MH-OSB
MINGHUNG
1. Raw Material Handling Stage
Raw Material:
Logs: Fast-growing species (e.g., poplar, pine) with diameters ≥80mm.
Debarking: Drum debarker required to handle 100+ m³ logs/day.
Equipment:
Stranding Line:
Disk Flakers (2 sets): Produces strands (75–150mm long, 0.5–0.7mm thick).
Strand Screening: Oscillating screens to separate fines/oversize strands.
Drying System (2-stage):
Rotary Drum Dryers (2 units): Dries strands to 2–4% moisture (capacity: ~6t/h bone-dry strands each).
Safety: Explosion suppression + moisture control.
flaker machine
dryer
2. Blending & Forming Stage
Resin System:
PMDI/Wax Resin: High-pressure spray blenders (2–3% resin content).
Facing/Core Layer Blending: Separate systems for surface/core strands.
Forming:
Cross-Oriented Formers:
Mechanical + Wind Sifter: Achieves cross-layered mat (surface strands longitudinal; core transverse).
Mat Width: 4.8m (to match press dimensions).
glue system
forming machine
3. Pre-Pressing & Pressing Stage
Pre-Press:
Continuous Belt Pre-Press: Compacts mat to 1/3 thickness (critical for 18mm board).
Multi-Opening Hot Press (Core Equipment):
Specifications:
Openings: 10–12 layers (e.g., 4.8m x 9.6m platen size).
Pressure: ≤5.0 MPa (adjustable for core/surface layers).
Heating: Thermal oil (220–240°C).
Cycle Time: 8–10 min/opening (for 18mm curing).
Output Calculation:
Press cycles/day (22h): 22h × 60min ÷ 9min ≈ 146 cycles.
Daily output: 146 cycles × (4.8m × 9.6m × 0.018m × 10 openings) × 0.85 (efficiency) ≈ 103 m³/day.
Annual output (300 days): 103 × 300 = 30,900 m³ → Requires optimization to reach 50,000m³.
pre press machine
Multi-layer press machine
4. Finishing & Quality Control:
Cooling: Star Cooler (48h): Conditions boards to <45°C.
Cutting: Cross-Cut Saw + Trimmer: Cuts to 2.5m/5m lengths; edges trimmed.
Quality:
Density Profile Control: Ensures uniform core/surface density (650–680kg/m³).
IB/MOE Testing Lab: On-site quality validation.
dryer rack
cross-cut saw
The multi-opening press is a batch-type hot press that simultaneously compresses multiple mats through vertically stacked heated platens.
Its workflow:
1. Loading: Mats are fed layer-by-layer into press openings (mechanically or manually).
2. Closing & Pressurization: Hydraulic system closes platens under high heat/pressure (180–240°C, 3–5 MPa).
3. Curing: Resin cures during set dwell time (thickness-dependent, e.g., 7–10 min for 18mm boards).
4. Unloading: Platens open; finished boards are removed layer-by-layer.
1. Core Structural Components
Component | Function & Specifications |
Heated Platens | Chromium-plated steel with internal channels for thermal media (oil/steam). Flatness tolerance: ±0.05mm. |
Hydraulic System | Generates closing force (15–30 MPa). Proportional valves enable multi-stage pressure control (fast approach → low → high pressure). |
Frame | Cast or welded steel structure (≥5,000-ton rigidity) ensuring inter-platen parallelism. |
Heating System | Thermal oil circulation (240°C max) or steam (180°C). Thermal efficiency: 60–70%. |
Control System | PLC automation for temp/pressure/time. Recipe storage for different board parameters. |
2. Multi-Opening Press vs. Continuous Press
Parameter | Multi-Opening Press | Continuous Press |
Capital Cost | Lower ($6–9M) | Higher ($15–25M) |
Ideal Thickness | Thick boards (12–40mm) | Thin boards (3–20mm) |
Production Speed | Moderate (30% cycle time lost to loading) | High (continuous operation) |
Board Quality | Lower edge density; requires sanding | Uniform density; superior surface finish |
Energy Use | Higher (intermittent heating + oil systems) | Lower (steam heating + continuous transfer) |
Flexibility | Easy thickness/resin changes | Complex changeovers |
3. Multi-Opening Press Industry Applications
Oriented Strand Board (OSB):
Ideal for 18–40mm structural panels (wall/roof sheathing). High pressure ensures core resin cure.
Thick MDF:
Avoids "soft edges" in boards >25mm vs. continuous presses.
Specialty Panels:
Fire-resistant/marine panels requiring extended cure times.
4.Critical Considerations for OSB with Multi-Opening Press
（1）Product Flexibility:
Ideal for 12–40mm thick boards (e.g., construction OSB/3).
Limited surface finish vs. continuous press (sanding required for flooring).
（2）Labor & Efficiency:
Cons: Higher labor (loading/unloading), 15–20% lower uptime vs. continuous press.
Pros: 30–40% lower CAPEX, easier maintenance.
（3）Energy Footprint:
Thermal oil system consumes 15–20% more energy than steam-heated continuous presses.
（4）Environmental Compliance:
PMDI Resin: Requires stringent VOC scrubbing (RTO incinerator: +$1.2M).
1. Press Optimization:
Increase Openings to 16–18 layers + Reduce Cycle Time to 7min:
Daily output: (22×60÷7) × (4.8×9.6×0.018×16) × 0.85 ≈ 174 m³/day → 52,200 m³/year.
High-Pressure Closing System: Faster platen movement.
2. Parallel Production Lines:
Dual Stranding/Drying Lines → Feed 1 forming line + 1 press.
3. Automated Handling:
Robotic loading/unloading to cut press idle time by 20%.
Let's Discuss Your Needs & Get a Tailored Solution !
