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MH-OSB
MINGHUNG
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Product Description
The Oriented Strand Board (OSB) Production Line is a highly automated, continuous manufacturing system specifically designed to produce Oriented Strand Board. OSB is a superior structural wood-based panel known for its high strength, excellent dimensional stability, and cost-effectiveness, widely used in construction, packaging, and furniture manufacturing. The core technology of this production line lies in "oriented forming," where specially manufactured wood strands are precisely aligned along the panel's length direction through sophisticated mechanical or mechanical-airflow systems. This process grants the final product exceptional longitudinal mechanical properties.
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Production process flow
A complete OSB production line typically consists of the following core sections:
1. Raw Material Preparation Section:
Debarking and Chipping: Logs (typically fast-growing species like poplar or pine) are debarked and then cut into uniform wood chips of specific dimensions.
Washing and Screening: The chips are washed to remove impurities like sand and metals, and then screened to obtain clean, uniformly sized accept chips.
2. Strand Preparation Section:
Stranding: The accept chips are fed into large disc or drum stranders, where they are sliced into thin, flat strands of designed specifications. This is fundamental for ensuring the subsequent oriented forming effect and panel strength.
Drying: The wet strands are passed through rotary or flash tube dryers to reduce their moisture content to a very low level as required by the process (typically 2%-4%), ensuring proper resin curing and press efficiency.
Screening and Classification: The dried strands are classified through multi-deck screens to separate out fines and oversized particles. The qualified strands are sent to different storage bins, ready for the oriented forming process.
3. Blending and Forming Section (Core Section):
Blending: The classified strands are uniformly mixed with MDI (Isocyanate) resin, wax, and other additives in high-speed blenders. MDI resin is the preferred adhesive for OSB production due to its superior waterproofing and high bonding strength.
Oriented Forming: This is the heart of the OSB production line. The resinated strands are fed into precision forming stations. Inside these stations, using multiple orienting rolls or a combination of mechanical and airflow principles, the strands are "suspended" and aligned directionally onto a continuously moving mat. A typical three-layer structure is used: the surface layers have strands oriented along the panel's length, while the core layer strands are oriented across the width or randomly arranged, balancing the panel's strength in both longitudinal and transverse directions.
4. Pre-pressing and Hot Pressing Section:
Pre-pressing: The loose, fluffy oriented mat is first passed through a pre-press for initial compaction and stabilization, increasing mat density for easier handling and entry into the hot press.
Hot Pressing: The mat is then fed into a high-temperature, high-pressure hot press. Modern OSB lines primarily use a Continuous Press. The mat travels between a continuously moving steel belt through a long press section where heated platens apply temperature and pressure. This process rapidly cures the resin, firmly bonding the oriented strands together to form a high-strength panel.
5. Finishing Section:
Cooling and Trimming: The continuous board exiting the press is cooled and set on a cooling and turnover device. It is then cut to standard sizes by cross-cut and rip saws according to order requirements.
Stacking and Packaging: The cut OSB panels are automatically stacked, inspected, and packaged by automated equipment, finally being sent to storage or for shipment.
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Production line equipment
A complete Oriented Strand Board (OSB) production line is a complex system project, primarily composed of the following equipment:
1. Raw Material Handling Section Equipment:
Debarker: Removes bark from logs, as bark can affect bonding quality and panel appearance.
Chipper: Cuts logs into wood chips that meet process specifications.
Chip Screen: Screens the chips to separate oversized, undersized chips, and impurities, ensuring subsequent strand quality.
Chip Bin/Silo: Used for storage and buffering of wood chips.
veneer peeling
wood chipper
2. Strand Preparation Section Equipment:
Strander: A key piece of equipment in the production line. It slices wood chips into thin, elongated specialty strands. Main types include disc stranders and drum stranders.
Strand Dryer: Typically a rotary dryer or flash tube dryer, rapidly reducing strand moisture content from the high level of fresh wood (e.g., 30%-50%) to the required 2%-4%.
Dry Strand Screen: A multi-deck vibrating screen used to classify dried strands. It separates acceptable strands, fine powder, and inadequately separated large strands.
Strand Bins: Used for the classified storage of face and core layer strands.
flaker machine
dryer
vibrating screen
3. Blending and Forming Section Equipment (Core Section):
Blending System:
Resin Preparation and Supply System: For the storage, metering, and preparation of MDI, PF, or other adhesives.
Wax Supply System: Provides waterproofing agent.
High-Speed Blender: Core equipment. Thoroughly and uniformly mixes strands, resin, wax, etc., via high-speed rotating mixing shafts.
