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MH-CHP
MINGHUNG
This 40-meter continuous hot press production line is a high-end, high-efficiency industrial-grade solution for hot pressing and curing. Its core design is centered around a precise and rapid 120-second (2-minute) curing cycle. The line achieves full automation and continuity from feeding, mat forming, pre-heating, hot pressing & curing, cooling, to discharging. It is engineered for large-scale, high-quality production scenarios, significantly boosting output, stabilizing product quality, and reducing unit production costs.
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The Synergy of 40-Meter Length and 120-Second Curing
Distance Equals Time: The 40-meter effective hot press zone is not arbitrarily set but is precisely coupled with the 120-second curing time and the set line speed. As the line runs at a specific constant speed, the material perfectly undergoes the required 120-second hot press curing process as it travels through the 40-meter distance.
Simplified Formula: Line Speed (m/min) ≈ 40 meters / (120 seconds / 60) = 20 m/min. This means, under ideal conditions, the line can operate at a stable speed of approximately 20 meters per minute, ensuring every single product receives the exact 120-second cure.
Core Advantage: This design eliminates the inherent "waiting time" of traditional intermittent presses, achieving true non-stop flow production. Its output capacity is multiple times higher than that of intermittent presses with equivalent curing requirements.
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Main Components
A continuous hot press is a complex mechatronic system primarily comprising the following key components:
1. Frame
Function: A massive steel structure that supports all core components, such as heating platens and hydraulic cylinders. It must possess extremely high strength and rigidity to withstand immense working pressure without deforming.
Description: Typically a box-type beam structure, serving as the fundamental skeleton of the entire equipment.
2. Heating Platens
Function: The core heating elements. These massive steel plates have internal flow channels for thermal oil or steam, transferring heat to the mat passing between them.
Description: The 40-meter length is usually achieved by joining multiple heating platens, which are precision-machined to ensure a smooth surface across the seams. The key feature is zoned temperature control, where the entire 40-meter area is divided into multiple independent temperature control zones to achieve a precise temperature profile.
3. Steel Belt System
Function: To carry and pull the mat through the hot press while uniformly transferring the pressure from the heating platens to the mat.
Description: Two endless high-strength alloy steel belts that run along the surfaces of the upper and lower heating platens. The steel belts must be heat-resistant, have high tensile strength, and exhibit excellent flatness.
4. Hydraulic System
Function: To provide powerful, uniform, and precisely controllable pressure for the hot press.
Description: Comprises dozens or even hundreds of hydraulic cylinders, oil pumps, valve stations, and piping. These cylinders are typically arranged in zones, allowing for different pressure profiles along the length and width of the press (e.g., higher pressure at the inlet, lower pressure at the outlet).
5. Drive System
Function: To drive the two steel belts at a constant and synchronized speed.
Description: Includes high-power motors, reducers, drive rollers, and tension rollers. The tension rollers maintain proper belt tension to prevent slipping or wrinkling. The stability of this system is directly responsible for the accuracy of the curing time.
6. Lubrication & Cleaning System
Function: To ensure smooth operation between the steel belts and heating platens and prevent the buildup of contaminants like resin.
Description:
Lubrication System: Sprays a food-grade release agent or lubricant between the steel belts and heating platens to reduce friction and prevent sticking.
Cleaning System: Continuously cleans the steel belt surfaces using scrapers and baking devices to maintain their smoothness.
7. Control System
Function: The brain of the entire hot press, monitoring and regulating all parameters in real-time.
Description: Based on a PLC and touchscreen interface, it centrally controls temperature, pressure, speed (core), belt tension, lubrication, etc. It ensures all subsystems work in harmony to achieve the set process targets (such as the 120-second cure).
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Application Video
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Internal Workflow
1. Infeed Section - High-Pressure Calendering
The continuous mat from the former is immediately gripped by the upper and lower steel belts at the press inlet and subjected to the highest pressure from the hydraulic system.
Purpose: To rapidly compact the loose mat to the predetermined target thickness.
2. Heating & Curing Section - Zoned Temperature Control & Constant Pressure
The gripped mat is pulled at a uniform speed through the entire 40-meter heating zone by the steel belts.
