Dia 50X22 10 PPI Round Silicon Carbide Ceramic Foam Filter

Foundrymax – Round 50mm Dia × 22mm Thick / 10PPI Silicon Carbide Ceramic Foam Filter

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

• Pore Density: 10 PPI (coarse pores)

• Size: 50mm diameter × 22mm thickness

• Shape: Round disc – suitable for sprue bases, pouring basins, and runner systems

• Features: 3D reticulated structure, porosity >85%, excellent thermal shock resistance; effectively removes slag, dross, and sand inclusions

• Applications: Gray iron, ductile iron, aluminum, copper, and other molten metal filtration

• Manufacturer Advantage: Foundrymax – in-house production, standard round sizes in stock, custom diameters/thicknesses/PPI available, factory pricing

Foundrymax Round 50mm Dia × 22mm Thick / 10PPI Silicon Carbide Ceramic Foam Filter

Foundrymax offers the 50mm diameter × 22mm thickness Round Silicon Carbide (SiC) Ceramic Foam Filter, a versatile disc filter suitable for a wide range of molten metal filtration applications across ferrous and non‑ferrous foundries. The 50mm round format provides a practical cross‑section that fits comfortably into sprue bases, pouring basins, and runner systems, making it a popular choice for many standard gating layouts.

Manufactured from high‑purity silicon carbide, this filter withstands operating temperatures up to 1500°C, ensuring reliable performance across gray iron, ductile iron, aluminum, copper, and other alloy systems. The 10 PPI coarse‑pore structure (average pore size ~2.5 mm) delivers high melt permeability with minimal flow resistance, enabling foundries to maintain good pouring rates while effectively capturing slag, dross, and refractory particles. The 22mm thickness provides robust mechanical strength, reducing the risk of breakage during handling, placement, and the pouring process.

The three‑dimensional reticulated network ensures uniform pore distribution across the entire disc, delivering consistent filtration efficiency 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 round shape allows direct placement at the base of pouring cups or sprue wells, capturing contaminants at the earliest entry point into the gating system.

• High open porosity (>85%) 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 round filter?
As a direct manufacturer, we produce this 50mm diameter size in regular batches, ensuring consistent quality and dimensional accuracy. We offer the same diameter in alternative thicknesses (15mm, 20mm, 25mm) and different PPI values (15, 20, 30) 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 round filter requirements.