Grenzebach’s latest generation of annealing lehrs sets new benchmarks in cooling performance and energy efficiency. With its state-of-the-art design it is built to meet the demands of modern float glass production.

Five Key Advantages at a Glance:

1. Up to 50- 70% Lower Energy Consumption (due to lehr configuration)
   The lehr’s energy savings result from highly efficient cooling, optimized insulation and minimized heat loss. These features also significantly reduce CO₂ emissions.

2. Precise Process Control
   Individually controllable heating and cooling sections, combined with shorter module lengths, enable smaller control zones for more accurate temperature regulation. This ensures faster reaction times to process changes and improved process control.

3. Flexible Annealing Point & Optimized Tension Distribution
   Adapted temperature profiles allow for a flexible annealing point and improved stress control across the glass ribbon. In the Grenzebach annealing lehrs we also blow the cooling air in the radiation area through a battery of one-piece heat exchangers, the design of which prevents contamination of the glass

4. Minimized Risk of Scratches
   Segmented drive trains with controlled servo motors compensate for glass contraction during cooling. This significantly reduces surface stress and the risk of scratches, especially with thinner or high-value glass.

5. Optimized Operation and Maintenance
   The drive system is designed for a simplified maintenance of the lehr. Innovative protective covers enhance personnel safety, and supports smooth day-to-day handling. Additionally, noise levels are significantly reduced, improving the overall working environment.