MH-CHP
MINGHUNG
Continuous Pressing: Fiber mats move through the press at a constant speed without interruption. The press continuously feeds material at the inlet and discharges boards at the outlet, eliminating the downtime associated with opening/closing and loading/unloading in batch presses.
Unlimited Length: Theoretically, finished board length is limited only by downstream cross-cutting saws—not by the press itself (width is constrained by the press opening). This enables ultra-long board production and reduces downtime for length adjustments.
High Operating Speed: High-capacity presses typically run at high line speeds (e.g., >1,000 mm/s), combined with optimized hot-pressing processes, allowing massive board throughput per unit time.
Long Press Length: To ensure sufficient curing time and pressure distribution, high-capacity presses often feature extended pressing zones (>30 meters, even >50 meters). Length is the physical foundation for high quality and output.
Steel Belt System: Two high-strength, heat-resistant steel belts (upper and lower) circulate within the press, continuously carrying fiber mats through the pressing zone. Belt flatness, tension control, and thermal conductivity are critical.
Zoned Pressure System (Hydraulic Cylinders/Pads):
Multiple Zones: Long high-capacity presses are divided into dozens or even hundreds of independently controlled pressure zones.
Pressure Gradient Control: Each zone applies precise, independent pressure to create tailored pressure profiles (high-pressure zones, decompression zones) along the press length, adapting to mat density, thickness, moisture changes, and degassing needs.
Thickness Control: Precise control of individual zone openings (steel belt gap) ensures accurate thickness and uniform cross-sectional density.
Efficient Heating System:
Hot Oil/Steam Heating: Heating plates are typically heated by circulating thermal oil or steam, ensuring stable, uniform heat across the press length and width.
Effective Heat Transfer: Steel belts rapidly and efficiently transfer heat to the mat surface. High-capacity presses require powerful heat sources and efficient heat exchange systems.
Advanced Drive System: High-power main motors and precision transmission ensure smooth, synchronous steel belt operation at high speeds without slippage.
Intelligent Control System:
Integrated Control: Robust PLC/DCS systems centrally control all zone pressures, openings, temperatures, speeds, etc.
Model-Based Control: Real-time optimization based on preset process models (considering board type, thickness, target density, raw material properties).
Data Acquisition & Analysis: Real-time monitoring of operational parameters enables process optimization, quality traceability, and predictive maintenance.
Extremely High Single-Line Capacity: Core advantage enabling annual outputs of hundreds of thousands of cubic meters (e.g., >300,000 m³/year).
Economies of Scale: High output reduces per-unit costs for equipment depreciation, energy, and labor.
Stable Product Quality: Continuous processing (stable temp/pressure/speed) ensures consistent thickness tolerance, density distribution, mechanical properties, and surface quality with minimal batch variation.
High Automation: Minimizes manual intervention, reduces labor intensity, and improves safety.
Energy Efficiency Potential: Continuous operation avoids energy losses from repeated heating/cooling of platens ("breathing heat loss") in batch presses. Efficient heat recovery systems reuse waste heat.
Raw Material Flexibility: Advanced controls adapt to different wood species, resin contents, and moisture levels to produce varied MDF specifications.
The Continuous Press is the core and defining equipment in modern Medium Density Fiberboard (MDF) production lines. It has revolutionized the manufacturing of wood-based panels, significantly enhancing efficiency, quality, and output.
Traditional Multi-Opening Presses: Employ batch production. Prepared mats are loaded into a multi-platen hot press, which closes to apply pressure and heat for curing. After the cycle time, the press opens to unload the board. Each cycle produces only one board, creating an efficiency bottleneck.
Continuous Press: Employs continuous production. The formed mat (a continuous "fiber blanket") enters the press inlet uninterruptedly. It is continuously pressed, heated, and cured between two massive, circulating steel belts, and a continuous strip of cured board exits the press outlet. The entire process is a seamless flow line with no stops.
Working Principle of the Continuous Press
1. Mat Infeed: The continuous mat formed by the forming system, after pre-pressing, weighing, and metal detection, is fed into the inlet of the continuous press by an accelerator conveyor.
2. Steel Belt Conveyance: Two parallel, high-strength alloy steel belts (typically 2-3mm thick) are positioned above and below the mat. The belts circulate, driven by drive rollers and tensioned by tensioning rollers.
3. Pressing: Upon entering the press, the mat is gripped between the upper and lower steel belts. Inside the press, a large array of hydraulic cylinders (or oil cylinders) applies pressure. These cylinders act through press beams or press rollers to uniformly transfer pressure to the outer surfaces of the steel belts, and consequently, to the mat within. Pressure is typically applied in several zones (e.g., high-pressure inlet zone, main pressure zone, low-pressure holding zone) and controlled precisely according to process requirements.
