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Complete Plywood Production Line: Full Process Equipment Guide
2026-06-17 13:55:47

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1. Log Pre-treatment Section

After logs arrive at the mill, the first step uses log loading racks, log sorting systems and log cross-cut saws. The log sorter adopts grating scanning to automatically detect log diameter, length and bending degree for automatic grading. After logs are sorted by specification, they are cut to standard lengths suitable for veneer peeling machines. Automation at this stage directly determines the raw material yield of the whole line. Manual sorting features low efficiency and large error. Modern plywood mills widely adopt automatic log sorting lines.


2. Veneer Preparation Section (Core Section)

The core machine is the log veneer peeling lathe. It peels logs continuously into thin veneer sheets. The precision of the peeling lathe decides the uniformity of veneer thickness. Uneven veneer thickness will cause uneven glue spreading, panel warping and finished product rejection. Wet veneer from peeling is cut into standard sizes by veneer clipper, and defective veneers are removed.


3. Veneer Processing Section

Wet veneer carries high moisture content and must be dried in a veneer dryer. The target moisture content after drying should be controlled between 8–12%. Too high moisture will lead to delamination and blistering after hot pressing. Too low moisture makes veneer brittle and easy to break. After drying, veneer patchers repair holes, and veneer composers joint narrow veneers into full-size core veneers.


4. Layup & Hot Pressing Section

Dried veneers go through glue spreader for glue coating. Operators or automatic systems lay up veneers with grain directions perpendicular between adjacent layers. The assembled panel mat goes into cold press for pre-pressing, which bonds the mat temporarily for transportation. Then the mat enters the hot press. Under high temperature and pressure, adhesive cures and forms the structural strength of plywood. Three key parameters: hot pressing temperature, pressure and time, dominate panel quality.


5. Finished Panel Finishing Section
Hot-pressed panels go through cooling, trimming saw to cut to standard dimensions, sander for surface sanding, grading, inspection and packaging, to get final plywood products.
A complete turnkey plywood line is not simply putting machines together. Capacity matching of each machine and workshop layout design directly affect mill output, energy consumption and qualified rate. When building a new plywood plant, manufacturers need customized line solutions based on local log resources, target capacity and workshop space.



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