Temperature Control: The mat passes sequentially through different temperature zones of the heating platens, typically experiencing a temperature profile of "pre-heating - heating up - constant temperature curing - cooling down". This process provides the precise energy required for the resin cure within the mat.
Pressure Control: After initial thickness calibration, the pressure is reduced to an appropriate level and maintained steadily to preserve thickness, facilitate heat transfer, and allow moisture and volatiles to escape.
Core Process: In this zone, the mat travels the "fixed distance of 40 meters" at a "constant speed", and the time it experiences is precisely controlled to be 120 seconds, ensuring the curing reaction is fully completed.
3. Outfeed Section - Pressure Reduction & Setting
As the panel moves towards the press outlet, the hydraulic pressure is gradually reduced.
At this point, the panel is already cured and has sufficient strength and rigidity to support its own weight.
4. Mat Separation & Belt Cleaning
At the press outlet, the cured panel separates from the upper and lower steel belts.
The steel belts pass through cleaning devices (e.g., scrapers) on their return loop to remove any adhering resin or debris and are lubricated, preparing for the next cycle.
5. Finished Panel Exit
The continuously cured panel exits the press and is conveyed to downstream cooling, sawing, and stacking stations.
The 40-meter continuous hot press, through its precise components, creates a fixed-length, temperature-controlled, pressure-adjustable enclosed environment. By controlling the speed at which the material passes through this environment, it ultimately achieves precise control over the curing time, thereby ensuring stable product quality and high production efficiency.
|
Specific Mechanism for Achieving the 120-Second Cure
The "120-second cure" is not an isolated time setting, but rather the final result of the precise synergy of three core elements—temperature, pressure, and time—across the 40-meter production line. Its realization is a dynamic and controlled process.
Core Principle: To ensure that as the material passes through the 40-meter hot press zone, it receives exactly the thermal energy and pressure required to complete the full curing reaction (typically resin cross-linking), with this action time precisely controlled at 120 seconds.
The Three Pillars for Achieving This Goal:
1. Precise Temperature Control - Providing Curing Energy
Zoned Heating & Temperature Profile: The 40-meter long heating platens are not a uniform, constant temperature body. Instead, they are divided into multiple independent heating zones .
Inlet Zone: Set to a lower temperature to prevent the surface resin from curing prematurely ("pre-cure"), which would affect internal steam discharge and mat density.
Heating Zone/Constant Temperature Zone: The temperature rapidly increases and is maintained within the optimal range for the resin's curing reaction (e.g., 180°C - 200°C). This is the stage that provides the primary energy for curing.
Precise Temperature Control: Each heating zone is controlled via thermocouples and PLC in a closed loop, ensuring minimal temperature fluctuation (±2°C), providing a reliable thermal environment for the stable 120-second cure.
2. Stable Pressure Application - Ensuring Product Structure and Density
Pressure Profile Control: Pressure also follows a preset curve.
High-Pressure Zone (Inlet): High pressure is applied to rapidly compact the loose mat to the predetermined thickness.
Medium/Low-Pressure Zone (Main Curing Zone): The pressure is reduced and maintained steadily to maintain mat thickness, facilitate heat transfer and resin flow, while allowing moisture and volatiles to escape.
Synergy of Pressure and Temperature: Stable pressure ensures uniform heat conduction through the mat. Uneven pressure causes local density variations, leading to different heat conduction rates, resulting in some areas being under-cured (not fully cured within 120 seconds) or over-cured.
3. Constant Production Line Speed - Controlling Cure Time
the production line speed V = L / T = 40 meters / 2 minutes = 20 meters/minute.
Synchronized Control: The central control system ensures that the entire production line, from feeding and forming to hot pressing and discharging, operates synchronously at this constant speed (e.g., 20 m/min). Once the speed is set, the processing time for each piece of material within the hot press zone is locked at 120 seconds.
Summary of the Implementation Process:
The operator sets the target curing time of 120 seconds on the central control screen (or directly sets the line speed to 20 m/min). The PLC then coordinates based on this command:
The drive system maintains a constant speed.
The heating system maintains precise temperatures in each zone.
The hydraulic system executes the preset pressure profile.
|
Technical Features & Advantages
Exceptional Production Efficiency: Continuous operation with no interruptions results in daily output far surpassing that of similar-sized shuttle or batch presses.