4. Heating: Heating channels, integrated within the steel belt support structure or the press beams/rollers, circulate high-temperature thermal oil (most common) or steam. Heat is efficiently and uniformly transferred through the steel belts to the mat, rapidly curing the resin.
5. Curing and Forming: Under the combined action of pressure and heat, the mat is conveyed at a constant speed while gripped between the steel belts through the press interior (typically 20 meters to over 60 meters long). During this passage, the resin between the fibers undergoes curing, gradually transforming the mat into a solid strip of MDF.
6. Board Strip Outfeed: The fully cured MDF board strip exits the press outlet continuously and proceeds to subsequent processes like cooling, calibrating sanding, and cutting.
High-capacity MDF continuous presses are foundational to modern large-scale MDF production. Through continuous pressing, extended length, precise zoned control, efficient heating, and intelligent automation, they deliver unparalleled output and consistent quality, enabling significant economies of scale. They epitomize the modern wood-based panel industry's pursuit of high output, efficiency, quality, and low resource consumption.
MINGHUNG OSB&MDF Machinery Equipment Manufacture Co., Ltd. Located in Xiaogezhuang Industrial Zone, Yitang Town, Lanshan District, Linyi City.
MINGHUNG Company provides a complete set of process design, electrical design and manufacturing, We can provide one-stop complete factory solutions for wood-based panel customers. MINGHUNG product series include medium density fiberboard (MDF), high density fiberboard (HDF), particle board (PB), oriented strand board (OSB), veneerable super strong particle board (LSB) multi-layer heat press production line, double-sided fixed thickness broadband Sanding machine, gauge saw, mechanical paving machine, air flow paving machine, channel dryer, super screen, post-processing system artificial panel cooling system, turning machine, stacker, storage and transportation trolley. etc. For artificial panel equipment mainly involved in particleboard, medium density fiberboard, oriented strand board, multilayer plywood machinery. In addition to providing a complete new brand production line, MINGHUNG is a leading manufacturer of regulating glue and glue mixing systems.,created many glue blending technologies and promoted them worldwide, and is also a supplier of innovative online and laboratory quality control equipment.
✅ Transform Your Production Now!
Request Your Customized Quote & Technical Proposal:
Call +86 18769900191, +86 15805496117, +86 18954906501 or 【Live Chat】
Get a productivity upgrade plan within 24h
Continuous Pressing: Fiber mats move through the press at a constant speed without interruption. The press continuously feeds material at the inlet and discharges boards at the outlet, eliminating the downtime associated with opening/closing and loading/unloading in batch presses.
Unlimited Length: Theoretically, finished board length is limited only by downstream cross-cutting saws—not by the press itself (width is constrained by the press opening). This enables ultra-long board production and reduces downtime for length adjustments.
High Operating Speed: High-capacity presses typically run at high line speeds (e.g., >1,000 mm/s), combined with optimized hot-pressing processes, allowing massive board throughput per unit time.
Long Press Length: To ensure sufficient curing time and pressure distribution, high-capacity presses often feature extended pressing zones (>30 meters, even >50 meters). Length is the physical foundation for high quality and output.
Steel Belt System: Two high-strength, heat-resistant steel belts (upper and lower) circulate within the press, continuously carrying fiber mats through the pressing zone. Belt flatness, tension control, and thermal conductivity are critical.
Zoned Pressure System (Hydraulic Cylinders/Pads):
Multiple Zones: Long high-capacity presses are divided into dozens or even hundreds of independently controlled pressure zones.
Pressure Gradient Control: Each zone applies precise, independent pressure to create tailored pressure profiles (high-pressure zones, decompression zones) along the press length, adapting to mat density, thickness, moisture changes, and degassing needs.
Thickness Control: Precise control of individual zone openings (steel belt gap) ensures accurate thickness and uniform cross-sectional density.
Efficient Heating System:
Hot Oil/Steam Heating: Heating plates are typically heated by circulating thermal oil or steam, ensuring stable, uniform heat across the press length and width.
Effective Heat Transfer: Steel belts rapidly and efficiently transfer heat to the mat surface. High-capacity presses require powerful heat sources and efficient heat exchange systems.
Advanced Drive System: High-power main motors and precision transmission ensure smooth, synchronous steel belt operation at high speeds without slippage.
Intelligent Control System:
Integrated Control: Robust PLC/DCS systems centrally control all zone pressures, openings, temperatures, speeds, etc.
Model-Based Control: Real-time optimization based on preset process models (considering board type, thickness, target density, raw material properties).
Data Acquisition & Analysis: Real-time monitoring of operational parameters enables process optimization, quality traceability, and predictive maintenance.
