Thanks to this investment, students of the HTL and technical college now have access to a state-of-the-art solution that fully automates the entire straightening process of large band saw blades with high precision and reproducibility. The system measures unevenness and tension conditions in the band saw blade, selectively rolls out dents and bulges, and reintroduces the required tension exactly at the correct positions.

The new ISELI straightening center ideally complements the fully automatic band saw profile grinding machine BNP 100, which was installed the previous year. Together, the two systems form a continuous, modern process chain for sharpening, straightening, and optimizing band saw blades—exactly as used today in high-performance sawmills.
 

High educational value through state-of-the-art automation

By using CNC-controlled ISELI machines, trainees are able to transfer theoretical knowledge directly into practice. A wide variety of tooth geometries can be independently programmed, ground, and analyzed in terms of their effect on cutting performance. The CNC technology with two controlled axes provides a deep understanding of automated manufacturing processes in the modern sawmill industry.

The BNP 100 automatically grinds each individual tooth of a band saw blade into the exact geometry required. Depending on wood species, season, and operating conditions, tooth geometries can be specifically adapted to ensure optimal chip evacuation and maximum cutting performance. This combination of digital planning, CNC manufacturing, and practical application makes training at Holztechnikum Kuchl particularly practice-oriented and future-focused.

With the integration of the ISELI straightening center as well as the BNP 100, Holztechnikum Kuchl is technologically up to date—and ISELI once again underlines its commitment to providing leading sharpening and straightening technology “Made in Switzerland” for industry and education.

Link to the article by Holztechnikum Kuchl