MH
MINGHUNG
Plywood is a composite wood panel made by bonding multiple wood veneers with adhesives, stacked with adjacent layers' grains perpendicular. The cross-laminated odd-number structure (typically 3-21 layers) enhances mechanical stability and warp resistance.
Core Manufacturing Process
Log Processing: Logs steamed and rotary-cut into 0.3-6mm veneers, dried to 8-12% moisture content
Gluing & Layup: Urea-formaldehyde/phenolic/soy-based adhesives applied (80-300g/㎡)
Hot Pressing: Cured at 140-180°C under 2.5-3.5MPa pressure (1-1.5min/mm pressing time)
Finishing: Precision cutting (e.g. 1220×2440mm), sanding to surface roughness Ra≤3.2μm
Key Properties
Balanced Strength: Cross-grain construction reduces bending strength variation to <10% across directions
Dimensional Stability: Swelling/shrinkage rate is only 1/5-1/10 of solid wood under humidity changes
Eco-Class:
E0: Formaldehyde emission ≤0.5mg/L (medical/children's furniture grade)
E1: Formaldehyde emission ≤1.5mg/L (China/EU mandatory standard)
Load Capacity: 18mm panel achieves ≥30MPa bending strength & ≥25MPa MOR
Classification Standards
Category Basis |
Examples |
Surface Wood |
Birch/Eucalyptus/Poplar/Teak |
Adhesive Type |
WBP (Weather & Boil Proof)/MR (Moisture Resistant) |
Layer Count |
3-ply/5-ply/Multi-ply |
Special Treatment |
Fire-retardant (OI≥30)/CCA-treated |
Applications
Construction: Concrete formwork (20-50 reuses), floor decking
Furniture: Cabinet substrates, curved furniture frames (bending radius≥15×thickness)
Transportation: Truck flooring (≥5 tons/㎡ load), marine bulkheads (BS1088 compliant)
Packaging: IPPC-certified export pallets, heavy machinery crates
1. Log Pretreatment
Debarked logs softened in 60-80°C hot water (12-48 hours)
Cut into 2.6m sections, defective cores removed
2. Veneer Peeling
Hydraulic lathe rotates logs to produce 0.3-4.5mm continuous veneer
Key specs: 20-30m/min speed, ±0.05mm thickness tolerance
3. Veneer Drying
Roller dryer reduces moisture from 60% to 8-12% at 120-180°C
Intelligent temp control prevents cracking
4. Gluing & Layup
Double-roller coater applies UF/PF adhesive (120-250g/㎡)
Auto-layup machine stacks odd layers cross-grain (3/5/7/9/11/18 plies)
5. Cold Pre-pressing
Hydraulic press applies 0.8-1.2MPa for 10-15 mins to remove air bubbles
6. Hot Pressing
15-opening hot press cures at 140-180°C under 2.5-3.5MPa
Pressing time = Panel thickness (mm) × 1.2 mins (e.g. 18mm → 21.6 mins)
7. Trimming
Crosscut & rip saws cut to 1220×2440mm (±0.5mm)
Dust extraction system collects wood chips
8. Sanding
4-head wide-belt sander (80→240 grit)
Surface roughness Ra≤3.2μm, thickness tolerance ±0.1mm
1. Hydraulic Peeler
φ115mm spindles, ±0.03mm peeling accuracy
Laser scanner adjusts blade gap in real-time
2. 8-Roller Dryer
Corrosion-resistant stainless steel rollers, 30% energy saving
Capacity: 1.8 tons wet veneer/hour
3. Double-Side Gluer
PID glue control (±3g/㎡ error)
HS80° hardness scraper rollers prevent missed spots
4. 15-Daylight Hot Press
3000T total pressure, platen flatness ≤0.02mm/m²
Thermal oil temp control ±1°C
5. CNC Trimming Saw
Servo-driven, 60m/min cutting speed
Infrared positioning ±0.1mm repeatability
6. 4-Head Sander
4×22kW sanding heads, 5-30m/min feed speed
Pneumatic pressure adapts to panel thickness
7. Central Dust Collector
45,000m³/h airflow, 0.3μm filtration
Pulse-jet cleaning for continuous operation
8. PLC Control Center
Industrial HMI monitors 200+ parameters
Auto-diagnosis responds in <2 seconds
1. Precision Standard Sizing
Exclusively designed for 1220×2440mm (4×8 feet) panels. Compatible with 0.3-25mm veneers, thickness tolerance ≤±0.2mm, ensuring compliance with international container shipping specs.