Forming System:
Forming Bin and Scaling Conveyor: Stores resinated strands and feeds them uniformly and quantitatively to the forming station.
Strand Orienting Former:is the soul of the OSB production line. Its core function is to arrange and distribute the resinated, irregular strands precisely and uniformly in a pre-set direction (typically the panel's length direction), forming a mat with oriented structural characteristics. It is this process that gives OSB its exceptional longitudinal mechanical properties.
Working Principle and Process:
The Strand Orienting Former primarily operates on Mechanical Orienting or Mechanical-Airflow Combined Orienting principles.
Mechanical Orienting:
Core Component: Orienting Rolls. These are a series of rotating rolls with special grooves or patterns on their surface.
Process: Resinated strands fall onto the high-speed rotating orienting rolls. When a strand contacts the grooves of a roll, it is "grabbed" and aligned by friction. Elongated strands naturally align their long axis with the rotation direction of the rolls (i.e., the panel's length direction) and are then thrown onto the moving mat. By combining multiple sets of orienting rolls, different orientation angles for face and core layers can be achieved.
Mechanical-Airflow Combined Orienting:
This method combines the advantages of mechanical orienting and airflow control.
Process: Strands first undergo preliminary alignment via mechanical orienting rolls. Then, as they pass through a "air curtain" or "suspension zone" created by controlled airflow, they are further combed and adjusted by the air, resulting in more precise and uniform strand alignment. This method offers better control over strand orientation and is considered superior.
Key Structures and Features:
Forming Head: The end unit that performs the forming action, containing orienting rolls, airflow channels, metering gates, etc.
Multi-Layer Forming Capability: Advanced orienting formers are typically equipped with multiple independent forming heads capable of laying the face layers and core layer separately.
Face Layer Forming Heads: Use the highest quality, longest strands oriented strongly along the panel's length.
Core Layer Forming Head: Can use shorter or lower-cost strands, oriented across the width or randomly formed, to balance the panel's transverse strength and control costs.
Online Monitoring and Adjustment System: Modern formers integrate online scanners (e.g., beta ray or X-ray) that continuously monitor the density profile and thickness of the formed mat. This data is fed back to the control system to automatically adjust the feed rate and speed of the forming heads, ensuring mat uniformity and consistency.
High Precision and Uniformity: Capable of achieving very thin single-layer formation and precise strand orientation, which is key to guaranteeing the high strength and stability of OSB panels.
Importance:
The technical level and performance of the Strand Orienting Former directly determine the core physical and mechanical properties of the final OSB product, such as Modulus of Rupture (MOR), Modulus of Elasticity (MOE), and Internal Bond (IB) strength. An efficient and precise Strand Orienting Former is the fundamental guarantee for producing high-quality OSB that distinguishes it from ordinary particleboard.
4. Pressing and Curing Section Equipment:
Pre-press: Initially compacts the fluffy formed mat to increase density and strength, creating a stable "mat" for smooth entry into the hot press.
Mat Conveying and Detection System: Includes metal detectors, weight/ray gauges, etc., to ensure mat quality and safety.
Hot Press: The "heart" of the production line. Modern OSB lines primarily use a Continuous Press, where the mat passes continuously under high temperature and pressure for rapid resin curing. Multi-opening press lines are also used.
pre press
continuous press
5. Finishing and Sanding Section Equipment:
Cooling and Turnover Device: Cools and turns the high-temperature panels exiting the press to prevent warping.
Cross-Cut and Rip Saws: Cut the continuous OSB ribbon into required dimensions.
Stacker: Automatically stacks the panels neatly.
Sander: Sands the panel surface to a uniform thickness and smooth finish.
Packaging System: Automatically packages the finished panels.
dryer rack
cross-cut saw
sander
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Core features and advantages
High Strength and Stability: The oriented forming technology is the core advantage, giving OSB significantly higher longitudinal bending strength compared to ordinary particleboard, making it comparable to plywood.
High Degree of Automation: The entire line is controlled by a central PLC system, enabling unmanned or minimally manned operation from raw material to finished product, resulting in high production efficiency and consistent product quality.
Wide Raw Material Adaptability: It can utilize fast-growing timber, small-diameter wood, and wood processing residues, aligning with the principles of sustainable forestry.
Eco-Friendly Product: Primarily uses environmentally friendly MDI resin, resulting in very low formaldehyde emissions, even meeting no-added formaldehyde standards.
High Economic Benefit: Continuous production offers high capacity, low raw material costs, and high product value, delivering excellent returns on investment.
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Company Profile
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.
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Customer group photo
We provide comprehensive turnkey project services, from planning and design, equipment manufacturing, to installation and commissioning, tailored to our clients' specific requirements.
