Glass quality is a key factor in efficient and profitable glass production. With VARI-DRAIN®, HORN offers an innovative drainage system designed to remove contaminated glass from the forehearth bottom, helping to prevent quality defects such as cat scratches or alumina cords.
The HORN VARI-DRAIN® system enables the controlled removal of glass enriched with contaminants such as zirconia or alumina. Thanks to PID-controlled temperature regulation, the system ensures a precise and constant glass flow, with drainage capacities ranging from 0.4 to 2.0 tonnes per day, depending on glass viscosity.
Available in directly and indirectly heated versions, VARI-DRAIN® can be adapted to different production requirements. Additional cooling air distribution allows the glass flow to be stopped when necessary.
Key Features
- Controlled drainage of contaminated glass from the forehearth bottom
- Improved glass quality by reducing defects
- Precise and constant glass flow through PID-controlled temperature regulation
- Drainage capacity of 0.4–2.0 tonnes per day, depending on glass viscosity
- Available with direct or indirect electrical heating
- Suitable for container, tableware, cosmetic and lighting glass in standard colours
By effectively removing contaminated glass, HORN VARI-DRAIN® contributes to improved product quality and increased profitability in glass production.
Visit HORN at glasstec 2026 in Hall 13, Stand C32, and discover how HORN VARI-DRAIN® can help optimise glass quality in your production process.
