Launder Pre-Heaters

Covered launders and heated launder covers provide considerable energy savings and are safe to work around. The Rex Materials’ heated cover system provides the cast house with a means to accurately pre-heat the launder system to virtually “steady state”
condition.

The refractory is preheated to the target metal temperature to assure optimum starting conditions and negligible temperature drop from the furnace to the casting center.

The launder heater design uses a premium wound element embedded in a ceramic fiber Pyrolite® module retained in a steel shell.

The Pyrolite® material is extremely buoyant in molten aluminum, eliminating the chance of inclusions in the molten metal.

Covered launders provide significant energy savings and are safer to work around. Rex Materials’ covers are hinged for easy access. They use a Pyrolite® ceramic fiber element module retained in a steel shell. Pyrolite is extremely buoyant in molten aluminum.

All cover assemblies are provided with a 2000˚F (1090˚C) woven ceramic gasket where they rest on the top of the launder. This is to minimize both heat loss and potential cover gas outflow.

Rex Materials supplies a trough heater system that is incorporated into the launder covers. The covers are designed to heat the surface of the refractory to the target metal temperature of 1300˚F (700˚C) to ensure optimum starting conditions. Rex Materials’ heaters will, when supplied with the required power input, preheat the refractory
to the target temperature within 1 hour.

Optional Equipment Includes:

• Stainless Steel Housings

• Lift-Off Feature
• Gas Distribution Systems

• Auto-Off Switch
• Process Control

• Custom Design

Filter Bowl Pre-Heating System also available

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