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The 20-Layer Intelligent Hot Press Plywood Production Line is a high-end wood processing equipment solution that integrates automation, intelligence, and high efficiency. Designed for medium to large-scale plywood manufacturers, it aims to achieve continuous operation from veneer laying to hot pressing through a highly integrated automation system and precise intelligent control. This significantly boosts production capacity and product consistency while reducing labor intensity and operational costs.
![]() | Complete Set of Equipment |
A plywood production line is a complex system comprising a series of equipment that processes raw logs into finished plywood. Modern production lines are highly automated, with specialized machinery for each step, from log handling to finished product packaging.
Debarker
Removes bark from the logs. Bark can affect veneer quality and bonding performance, so it must be removed first.
Types: Includes drum debarkers, ring debarkers, etc., capable of handling logs of different diameters and lengths.
Cross-Cut Saw / Bucking Saw
Cuts the debarked long logs into required lengths. The common dimensions of plywood (e.g., 4x8 feet) determine the cutting length of the blocks.
Types: Large circular saws or chain saws.
Peeler Lathe / Veneer Lathe
The heart of the production line. A steamed log block is mounted and rotated at high speed, while a sharp blade continuously "peels" the log into a continuous ribbon of veneer, similar to a pencil sharpener.
Key Point: The precision of the lathe determines the thickness consistency of the veneer. Modern CNC-controlled lathes allow precise control over veneer thickness.
Veneer Dryer
Veneer after peeling has very high moisture content and must be dried before gluing. The dryer reduces the veneer's moisture content to a suitable range (typically 8%-12%) using hot air.
Types:
Roller Dryer: Continuous drying, high output, suitable for large-scale production.
Mesh Belt Dryer: Veneer passes through the drying chamber on a conveyor belt.
Platen Dryer: More effective for thicker veneers.
Gluing Machine / Glue Spreader
Applies adhesive (e.g., UF resin, PF resin) evenly onto the surface of the veneer sheets.
Types:
Four-Roller Glue Spreader: Provides even glue application and precise control over glue spread; the standard for modern lines.
Two-Roller Glue Spreader: Simpler structure, suitable for less demanding applications.
Pre-Press / Cold Press
Subjects the assembled mat to cold pressing (or mild hot pressing) before it enters the hot press. The purpose is to achieve initial bonding between the plies, giving the mat enough initial strength for handling and loading into the hot press, preventing it from collapsing during hot pressing.
Hot Press
The core equipment of the production line. Applies high temperature and high pressure to the mat, curing the adhesive quickly and bonding the multiple veneer piles firmly into a solid panel – plywood.
Types: Classified by the number of openings:
Multi-Opening Hot Press: The 20-layer press mentioned earlier belongs to this type. High efficiency, suitable for large-scale production.
Single-Opening Hot Press: Suitable for small panels or special sizes.
Modern hot presses are typically integrated with intelligent control systems to precisely control temperature, pressure, and time profiles.
Automatic Loader/Unloader
Works in conjunction with multi-opening hot presses. Automatically loads the mat into each press opening and unloads the finished panels after pressing, enabling continuous production and ensuring safety.
Panel Saw / Trimming and Edging Line (Sizing & Sanding Line)
Trims the rough-edged panels to standard sizes (e.g., 1220x2440mm), removing irregular edges.
Process: Typically involves first passing through a double-edged trim saw for longitudinal cutting, followed by a cross-cut saw for transverse cutting.
Sanding Machine / Wide Belt Sander
Sands and polishes the surface of the plywood to eliminate surface irregularities, pre-cured layers, and other defects, obtaining a smooth and flat surface suitable for subsequent laminating, painting, or direct use.
Types: Wide-belt sanders (typically with three heads: coarse, fine, and finish sanding) are the most common type.
A complete, modern plywood production line is an integration of material handling equipment (conveyors, turners), processing machinery (peeling, sawing, sanding), and core forming equipment (drying, pressing). The higher the degree of automation, the greater the requirement for interlinked control systems and intelligent logistics between the equipment, ultimately achieving high efficiency, high output, and stable product quality.
Core Components of the hot press machine
This production line is not a single machine but a complete system, primarily consisting of:
1. Automatic Laying-up Unit: Automatically applies glue, assembles veneers, and performs pre-pressing, ensuring uniform mat thickness and tight structure.
2. 20-Layer Intelligent Hot Press: The heart of the line. Utilizes multi-cylinder balanced pressure technology to ensure even pressure across each platen. Equipped with an advanced PLC and touchscreen control system.
3. Intelligent Control System: The brain of the line. Integrates PLC, HMI touchscreen, and temperature/pressure sensors. It allows for pre-setting and storing various production process recipes.
4. Hydraulic System: Provides stable and powerful force for the hot press, with fast response and excellent pressure-holding performance.
5. Heating System: Typically uses thermal oil or steam for high thermal efficiency and precise, uniform temperature control.
6. Automatic Loading/Unloading Machine: Synchronizes with the hot press to automatically feed the mat and unload the finished panel, enabling continuous production and ensuring operational safety.
