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Multi-Layer Tunnel Type Rapid Plywood Drying Equipment
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Multi-Layer Tunnel Type Rapid Plywood Drying Equipment

This product is a new-generation multi-layer tunnel-type continuous drying equipment, specially developed for plywood manufacturers to achieve large-volume, high-efficiency, and low-energy rapid drying of panels. The equipment adopts multi-layer independent conveying channels and a tunnel-type hot air circulation structure, allowing multiple sheets to enter the drying tunnel simultaneously. Under constant temperature and humidity conditions, the boards are dried quickly and uniformly, greatly shortening the drying cycle and improving turnover efficiency.

Compared with traditional chamber-type or single-layer dryers, this equipment occupies a smaller footprint while delivering much higher production capacity. It supports 24-hour uninterrupted continuous operation, making it especially suitable for large-scale industrial production in the wood-based panel manufacturing industry.
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  • MH-MD

  • MINGHUNG

Multi-Layer Tunnel Type Rapid Plywood Drying Equipment

MINGHUNG veneer drying machineEquipment Structure and Working Process


This equipment consists of six main parts: the feeding conveying system, multi-layer tunnel drying chamber, hot air generation and circulation system, dehumidification system, discharge cooling system, and electrical control system.

Veneer or plywood to be dried is fed layer-by-layer onto each conveying mesh belt via an automatic feeding device;

The boards move forward at a constant speed within the tunnel while high-temperature circulating hot air penetrates from both top and bottom;

Moist air is forcibly discharged by dehumidification fans, while fresh hot air is continuously supplemented;

After drying, the boards pass through a cooling zone at the discharge end and are automatically stacked after natural cooling.




Core Technical Advantages  


Multi-layer Synchronous Drying: Standard configuration includes 3 to 8 independent conveying channels, allowing simultaneous drying of multiple boards in a single pass, significantly multiplying production capacity.

Rapid and Uniform Drying: Adopts top-and-bottom opposed hot air blowing structure for even airflow distribution, ensuring consistent heating on both sides of the boards, eliminating defects such as warping, cracking, and color variation.

Precise Temperature and Humidity Control: Each layer is independently monitored for temperature and humidity with PID automatic adjustment. The drying curve is precisely controllable, with finished moisture content stably maintained between 6% and 12%.

High Efficiency and Energy-Saving Design: Fully enclosed insulated drying tunnel combined with a heat recovery system achieves a thermal efficiency of over 85%. Variable-frequency drive motors operate on demand, reducing unnecessary power consumption.

Quick Start-up and Easy Maintenance: Short preheating time, rapid cooling after shutdown, and an internal structure that facilitates cleaning and maintenance, minimizing downtime.


Technical Parameters (Reference Range)  


Parameter

Specification Range

Number of Layers

3 - 8 layers (customizable)

Effective Drying Width

1300mm - 2700mm

Applicable Board Thickness

1.5mm - 35mm

Working Temperature

80℃ - 180℃ (adjustable)

Conveying Speed

0.5 - 6 m/min (VFD adjustable)

Moisture Content Control Accuracy

±1.5%

Heat Source Types

Steam / Thermal Oil / Natural Gas / Biomass

Control System

PLC + 10-inch Touchscreen


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Applicable Materials  


Fast-growing wood veneers (poplar, eucalyptus, pine, etc.)

Imported timber veneers (okoume, mahogany, etc.)

Finished plywood panels (re-drying)

Construction formwork, packaging boards, furniture panels

Multi-layer solid wood composite flooring substrates


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Installation and After-Sales Service  


Complete no-load test run conducted before factory delivery to ensure quality

Provision of foundation drawings and installation instruction manuals

Engineers can be dispatched for on-site installation guidance, commissioning, and operator training

12-month whole-machine warranty; 18-month warranty on core components (fans, heaters)

Long-term supply of original spare parts and lifetime technical consultation

Customers are welcome to visit our factory for inspection and on-site material testing


About Us 


We are Shandong MINGHUNG Wood Based Panel Machinery Co.,Ltd China factory and manufacturer of full sets of Plywood machinery and Veneer machinery. With many years production experience, advanced production technology,experienced workers and professional engineers, we can offer you the suitable, good and strong machinery for you.

minghung new factory


Machines include:Veneer production line(Log debaker,Veneer peeling machine, Log loader,Automatic stacker),Blade sharpener,Veneer patching machine,Veneer dryer machine(Veneer roller dryer, Veneer mesh dryer, Veneer press dryer), Veneer gluing machine,Plywood lay-up machine, Veneer jointing machine, Plywood cold press, Hot press machine,Plywood edge trimming cutting machine, Sanding and calibrating machine, Plywood overturn machine, Lift table, and so on.

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For more information, welcome contact us, we will reply you quickly and offer working videos with you.


Whatsapp: +8618769900191  +8615589105786  +8618954906501

Email: osbmdfmachinery@gmail.com




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 +86-18769900191 / +86-15589105786
 
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  Fangcheng Town,Lanshan District,Linyi City,Shandong Province,China
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