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MH-CHP
MINGHUNG
Ⅰ. PB Core Specifications
Emission Class: E2 Grade (EN 312 compliant, formaldehyde ≤0.124mg/m³)
Density: 650-700kg/m³ (high-density structure ensures strength)
Standard Size: 1220×2440mm (customizable up to 2800×2070mm)
Thickness Options: 8mm, 12mm, 15mm, 18mm, 25mm, 30mm, 40mm (±0.2mm tolerance)
Moisture Content: 5%-11% (kiln-dried for climate adaptability)
Ⅱ. Detailed Production Process
1. Raw Material Pretreatment
Wood Chipping: Drum chipper (Model BX218) processes pine/poplar into 20-50mm flakes
Screening: Triple-deck vibratory screen (8mm/5mm/3mm mesh) with magnetic separator
Fiber Preparation: Steam preheating (165℃, 0.8MPa) followed by defibration in twin-disc refiner
2. Resin Application & Drying
Adhesive Formulation: UF resin (53% solids) + 1.2% wax emulsion
Blending: Centrifugal atomizing nozzle applies 8-10% resin (based on dry fiber weight)
Pneumatic Drying: Three-pass pipe dryer (inlet 180℃, outlet 70℃), moisture reduced to 1.5%
3. Mat Formation
Graded Layering: Mechanical star-type former creates 3-layer structure (40% fine surface / 60% coarse core)
Pre-pressing: Continuous belt pre-compactor (line pressure 1200N/mm) to 130% target thickness
4. Hot Pressing
High-pressure Curing: 8-opening press (3000-ton force, 205℃ platen) with 3-stage control:
Stage 1: 2.8MPa × 90 sec
Stage 2: 1.5MPa × 60 sec
Stage 3: 0.8MPa pressure release × 30 sec
Cycle Time: 3 min per 18mm panel
5. Finishing
Conditioning: Forced-air cooling to 45℃ + 48h stacking equilibration
Calibrating Sanding: 4-head sander (60/100/150/240 grit) removes 0.3-0.5mm/side
Trimming: CNC cross-cut saw (±0.5mm accuracy) to 1220×2440mm
Ⅲ. Production Equipment
1. Chipping Line
Drum Chipper:315kW, 25t/h capacity
Vibrating Screen: 2000×6000mm deck, 8mm amplitude
chipper
PB vibrating screen
2. Resin System
Reactor: 10m³ stainless steel vessel, ±1℃ temp control
Mixer: High-shear disperser (1200rpm)
Reactor
Mixing machine
3. Pressing Line
Air Former: 2600mm forming width, ±5% dosing accuracy
Continuous Press: 30m press line, 100mm/s closing speed
pre press machine
continuous hot press machine
4. Finishing Equipment
Wide Belt Sander: 1350mm working width, 0.1-3mm grinding depth
Panel Saw: Servo positioning system (±0.1mm repeatability)
sander
Panel Saw
Ⅳ. Emission Class Explained
1. Classification (EN 312)
E0: Formaldehyde ≤0.050mg/m³
E1: Formaldehyde ≤0.124mg/m³
E2: Formaldehyde ≤0.250mg/m³
2. E2 Grade Definition
Test Method: 1m³ climate chamber (23℃, 45% RH)
Actual Value: ≤0.124mg/m³ (meets E1)
Application: Non-hermetic furniture (requires surface sealing)
3. Emission Control
Resin Modification: Melamine-urea copolymer formaldehyde scavenger
Post-curing: 60℃ conditioning for 72 hours
Ⅴ. Manufacturing Technology
Raw Materials: Pure pine/poplar chips with ≥85% wood content, bark-free
Pressing Process: Three-layer gradient structure (fine surface + coarse core), continuous press line (≥3000-ton pressure, 200°C+), internal bond strength ≥0.45N/mm²
- Surface Finish: Double-sided sanding to Ra≤3.2μm smoothness, flatness tolerance <0.15mm/m²
Ⅵ. Performance Advantages
Mechanical Strength: MOR≥14MPa, MOE≥1800MPa, screw holding force≥1100N
Moisture Resistance: 24h thickness swelling <10% (V313 cycle tested)
Machinability: Compatible with CNC routing, edge banding, UV coating, and thermal laminating
Stability: Linear expansion coefficient ≤0.3mm/m (20-30°C, 45-70% RH)
Ⅶ. Applications
Furniture Making: Wardrobes, bookshelves, bed frames
Commercial Projects: Hotel partitions, display props, retail shelving
Custom Service: Precision cutting to drawings, E0 grade upgrade available
Who We Are
Founded in 1983, Shandong MINGHUNG OSB&MDF Machinery Equipment Manufacturing Co.,Ltd., 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) and Veneerable super strong particle board (LSB).
