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Product Description
The 2mm Thin Fiberboard Continuous Flat Press is a cutting-edge technological system specifically designed for the efficient and stable production of ultra-thin fiberboard (typically referring to boards in the 1.5-3.0mm thickness range). It represents the height of precision and advanced technology in the fiberboard manufacturing sector, overcoming the technical limitations of traditional multi-opening presses or standard continuous presses when producing extremely thin panels. This equipment not only enables the continuous, large-scale production of ultra-thin boards but also ensures they possess exceptional physical properties and surface quality, meeting the stringent demands of high-end markets.
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Working principle
The working principle of the 2mm Thin Fiberboard Continuous Flat Press is based on a precisely controlled, continuous dynamic hot-pressing process. Its core function is to sandwich a loose fiber mat between two parallel, continuously circulating steel belts under high temperature and pressure, conveying it through the press where resin curing and board formation into an ultra-thin panel occur simultaneously during transit. This entire process can be broken down into the following precise stages:
1. Fiber Forming and Mat Formation:
Dried and resinated fibers are formed into an exceptionally uniform and fluffy fiber mat via a high-precision air-forming or mechanical forming station on a moving conveyor.
Uniform formation is a prerequisite for producing 2mm thin board; any density variation can lead to warping or breaking in the final panel.
2. Mat Pre-pressing and Conditioning:
The fluffy fiber mat first enters a Gentle Pre-press. This stage does not aim for maximum compression but uses a mild, linearly increasing pressure to initially remove air, compact the mat into a stable state (much thicker than the final target), and impart sufficient initial strength (forming a "blank") to ensure it can be fed into the main press intact and without disruption.
3. Belt Clamping and Continuous Infeed:
The pre-pressed mat is accurately fed into the main press inlet. Here, it is clamped between two massive, circulating high-temperature steel belts.
The two belts converge at the press "nose," tightly enveloping the mat and synchronously carrying it into the main press section.
4. Zoned Hot-Pressing and Resin Curing (Core Stage):
Sandwiched between the steel belts, the mat continuously passes through multiple zones within the main press, each with independently controlled length, temperature, and pressure.
Infeed Zone: Pressure rapidly increases to its maximum, quickly compressing the mat close to the 2mm target thickness.
Main Pressing and Curing Zone: In this zone, the mat is subjected to stable high pressure. Simultaneously, heating platens (circulating with high-temperature thermal oil or steam) located behind the steel belts efficiently and uniformly transfer heat (typically 180-220°C) into the mat. Under this combined heat and pressure, the adhesives on the fibers rapidly cross-link, permanently bonding the wood fibers into a solid integral board.
Pressure Release and Calibration Zone: Pressure is precisely and gradually released in stages. This slow decompression process is critical for ultra-thin boards, allowing residual steam and stresses within the board to dissipate gently, effectively preventing "blowing," delamination, or spring-back deformation caused by instantaneous stress release, thereby ensuring precise 2mm thickness and dimensional stability.
5. Cooling and Setting:
A cooling system is typically integrated at the press discharge end to cool the steel belts and the now-solidified board. This sets the board's structure, further enhancing its strength, and prepares it for subsequent sawing.
6. Continuous Discharge and Post-Processing:
The continuous, cured, and cooled fiberboard ribbon is discharged from the press outlet and is subsequently cut to required market sizes by sawing equipment.
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Main components
This equipment is a highly integrated system, and its capability to produce 2mm thin board relies on the following key high-precision components:
1. High-Precision Forming Station: A core upstream equipment. It must ensure absolute uniformity of fiber distribution, which is the foundation for consistent density and preventing cracks in the thin board.
2. Gentle Pre-Press: Specifically designed for handling fragile ultra-thin mats, providing smooth, adjustable pressure profiles to avoid crushing the mat.
3. Continuous Flat Press Main Unit:
High-Rigidity Frame: A massive steel structure providing a stable, non-deforming foundation for the entire press, crucial for maintaining thickness accuracy.
Dual Steel Belt System: Two heat-resistant, high-strength alloy steel belts. As the direct contact carriers and heat transfer surfaces for the mat, their surface finish, smooth operation, and tension stability are paramount.
Heating Platen System: Zoned heating platens circulating thermal media, serving as the system's "heat source." For thin board production, temperature control must be more refined and responsive.
High-Response Hydraulic System: Comprises servo valves, pumping stations, and numerous zone-controlled hydraulic cylinders, acting as the system's "power source." It enables millisecond-level fine-tuning of pressure to adapt to the sensitive nature of ultra-thin mats.
Belt Drive and Tensioning System: Provides smooth traction and maintains optimal belt tension to prevent slippage or misalignment.
4. Micron-Level Thickness Control System: The brain and nervous system of the press. Includes online laser thickness gauges, pressure sensors, temperature sensors, and a high-speed PLC. It collects data in real-time and instantly adjusts hydraulic pressure and platen gap, achieving closed-loop control.
5. Central Control System: An integrated operating platform for setting and storing production recipes, monitoring the entire line's status, logging production data, and performing fault diagnosis.
6. Infeed and Discharge Synchronization Devices: Ensure precise synchronization between mat conveyance and steel belt speed, preventing pile-up or breakage at the inlet.
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Key technical features & advantages
Stable Production of Ultra-Thin Board: Core capability to continuously and mass-produce high-quality thin fiberboard with a thickness as low as 2mm, with a very high yield rate.
Exceptional Board Quality:
Minimal Thickness Tolerance: Thickness variation across the entire board can be controlled within ±0.1mm or less.
High Density Uniformity: Avoids density gradients, giving the thin board superior stiffness and flatness, resistant to warping.
Perfect Surface Condition: The surface is extremely smooth and fine, often requiring minimal sanding before direct laminating, printing, or coating.
Outstanding Energy Efficiency & Environmental Performance: The continuous flat pressing process offers high thermal efficiency, and producing thinner boards inherently means lower raw material consumption per unit area, aligning with green manufacturing principles.
High Automation & Intelligence: The entire line is controlled by a central computer, capable of storing and recalling production recipes for different thicknesses, enabling quick changeovers. It features comprehensive production data tracking and intelligent diagnostics.
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Application fields
The 2mm ultra-thin fiberboard produced by this equipment is an ideal material for:
Substrate for High-Pressure Laminates (HPL)
Balancer and Backer for Laminate Flooring
Back Panels for Home Appliances (e.g., TVs, Refrigerators)
High-End Gift Packaging and Premium Book Covers
Lightweight Furniture Doors and Exhibition/Display Materials
We are China professional factory and supplier of OSB board making machine, MDF/HDF making machine and Flakeboard/Particleboard making machine. Whatever which size, thickness, capacity you want to make, and whatever what kinds of raw materials do you use, our professional team can offer a suitable and good solution for you.
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
