1. Reinforced Frame Structure  

Box-welded frame: Bending stiffness ≥5×10⁶ N·m/rad (vs. 3×10⁶ for standard presses)  

Column preloading: Hydraulic synchronous tensioning system (preload error <±1%)  

2. High-Pressure Heating Platens  

3. Anti-Deflection Steel Belts  

Reinforced alloy belts: Thickness 12–15 mm (vs. 8–10 mm standard), pre-tension 8 kN/cm  

Surface treatment: Laser texturing + tungsten carbide coating (HV1200 hardness)  

4. Intelligent Thickness Control  

Gamma-ray density profiler: Scans cross-sectional density every 2 seconds  

Hydraulic servo closed-loop: Dynamically adjusts zonal pressure based on density data  

Core challenges: Insufficient core curing and density gradient control – solved via custom pressure profile:  

1. Profile Design Principle  

Ultra-high inlet pressure  -->  Mid-section pressure relief  -->  Secondary pressurization  -->  Stepwise pressure reduction

2. Four-Stage Pressure Profile  

3. Supporting Technologies  

- Resin cure monitoring:  

 - Embedded thermocouples monitor core temp (±1°C accuracy)  

 - Triggers secondary pressurization at PMDI optimal cure temp (160°C)  

- Mat moisture synergy:  

 - Surface moisture: 8–10%, Core: 11–13%  

 - Microwave sensors adjust resin application in real-time  

1. Forming System Upgrades  

Triple-channel forming head:  

  Surface: fine particles (<1mm)  

  Core: large flakes (3–5mm)  

  Transition layer: gradient particles  

Forming speed: ≤0.8 m/s (vs. 1.5 m/s for standard boards)  

2. Post-Processing Optimization  

Staged cooling:  

  Stage 1: High-pressure air cooling (prevents surface warping)  

  Stage 2: Low-temp slow cooling (core cooling rate ≤0.5°C/min)  

Double-sided sanding:  

  Sanding allowance 3–5 mm (vs. 1–2 mm standard)  

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), andVeneerable super strong particle board (LSB).