymerization of the adhesive.

Equipment for trimming and grinding

After the plywood sheets are formed, they are processed on:

• Cutting machines to give them precise dimensions;
• Grinding machines to smooth the surface of plywood.

Finishing treatment

At the last stage, to add additional properties to the plywood or improve its appearance, it can be used:

• Laminating presses that apply protective and decorative coatings;
• Machines for applying varnish and paint, ensuring uniform surface coverage.

Conclusion

The technological line for the production of plywood includes a variety of various equipment, each element of which performs its own specific function. The choice and configuration of equipment depends on the scale of production, the required characteristics of plywood and the available investments. Modern technologies make it possible to automate many processes, increasing production efficiency and the quality of finished products.