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
1. Raw Material Handling Stage
Raw Material:
Logs: Fast-growing species (e.g., poplar, pine) with diameters ≥80mm.
Debarking: Drum debarker required to handle 100+ m³ logs/day.
Equipment:
Stranding Line:
Disk Flakers (2 sets): Produces strands (75–150mm long, 0.5–0.7mm thick).
Strand Screening: Oscillating screens to separate fines/oversize strands.
Drying System (2-stage):
Rotary Drum Dryers (2 units): Dries strands to 2–4% moisture (capacity: ~6t/h bone-dry strands each).
Safety: Explosion suppression + moisture control.
flaker machine
dryer
2. Blending & Forming Stage
Resin System:
PMDI/Wax Resin: High-pressure spray blenders (2–3% resin content).
Facing/Core Layer Blending: Separate systems for surface/core strands.
Forming:
Cross-Oriented Formers:
Mechanical + Wind Sifter: Achieves cross-layered mat (surface strands longitudinal; core transverse).
Mat Width: 4.8m (to match press dimensions).
glue system
forming machine
3. Pre-Pressing & Pressing Stage
Pre-Press:
Continuous Belt Pre-Press: Compacts mat to 1/3 thickness (critical for 18mm board).
Multi-Opening Hot Press (Core Equipment):
Specifications:
Openings: 10–12 layers (e.g., 4.8m x 9.6m platen size).
Pressure: ≤5.0 MPa (adjustable for core/surface layers).
Heating: Thermal oil (220–240°C).
Cycle Time: 8–10 min/opening (for 18mm curing).
Output Calculation:
Press cycles/day (22h): 22h × 60min ÷ 9min ≈ 146 cycles.
Daily output: 146 cycles × (4.8m × 9.6m × 0.018m × 10 openings) × 0.85 (efficiency) ≈ 103 m³/day.
Annual output (300 days): 103 × 300 = 30,900 m³ → Requires optimization to reach 50,000m³.
pre press machine
Multi-layer press machine
4. Finishing & Quality Control:
Cooling: Star Cooler (48h): Conditions boards to <45°C.
Cutting: Cross-Cut Saw + Trimmer: Cuts to 2.5m/5m lengths; edges trimmed.
Quality:
Density Profile Control: Ensures uniform core/surface density (650–680kg/m³).
IB/MOE Testing Lab: On-site quality validation.
dryer rack
cross-cut saw
The multi-opening press is a batch-type hot press that simultaneously compresses multiple mats through vertically stacked heated platens.
Its workflow:
1. Loading: Mats are fed layer-by-layer into press openings (mechanically or manually).
2. Closing & Pressurization: Hydraulic system closes platens under high heat/pressure (180–240°C, 3–5 MPa).
3. Curing: Resin cures during set dwell time (thickness-dependent, e.g., 7–10 min for 18mm boards).
4. Unloading: Platens open; finished boards are removed layer-by-layer.
1. Core Structural Components
Component | Function & Specifications |
Heated Platens | Chromium-plated steel with internal channels for thermal media (oil/steam). Flatness tolerance: ±0.05mm. |
Hydraulic System | Generates closing force (15–30 MPa). Proportional valves enable multi-stage pressure control (fast approach → low → high pressure). |
Frame | Cast or welded steel structure (≥5,000-ton rigidity) ensuring inter-platen parallelism. |
Heating System | Thermal oil circulation (240°C max) or steam (180°C). Thermal efficiency: 60–70%. |
Control System | PLC automation for temp/pressure/time. Recipe storage for different board parameters. |
2. Multi-Opening Press vs. Continuous Press
Parameter | Multi-Opening Press | Continuous Press |
Capital Cost | Lower ($6–9M) | Higher ($15–25M) |
Ideal Thickness | Thick boards (12–40mm) | Thin boards (3–20mm) |
Production Speed | Moderate (30% cycle time lost to loading) | High (continuous operation) |
Board Quality | Lower edge density; requires sanding | Uniform density; superior surface finish |
Energy Use | Higher (intermittent heating + oil systems) | Lower (steam heating + continuous transfer) |
Flexibility | Easy thickness/resin changes | Complex changeovers |
3. Multi-Opening Press Industry Applications
Oriented Strand Board (OSB):
Ideal for 18–40mm structural panels (wall/roof sheathing). High pressure ensures core resin cure.
Thick MDF:
Avoids "soft edges" in boards >25mm vs. continuous presses.
Specialty Panels:
Fire-resistant/marine panels requiring extended cure times.
4.Critical Considerations for OSB with Multi-Opening Press
（1）Product Flexibility:
Ideal for 12–40mm thick boards (e.g., construction OSB/3).
Limited surface finish vs. continuous press (sanding required for flooring).
（2）Labor & Efficiency:
Cons: Higher labor (loading/unloading), 15–20% lower uptime vs. continuous press.
Pros: 30–40% lower CAPEX, easier maintenance.
（3）Energy Footprint:
Thermal oil system consumes 15–20% more energy than steam-heated continuous presses.
（4）Environmental Compliance:
PMDI Resin: Requires stringent VOC scrubbing (RTO incinerator: +$1.2M).
1. Press Optimization:
Increase Openings to 16–18 layers + Reduce Cycle Time to 7min:
Daily output: (22×60÷7) × (4.8×9.6×0.018×16) × 0.85 ≈ 174 m³/day → 52,200 m³/year.
High-Pressure Closing System: Faster platen movement.
2. Parallel Production Lines:
Dual Stranding/Drying Lines → Feed 1 forming line + 1 press.
3. Automated Handling:
Robotic loading/unloading to cut press idle time by 20%.
Let's Discuss Your Needs & Get a Tailored Solution !
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