Workflow of the hot press machine
1. Feeding & Laying: Dried veneers are coated with glue and then precisely stacked into a mat by the automatic laying machine.
2. Loading & Feeding: A manipulator accurately feeds the mat into each of the 20 layers of the hot press.
3. Hot Pressing & Forming: Under the control of the intelligent system, the hot press applies pressure and heat according to pre-set curves for temperature, pressure, and time, curing the adhesive to form a strong plywood panel.
4. Unloading & Discharging: After pressing, the loading/unloading system automatically removes the finished panels from each layer and transfers them to the next process (e.g., trimming, sanding).

Key Advantages & Features
High Production Efficiency: The 20-layer design allows for pressing 20 panels simultaneously, offering several times the capacity of ordinary single-opening or multi-opening presses, meeting large-scale production demands.
Superior Product Quality: The intelligent temperature control and balanced pressure system ensure extremely uniform heating and pressure for every layer and every panel, resulting in consistent thickness, high internal bond strength, and minimal warpage.
High Automation & Intelligence: Fully automated process from laying to loading/unloading, drastically reducing manual intervention. The PLC system precisely controls the entire pressing cycle and records production data for easy quality traceability.
Energy Efficient & Eco-Friendly: Advanced heating system and insulation design effectively reduce heat loss. Precise gluing technology helps minimize adhesive consumption, complying with environmental standards.
User-Friendly & Safe Operation: Intuitive touchscreen interface allows easy parameter setting and switching. Comprehensive safety interlock devices and automated handling systems greatly enhance operational safety.
Robust & Durable: Key components are manufactured from high-quality steel and advanced processes, ensuring long-term, stable operation under high temperature and pressure conditions.
Technical Parameters (can be customized)
Number of Press Openings: 20 Layers
Maximum Pressing Size (L x W): 1220mm x 2440mm (4' x 8') or Customized
Total Pressing Force: Customizable (e.g., 3000 Ton)
Platen Temperature Range: Room Temperature - 200°C (Adjustable)
Heating Method: Thermal Oil / Steam / Electric Heating
Control System: Fully Automatic PLC + Touchscreen Control
Overall Dimension: Dependent on specific configuration.
Applications
Primarily used for producing various specifications and thicknesses of construction plywood formwork, furniture-grade plywood, decorative plywood, etc. It is an ideal investment for large plywood manufacturing companies, wood industry groups, and building material producers.
Customize Your Plywood Solution Now! Plant layout design, on-site training & global logistics support – Build your competitive plywood brand today!
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com

The 20-Layer Intelligent Hot Press Plywood Production Line is a high-end wood processing equipment solution that integrates automation, intelligence, and high efficiency. Designed for medium to large-scale plywood manufacturers, it aims to achieve continuous operation from veneer laying to hot pressing through a highly integrated automation system and precise intelligent control. This significantly boosts production capacity and product consistency while reducing labor intensity and operational costs.
![]() | Complete Set of Equipment |
A plywood production line is a complex system comprising a series of equipment that processes raw logs into finished plywood. Modern production lines are highly automated, with specialized machinery for each step, from log handling to finished product packaging.
Debarker
Removes bark from the logs. Bark can affect veneer quality and bonding performance, so it must be removed first.
Types: Includes drum debarkers, ring debarkers, etc., capable of handling logs of different diameters and lengths.
Cross-Cut Saw / Bucking Saw
Cuts the debarked long logs into required lengths. The common dimensions of plywood (e.g., 4x8 feet) determine the cutting length of the blocks.
Types: Large circular saws or chain saws.
Peeler Lathe / Veneer Lathe
The heart of the production line. A steamed log block is mounted and rotated at high speed, while a sharp blade continuously "peels" the log into a continuous ribbon of veneer, similar to a pencil sharpener.
Key Point: The precision of the lathe determines the thickness consistency of the veneer. Modern CNC-controlled lathes allow precise control over veneer thickness.
Veneer Dryer
Veneer after peeling has very high moisture content and must be dried before gluing. The dryer reduces the veneer's moisture content to a suitable range (typically 8%-12%) using hot air.
Types:
Roller Dryer: Continuous drying, high output, suitable for large-scale production.
Mesh Belt Dryer: Veneer passes through the drying chamber on a conveyor belt.
Platen Dryer: More effective for thicker veneers.
Gluing Machine / Glue Spreader
Applies adhesive (e.g., UF resin, PF resin) evenly onto the surface of the veneer sheets.
Types:
Four-Roller Glue Spreader: Provides even glue application and precise control over glue spread; the standard for modern lines.
Two-Roller Glue Spreader: Simpler structure, suitable for less demanding applications.
Pre-Press / Cold Press
Subjects the assembled mat to cold pressing (or mild hot pressing) before it enters the hot press. The purpose is to achieve initial bonding between the plies, giving the mat enough initial strength for handling and loading into the hot press, preventing it from collapsing during hot pressing.
Hot Press
The core equipment of the production line. Applies high temperature and high pressure to the mat, curing the adhesive quickly and bonding the multiple veneer piles firmly into a solid panel – plywood.