Extremely High Single-Line Capacity: Core advantage enabling annual outputs of hundreds of thousands of cubic meters (e.g., >300,000 m³/year).
Economies of Scale: High output reduces per-unit costs for equipment depreciation, energy, and labor.
Stable Product Quality: Continuous processing (stable temp/pressure/speed) ensures consistent thickness tolerance, density distribution, mechanical properties, and surface quality with minimal batch variation.
High Automation: Minimizes manual intervention, reduces labor intensity, and improves safety.
Energy Efficiency Potential: Continuous operation avoids energy losses from repeated heating/cooling of platens ("breathing heat loss") in batch presses. Efficient heat recovery systems reuse waste heat.
Raw Material Flexibility: Advanced controls adapt to different wood species, resin contents, and moisture levels to produce varied MDF specifications.
The Continuous Press is the core and defining equipment in modern Medium Density Fiberboard (MDF) production lines. It has revolutionized the manufacturing of wood-based panels, significantly enhancing efficiency, quality, and output.
Traditional Multi-Opening Presses: Employ batch production. Prepared mats are loaded into a multi-platen hot press, which closes to apply pressure and heat for curing. After the cycle time, the press opens to unload the board. Each cycle produces only one board, creating an efficiency bottleneck.
Continuous Press: Employs continuous production. The formed mat (a continuous "fiber blanket") enters the press inlet uninterruptedly. It is continuously pressed, heated, and cured between two massive, circulating steel belts, and a continuous strip of cured board exits the press outlet. The entire process is a seamless flow line with no stops.
Working Principle of the Continuous Press
1. Mat Infeed: The continuous mat formed by the forming system, after pre-pressing, weighing, and metal detection, is fed into the inlet of the continuous press by an accelerator conveyor.
2. Steel Belt Conveyance: Two parallel, high-strength alloy steel belts (typically 2-3mm thick) are positioned above and below the mat. The belts circulate, driven by drive rollers and tensioned by tensioning rollers.
3. Pressing: Upon entering the press, the mat is gripped between the upper and lower steel belts. Inside the press, a large array of hydraulic cylinders (or oil cylinders) applies pressure. These cylinders act through press beams or press rollers to uniformly transfer pressure to the outer surfaces of the steel belts, and consequently, to the mat within. Pressure is typically applied in several zones (e.g., high-pressure inlet zone, main pressure zone, low-pressure holding zone) and controlled precisely according to process requirements.
4. Heating: Heating channels, integrated within the steel belt support structure or the press beams/rollers, circulate high-temperature thermal oil (most common) or steam. Heat is efficiently and uniformly transferred through the steel belts to the mat, rapidly curing the resin.
5. Curing and Forming: Under the combined action of pressure and heat, the mat is conveyed at a constant speed while gripped between the steel belts through the press interior (typically 20 meters to over 60 meters long). During this passage, the resin between the fibers undergoes curing, gradually transforming the mat into a solid strip of MDF.
6. Board Strip Outfeed: The fully cured MDF board strip exits the press outlet continuously and proceeds to subsequent processes like cooling, calibrating sanding, and cutting.
High-capacity MDF continuous presses are foundational to modern large-scale MDF production. Through continuous pressing, extended length, precise zoned control, efficient heating, and intelligent automation, they deliver unparalleled output and consistent quality, enabling significant economies of scale. They epitomize the modern wood-based panel industry's pursuit of high output, efficiency, quality, and low resource consumption.
MINGHUNG OSB&MDF Machinery Equipment Manufacture Co., Ltd. Located in Xiaogezhuang Industrial Zone, Yitang Town, Lanshan District, Linyi City.
MINGHUNG Company provides a complete set of process design, electrical design and manufacturing, We can provide one-stop complete factory solutions for wood-based panel customers. MINGHUNG product series include medium density fiberboard (MDF), high density fiberboard (HDF), particle board (PB), oriented strand board (OSB), veneerable super strong particle board (LSB) multi-layer heat press production line, double-sided fixed thickness broadband Sanding machine, gauge saw, mechanical paving machine, air flow paving machine, channel dryer, super screen, post-processing system artificial panel cooling system, turning machine, stacker, storage and transportation trolley. etc. For artificial panel equipment mainly involved in particleboard, medium density fiberboard, oriented strand board, multilayer plywood machinery. In addition to providing a complete new brand production line, MINGHUNG is a leading manufacturer of regulating glue and glue mixing systems.,created many glue blending technologies and promoted them worldwide, and is also a supplier of innovative online and laboratory quality control equipment.
✅ Transform Your Production Now!
Request Your Customized Quote & Technical Proposal:
Call +86 18769900191, +86 15805496117, +86 18954906501 or 【Live Chat】
Get a productivity upgrade plan within 24h
