Ceramic Foam Filter Box

Ceramic Foam Filter Box
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The ceramic foam filter box is designed for in-line filtration of molten aluminum in aluminum melting and casting lines. Installed between the holding furnace and casting machine, the filter box removes non-metallic inclusions and other impurities from the melt to improve molten aluminum cleanliness and support more stable casting quality.

The system supports multiple specifications and structural configurations, and is applicable to aluminum melting and casting production lines with different production capacities and workshop layouts.

Working Principle

Molten aluminum passes through ceramic foam filter plates during transfer from the holding furnace to the casting machine. The ceramic foam filters trap and remove impurities from the melt, including:

  • Oxides
  • Slag particles
  • Non-metallic inclusions
  • Fine particles ≥10 μm

The filtration process improves molten aluminum cleanliness and supports more consistent casting quality.

Ceramic Foam Filter Box Available Configurations

Multiple sizes and configurations are available to suit different production capacities and plant layouts, including 15", 17", 20", and 23" single-stage and dual-stage filtration systems.

Single-Stage Ceramic Foam Filter Box Dual-Stage Ceramic Foam Filter Box
Features Single ceramic foam filter plate Simple structure and easy installation Lower initial investment Easy maintenance Suitable for conventional molten aluminum filtration Features Two-stage filtration with two ceramic foam filter plates Higher filtration efficiency More thorough impurity removal More stable molten aluminum quality Improved product consistency
Suitable For Small to medium-sized aluminum ingot casting lines Cost-sensitive projects Suitable For High-quality aluminum ingot production lines Large casting plants Applications with stricter quality requirements
Huitai Technology is a manufacturer specializing in equipment for aluminum melting, casting and billet-processing operations. With engineering and manufacturing capabilities covering equipment design, fabrication, machining, welding, assembly and control-system integration, Huitai focuses on customized equipment and line configurations rather than one-size-fits-all solutions.
Equipment is configured around the customer’s production requirements, plant layout and existing line, with installation, commissioning and technical support provided according to the project scope.
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