23″ x 23″ x 2″ Ceramic Foam Filter Plate – 40/50PPI for Aluminium Casting

Foundrymax – 23″ × 23″ × 2″ Ceramic Foam Filter Plate – 40/50PPI Options

• Material: Alumina (Al₂O₃) | Max Temp: 1100–1200°C

• Pore Density Options: 40 PPI or 50 PPI

• Dimensions: 23″ × 23″ × 2″ (584 mm × 584 mm × 50 mm)

• Edge Sealing: Available with seal gasket (fibre paper, fibre cotton, or expandable gasket options)

• Function: Removes micron‑level inclusions, oxides, and slag from molten aluminium

Foundrymax 23″ × 23″ × 2″ Ceramic Foam Filter Plate – 40/50PPI Fine-Pore Options

Foundrymax offers the 23″ × 23″ × 2″ (584×584×50mm) ceramic foam filter plate in 40 PPI and 50 PPI pore densities, a large‑format fine‑filtration solution for aluminium cast houses and continuous casting operations producing high‑quality aluminium products.

Why 23″ × 23″?

The 23″ × 23″ format (584×584mm) is a standard large‑plate size widely used in the aluminium industry. It is also available as 584×584×50mm in metric denominations, with other standard sizes including 7″, 9″, 12″, 15″, 17″, 20″, 23″, 26″, etc. It provides substantial filtration area for high‑throughput production, making it suitable for:

• Aluminium ingot, billet, and slab continuous casting

• Aluminium sheet, plate, and foil manufacturing

• High‑quality aluminium profiles and extrusions

• Automotive and aerospace aluminium components

Which PPI Should You Choose?

• 40 PPI (~0.6–0.8 mm pores) – Captures micron‑level inclusions while maintaining good flow characteristics. Recommended for high‑quality sheet, plate, foil, and applications requiring superior surface quality.

• 50 PPI (~0.5–0.6 mm pores) – Finer pore structure for enhanced melt cleanliness. Recommended for critical applications such as aviation‑grade aluminium, high‑performance automotive components, and products with tight mechanical property requirements.

How It Works

Installed in a filter box between the furnace and casting machine, the plate allows molten aluminium to pass through its open‑cell reticulated structure (porosity 78–90%). Non‑metallic inclusions — oxides, dross, and refractory particles — are captured through mechanical sieving and surface adhesion. The three‑dimensional network with connected pores ensures:

• Effective removal of micron‑level impurities

• Conversion of turbulent flow into steady laminar flow

• Cleaner metal entering the casting process

The result: fewer inclusion‑related defects, improved surface quality, higher processing speeds, and lower scrap rates.

Edge Sealing

Edge seal gaskets are available to ensure a tight fit within the filter box and prevent melt bypass. Options include fibre paper, fibre cotton, and expanded gaskets.

Why Foundrymax?

As a direct manufacturer, we produce this 23″ × 23″ × 2″ size with consistent quality. Available in 40PPI and 50PPI as standard, with other pore densities (10–60 PPI) available upon request.

Contact Foundrymax to discuss your aluminium filtration needs or request a sample.