Grenzebach provides complete production technology for manufacturing flexible wood fiber insulation products—from dried wood fiber to packaged insulation batts. Whether individual components or fully integrated production lines, our solutions cover the entire production process: mixing, forming, curing, processing, refining, and packaging.

As a reliable partner, Grenzebach supports you in developing innovative insulation production projects—from plant design to commissioning, always efficient, trustworthy, and future-focused.

Grenzebach has developed a sustainable stone wool production line in response to rising energy costs and growing demand for insulation materials. This line, which uses basalt and dolomite as its primary raw materials, is a testament to our commitment to environmental sustainability. The process begins with melting these stones in a furnace, followed by fiberization using a spinning machine. The fibers are then formed into a continuous fibrous web, which is processed through a curing oven. Finally, the cured product is cut and handled to produce the final boards at the cold end.

Grenzebach offers veneer manufacturers a complete range of drying solutions, from individual dryers with manual feeders to fully automated drying lines with scanners and stackers. With more than 400 plants installed worldwide, Grenzebach is a trusted partner for high-quality veneer production. The AI-supported ROSI (Real-Time Optical Surface Inspection) system provides precise, real-time surface inspection, reducing scrap and optimizing material flow. With over 60 years of drying expertise, Grenzebach also modernizes existing veneer dryers, including Babcock models, to meet today’s performance standards.

Gypsum plasterboard plays a key role in modern interior design, offering versatility and high performance when raw material properties and end-product characteristics are precisely aligned. Grenzebach draws on decades of expertise to deliver tailored production lines that provides premium quality gypsum. A standout innovation is the Ultra High-Efficiency Dryer (UHE Dryer). Compared to the best available dryers, it saves up to 33% in energy through a sophisticated combination of high- and low-temperature sections, including a transition zone. The low-temperature section utilizes 100% waste heat, reaching values of up to 400 kcal/kg. In addition, the dryer recovers between 45% and 50% of water, and is compatible with renewable energy sources and low-calorific heat — an industry first. This efficiency enables significant cost savings, and supports sustainable production processes.

The capabilities of gypsum as a building material depends to a great extent on the chemical composition of the raw material. To provide targeted, high-quality processing into gypsum plaster, plasterboard or gypsum blocks, you need technology solutions that process natural or synthetic gypsum into stucco or high-fired plaster. With its in-depth know-how, Grenzebach fine-tunes calcination specifically to the nature of the raw material, the properties of the end product, and individual operating parameters such as capacity and available energy sources.