Water-cooled copper launders use the freeze-lining principle to reduce component wear. Lower wear means longer launder life, cutting long-term maintenance costs and downtime production losses. Typical industrial water-cooled launder designs present inherent safety risks associated with the positioning of water-cooling passages under the runner, which could result in explosions when molten matte or metal burn-throughs occur. In addition, water-cooled launders have to be scrapped and replaced with new launder segments because the launders cannot be repaired once the cooling water channels are damaged.

Tenova Pyromet uniquely innovative launder design eliminates the explosion hazard normally associated with water-cooled copper launders as it does not have any water channels under the runner, while still effectively removing the energy from the runner through the sidewall cooling channels. Damaged launder segments can be repaired and returned to service as the cooling water channel integrity is maintained.