In the evolving world of MDF production, the ability to see and control fiber quality in real time has long been a missing piece. With wood fibers accounting for up to 80% of the final board composition, even minor inconsistencies in fiber morphology such as length, width, fines, and shives can significantly impact the final product quality and process efficiency.
Historically, MDF producers have relied on intermittent offline quality checks and operator intuition to maintain consistency. This reactive approach often led to overcompensation by using excess wood, glue, or energy to ensure product quality. However, the emergence of advanced digital tools is transforming this landscape, enabling a shift from experience-based operation to data-driven manufacturing.
ANDRITZ MDFEYE: REAL-TIME FIBER MEASUREMENT
At the forefront of this transformation is the MDFEye, a smart measuring system designed to provide continuous, high-resolution measurement of the fiber quality immediately after the refining. Using modern machine vision technology and advanced data analytics, the MDFEye analyses over 150,000 fibers per sample every 5 to 7 minutes. This real-time morphological profiling allows manufacturers to monitor and maintain optimal fiber characteristics.
By delivering a live stream of data on fiber length, width, shives, and fines, MDFEye eliminates the guesswork. Operators no longer need to rely on delayed lab results or subjective assessments. Instead, they gain a clear, data-backed view of what’s happening inside the process which enables smarter, faster decisions.
CLOSING THE LOOP WITH METRIS ACE
The true potential of MDFEye is unlocked when it is integrated with the ANDRITZ Software Metris ACE (Advanced Control Expert) a digital software controller that uses a set of tools to integrate all the process values and control the refining energy. ACE also interprets the data from MDFEye and translates it into real-time control actions, such as adjusting the glue dosing, or dryer steam pressure.
This closed-loop system ensures that the production process remains stable, even in the face of raw material variability. The AIdriven control logic continuously fine-tunes parameters to maintain consistent fiber quality, reduce energy consumption, and optimize glue and wood usage.
With the implementation of MDFEye and ACE, ANDRITZ has already delivered measurable benefits across multiple production sites. Reported outcomes include:
- Up to 10% energy savings per tons of production
- Faster process reaction times, with data updates every 5 to 7 minutes instead of the traditional 20-minute intervals
- Improved internal bond stability, leading to higher board quality
- Reduced operator interventions, thanks to autonomous control loops
The MDFEye extracts fibers from the blow line immediately after the refiner, mixes the sample with water to separate them from each other and captures images of all objects larger than 10 μm. The measurement data are stored in a local, transparent database.
The Metris ACE uses fiber characteristics defined by the operator, such as fiber length, to control the refiner’s energy input and ensure that the target value is continuously maintained. With the help of Metris AI tools and additional process data, the controller also takes other influences on fiber quality into account, further stabilizing the refining process.
Beyond the technical and economic advantages, the integration of MDFEye and ACE is reshaping the role of the operator. Rather than reacting to issues after they arise, operators now use optimized, selfregulating systems. The AI-powered process controller supports proactive decisionmaking, reduces manual workload, and enhances process transparency.
This evolution is a key milestone on the path to Industry 4.0. As plants become more autonomous, the focus shifts from troubleshooting to strategic optimization. Operators are empowered to manage by exception, intervening only when necessary, while the system handles routine adjustments in real time.
A TRANSPARENT, SELF-OPTIMIZING FUTURE
ANDRITZ sets with the combination of MDFEye and Metris ACE a significant leap forward in MDF manufacturing. What was once a black box where fiber quality was invisible, and process control was reactive is now a transparent, intelligent system capable of self-optimization.
This shift is not just about technology; it’s about redefining how MDF is produced. It’s a move from traditional, experience-based methods to a future where data, automation, and artificial intelligence work in harmony to deliver consistent quality, operational efficiency, and resource sustainability.
