Since the metal inlet on the pumps is on the bottom, it is very easy to apply filtration. The filter of choice is placed on top of the ceramic float. Then the preheated pump is lowered onto the filter and float, forcing both below the bath surface. The buoyancy of the flotation disk forces the filter against the bottom of the pump, and the guides on the float keep the filter and float from sliding out from under the pump. All of the metal entering the pump is filtered, ensuring delivery of the highest quality metal to your castings. Flotation disks and filters need to be preheated before use to remove all moisture.
Metal filtration offers many benefits to the foundry including:
- Reduction in oxide inclusions in the casting
- Reduced scrap rate
- Reduction in finishing tool wear
- Improved metal fluidity and castability
- Improved surface finish
Expected Life: Nominal of 100,000 pounds of aluminum