40x40x22 10 PPI Square SiC Ceramic Foam Filters For Bronze Foundry

Foundrymax – Square 40×40×22mm / 10PPI Silicon Carbide Ceramic Foam Filter

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

• Pore Density: 10 PPI (coarse pores)

• Size: 40 × 40 × 22

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

• Applications: Small castings, precision foundry work, investment casting, and gating systems with limited space

• Manufacturer Advantage: Foundrymax – in-house production, standard small sizes always in stock, custom thickness/PPI available, factory pricing

Foundrymax Small Square 40×40×22mm / 10PPI Silicon Carbide Ceramic Foam Filter

Foundrymax presents the 40×40×22mm 10PPI Silicon Carbide (SiC) Ceramic Foam Filter – a small‑format square filter engineered specifically for foundries running smaller castings, precision components, or gating systems with confined space. The 22mm thickness provides enhanced mechanical strength and thermal shock resistance, making it robust enough to handle molten iron (gray and ductile), aluminum, and copper alloys at temperatures up to 1500°C.

The 10 PPI coarse‑pore structure ensures excellent melt permeability with minimal flow resistance – a critical advantage when working with small sprue bases or narrow runners where maintaining consistent flow is essential. The three‑dimensional reticulated network captures coarse slag, dross, and refractory particles effectively, delivering cleaner metal to the mold cavity.

Key operational benefits:

• The small square footprint fits perfectly into compact gating systems – ideal for smaller sprue bases, filter boxes, or multi‑cavity molds where space is at a premium.

• Effectively reduces inclusions and gas defects, improving casting density and surface finish for small‑to‑medium precision components.

• High porosity (>85%) maintains low back‑pressure, supporting smooth mold filling even in gravity and low‑pressure casting processes.

Why Foundrymax for this small square size?
As a direct manufacturer, we produce this popular small format in large batches, ensuring consistent pore uniformity and dimensional accuracy. We also offer the same 40×40 footprint in different thicknesses (15mm, 22mm, 25mm) and alternative PPI values (15, 20, 30) upon request. Our technical team can help determine whether the 40×40 square or a round disc better suits your gating design and casting weight.

Free samples are available for shop‑floor trials. Contact Foundrymax to discuss your small‑format filtration needs.