MH
MINGHUNG
pine
eucalyptus
poplar
Primary Hardwood Species
1. Oak (White/Red)
Properties: High density (≈750kg/m³), superior bending strength, distinct grain
Application: Premium furniture, flooring substrates
2. Birch
Properties: Medium hardness (Janka 1260 lbf), exceptional lamination adhesion
Application: Aircraft-grade plywood, decorative veneers
3. Maple (Hard/Soft)
Properties: High wear resistance (1450 lbf hardness), uniform light-colored grain
Application: Musical instrument faces, billiard cue cores
4. Beech
Properties: High impact toughness, superior steam-bending capability
Application: Bentwood furniture, tool handles
5. Walnut
Properties: Chocolate-brown grain, dimensional stability (shrinkage ≤10%)
Application: Luxury packaging, gunstocks
Engineered Hardwoods
Species | Density (kg/m³) | Key Advantage |
Eucalyptus | 650-900 | Fast-growing, cost-effective |
Poplar | 400-500 | Lightweight structural core |
Lauan | 550-750 | Decay resistance Class 2 (EN 335) |
North America
Great Lakes Basin: Hard maple (65% global share), white oak
Appalachian Mountains: Black walnut (premium grade source)
Europe
Carpathian Mountains: Beech (Romania/Ukraine)
Baltic Coast: Birch (Sweden/Finland, high-density slow-growth timber)
Tropical Zones
Southeast Asia:
Malaysia/Indonesia: Meranti (Mahogany substitute)
Myanmar: Teak (Natural rot resistance)
Amazon Basin:
Brazil: Jatoba (Hardness 2900 lbf)
Emerging Plantations
Chilean Radiata Pine (Hardwood-treated plantation timber)
Guangxi Eucalyptus, China (30% density increase via genetic modification)
1. Performance-Oriented Formula (Structural Grade)
Layer | Wood Species | Thickness Ratio | Functional Design |
Face | Hard Maple/White Oak | 0.15 | High wear resistance (Janka≥1450 lbf) |
Crossband | Birch+Beech | 0.25 | Shear strength enhancement |
Core | Eucalyptus+Poplar OSB | 0.6 | Stabilizing base (MC≤8%) |
Parameters
Density: ≥720kg/m³
Adhesive: Phenolic Resin (PF)
Standard: EN 13986 (Load-bearing)
2. Cost-Effective Formula (Furniture Core)
Layer | Wood Combination | Ratio | Economic Advantage |
Face | Stained Lauan (Walnut imitation) | 0.1 | Reduce rare wood by 60% |
Crossband | Radiata Pine+Birch veneer | 0.2 | 85% fast-growing species |
Core | Poplar/Eucalyptus scrimber | 0.7 | Raw material cost ↓35% |
Key Process
Surface: UV texture enhancement
Adhesive: UF + Soy protein modification
3. Matching Design Principles
3.1 Density Gradient Principle
Surface layer > Subsequent layer > Core layer (e.g.: 780 → 650 → 550 kg/m³) to avoid stress cracking
3.2 Coordinated Control of Shrinkage Rates
The difference in radial shrinkage rate of each layer ≤ 1.5% (ASTM D143)
3.3 Optimization of Gluing Interface
Hardness layer uses MDI glue (isocyanate)
Porous fast-growing wood uses PF resin impregnation
Phase 1: Raw Material Preparation
1. Log Processing
Debarking: Drum debarker (bark residue ≤0.5%)
Bucking: Cross-cutting to veneer lengths (2.6m/2.8m/3.2m)
Steaming: Hydration softening (hardwood: 60-80℃/12-24h)
2. Veneer Production
Centering: Laser-guided pith positioning
Peeling: CNC lathe produces continuous veneer (0.3-3.5mm thick)
Drying: Roller dryer (MC 8±1%)
Phase 2: Layup Assembly
3. Veneer Grading
Defect detection: AI vision system (rejection rate ≥98%)
Grading:
AA (flawless) → Face layer
B (minor defects) → Crossband
