MH-CHP
MINGHUNG
Thickness (mm) | Applications | Warp-Resistance Grade |
6-9 | Furniture Backing, Door Cores | EN 622-5 Class A |
12-18 | Cabinet Panels, Wall Partitions | EN 622-5 Class S |
22-30 | Heavy-Duty Shelving, Flooring | EN 622-5 Class H |
Formula optimization:
Add nano-silicon dioxide to enhance the fiber bonding force, with static bending strength ≥ 35 MPa (over 28% of the national standard);
Use environmentally friendly PMDI resin instead of urea-formaldehyde glue, with formaldehyde emission ≤ 0.015 mg/m³ (EN 717-1);
Process control:
Spray-vapor pre-treatment: Saturated steam penetrates the core layer of the billet, increasing the temperature by 20°C and shortening the hot pressing time by 30%
Gradient drying technology: Three-channel drum dryer (200°C) stabilizes the fiber moisture content at 2-4%
1. Raw Material Pre-Treatment
Debarked logs chipped into 20-30mm flakes, cleaned via hydrocyclone to remove sand/metals
Flakes soaked in 85℃ hot water for 45 minutes to soften lignin
2. Fiber Preparation
Refiner defibrates fibers at 175℃/0.8MPa (fiber length 0.8-1.2mm, aspect ratio ≥60:1)
0.5% wax emulsion added for water resistance
3. Warp-Resistant Formulation
Fibers blended with 10-12% PMDI resin in twin-shaft mixer
Key Technology: 3% nano-SiO₂ (30nm) added to enhance fiber bonding
4. Steam Injection Toughening
Formed mat enters steam chamber: saturated steam (0.3MPa) penetrates core for 3 seconds
Core temperature jumps from 85℃ to 105℃, reducing internal stress during pressing
5. Continuous Pressing
Temperature gradient control (surface 210℃ → core 195℃)
Zoned pressure (pre-press 60bar → main press 120bar → decompression 40bar)
Line speed 600mm/s, 18mm board curing in 38 seconds
6. Gradual Cooling
Three-zone cooling (80℃→60℃→40℃) at ≤5℃/min rate
Board turner rotates panels 180° to release residual stress
7. Precision Finishing
Double-end trimmer cuts to size (±0.3mm tolerance)
6-head sander with 80-240 grit belts ensures ≤±0.1mm thickness
Machine vision inspects surface defects (0.1mm² resolution)
8. Packaging & Storage
PE moisture barrier film inserted between stacks
Conditioning warehouse (25±3℃, RH 45%) equilibrates moisture to 5-7%
High-end furniture: Membrane-pressed door panel substrate (embedded metal straightening device, creep resistance increased by 300%)
Building decoration: Fireproof partition board (EN 300 OSB/3 standard, flame-retardant option available)
Custom export: Compliant with CARB P2 and EPA TSCA standards, suitable for European and American container transportation (40HQ, 504m³ capacity)
Secondary processing: Compatible with UV powder coating (low-temperature curing at 100°C, coating thickness 60-80μm)
1. Hydraulic Washer
Working Principle: Wood flakes rotate in high-speed water flow; metal detectors trigger magnets to remove ferrous debris, while sand sinks to conical bottom
Anti-Warp Function: ≥99% impurity removal, preventing localized stress during pressing
2. Steam Softening Vessel
Working Principle: 0.8MPa saturated steam penetrates wood layers, reducing lignin’s glass transition temp from 120℃ to 85℃
Anti-Warp Function: 40% less fiber damage during refining, enhancing bonding uniformity
3. Thermo-Mechanical Refiner
Working Principle: 0.1-0.2mm grinding disc gap with 175℃ steam dissolves fiber middle lamella, yielding ≥90% intact fibers
Anti-Warp Function: 65% long fibers (>1mm) enhance internal bond strength by 35%
4. Nano-Modified Blending System
Working Principle: Twin-shaft mixer (200rpm) atomizes nano-SiO₂ into fibers while PMDI resin is electrostatically sprayed
Anti-Warp Function: Nano-fillers reduce hygroscopic expansion by 22% under humidity
5. Steam Pre-Conditioner
Working Principle: Reciprocating nozzle arrays inject 105℃ steam onto both surfaces, penetrating 80% of mat thickness
Anti-Warp Function: Core pre-heating cuts pressing time 30%, eliminating interlayer shear stress
6. Continuous Press
Working Principle: 40-zone pressure control (60-120bar) with temperature gradient from 210℃ (inlet) to 190℃ (outlet)
Anti-Warp Function: Pressure profile adapts to mat rheology, achieving 98% resin curing synchronicity
7. Step Cooling Conveyor
Working Principle: 3-stage air chambers (80℃/60℃/40℃) with variable-speed rollers limit cooling rate to ≤5℃/min
Anti-Warp Function: Slow residual stress release reduces 24h springback to <0.05mm
8. Hydraulic Turner
Working Principle: C-frame arms vacuum-grip panels, rotating 180° at <0.3G acceleration
Anti-Warp Function: Balances bilateral stress with ≤2% deviation after flipping
9. Precision Sander
Working Principle: 6 sanding heads (80→240 grit) with real-time laser thickness feedback
Anti-Warp Function: ±0.1mm tolerance prevents stress accumulation during laminating
10. Machine Vision Sorter
Working Principle: Line-scan CCD cameras (5μm resolution) inspect surfaces, AI compares with 2,000+ defect templates
Anti-Warp Function: Rejects potential warping sources (e.g. localized density anomalies)
11. Conditioning Warehouse
Working Principle: Staggered stacks in 25±3℃/RH 45% environment with forced convection for 72 hours
Anti-Warp Function: Equilibrates moisture to 5-7%, eliminating humidity sensitivity
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.