2. Modular Smart Production
Auto-feeder + infrared centering system + servo-driven cutting unit (±0.5mm accuracy). 15-layer 3000T hot press with ±1°C temp control reduces curing time by 30%.
3. Energy Efficiency
Frequency conversion tech cuts energy use by 40%. Sanding unit operates at 30m/min. Only 3-5 operators needed for 1000+ sheets/8-hour shift.
4. Eco-Compliance
Pulse dust removal & VOC recovery system. CE/ISO certified. Supports low-formaldehyde adhesives, meeting EU EN314-2 bonding strength standards.
Log Processing: Diameter 200-800mm, peeling speed 0-30m/min
Gluing System: Double-roller coating, adjustable glue volume 80-300g/㎡
Hot Press Section: Temp 140-180°C, pressure 2.5-3.5MPa, pressing time 1.2min/mm
Total Power: 380V/50Hz, standard 250kW (upgradable to 400kW)
Floor Space: 70m×15m (minimal layout)
Machines include:Veneer production line(Log debaker,Veneer peeling machine, Log loader,Automatic stacker)，Blade sharpener,Veneer patching machine,Veneer dryer machine(Veneer roller dryer, Veneer mesh dryer, Veneer press dryer), Veneer gluing machine,Plywood lay-up machine, Veneer jointing machine, Plywood cold press, Hot press machine,Plywood edge trimming cutting machine, Sanding and calibrating machine, Plywood overturn machine, Lift table, and so on.
Includes factory layout design, installation, operator training, 24-month warranty, and global spare parts delivery within 72 hours.
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
Plywood is a composite wood panel made by bonding multiple wood veneers with adhesives, stacked with adjacent layers' grains perpendicular. The cross-laminated odd-number structure (typically 3-21 layers) enhances mechanical stability and warp resistance.
Core Manufacturing Process
Log Processing: Logs steamed and rotary-cut into 0.3-6mm veneers, dried to 8-12% moisture content
Gluing & Layup: Urea-formaldehyde/phenolic/soy-based adhesives applied (80-300g/㎡)
Hot Pressing: Cured at 140-180°C under 2.5-3.5MPa pressure (1-1.5min/mm pressing time)
Finishing: Precision cutting (e.g. 1220×2440mm), sanding to surface roughness Ra≤3.2μm
Key Properties
Balanced Strength: Cross-grain construction reduces bending strength variation to <10% across directions
Dimensional Stability: Swelling/shrinkage rate is only 1/5-1/10 of solid wood under humidity changes
Eco-Class:
E0: Formaldehyde emission ≤0.5mg/L (medical/children's furniture grade)
E1: Formaldehyde emission ≤1.5mg/L (China/EU mandatory standard)
Load Capacity: 18mm panel achieves ≥30MPa bending strength & ≥25MPa MOR
Classification Standards
Category Basis |
Examples |
Surface Wood |
Birch/Eucalyptus/Poplar/Teak |
Adhesive Type |
WBP (Weather & Boil Proof)/MR (Moisture Resistant) |
Layer Count |
3-ply/5-ply/Multi-ply |
Special Treatment |
Fire-retardant (OI≥30)/CCA-treated |
Applications
Construction: Concrete formwork (20-50 reuses), floor decking
Furniture: Cabinet substrates, curved furniture frames (bending radius≥15×thickness)
Transportation: Truck flooring (≥5 tons/㎡ load), marine bulkheads (BS1088 compliant)
Packaging: IPPC-certified export pallets, heavy machinery crates
1. Log Pretreatment
Debarked logs softened in 60-80°C hot water (12-48 hours)
Cut into 2.6m sections, defective cores removed
2. Veneer Peeling
Hydraulic lathe rotates logs to produce 0.3-4.5mm continuous veneer