C (repaired) → Core
4. Gluing & Layup
Adhesive application: 4-roller coater (120-180g/㎡)
Assembly:
Standard: Odd-layer cross-grain (90°adjacent)
Hybrid: Density-gradient stacking
Phase 3: Pressing & Curing
5. Pre-pressing
Pressure: 0.8-1.2MPa
Duration: 10-15 min (temporary bonding)
6. Hot Pressing
Multi-stage control:
Stage | Pressure(MPa) | Temp(℃) | Time(min) |
Ramp-up | 2.5-3.0 | 140-150 | 0.5-1 |
Dwell | 1.8-2.2 | 130-140 | 0.8×thickness(mm) |
Decompression | 0.5-0.8 | 100-110 | 0.3-0.5 |
Phase 4: Finishing
7. Conditioning
Climate-controlled storage (25℃/65%RH, 48-72h)
8. Calibrated Sanding
Coarse sanding: 36-grit belt (remove 0.3-0.5mm)
Fine sanding: 120-grit belt (tolerance ±0.1mm)
9. Trimming & Grading
Edge cutting: Quad saw (1220×2440mm)
Quality classification:
Grade A: Zero surface defects (EN 635-2)
Grade B: ≤3 repair points allowed
Raw Material Processing
1. Debarking & Bucking
Hydraulic Debarker: Dual-rotor design, handles Ø200-800mm logs, 30-50 logs/h
Laser Centering Saw: ±0.5mm precision, 6-axis cutting
2. Softening System
Steam Tunnel: Graded temp control (60℃→80℃→60℃) with MC sensors
RF Heater: Rapid penetration for hardwoods (e.g. Teak), 40% energy saving
Veneer Production
3. CNC Peeling Lathe
Servo motor + Hydraulic backup pressure
Specs:
Peeling tolerance: ±0.05mm
Max log diameter: Φ800mm
Hardness limit: Janka≤1500 lbf
4. Veneer Dryer
Type | Application | Efficiency |
Roller Dryer | Thin veneer (0.3-1.5mm) | 0.8-1.2t steam/㎡ |
Mesh Belt | Thick veneer (1.5-3.5mm) | IR dehumidification |
Continuous | 24/7 operation | Heat recovery |
Pressing Section
5. Auto Glue Spreader
4-Roller coating: Adjustable glue 80-200g/㎡
Adhesive compatibility: UF/PF/MDI triple channels
6. Layup Robot
Speed:
Standard: 4 sec/layer (cross-grain)
Hybrid: 7 sec/layer (density recognition)
Positioning accuracy: ±0.3mm
7. Hot Press System
Multi-opening Press (Standard)
Daylight: 20-40 layers
Platen size: 1400×2800mm
Max pressure: 5MPa
Temp control: ±2℃ (thermal oil)
Continuous Press (Premium)
Output: 800-1200 sheets/day (1220×2440mm)
Energy saving: Pressure-stage recovery
Finishing Line
8. Calibrating Sander
Coarse unit: 36-grit SiC belt, 0.5mm removal
Fine unit: 150-grit Al₂O₃ belt, Ra≤3.2μm
9. Smart Cutting Center
Dual-station laser positioning:
Main saw: Ø450mm carbide blade (edging)
Crosscut saw: Servo-driven (±0.5mm tolerance)
10. Auto Grading System
3D vision: Detects 12 defect types (knots/cracks/glue spots)
Grading accuracy: 99.2% (EN 635 compliant)
Equipment | Critical Parameter | Hybrid Hardwood Solution |
Peeling Lathe | Spindle torque≥8000N·m | Titanium blades (HRC65) |
Hot Press | Heating rate≥8℃/min | Tropical wood pressure profile |
Sander | Feed speed 5-30m/min | Diamond roller (+300% life) |
Grading System | 0.5 sec/sheet | Hardwood grain AI database |
We are Shandong MINGHUNG Wood Based Panel Machinery Co.,Ltd China factory and manufacturer of full sets of Plywood machinery and Veneer machinery. With many years production experience, advanced production technology,experienced workers and professional engineers, we can offer you the suitable, good and strong machinery for you.
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.
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.
Contact us for a free quote today!