Development history
2007-2010
2007 -Our factory started to manufacture the full sets of OSB、PB、MDF Production line.
2013
Shandong Hungyou intelligent Equipment Industry ResearchCo..Ltd established, for plywood machinery and OSB、PB、MDF machinery research and development.The main research direction is to realize the automation of Plywood machinery.
2015
Linyi Ming Hung Trade Co.,Ltd established, the development focus has began to Foreignmarket, to service more foreign customers.
2017
Our High-end brand -ShandongMinghung OSB&MDF Machinery Equipment Manufacturing Co..Ltd established, mainly for foreign customers make the whole plant planning and design,achieve comprehensive high-end automation.
2018
Our High-end brand -Shandong MingHung Wood Machinery Co..Ltd established, mainly for foreign customers make the whole plant planning and design,achieve comprehensive high-end automation.
2022
Our factory's overseas business achieved significant growth,shipped machines to many different countriesl,ike America,Mexico,Columbia,Russia,Indonesia,Vietnam,Malaysia,Thailand,Egypt, TurkishUkraine, Romania, Portugal, Africaand others.
2024
We continue to adhere to the strategy of going global,to become one World brand.
PACKING & SHIPPING
We maintain a long-term cooperation with a well-known freight forwarding company, and adhere to the customer-first philosophy. We strictly implement the quality inspection process before shipment to ensure that each batch of products meets international quality standards, We deeply understand that high-quality service is the cornerstone of winning customer trust, and we always create value for customers with professional and efficient supply chain management.
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
Ⅰ. PB Core Specifications
Emission Class: E2 Grade (EN 312 compliant, formaldehyde ≤0.124mg/m³)
Density: 650-700kg/m³ (high-density structure ensures strength)
Standard Size: 1220×2440mm (customizable up to 2800×2070mm)
Thickness Options: 8mm, 12mm, 15mm, 18mm, 25mm, 30mm, 40mm (±0.2mm tolerance)
Moisture Content: 5%-11% (kiln-dried for climate adaptability)
Ⅱ. Detailed Production Process
1. Raw Material Pretreatment
Wood Chipping: Drum chipper (Model BX218) processes pine/poplar into 20-50mm flakes
Screening: Triple-deck vibratory screen (8mm/5mm/3mm mesh) with magnetic separator
Fiber Preparation: Steam preheating (165℃, 0.8MPa) followed by defibration in twin-disc refiner
2. Resin Application & Drying
Adhesive Formulation: UF resin (53% solids) + 1.2% wax emulsion
Blending: Centrifugal atomizing nozzle applies 8-10% resin (based on dry fiber weight)
Pneumatic Drying: Three-pass pipe dryer (inlet 180℃, outlet 70℃), moisture reduced to 1.5%
3. Mat Formation
Graded Layering: Mechanical star-type former creates 3-layer structure (40% fine surface / 60% coarse core)
Pre-pressing: Continuous belt pre-compactor (line pressure 1200N/mm) to 130% target thickness
4. Hot Pressing
High-pressure Curing: 8-opening press (3000-ton force, 205℃ platen) with 3-stage control:
Stage 1: 2.8MPa × 90 sec
Stage 2: 1.5MPa × 60 sec
Stage 3: 0.8MPa pressure release × 30 sec
Cycle Time: 3 min per 18mm panel
5. Finishing
Conditioning: Forced-air cooling to 45℃ + 48h stacking equilibration
Calibrating Sanding: 4-head sander (60/100/150/240 grit) removes 0.3-0.5mm/side
Trimming: CNC cross-cut saw (±0.5mm accuracy) to 1220×2440mm
Ⅲ. Production Equipment
1. Chipping Line
Drum Chipper:315kW, 25t/h capacity
Vibrating Screen: 2000×6000mm deck, 8mm amplitude
chipper
PB vibrating screen
2. Resin System
Reactor: 10m³ stainless steel vessel, ±1℃ temp control
Mixer: High-shear disperser (1200rpm)
Reactor
