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No Added Formaldehyde MDF Production Line

This production line is an advanced manufacturing system specifically engineered for producing high-standard "No Added Formaldehyde" (NAF) Medium Density Fiberboard. It replaces traditional formaldehyde-based adhesives like urea-formaldehyde resin with eco-friendly alternatives such as isocyanate glue (e.g., MDI) or other formaldehyde-free bio-based binders. This ensures the final boards achieve non-detectable or extremely stringent top international emission standards , providing truly safe, healthy, and environmentally friendly substrates for furniture manufacturing, interior decoration, children's products, and more. The complete line guarantees excellent physical and mechanical properties (notably superior moisture resistance and internal bond strength) while enabling green production from raw materials to finished boards.
 
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No Added Formaldehyde MDF Production Line

MDF production line equipment


Equipment Configuration Introduction  


  Raw Material Handling Section: Similar to conventional lines, includes chipping, screening, and storage systems to ensure chip cleanliness.


Wood chipping process

chipper

MINGHUNG Scraper Conveyor for PB OSB MDF Production Line

vibrating screen


  Fiber Preparation & Blending Section (Key Difference):

  Refining System: High-precision defibrator for producing quality fibers.

Fiber Cooking and Refining Systems for MDF Production Lines


  Formaldehyde-Free Adhesive System: Dedicated storage, temperature control, precise metering, and application system for MDI glue (or other non-formaldehyde binders). This system requires excellent anti-sticking, cleaning, and metering stability due to MDI's moisture sensitivity and adhesive nature.

Glue control system for mdf production line


  Additive System: Equipment for precise addition of release agents (essential due to MDI's strong adhesion) and waterproofing agents.


  Fiber Drying System: High-efficiency dryer strictly controlling final fiber moisture content to meet the process requirements of formaldehyde-free glue.

Rotary drum dryer for making FOSB


  Forming & Hot Pressing Section:

  Forming & Pre-Pressing System: High-precision forming station and pre-press to create a uniform mat.

Continuous pre press machine for PB OSB MDF wood-based panel production line

pre press

Forming Machine PB OSB MDF Production Line

mat forming machine


  Continuous Flat Press: The core equipment, where precise temperature and pressure control are crucial for perfect curing of the formaldehyde-free adhesive.

MINGHUNG Continuous Hot Press Machine Line Chipboard Production Line


Finishing Section: Cooling, cutting, stacking, sanding, inspection, and packaging systems.

PB MDF OSB Production Line Continuous Hot Press Machine Line

dryer rack

MINGHUNG PB OSB MDF Automatic Trimming Sawing Machine

cross-cut saw

High Density Fiberboard Sanding Machine Line

sanding machine


  Control & Environmental Systems:

  Advanced Intelligent Control System: Integrated line automation, specifically optimized for formaldehyde-free glue process parameters.

  Energy Plant & Exhaust Treatment: High-efficiency thermal energy center, potentially equipped with more sophisticated exhaust treatment to handle minimal VOCs from the MDI process.


Main Specifications  


  Production Line Capacity:

      Product Width: Standard widths like 1220mm, 1830mm, 2440mm, or custom widths (e.g., 2070mm, 2800mm).

      Product Thickness Range: Typically 2mm to 40mm.

      Designed Annual Capacity: Customizable, e.g., 100,000 to 300,000 cubic meters/year.

      Line Operating Speed: Adjustable based on product thickness.

  Key Product Indicators:

      Formaldehyde Emission Standard: Complies with and exceeds CARB NAF, EPA NAF, Japan F★★★★ standards. Tested via chamber method, typically showing "Non-Detectable (ND)".

      Physical & Mechanical Properties: Meets or exceeds relevant national standards (e.g., GB/T 11718), often featuring higher Internal Bond (IB) strength and better moisture resistance (optional).

      Board Density: Adjustable range, typical 600-880 kg/m³.


MDF Production Process  


1.  Chip Preparation: Raw material chipping, washing, screening.

2.  Fiber Separation: Chips are defibrated in a refiner.

3.  Formaldehyde-Free Blending & Drying (Key Step): Dried fibers are physically blended (not chemically reacted) with precisely metered MDI glue (and release agent, wax, etc.) in a dedicated pipeline, then conditioned to optimal moisture content in the dryer.

4.  Mat Forming: Blended fibers are formed into a uniform, fluffy mat.

5.  Pre-Pressing & Conveying: The mat is lightly compacted by the pre-press and fed into the continuous press.

6.  Hot Pressing & Curing: In the continuous press, the MDI glue reacts with moisture in the fibers, cross-linking and curing to form a high-strength board strip.

7.  Cooling & Conditioning: The hot board is cooled and stabilized. Sometimes a conditioning period is needed for full property stabilization.

8.  Cutting & Sanding: The board strip is cut to size and sanded on both sides for a smooth surface and precise thickness.

9.  Inspection & Packing: Quality inspection (including sampling for formaldehyde emission testing) is performed. Qualified boards are packed for storage.


MDF production proces


MDF Applications  


No-Added-Formaldehyde MDF is specifically intended for applications demanding the highest indoor air quality due to its exceptional environmental and health benefits:

  High-End & Children's Furniture: Cribs, children's wardrobes, desks, toy cabinets.

  Medical & Educational Institutions: Hospital ward furniture, school desks and chairs, kindergarten facilities.

  High-Standard Interior Decoration: Wall panels, door cores, feature wall substrates for luxury hotels and apartments.

  Export Products with Strict Environmental Requirements: High-end custom furniture and cabinets targeting markets like North America, Europe, and Japan.

  Musical Instruments & Precision Instrument Packaging Cases.


Our Services  


  Turnkey Project Service: Provides a complete solution from factory planning, equipment supply, installation & commissioning, to worker training.

  Process & Formulation Technical Support: Offers proven core production formulas for NAF MDF and optimizes them based on local raw materials.

  Continuous Upgrading & Maintenance: Provides spare parts supply, remote technical support, regular maintenance, and process upgrade services.

  Market & Marketing Consultation: Shares trends in the formaldehyde-free board market and assists customers in positioning for the high-end segment.


Production workshop (4)




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