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
pine
eucalyptus
poplar
Primary Hardwood Species
1. Oak (White/Red)
Properties: High density (≈750kg/m³), superior bending strength, distinct grain
Application: Premium furniture, flooring substrates
2. Birch
Properties: Medium hardness (Janka 1260 lbf), exceptional lamination adhesion
Application: Aircraft-grade plywood, decorative veneers
3. Maple (Hard/Soft)
Properties: High wear resistance (1450 lbf hardness), uniform light-colored grain
Application: Musical instrument faces, billiard cue cores
4. Beech
Properties: High impact toughness, superior steam-bending capability
Application: Bentwood furniture, tool handles
5. Walnut
Properties: Chocolate-brown grain, dimensional stability (shrinkage ≤10%)
Application: Luxury packaging, gunstocks
Engineered Hardwoods
Species | Density (kg/m³) | Key Advantage |
Eucalyptus | 650-900 | Fast-growing, cost-effective |
Poplar | 400-500 | Lightweight structural core |
Lauan | 550-750 | Decay resistance Class 2 (EN 335) |
North America
Great Lakes Basin: Hard maple (65% global share), white oak
Appalachian Mountains: Black walnut (premium grade source)
Europe
Carpathian Mountains: Beech (Romania/Ukraine)
Baltic Coast: Birch (Sweden/Finland, high-density slow-growth timber)
Tropical Zones
Southeast Asia:
Malaysia/Indonesia: Meranti (Mahogany substitute)
Myanmar: Teak (Natural rot resistance)
Amazon Basin:
Brazil: Jatoba (Hardness 2900 lbf)
Emerging Plantations
Chilean Radiata Pine (Hardwood-treated plantation timber)
Guangxi Eucalyptus, China (30% density increase via genetic modification)
1. Performance-Oriented Formula (Structural Grade)
Layer | Wood Species | Thickness Ratio | Functional Design |
Face | Hard Maple/White Oak | 0.15 | High wear resistance (Janka≥1450 lbf) |
Crossband | Birch+Beech | 0.25 | Shear strength enhancement |
Core | Eucalyptus+Poplar OSB | 0.6 | Stabilizing base (MC≤8%) |
Parameters
Density: ≥720kg/m³
Adhesive: Phenolic Resin (PF)
Standard: EN 13986 (Load-bearing)
2. Cost-Effective Formula (Furniture Core)
Layer | Wood Combination | Ratio | Economic Advantage |
Face | Stained Lauan (Walnut imitation) | 0.1 | Reduce rare wood by 60% |
Crossband | Radiata Pine+Birch veneer | 0.2 | 85% fast-growing species |
Core | Poplar/Eucalyptus scrimber | 0.7 | Raw material cost ↓35% |
Key Process
Surface: UV texture enhancement
Adhesive: UF + Soy protein modification
3. Matching Design Principles
3.1 Density Gradient Principle
Surface layer > Subsequent layer > Core layer (e.g.: 780 → 650 → 550 kg/m³) to avoid stress cracking
3.2 Coordinated Control of Shrinkage Rates
The difference in radial shrinkage rate of each layer ≤ 1.5% (ASTM D143)
3.3 Optimization of Gluing Interface
Hardness layer uses MDI glue (isocyanate)
Porous fast-growing wood uses PF resin impregnation
Phase 1: Raw Material Preparation
1. Log Processing
Debarking: Drum debarker (bark residue ≤0.5%)
Bucking: Cross-cutting to veneer lengths (2.6m/2.8m/3.2m)
Steaming: Hydration softening (hardwood: 60-80℃/12-24h)
2. Veneer Production
Centering: Laser-guided pith positioning
Peeling: CNC lathe produces continuous veneer (0.3-3.5mm thick)
Drying: Roller dryer (MC 8±1%)
Phase 2: Layup Assembly
3. Veneer Grading
Defect detection: AI vision system (rejection rate ≥98%)
Grading:
AA (flawless) → Face layer
B (minor defects) → Crossband