Types: Classified by the number of openings:
Multi-Opening Hot Press: The 20-layer press mentioned earlier belongs to this type. High efficiency, suitable for large-scale production.
Single-Opening Hot Press: Suitable for small panels or special sizes.
Modern hot presses are typically integrated with intelligent control systems to precisely control temperature, pressure, and time profiles.
Automatic Loader/Unloader
Works in conjunction with multi-opening hot presses. Automatically loads the mat into each press opening and unloads the finished panels after pressing, enabling continuous production and ensuring safety.
Panel Saw / Trimming and Edging Line (Sizing & Sanding Line)
Trims the rough-edged panels to standard sizes (e.g., 1220x2440mm), removing irregular edges.
Process: Typically involves first passing through a double-edged trim saw for longitudinal cutting, followed by a cross-cut saw for transverse cutting.
Sanding Machine / Wide Belt Sander
Sands and polishes the surface of the plywood to eliminate surface irregularities, pre-cured layers, and other defects, obtaining a smooth and flat surface suitable for subsequent laminating, painting, or direct use.
Types: Wide-belt sanders (typically with three heads: coarse, fine, and finish sanding) are the most common type.
A complete, modern plywood production line is an integration of material handling equipment (conveyors, turners), processing machinery (peeling, sawing, sanding), and core forming equipment (drying, pressing). The higher the degree of automation, the greater the requirement for interlinked control systems and intelligent logistics between the equipment, ultimately achieving high efficiency, high output, and stable product quality.
Core Components of the hot press machine
This production line is not a single machine but a complete system, primarily consisting of:
1. Automatic Laying-up Unit: Automatically applies glue, assembles veneers, and performs pre-pressing, ensuring uniform mat thickness and tight structure.
2. 20-Layer Intelligent Hot Press: The heart of the line. Utilizes multi-cylinder balanced pressure technology to ensure even pressure across each platen. Equipped with an advanced PLC and touchscreen control system.
3. Intelligent Control System: The brain of the line. Integrates PLC, HMI touchscreen, and temperature/pressure sensors. It allows for pre-setting and storing various production process recipes.
4. Hydraulic System: Provides stable and powerful force for the hot press, with fast response and excellent pressure-holding performance.
5. Heating System: Typically uses thermal oil or steam for high thermal efficiency and precise, uniform temperature control.
6. Automatic Loading/Unloading Machine: Synchronizes with the hot press to automatically feed the mat and unload the finished panel, enabling continuous production and ensuring operational safety.
Workflow of the hot press machine
1. Feeding & Laying: Dried veneers are coated with glue and then precisely stacked into a mat by the automatic laying machine.
2. Loading & Feeding: A manipulator accurately feeds the mat into each of the 20 layers of the hot press.
3. Hot Pressing & Forming: Under the control of the intelligent system, the hot press applies pressure and heat according to pre-set curves for temperature, pressure, and time, curing the adhesive to form a strong plywood panel.
4. Unloading & Discharging: After pressing, the loading/unloading system automatically removes the finished panels from each layer and transfers them to the next process (e.g., trimming, sanding).

Key Advantages & Features
High Production Efficiency: The 20-layer design allows for pressing 20 panels simultaneously, offering several times the capacity of ordinary single-opening or multi-opening presses, meeting large-scale production demands.
Superior Product Quality: The intelligent temperature control and balanced pressure system ensure extremely uniform heating and pressure for every layer and every panel, resulting in consistent thickness, high internal bond strength, and minimal warpage.
High Automation & Intelligence: Fully automated process from laying to loading/unloading, drastically reducing manual intervention. The PLC system precisely controls the entire pressing cycle and records production data for easy quality traceability.
Energy Efficient & Eco-Friendly: Advanced heating system and insulation design effectively reduce heat loss. Precise gluing technology helps minimize adhesive consumption, complying with environmental standards.
User-Friendly & Safe Operation: Intuitive touchscreen interface allows easy parameter setting and switching. Comprehensive safety interlock devices and automated handling systems greatly enhance operational safety.
Robust & Durable: Key components are manufactured from high-quality steel and advanced processes, ensuring long-term, stable operation under high temperature and pressure conditions.
Technical Parameters (can be customized)
Number of Press Openings: 20 Layers
Maximum Pressing Size (L x W): 1220mm x 2440mm (4' x 8') or Customized
Total Pressing Force: Customizable (e.g., 3000 Ton)
Platen Temperature Range: Room Temperature - 200°C (Adjustable)
Heating Method: Thermal Oil / Steam / Electric Heating
Control System: Fully Automatic PLC + Touchscreen Control
Overall Dimension: Dependent on specific configuration.
Applications
Primarily used for producing various specifications and thicknesses of construction plywood formwork, furniture-grade plywood, decorative plywood, etc. It is an ideal investment for large plywood manufacturing companies, wood industry groups, and building material producers.
Customize Your Plywood Solution Now! Plant layout design, on-site training & global logistics support – Build your competitive plywood brand today!
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com