The machinery we produce
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
Thickness (mm) | Applications | Warp-Resistance Grade |
6-9 | Furniture Backing, Door Cores | EN 622-5 Class A |
12-18 | Cabinet Panels, Wall Partitions | EN 622-5 Class S |
22-30 | Heavy-Duty Shelving, Flooring | EN 622-5 Class H |
Formula optimization:
Add nano-silicon dioxide to enhance the fiber bonding force, with static bending strength ≥ 35 MPa (over 28% of the national standard);
Use environmentally friendly PMDI resin instead of urea-formaldehyde glue, with formaldehyde emission ≤ 0.015 mg/m³ (EN 717-1);
Process control:
Spray-vapor pre-treatment: Saturated steam penetrates the core layer of the billet, increasing the temperature by 20°C and shortening the hot pressing time by 30%
Gradient drying technology: Three-channel drum dryer (200°C) stabilizes the fiber moisture content at 2-4%
1. Raw Material Pre-Treatment
Debarked logs chipped into 20-30mm flakes, cleaned via hydrocyclone to remove sand/metals
Flakes soaked in 85℃ hot water for 45 minutes to soften lignin
2. Fiber Preparation
Refiner defibrates fibers at 175℃/0.8MPa (fiber length 0.8-1.2mm, aspect ratio ≥60:1)
0.5% wax emulsion added for water resistance
3. Warp-Resistant Formulation
Fibers blended with 10-12% PMDI resin in twin-shaft mixer
Key Technology: 3% nano-SiO₂ (30nm) added to enhance fiber bonding
4. Steam Injection Toughening
Formed mat enters steam chamber: saturated steam (0.3MPa) penetrates core for 3 seconds
Core temperature jumps from 85℃ to 105℃, reducing internal stress during pressing
5. Continuous Pressing
Temperature gradient control (surface 210℃ → core 195℃)
Zoned pressure (pre-press 60bar → main press 120bar → decompression 40bar)
Line speed 600mm/s, 18mm board curing in 38 seconds
6. Gradual Cooling
Three-zone cooling (80℃→60℃→40℃) at ≤5℃/min rate
Board turner rotates panels 180° to release residual stress
7. Precision Finishing
Double-end trimmer cuts to size (±0.3mm tolerance)
6-head sander with 80-240 grit belts ensures ≤±0.1mm thickness
Machine vision inspects surface defects (0.1mm² resolution)
8. Packaging & Storage
PE moisture barrier film inserted between stacks
Conditioning warehouse (25±3℃, RH 45%) equilibrates moisture to 5-7%
High-end furniture: Membrane-pressed door panel substrate (embedded metal straightening device, creep resistance increased by 300%)
Building decoration: Fireproof partition board (EN 300 OSB/3 standard, flame-retardant option available)
Custom export: Compliant with CARB P2 and EPA TSCA standards, suitable for European and American container transportation (40HQ, 504m³ capacity)
Secondary processing: Compatible with UV powder coating (low-temperature curing at 100°C, coating thickness 60-80μm)
1. Hydraulic Washer
Working Principle: Wood flakes rotate in high-speed water flow; metal detectors trigger magnets to remove ferrous debris, while sand sinks to conical bottom
Anti-Warp Function: ≥99% impurity removal, preventing localized stress during pressing
2. Steam Softening Vessel
Working Principle: 0.8MPa saturated steam penetrates wood layers, reducing lignin’s glass transition temp from 120℃ to 85℃
Anti-Warp Function: 40% less fiber damage during refining, enhancing bonding uniformity
3. Thermo-Mechanical Refiner
Working Principle: 0.1-0.2mm grinding disc gap with 175℃ steam dissolves fiber middle lamella, yielding ≥90% intact fibers
Anti-Warp Function: 65% long fibers (>1mm) enhance internal bond strength by 35%
4. Nano-Modified Blending System
Working Principle: Twin-shaft mixer (200rpm) atomizes nano-SiO₂ into fibers while PMDI resin is electrostatically sprayed
Anti-Warp Function: Nano-fillers reduce hygroscopic expansion by 22% under humidity
5. Steam Pre-Conditioner
Working Principle: Reciprocating nozzle arrays inject 105℃ steam onto both surfaces, penetrating 80% of mat thickness
Anti-Warp Function: Core pre-heating cuts pressing time 30%, eliminating interlayer shear stress
6. Continuous Press
Working Principle: 40-zone pressure control (60-120bar) with temperature gradient from 210℃ (inlet) to 190℃ (outlet)
Anti-Warp Function: Pressure profile adapts to mat rheology, achieving 98% resin curing synchronicity
7. Step Cooling Conveyor
Working Principle: 3-stage air chambers (80℃/60℃/40℃) with variable-speed rollers limit cooling rate to ≤5℃/min
Anti-Warp Function: Slow residual stress release reduces 24h springback to <0.05mm
8. Hydraulic Turner
Working Principle: C-frame arms vacuum-grip panels, rotating 180° at <0.3G acceleration
Anti-Warp Function: Balances bilateral stress with ≤2% deviation after flipping
9. Precision Sander
Working Principle: 6 sanding heads (80→240 grit) with real-time laser thickness feedback
Anti-Warp Function: ±0.1mm tolerance prevents stress accumulation during laminating
10. Machine Vision Sorter
Working Principle: Line-scan CCD cameras (5μm resolution) inspect surfaces, AI compares with 2,000+ defect templates
Anti-Warp Function: Rejects potential warping sources (e.g. localized density anomalies)
11. Conditioning Warehouse
Working Principle: Staggered stacks in 25±3℃/RH 45% environment with forced convection for 72 hours
Anti-Warp Function: Equilibrates moisture to 5-7%, eliminating humidity sensitivity
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.
The machinery we produce
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