C (repaired) → Core
4. Gluing & Layup
Adhesive application: 4-roller coater (120-180g/㎡)
Assembly:
Standard: Odd-layer cross-grain (90°adjacent)
Hybrid: Density-gradient stacking
Phase 3: Pressing & Curing
5. Pre-pressing
Pressure: 0.8-1.2MPa
Duration: 10-15 min (temporary bonding)
6. Hot Pressing
Multi-stage control:
Stage | Pressure(MPa) | Temp(℃) | Time(min) |
Ramp-up | 2.5-3.0 | 140-150 | 0.5-1 |
Dwell | 1.8-2.2 | 130-140 | 0.8×thickness(mm) |
Decompression | 0.5-0.8 | 100-110 | 0.3-0.5 |
Phase 4: Finishing
7. Conditioning
Climate-controlled storage (25℃/65%RH, 48-72h)
8. Calibrated Sanding
Coarse sanding: 36-grit belt (remove 0.3-0.5mm)
Fine sanding: 120-grit belt (tolerance ±0.1mm)
9. Trimming & Grading
Edge cutting: Quad saw (1220×2440mm)
Quality classification:
Grade A: Zero surface defects (EN 635-2)
Grade B: ≤3 repair points allowed
Raw Material Processing
1. Debarking & Bucking
Hydraulic Debarker: Dual-rotor design, handles Ø200-800mm logs, 30-50 logs/h
Laser Centering Saw: ±0.5mm precision, 6-axis cutting
2. Softening System
Steam Tunnel: Graded temp control (60℃→80℃→60℃) with MC sensors
RF Heater: Rapid penetration for hardwoods (e.g. Teak), 40% energy saving
Veneer Production
3. CNC Peeling Lathe
Servo motor + Hydraulic backup pressure
Specs:
Peeling tolerance: ±0.05mm
Max log diameter: Φ800mm
Hardness limit: Janka≤1500 lbf
4. Veneer Dryer
Type | Application | Efficiency |
Roller Dryer | Thin veneer (0.3-1.5mm) | 0.8-1.2t steam/㎡ |
Mesh Belt | Thick veneer (1.5-3.5mm) | IR dehumidification |
Continuous | 24/7 operation | Heat recovery |
Pressing Section
5. Auto Glue Spreader
4-Roller coating: Adjustable glue 80-200g/㎡
Adhesive compatibility: UF/PF/MDI triple channels
6. Layup Robot
Speed:
Standard: 4 sec/layer (cross-grain)
Hybrid: 7 sec/layer (density recognition)
Positioning accuracy: ±0.3mm
7. Hot Press System
Multi-opening Press (Standard)
Daylight: 20-40 layers
Platen size: 1400×2800mm
Max pressure: 5MPa
Temp control: ±2℃ (thermal oil)
Continuous Press (Premium)
Output: 800-1200 sheets/day (1220×2440mm)
Energy saving: Pressure-stage recovery
Finishing Line
8. Calibrating Sander
Coarse unit: 36-grit SiC belt, 0.5mm removal
Fine unit: 150-grit Al₂O₃ belt, Ra≤3.2μm
9. Smart Cutting Center
Dual-station laser positioning:
Main saw: Ø450mm carbide blade (edging)
Crosscut saw: Servo-driven (±0.5mm tolerance)
10. Auto Grading System
3D vision: Detects 12 defect types (knots/cracks/glue spots)
Grading accuracy: 99.2% (EN 635 compliant)
Equipment | Critical Parameter | Hybrid Hardwood Solution |
Peeling Lathe | Spindle torque≥8000N·m | Titanium blades (HRC65) |
Hot Press | Heating rate≥8℃/min | Tropical wood pressure profile |
Sander | Feed speed 5-30m/min | Diamond roller (+300% life) |
Grading System | 0.5 sec/sheet | Hardwood grain AI database |
We are Shandong MINGHUNG Wood Based Panel Machinery Co.,Ltd China factory and manufacturer of full sets of Plywood machinery and Veneer machinery. With many years production experience, advanced production technology,experienced workers and professional engineers, we can offer you the suitable, good and strong machinery for you.
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.
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.
Contact us for a free quote today!
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