Key specs: 20-30m/min speed, ±0.05mm thickness tolerance
3. Veneer Drying
Roller dryer reduces moisture from 60% to 8-12% at 120-180°C
Intelligent temp control prevents cracking
4. Gluing & Layup
Double-roller coater applies UF/PF adhesive (120-250g/㎡)
Auto-layup machine stacks odd layers cross-grain (3/5/7/9/11/18 plies)
5. Cold Pre-pressing
Hydraulic press applies 0.8-1.2MPa for 10-15 mins to remove air bubbles
6. Hot Pressing
15-opening hot press cures at 140-180°C under 2.5-3.5MPa
Pressing time = Panel thickness (mm) × 1.2 mins (e.g. 18mm → 21.6 mins)
7. Trimming
Crosscut & rip saws cut to 1220×2440mm (±0.5mm)
Dust extraction system collects wood chips
8. Sanding
4-head wide-belt sander (80→240 grit)
Surface roughness Ra≤3.2μm, thickness tolerance ±0.1mm
1. Hydraulic Peeler
φ115mm spindles, ±0.03mm peeling accuracy
Laser scanner adjusts blade gap in real-time
2. 8-Roller Dryer
Corrosion-resistant stainless steel rollers, 30% energy saving
Capacity: 1.8 tons wet veneer/hour
3. Double-Side Gluer
PID glue control (±3g/㎡ error)
HS80° hardness scraper rollers prevent missed spots
4. 15-Daylight Hot Press
3000T total pressure, platen flatness ≤0.02mm/m²
Thermal oil temp control ±1°C
5. CNC Trimming Saw
Servo-driven, 60m/min cutting speed
Infrared positioning ±0.1mm repeatability
6. 4-Head Sander
4×22kW sanding heads, 5-30m/min feed speed
Pneumatic pressure adapts to panel thickness
7. Central Dust Collector
45,000m³/h airflow, 0.3μm filtration
Pulse-jet cleaning for continuous operation
8. PLC Control Center
Industrial HMI monitors 200+ parameters
Auto-diagnosis responds in <2 seconds
1. Precision Standard Sizing
Exclusively designed for 1220×2440mm (4×8 feet) panels. Compatible with 0.3-25mm veneers, thickness tolerance ≤±0.2mm, ensuring compliance with international container shipping specs.
2. Modular Smart Production
Auto-feeder + infrared centering system + servo-driven cutting unit (±0.5mm accuracy). 15-layer 3000T hot press with ±1°C temp control reduces curing time by 30%.
3. Energy Efficiency
Frequency conversion tech cuts energy use by 40%. Sanding unit operates at 30m/min. Only 3-5 operators needed for 1000+ sheets/8-hour shift.
4. Eco-Compliance
Pulse dust removal & VOC recovery system. CE/ISO certified. Supports low-formaldehyde adhesives, meeting EU EN314-2 bonding strength standards.
Log Processing: Diameter 200-800mm, peeling speed 0-30m/min
Gluing System: Double-roller coating, adjustable glue volume 80-300g/㎡
Hot Press Section: Temp 140-180°C, pressure 2.5-3.5MPa, pressing time 1.2min/mm
Total Power: 380V/50Hz, standard 250kW (upgradable to 400kW)
Floor Space: 70m×15m (minimal layout)
Machines include:Veneer production line(Log debaker,Veneer peeling machine, Log loader,Automatic stacker)，Blade sharpener,Veneer patching machine,Veneer dryer machine(Veneer roller dryer, Veneer mesh dryer, Veneer press dryer), Veneer gluing machine,Plywood lay-up machine, Veneer jointing machine, Plywood cold press, Hot press machine,Plywood edge trimming cutting machine, Sanding and calibrating machine, Plywood overturn machine, Lift table, and so on.
Includes factory layout design, installation, operator training, 24-month warranty, and global spare parts delivery within 72 hours.
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