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
|
Product Description
The Oriented Strand Board (OSB) Production Line is a highly automated, continuous manufacturing system specifically designed to produce Oriented Strand Board. OSB is a superior structural wood-based panel known for its high strength, excellent dimensional stability, and cost-effectiveness, widely used in construction, packaging, and furniture manufacturing. The core technology of this production line lies in "oriented forming," where specially manufactured wood strands are precisely aligned along the panel's length direction through sophisticated mechanical or mechanical-airflow systems. This process grants the final product exceptional longitudinal mechanical properties.
|
Production process flow
A complete OSB production line typically consists of the following core sections:
1. Raw Material Preparation Section:
Debarking and Chipping: Logs (typically fast-growing species like poplar or pine) are debarked and then cut into uniform wood chips of specific dimensions.
Washing and Screening: The chips are washed to remove impurities like sand and metals, and then screened to obtain clean, uniformly sized accept chips.
2. Strand Preparation Section:
Stranding: The accept chips are fed into large disc or drum stranders, where they are sliced into thin, flat strands of designed specifications. This is fundamental for ensuring the subsequent oriented forming effect and panel strength.
Drying: The wet strands are passed through rotary or flash tube dryers to reduce their moisture content to a very low level as required by the process (typically 2%-4%), ensuring proper resin curing and press efficiency.
Screening and Classification: The dried strands are classified through multi-deck screens to separate out fines and oversized particles. The qualified strands are sent to different storage bins, ready for the oriented forming process.
3. Blending and Forming Section (Core Section):
Blending: The classified strands are uniformly mixed with MDI (Isocyanate) resin, wax, and other additives in high-speed blenders. MDI resin is the preferred adhesive for OSB production due to its superior waterproofing and high bonding strength.
Oriented Forming: This is the heart of the OSB production line. The resinated strands are fed into precision forming stations. Inside these stations, using multiple orienting rolls or a combination of mechanical and airflow principles, the strands are "suspended" and aligned directionally onto a continuously moving mat. A typical three-layer structure is used: the surface layers have strands oriented along the panel's length, while the core layer strands are oriented across the width or randomly arranged, balancing the panel's strength in both longitudinal and transverse directions.
4. Pre-pressing and Hot Pressing Section:
Pre-pressing: The loose, fluffy oriented mat is first passed through a pre-press for initial compaction and stabilization, increasing mat density for easier handling and entry into the hot press.
Hot Pressing: The mat is then fed into a high-temperature, high-pressure hot press. Modern OSB lines primarily use a Continuous Press. The mat travels between a continuously moving steel belt through a long press section where heated platens apply temperature and pressure. This process rapidly cures the resin, firmly bonding the oriented strands together to form a high-strength panel.
5. Finishing Section:
Cooling and Trimming: The continuous board exiting the press is cooled and set on a cooling and turnover device. It is then cut to standard sizes by cross-cut and rip saws according to order requirements.
Stacking and Packaging: The cut OSB panels are automatically stacked, inspected, and packaged by automated equipment, finally being sent to storage or for shipment.
|
Production line equipment
A complete Oriented Strand Board (OSB) production line is a complex system project, primarily composed of the following equipment:
1. Raw Material Handling Section Equipment:
Debarker: Removes bark from logs, as bark can affect bonding quality and panel appearance.
Chipper: Cuts logs into wood chips that meet process specifications.
Chip Screen: Screens the chips to separate oversized, undersized chips, and impurities, ensuring subsequent strand quality.
Chip Bin/Silo: Used for storage and buffering of wood chips.
veneer peeling
wood chipper
2. Strand Preparation Section Equipment:
Strander: A key piece of equipment in the production line. It slices wood chips into thin, elongated specialty strands. Main types include disc stranders and drum stranders.
Strand Dryer: Typically a rotary dryer or flash tube dryer, rapidly reducing strand moisture content from the high level of fresh wood (e.g., 30%-50%) to the required 2%-4%.
Dry Strand Screen: A multi-deck vibrating screen used to classify dried strands. It separates acceptable strands, fine powder, and inadequately separated large strands.
Strand Bins: Used for the classified storage of face and core layer strands.
flaker machine
dryer
vibrating screen
3. Blending and Forming Section Equipment (Core Section):
Blending System:
Resin Preparation and Supply System: For the storage, metering, and preparation of MDI, PF, or other adhesives.
Wax Supply System: Provides waterproofing agent.
High-Speed Blender: Core equipment. Thoroughly and uniformly mixes strands, resin, wax, etc., via high-speed rotating mixing shafts.
Forming System:
Forming Bin and Scaling Conveyor: Stores resinated strands and feeds them uniformly and quantitatively to the forming station.