Superior Product Quality:
Precise 120-second curing ensures high consistency in physical properties (e.g., density, strength, internal bond) across all batches.
Uniform temperature and pressure distribution ensure minimal thickness tolerance and a smooth, flat surface finish.
Significant Energy Savings: Compared to intermittent pressing, continuous hot pressing offers higher thermal efficiency, avoiding massive heat loss from repeated opening and closing of platens.
High Automation & Low Labor Cost: Full automation from feeding to discharge requires only minimal personnel for monitoring, drastically reducing dependence on skilled labor and associated costs.
Flexibility: By adjusting line speed, temperature, and pressure parameters, the line can be adapted to produce products of different thicknesses, densities, and raw material formulations within a certain range.
Environmentally Friendly: High energy efficiency and stable processes reduce waste, aligning with modern green manufacturing standards.
|
Primary Applications
Wood-Based Panel Manufacturing: Production of Medium-Density Fiberboard, Particleboard, Oriented Strand Board.
Composite Materials Industry: Forming of Wood-Plastic Composite Boards, Bamboo-Wood Composite Boards, High-Performance Engineering Plastic Sheets.
Building Materials Industry: Continuous pressing of Fire-Resistant Panels, Partition Walls, Decorative Moldings.
Automotive Interior Industry: Production of substrate materials for door panels, trunk spacers, and other interior components.
|
Our Company
Shandong MINGHUNG OSB&MDF Machinery Equipment Manufacturing Co.,Ltd. was founded in 1983, specializes in continuous press solutions for over 40 years.
MINGHUNG is a leading company in the industry of OSB&MDF making machine. With a strongfocus on producing high-quality machinery, we specialize in manufacturing thecomplete production line of Medium density fiberboard (MDF), High densityfiberboard (HDF),Particle board (PB), Oriented strand board (OSB) , Veneerable super strong particle board (LSB),Laminated board and veneer.
|
Photos of Shipping
Upgrade your production line now!
We provide global installation support and technical training, 2-year machine warranty, and 24-hour online response .
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
This 40-meter continuous hot press production line is a high-end, high-efficiency industrial-grade solution for hot pressing and curing. Its core design is centered around a precise and rapid 120-second (2-minute) curing cycle. The line achieves full automation and continuity from feeding, mat forming, pre-heating, hot pressing & curing, cooling, to discharging. It is engineered for large-scale, high-quality production scenarios, significantly boosting output, stabilizing product quality, and reducing unit production costs.
|
The Synergy of 40-Meter Length and 120-Second Curing
Distance Equals Time: The 40-meter effective hot press zone is not arbitrarily set but is precisely coupled with the 120-second curing time and the set line speed. As the line runs at a specific constant speed, the material perfectly undergoes the required 120-second hot press curing process as it travels through the 40-meter distance.
Simplified Formula: Line Speed (m/min) ≈ 40 meters / (120 seconds / 60) = 20 m/min. This means, under ideal conditions, the line can operate at a stable speed of approximately 20 meters per minute, ensuring every single product receives the exact 120-second cure.
Core Advantage: This design eliminates the inherent "waiting time" of traditional intermittent presses, achieving true non-stop flow production. Its output capacity is multiple times higher than that of intermittent presses with equivalent curing requirements.
|
Main Components
A continuous hot press is a complex mechatronic system primarily comprising the following key components:
1. Frame
Function: A massive steel structure that supports all core components, such as heating platens and hydraulic cylinders. It must possess extremely high strength and rigidity to withstand immense working pressure without deforming.
Description: Typically a box-type beam structure, serving as the fundamental skeleton of the entire equipment.
2. Heating Platens
Function: The core heating elements. These massive steel plates have internal flow channels for thermal oil or steam, transferring heat to the mat passing between them.
Description: The 40-meter length is usually achieved by joining multiple heating platens, which are precision-machined to ensure a smooth surface across the seams. The key feature is zoned temperature control, where the entire 40-meter area is divided into multiple independent temperature control zones to achieve a precise temperature profile.
3. Steel Belt System
Function: To carry and pull the mat through the hot press while uniformly transferring the pressure from the heating platens to the mat.
