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8ft Width Continuous Press with 12 Pressure Zones

This product is a high-performance 8-foot wide continuous press, with its core advantage being the advanced 12-zone independent pressure control system. This precise pressure regulation capability ensures extremely uniform pressure distribution across the entire 8-foot width, enabling the effective production of high-quality panels with minimal thickness tolerance and superior density consistency.

The machine operates on a continuous principle, achieving full automation from feeding, pre-heating, pressing, to cooling and discharge, which significantly enhances production efficiency and is ideal for large-scale, continuous operation. The 12 pressure zones can be independently programmed and precisely adjusted based on different process requirements (e.g., for different raw materials, thicknesses, or densities). This allows a single press to flexibly adapt to the production of a variety of products, greatly increasing equipment utilization and economic value.
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  • MINGHUNG


8ft Width Continuous Press with 12 Pressure Zones


Continuous Hot Press for OSB production
China Continuous Flat Hot press factory


What is an 8-Foot Wide, 12-Zone Continuous Press? 


This is a high-end, large-scale industrial continuous press. Two core parameters define its capabilities:

  8-Foot Width: Refers to an effective working width of approximately 2.44 meters (8 feet). It can produce extra-wide panels, meeting the demand for large-format boards in construction and furniture manufacturing, reducing the need for splicing and improving material utilization.

  12 Pressure Zones: Refers to the installation of 12 sets of independently controllable and adjustable hydraulic systems along the length of the press. This is the core embodiment of the equipment's advanced technology, enabling "precise micro-management" of the pressing process.

Simply put, it functions like a giant iron with "12 independent, precise hands," applying just the right amount of pressure to different sections of a wide, continuously moving "fabric" (the mat), ultimately producing perfect, uniform panels.


Core Components: How are the 12 Pressure Zones Achieved?  


The core mechanical structure of this press is similar to traditional continuous presses, but its hydraulic system is more complex and precise.

1.  Frame: A robust steel structure that supports all components and withstands immense working pressure.

Steel Frame for MINGHUNG MDF OSB Continuous Belt Pressing Machine
MINGHUNG PB MDF OSB Continuous Belt Press Frame


2.  Heating Platens: Long heating platens (often tens of meters) heated by thermal oil or steam, responsible for heating the mat. They are typically also divided into multiple temperature zones that work in synergy with the pressure zones.

Steel Belt for Continuous Belt Pressing Machine
MINGHUNG Continuous Belt Pressing


3.  Steel Belts: Two endless heavy-duty steel belts that grip and pull the mat through the entire press.

MINGHUNG MDF PB Continuous Calendering Press Production Line
Continuous Belt Press Accessories


4.  Hydraulic System - The Core:

      This is not a single hydraulic system, but 12 relatively independent hydraulic subsystems.

      Along the press length, there are 12 groups of hydraulic cylinders (each group may contain multiple cylinders). Each group is equipped with its own independent pressure sensors, servo valves, and control system.

      These 12 groups of hydraulic cylinders constitute the so-called "12 pressure zones."

Cylinder for Continuous Belt Pressing for Particleboard Production Line
Hydraulic station for MINGHUNG PB MDF OSB Continuous Belt Press

Workflow and the Synergistic Role of the 12 Pressure Zones  


The coordinated work of the pressure zones is key to achieving high-quality pressing. Its workflow is as follows:

1. Infeed Zone (Typically Zones 1-3): High-Pressure Calendering & Rapid Forming

  Task: The loose mat has just entered the press and needs to be rapidly compressed to the target thickness.

  Pressure Zone Role: The first few pressure zones (especially Zone 1) apply the highest pressure across the entire line, acting like a giant guillotine to instantly compact the mat. Pressure control here requires extremely fast response to establish the initial thickness.

2. Middle Zone (Typically Zones 4-9): Precise Pressure Adjustment, Deaeration & Curing

  Task: While maintaining thickness, promote resin melting and curing, and allow internal steam and volatiles to escape smoothly.

  Pressure Zone Role: This is the most critical and complex stage. The advantage of 12 pressure zones is fully utilized here:

      Adaptive Pressure Adjustment: If online detection systems detect a slight deviation in density or thickness on one side (e.g., the left side) of the panel, the control system can individually fine-tune the pressure in the corresponding pressure zones, achieving "compensation where needed," ensuring uniformity across the entire panel width.

      Optimized Deaeration: The pressure profile can be set in a "wave-like" pattern, slightly reducing pressure in specific areas to create escape channels for internal gases, preventing blistering or delamination.

      Stable Curing: Maintain stable and appropriate pressure in the main curing zone to ensure efficient heat transfer and complete resin cross-linking.

3. Outfeed Zone (Typically Zones 10-12): Pressure Reduction & Setting

  Task: The panel is mostly cured and needs gradual pressure release to exit the press smoothly.

  Pressure Zone Role: The pressure in the last few zones is reduced step by step. This prevents rapid "spring-back" or deformation of the panel due to sudden pressure release, resulting in more dimensionally stable finished products.


Advantages and Resulting Benefits  


  Unparalleled Thickness Uniformity: This is the most direct advantage of 12 pressure zones. Through precise pressure compensation across the full width and length, the thickness tolerance of the finished product can be controlled within a very small range (e.g., ±0.15mm), far superior to equipment with fewer pressure zones.

  Exceptional Product Quality & Consistency: Uniform pressure directly translates to uniform density distribution and consistent physical-mechanical properties (e.g., Internal Bond, Modulus of Rupture). The panel will not have issues like one side being hard and the other soft.

  High Material Utilization & Yield:

      Due to uniform thickness, there is no need for extensive subsequent calibrating sanding, reducing the sanding allowance and directly saving raw materials.

      It almost eliminates waste caused by defects like thickness deviation or blistering due to uneven pressure, significantly increasing the product yield rate.

  Excellent Production Flexibility & Formulation Adaptability:

      When changing product specifications (e.g., thickness, density), one simply needs to load different pressure profile recipes, allowing for quick and easy switches.

      Capable of handling a wider range of raw materials, including recycled or mixed materials with varying flow and compression characteristics, by using customized pressure profiles to produce qualified products.

  Reduced Energy Consumption & Production Costs:

      Precise pressure application avoids "over-pressing," saving hydraulic energy consumption.

      Higher yield rates and lower sanding amounts directly reduce the production cost per unit product.




The 8-foot wide, 12-zone continuous press represents a manufacturing philosophy that pursues ultimate precision and maximum efficiency. It is not merely a "pressing" device but an intelligent system capable of "sensing" and "adapting." For manufacturers aiming to enter the high-end market, produce top-quality panels, and maintain a cost advantage in fierce competition, this investment is crucial.



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