75X75X22 10PPI Silicon Carbide Ceramic Foam Filter

Foundrymax – Square 75×75×22mm / 10PPI Silicon Carbide Ceramic Foam Filter

• Material: Silicon Carbide (SiC), max working temp 1500°C

• Pore Density: 10 PPI (coarse pores)

• Size: 75 × 75 × 22 mm (square)

• Features: 3D reticulated structure, excellent thermal shock resistance; effectively removes slag, dross, and sand inclusions

• Applications: Gray iron, ductile iron, aluminum, copper, and other molten metal filtration – suitable for medium to larger gating systems

Foundrymax Square 75×75×22mm / 10PPI Silicon Carbide Ceramic Foam Filter

Foundrymax offers the 75×75×22mm Square Silicon Carbide (SiC) Ceramic Foam Filter – a square format filter providing significantly larger filtration area than standard 50×50 squares, making it well‑suited for foundries processing medium to larger castings across ferrous and non‑ferrous applications. The 75×75 footprint offers over double the area of a 50×50 square, delivering higher melt throughput without requiring a major redesign of the gating system.

Manufactured from high‑purity silicon carbide, this filter delivers reliable performance at operating temperatures up to 1500°C, suitable for gray iron, ductile iron, aluminum, copper, and other alloy systems. The 10 PPI coarse‑pore structure ensures excellent melt permeability with low flow resistance, effectively capturing slag, dross, and refractory particles while maintaining good pouring rates. The 22mm thickness provides robust mechanical strength, reducing the risk of breakage during handling, placement, and the pouring process.

The three‑dimensional reticulated network with over 85% open porosity ensures uniform pore distribution across the entire filter surface, delivering consistent filtration performance pour after pour. By removing non‑metallic inclusions early in the filling process, this filter helps improve casting density, reduce scrap rates, and enhance surface finish on finished components.

Key operational benefits:

• The larger square format offers significantly increased filtration area compared to 50×50 squares, suitable for larger sprue bases and higher melt volumes.

• High open porosity maintains low back‑pressure, supporting stable mold filling and reducing turbulence.

• Excellent thermal shock resistance ensures the filter remains intact despite rapid temperature changes during pouring.

• Chemically stable – the filter does not react with molten metal or alter alloy composition.

Why Foundrymax for this square filter?
As a direct manufacturer, we produce this 75×75 format in regular batches, ensuring consistent quality and dimensional accuracy. We offer the same footprint in alternative thicknesses (15mm, 20mm, 25mm) and different PPI values (10, 15, 20, 30, 40) upon request, allowing you to tailor the filter to your specific casting weight and gating design. Our technical team can advise on the optimal thickness and pore density for your alloy and production conditions.

Free samples are available for shop‑floor trials. Contact Foundrymax today to discuss your square filter requirements.