Strand Orienting Former:is the soul of the OSB production line. Its core function is to arrange and distribute the resinated, irregular strands precisely and uniformly in a pre-set direction (typically the panel's length direction), forming a mat with oriented structural characteristics. It is this process that gives OSB its exceptional longitudinal mechanical properties.
Working Principle and Process:
The Strand Orienting Former primarily operates on Mechanical Orienting or Mechanical-Airflow Combined Orienting principles.
Mechanical Orienting:
Core Component: Orienting Rolls. These are a series of rotating rolls with special grooves or patterns on their surface.
Process: Resinated strands fall onto the high-speed rotating orienting rolls. When a strand contacts the grooves of a roll, it is "grabbed" and aligned by friction. Elongated strands naturally align their long axis with the rotation direction of the rolls (i.e., the panel's length direction) and are then thrown onto the moving mat. By combining multiple sets of orienting rolls, different orientation angles for face and core layers can be achieved.
Mechanical-Airflow Combined Orienting:
This method combines the advantages of mechanical orienting and airflow control.
Process: Strands first undergo preliminary alignment via mechanical orienting rolls. Then, as they pass through a "air curtain" or "suspension zone" created by controlled airflow, they are further combed and adjusted by the air, resulting in more precise and uniform strand alignment. This method offers better control over strand orientation and is considered superior.
Key Structures and Features:
Forming Head: The end unit that performs the forming action, containing orienting rolls, airflow channels, metering gates, etc.
Multi-Layer Forming Capability: Advanced orienting formers are typically equipped with multiple independent forming heads capable of laying the face layers and core layer separately.
Face Layer Forming Heads: Use the highest quality, longest strands oriented strongly along the panel's length.
Core Layer Forming Head: Can use shorter or lower-cost strands, oriented across the width or randomly formed, to balance the panel's transverse strength and control costs.
Online Monitoring and Adjustment System: Modern formers integrate online scanners (e.g., beta ray or X-ray) that continuously monitor the density profile and thickness of the formed mat. This data is fed back to the control system to automatically adjust the feed rate and speed of the forming heads, ensuring mat uniformity and consistency.
High Precision and Uniformity: Capable of achieving very thin single-layer formation and precise strand orientation, which is key to guaranteeing the high strength and stability of OSB panels.
Importance:
The technical level and performance of the Strand Orienting Former directly determine the core physical and mechanical properties of the final OSB product, such as Modulus of Rupture (MOR), Modulus of Elasticity (MOE), and Internal Bond (IB) strength. An efficient and precise Strand Orienting Former is the fundamental guarantee for producing high-quality OSB that distinguishes it from ordinary particleboard.
4. Pressing and Curing Section Equipment:
Pre-press: Initially compacts the fluffy formed mat to increase density and strength, creating a stable "mat" for smooth entry into the hot press.
Mat Conveying and Detection System: Includes metal detectors, weight/ray gauges, etc., to ensure mat quality and safety.
Hot Press: The "heart" of the production line. Modern OSB lines primarily use a Continuous Press, where the mat passes continuously under high temperature and pressure for rapid resin curing. Multi-opening press lines are also used.
pre press
continuous press
5. Finishing and Sanding Section Equipment:
Cooling and Turnover Device: Cools and turns the high-temperature panels exiting the press to prevent warping.
Cross-Cut and Rip Saws: Cut the continuous OSB ribbon into required dimensions.
Stacker: Automatically stacks the panels neatly.
Sander: Sands the panel surface to a uniform thickness and smooth finish.
Packaging System: Automatically packages the finished panels.
dryer rack
cross-cut saw
sander
|
Core features and advantages
High Strength and Stability: The oriented forming technology is the core advantage, giving OSB significantly higher longitudinal bending strength compared to ordinary particleboard, making it comparable to plywood.
High Degree of Automation: The entire line is controlled by a central PLC system, enabling unmanned or minimally manned operation from raw material to finished product, resulting in high production efficiency and consistent product quality.
Wide Raw Material Adaptability: It can utilize fast-growing timber, small-diameter wood, and wood processing residues, aligning with the principles of sustainable forestry.
Eco-Friendly Product: Primarily uses environmentally friendly MDI resin, resulting in very low formaldehyde emissions, even meeting no-added formaldehyde standards.
High Economic Benefit: Continuous production offers high capacity, low raw material costs, and high product value, delivering excellent returns on investment.
|
Company Profile
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.
|
Customer group photo
We provide comprehensive turnkey project services, from planning and design, equipment manufacturing, to installation and commissioning, tailored to our clients' specific requirements.
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