Description: Two endless high-strength alloy steel belts that run along the surfaces of the upper and lower heating platens. The steel belts must be heat-resistant, have high tensile strength, and exhibit excellent flatness.
4. Hydraulic System
Function: To provide powerful, uniform, and precisely controllable pressure for the hot press.
Description: Comprises dozens or even hundreds of hydraulic cylinders, oil pumps, valve stations, and piping. These cylinders are typically arranged in zones, allowing for different pressure profiles along the length and width of the press (e.g., higher pressure at the inlet, lower pressure at the outlet).
5. Drive System
Function: To drive the two steel belts at a constant and synchronized speed.
Description: Includes high-power motors, reducers, drive rollers, and tension rollers. The tension rollers maintain proper belt tension to prevent slipping or wrinkling. The stability of this system is directly responsible for the accuracy of the curing time.
6. Lubrication & Cleaning System
Function: To ensure smooth operation between the steel belts and heating platens and prevent the buildup of contaminants like resin.
Description:
Lubrication System: Sprays a food-grade release agent or lubricant between the steel belts and heating platens to reduce friction and prevent sticking.
Cleaning System: Continuously cleans the steel belt surfaces using scrapers and baking devices to maintain their smoothness.
7. Control System
Function: The brain of the entire hot press, monitoring and regulating all parameters in real-time.
Description: Based on a PLC and touchscreen interface, it centrally controls temperature, pressure, speed (core), belt tension, lubrication, etc. It ensures all subsystems work in harmony to achieve the set process targets (such as the 120-second cure).
|
Application Video
|
Internal Workflow
1. Infeed Section - High-Pressure Calendering
The continuous mat from the former is immediately gripped by the upper and lower steel belts at the press inlet and subjected to the highest pressure from the hydraulic system.
Purpose: To rapidly compact the loose mat to the predetermined target thickness.
2. Heating & Curing Section - Zoned Temperature Control & Constant Pressure
The gripped mat is pulled at a uniform speed through the entire 40-meter heating zone by the steel belts.
Temperature Control: The mat passes sequentially through different temperature zones of the heating platens, typically experiencing a temperature profile of "pre-heating - heating up - constant temperature curing - cooling down". This process provides the precise energy required for the resin cure within the mat.
Pressure Control: After initial thickness calibration, the pressure is reduced to an appropriate level and maintained steadily to preserve thickness, facilitate heat transfer, and allow moisture and volatiles to escape.
Core Process: In this zone, the mat travels the "fixed distance of 40 meters" at a "constant speed", and the time it experiences is precisely controlled to be 120 seconds, ensuring the curing reaction is fully completed.
3. Outfeed Section - Pressure Reduction & Setting
As the panel moves towards the press outlet, the hydraulic pressure is gradually reduced.
At this point, the panel is already cured and has sufficient strength and rigidity to support its own weight.
4. Mat Separation & Belt Cleaning
At the press outlet, the cured panel separates from the upper and lower steel belts.
The steel belts pass through cleaning devices (e.g., scrapers) on their return loop to remove any adhering resin or debris and are lubricated, preparing for the next cycle.
5. Finished Panel Exit
The continuously cured panel exits the press and is conveyed to downstream cooling, sawing, and stacking stations.
The 40-meter continuous hot press, through its precise components, creates a fixed-length, temperature-controlled, pressure-adjustable enclosed environment. By controlling the speed at which the material passes through this environment, it ultimately achieves precise control over the curing time, thereby ensuring stable product quality and high production efficiency.
|
Specific Mechanism for Achieving the 120-Second Cure
The "120-second cure" is not an isolated time setting, but rather the final result of the precise synergy of three core elements—temperature, pressure, and time—across the 40-meter production line. Its realization is a dynamic and controlled process.
Core Principle: To ensure that as the material passes through the 40-meter hot press zone, it receives exactly the thermal energy and pressure required to complete the full curing reaction (typically resin cross-linking), with this action time precisely controlled at 120 seconds.
The Three Pillars for Achieving This Goal:
1. Precise Temperature Control - Providing Curing Energy
Zoned Heating & Temperature Profile: The 40-meter long heating platens are not a uniform, constant temperature body. Instead, they are divided into multiple independent heating zones .
