MH-PB-PM
MINGHUNG
I. Working Principle
The automatic mechanical particleboard spreading line operates on the principle of graded spreading + mechanical scattering + roller leveling. The core process is as follows:
1. Layered Feeding
Fine surface particles and coarse core particles are stored in separate bins and metered to their respective spreading heads according to set ratios.
2. Mechanical Scattering & Spreading
Particles enter the spreading head and are evenly scattered onto the forming belt below by high-speed rotating scattering rollers (or toothed rollers). Scattering intensity and speed are adjustable to suit different particle sizes.
3. Roller Leveling & Thickness Setting
The loose mat passes through multiple leveling rollers (or scraping rollers) for surface smoothing and thickness pre-compression, keeping cross-web thickness variation very low.
4. Continuous Mat Forming
The forming belt continuously delivers the mat to a pre-press or directly to the hot press for subsequent pressing.
The line typically adopts a surface/core layered spreading configuration: bottom surface layer → core layer → top surface layer, forming a three-layer standard particleboard.
Component | Function Description |
1. Metering Bins | Separate storage for fine surface and coarse core particles, with discharge metering devices (belt or screw). |
2. Surface Spreading Head | Spreads fine particles to form dense, smooth top and bottom surfaces. |
3. Core Spreading Head | Spreads coarse particles to form the internal structural skeleton. |
4. Scattering Roller Sets | Core component of the spreading head; rotates at high speed to evenly scatter particles. |
5. Forming Conveyor Belt | Carries the mat continuously; speed is VFD adjustable. |
6. Leveling / Scraper Rollers | Smooth mat thickness, compact surface layers, and remove excess material. |
7. Mat Weighing System | Monitors spreading amount in real time, with closed-loop control of feeding speed. |
8. Thickness Control System | Scans mat cross-section thickness, automatically adjusts leveling roller gap. |
9. Electrical Control System | PLC + touchscreen for full-line automation and data monitoring. |
10. Frame & Safety Guards | Integrated frame with maintenance platforms and safety doors. |
Parameter | Value/Range |
Spreading Width | 1220 – 2800 mm |
Line Speed | ≤ 30 m/min |
Mat Thickness Range | 8 – 40 mm |
Spreading Accuracy (weight deviation) | ≤ ±2.0% |
Cross-thickness Deviation | ≤ ±0.3 mm |
Installed Power | 55 – 160 kW |
Production Capacity | 5 – 30 m³/h (varies by width) |
IV. Core Advantages
1. Automatic Layered Spreading
Surface and core layers are independently controlled, allowing precise adjustment of each layer's spreading amount for particleboard with different density and strength requirements.
2. High-Precision Mechanical Scattering
Simple and reliable scattering roller design; no compressed air required; low energy consumption and easy maintenance.
3. Excellent Mat Uniformity
Combined with leveling rollers and closed-loop weighing, cross-web density variation is minimized, reducing board warping risk.
4. Adaptable to Various Particle Types
Can handle wood and non-wood particles (straw, bamboo chips, etc.) of different sizes, moisture contents, and grades.
5. Intelligent Control
Recipe storage, one‑click product changeover, fault diagnosis, remote assistance, and other functions are fully featured.
V. Subsequent Machinery After the Spreader
Subsequent Equipment | Function Description |
Mat Pre-press | Continuously pre-compresses the loose mat, removes air, increases mat strength for entry into the hot press. |
Mat Cross/Trimming Cut-off | Cuts the continuous mat to hot press尺寸 width and length. |
Acceleration Conveyor | Matches mat speed to hot press infeed, preventing bunching or tearing. |
Multi-opening or Continuous Hot Press | Cures the mat under high temperature and pressure to produce finished particleboard. |
Cooling Turner | Cools the board after hot pressing, releases internal stress, prevents warping. |
Edge Trimmer | Trims rough edges after cooling to obtain standard-sized panels. |
Stacking System | Automatically stacks finished boards for warehousing and transport. |
Upgrade your production line now!
We provide global installation support and technical training, 1-year machine warranty, and 24-hour online response.
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Email: osbmdfmachinery@gmail.com
