Silicon Ceramic Foam Filter high quality

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Silicon Ceramic Foam Filter

Name: China Silicon Ceramic Foam Filter Manufacturers, Suppliers, Factory - Made in China - Dingtai Yinrui
Brand: Dingtai
SKU: 299447067

Silicon Carbide (SiC) Ceramic Foam Filter for Foundry Applications. This high-performance filter is engineered to enhance the purity and mechanical properties of castings. Manufactured from high-purity silicon carbide, it features a unique three-dimensional network structure that effectively traps non-metallic inclusions (such as slag and oxides) in molten metal, reduces turbulence, and promotes a stable laminar flow during pouring.

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Product Overview

The product, specified as a rectangle with a length of 200mm, width of 100mm, thickness of 22mm, and a pore density of 20 PPI, is suitable for ductile iron, gray iron, and other casting processes. It withstands high temperatures up to 1550℃, while maintaining excellent structural stability and thermal shock resistance.

Specification

Material: High-Purity Silicon Carbide (SiC)

Shape & Length & Width: rectangle, Length 200mm (±0.8mm), Width 100mm((±0.8mm), Thickness 22mm (±1.0mm)

Pore Density (PPI): 20 PPI

Operating Temperature ≤ 1550 °C

Open Porosity: 80% - 90%

Applicable Metals: Ductile Iron, Gray Iron, Malleable Iron, etc.

Core Advantages

High Filtration Efficiency

The 20 PPI pore design is optimized for cast iron, effectively filtering inclusions ≥0.5mm and achieving an inclusion removal rate of over 90%, which improves the surface finish and internal density of castings. Its 3D open-pore structure provides both adsorption and mechanical barrier effects.

Exceptional High-Temperature Performance

The silicon carbide material ensures no phase transitions at 1550°C, offering superior resistance to thermal shock and preventing cracking or deformation during use.

Precise Dimensions and Strength

Utilizing a pre-cut and then coating process, where the foam carrier is first precisely cut to the required customer dimensions before the slurry coating and sintering. This fundamental process ensures excellent dimensional consistency for each filter, preventing installation mismatches or metal leakage. Dimensional tolerances are strictly controlled within ±0.8mm for diameter and ±1.0mm for thickness, ensuring a perfect fit in the gating system. The room temperature compressive strength is ≥1.0MPa, meeting the demands of automated foundry production lines.

Economic Benefits

Contributes to a significant reduction in casting rejection rates and improved yield, offering substantial cost savings for customers.

Type Items	Materials	Compressive Strength (MPa)	Porosity (%)	Bulk Density (g/cm³)	Applied Temp (≤ ℃)
DT-2	SIC	≥1.0	80--90	0.40-0.55	1550

Dimensions

Regular Size (mm)	Area (cm²)	Filtration Capacity Grey Iron-kgs	Filtration Capacity Ductile Iron-kgs	Pore Size (ppi)
Filtration capacity (kg/cm²)		4	1.5	10, 20, 30
40x40x22	16	64	24	10, 20, 30
50x50x22	25	100	38	10, 20, 30
50x75x22	37.5	150	56	10, 20, 30
50x100x22	50	200	75	10, 20, 30
60x60x22	36	144	54	10, 20, 30
75x75x22	56.25	225	84	10, 20, 30
75x100x22	75	300	113	10, 20, 30
100x100x22	100	400	150	10, 20, 30
D40x22	12.56	50	19	10, 20, 30
D50x22	19.625	78	29	10, 20, 30
D60x22	28.26	113	42	10, 20, 30
D70x22	38.465	154	58	10, 20, 30
D90x22	63.585	254	95	10, 20, 30
D100x22	78.5	314	118	10, 20, 30
……
*Note: Length (diameter) width * height = (35-300) * (35-300) * (11-50) mm with round, square and rectangle shape are available. Size tolerance: -1.5~0mm (size under 100mm); -2~0mm (size above 100mm) Pore size: 10/15/20/25/30 PPI Pore Tolerance: ± 2PPI FLOW CAPACITY:** For Gray Iron: Max. filtration weight can be calculated based on Filter area (cm²) x 4 For Ductile Iron: Max. filtration weight can be calculated based on Filter area (cm²) x 2

Production Workflow Chart

Application & Usage Guidelines

Suitable Processes

Sand casting, lost foam casting, vertical gating systems.

Installation Location

Pouring cup, bottom of the sprue, or runner. Ensure the filter fits snugly within the gating channel.

Usage Recommendations

Secure the filter properly in the mold. Avoid direct impact of the metal stream onto the filter (recommended drop height <320mm). The pouring temperature should not exceed 1550°C.

After Sales Service

Policy Item	Specific Commitment
Quality Assurance	Products comply with relevant enterprise standards and technical agreements. A quality assurance period of 12 months is provided from the date of delivery.
Return & Exchange Policy	Within the warranty period, if quality problems (such as cracking, insufficient strength, non-compliant effective pore size, etc.) are confirmed, we commit to providing free return or exchange services.
After-Sales Support	Product usage consultation services are available. As the product is a one-time consumable, maintenance/repair services are not provided.
Disclaimer	We are not liable for returns or exchanges resulting from improper customer use, storage, or installation (e.g., severe impact, installation mismatch leading to sand wash, etc.).

Company Profile

20Years of experience
in one-stop service

Shanxi Dingtai Yinrui Filter Manufacturing Co., Ltd. is a high-tech enterprise specializing in the R&D and production of foundry filters for over 20 years. We are committed to providing high-performance filtration solutions for our global clients.

10000+ m²

Company Covers

100+

professional staff

15K

happy clients

500+

Long-term Cooperational Partner

Quality Assurance & Customization

• OEM/ODM capabilities
• Process Assurance: Advanced pre-cut and coating technology, combined with automated production control, ensures stable product dimensions and performance.
• Customization Capability: Supports non-standard sizes (Diameter 30-300mm), pore densities (10-30 PPI), and shapes (square, rectangular) to flexibly meet customer requirements