Inlet Zone: Set to a lower temperature to prevent the surface resin from curing prematurely ("pre-cure"), which would affect internal steam discharge and mat density.
Heating Zone/Constant Temperature Zone: The temperature rapidly increases and is maintained within the optimal range for the resin's curing reaction (e.g., 180°C - 200°C). This is the stage that provides the primary energy for curing.
Precise Temperature Control: Each heating zone is controlled via thermocouples and PLC in a closed loop, ensuring minimal temperature fluctuation (±2°C), providing a reliable thermal environment for the stable 120-second cure.
2. Stable Pressure Application - Ensuring Product Structure and Density
Pressure Profile Control: Pressure also follows a preset curve.
High-Pressure Zone (Inlet): High pressure is applied to rapidly compact the loose mat to the predetermined thickness.
Medium/Low-Pressure Zone (Main Curing Zone): The pressure is reduced and maintained steadily to maintain mat thickness, facilitate heat transfer and resin flow, while allowing moisture and volatiles to escape.
Synergy of Pressure and Temperature: Stable pressure ensures uniform heat conduction through the mat. Uneven pressure causes local density variations, leading to different heat conduction rates, resulting in some areas being under-cured (not fully cured within 120 seconds) or over-cured.
3. Constant Production Line Speed - Controlling Cure Time
the production line speed V = L / T = 40 meters / 2 minutes = 20 meters/minute.
Synchronized Control: The central control system ensures that the entire production line, from feeding and forming to hot pressing and discharging, operates synchronously at this constant speed (e.g., 20 m/min). Once the speed is set, the processing time for each piece of material within the hot press zone is locked at 120 seconds.
Summary of the Implementation Process:
The operator sets the target curing time of 120 seconds on the central control screen (or directly sets the line speed to 20 m/min). The PLC then coordinates based on this command:
The drive system maintains a constant speed.
The heating system maintains precise temperatures in each zone.
The hydraulic system executes the preset pressure profile.
|
Technical Features & Advantages
Exceptional Production Efficiency: Continuous operation with no interruptions results in daily output far surpassing that of similar-sized shuttle or batch presses.
Superior Product Quality:
Precise 120-second curing ensures high consistency in physical properties (e.g., density, strength, internal bond) across all batches.
Uniform temperature and pressure distribution ensure minimal thickness tolerance and a smooth, flat surface finish.
Significant Energy Savings: Compared to intermittent pressing, continuous hot pressing offers higher thermal efficiency, avoiding massive heat loss from repeated opening and closing of platens.
High Automation & Low Labor Cost: Full automation from feeding to discharge requires only minimal personnel for monitoring, drastically reducing dependence on skilled labor and associated costs.
Flexibility: By adjusting line speed, temperature, and pressure parameters, the line can be adapted to produce products of different thicknesses, densities, and raw material formulations within a certain range.
Environmentally Friendly: High energy efficiency and stable processes reduce waste, aligning with modern green manufacturing standards.
|
Primary Applications
Wood-Based Panel Manufacturing: Production of Medium-Density Fiberboard, Particleboard, Oriented Strand Board.
Composite Materials Industry: Forming of Wood-Plastic Composite Boards, Bamboo-Wood Composite Boards, High-Performance Engineering Plastic Sheets.
Building Materials Industry: Continuous pressing of Fire-Resistant Panels, Partition Walls, Decorative Moldings.
Automotive Interior Industry: Production of substrate materials for door panels, trunk spacers, and other interior components.
|
Our Company
Shandong MINGHUNG OSB&MDF Machinery Equipment Manufacturing Co.,Ltd. was founded in 1983, specializes in continuous press solutions for over 40 years.
MINGHUNG is a leading company in the industry of OSB&MDF making machine. With a strongfocus on producing high-quality machinery, we specialize in manufacturing thecomplete production line of Medium density fiberboard (MDF), High densityfiberboard (HDF),Particle board (PB), Oriented strand board (OSB) , Veneerable super strong particle board (LSB),Laminated board and veneer.
|
Photos of Shipping
Upgrade your production line now!
We provide global installation support and technical training, 2-year machine warranty, and 24-hour online response .
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