Mixing machine
3. Pressing Line
Air Former: 2600mm forming width, ±5% dosing accuracy
Continuous Press: 30m press line, 100mm/s closing speed
pre press machine
continuous hot press machine
4. Finishing Equipment
Wide Belt Sander: 1350mm working width, 0.1-3mm grinding depth
Panel Saw: Servo positioning system (±0.1mm repeatability)
sander
Panel Saw
Ⅳ. Emission Class Explained
1. Classification (EN 312)
E0: Formaldehyde ≤0.050mg/m³
E1: Formaldehyde ≤0.124mg/m³
E2: Formaldehyde ≤0.250mg/m³
2. E2 Grade Definition
Test Method: 1m³ climate chamber (23℃, 45% RH)
Actual Value: ≤0.124mg/m³ (meets E1)
Application: Non-hermetic furniture (requires surface sealing)
3. Emission Control
Resin Modification: Melamine-urea copolymer formaldehyde scavenger
Post-curing: 60℃ conditioning for 72 hours
Ⅴ. Manufacturing Technology
Raw Materials: Pure pine/poplar chips with ≥85% wood content, bark-free
Pressing Process: Three-layer gradient structure (fine surface + coarse core), continuous press line (≥3000-ton pressure, 200°C+), internal bond strength ≥0.45N/mm²
- Surface Finish: Double-sided sanding to Ra≤3.2μm smoothness, flatness tolerance <0.15mm/m²
Ⅵ. Performance Advantages
Mechanical Strength: MOR≥14MPa, MOE≥1800MPa, screw holding force≥1100N
Moisture Resistance: 24h thickness swelling <10% (V313 cycle tested)
Machinability: Compatible with CNC routing, edge banding, UV coating, and thermal laminating
Stability: Linear expansion coefficient ≤0.3mm/m (20-30°C, 45-70% RH)
Ⅶ. Applications
Furniture Making: Wardrobes, bookshelves, bed frames
Commercial Projects: Hotel partitions, display props, retail shelving
Custom Service: Precision cutting to drawings, E0 grade upgrade available
Who We Are
Founded in 1983, Shandong MINGHUNG OSB&MDF Machinery Equipment Manufacturing Co.,Ltd., 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) and Veneerable super strong particle board (LSB).
Development history
2007-2010
2007 -Our factory started to manufacture the full sets of OSB、PB、MDF Production line.
2013
Shandong Hungyou intelligent Equipment Industry ResearchCo..Ltd established, for plywood machinery and OSB、PB、MDF machinery research and development.The main research direction is to realize the automation of Plywood machinery.
2015
Linyi Ming Hung Trade Co.,Ltd established, the development focus has began to Foreignmarket, to service more foreign customers.
2017
Our High-end brand -ShandongMinghung OSB&MDF Machinery Equipment Manufacturing Co..Ltd established, mainly for foreign customers make the whole plant planning and design,achieve comprehensive high-end automation.
2018
Our High-end brand -Shandong MingHung Wood Machinery Co..Ltd established, mainly for foreign customers make the whole plant planning and design,achieve comprehensive high-end automation.
2022
Our factory's overseas business achieved significant growth,shipped machines to many different countriesl,ike America,Mexico,Columbia,Russia,Indonesia,Vietnam,Malaysia,Thailand,Egypt, TurkishUkraine, Romania, Portugal, Africaand others.
2024
We continue to adhere to the strategy of going global,to become one World brand.
PACKING & SHIPPING
We maintain a long-term cooperation with a well-known freight forwarding company, and adhere to the customer-first philosophy. We strictly implement the quality inspection process before shipment to ensure that each batch of products meets international quality standards, We deeply understand that high-quality service is the cornerstone of winning customer trust, and we always create value for customers with professional and efficient supply chain management.
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
