ELIMINATE Metal CASTING DEFECTS & BOOST YIELDS WITH PRECISION Industrial CERAMIC FILTER Manufacturer 

Professional Industrial Filters Manufacturer  20 Years, Serving 50+ Countries

Intercept 10-50μm molten metal inclusions, optimize metal flow, improve casting quality, and slash production costs with our advanced ceramic foam filters. Solutions for iron, aluminum, copper, and steel metal casting. Inquire now to customize solutions for your unique needs.

Industrial Filter Types for Global supplier

FM-01 Silicon Carbide Filter

Filters for Iron Castings: Made of high-purity silicon carbide fine powder as raw material, it can withstand high temperatures up to 1500℃. It is used to filter and purify ductile iron, gray cast iron, vermicular cast iron and some alloy cast iron and non-ferrous alloys such as copper and cast aluminum.

FM-03 Zirconia Filter

Filters for Steel Castings: This porous ceramic product is made of imported stabilized zirconium oxide, which has extremely high thermal stability and can withstand high temperatures up to 1700°C. Therefore, it is particularly suitable for filtering precision castings of high melting point metals such as carbon steel, low alloy steel, and stainless steel.

FM-04 Alumina Filter

Filters for Aluminum Castings: Filter micron-level inclusions in aluminum liquid, making the aluminum liquid flow smoothly, which is conducive to filling the mold, improving the quality and yield rate of aluminum alloy castings, and is widely used in the production of aluminum alloy castings such as automobiles, aerospace, etc.

FM-10 Copper Filter

The porous ceramic filter is specially designed for copper and copper alloy casting. It has excellent thermal conductivity and affinity with copper melt, and can effectively remove impurities in copper melt without affecting the alloy composition. Widely used in the production of precision copper castings and electrical components.

FM-05 Alumina Filters

Made of high-purity alumina ceramic material, it can effectively remove non-metallic inclusions in aluminum melts. It is widely used in aluminum casting workshops such as aluminum ingots, aluminum bars, aluminum plates, aluminum strips, aluminum foils, and aluminum materials. It is used in conjunction with the filter box system to achieve continuous production.

FM-06 Ceramic Honeycomb

The honeycomb structure straight channel filter has stable size and shape. It is made of cordierite and mullite refractory materials. The precision mold molding brings strong product consistency and quality stability. The refractory ceramic filter is mainly used in gray iron, ductile iron, aluminum alloy, etc. It has strong adhesion to impurities in molten iron.

FM-08 Magnesia Filter

The high-performance filtration device is specially designed for the purification of magnesium alloy melts. It is made of high-purity magnesium oxide powder (MgO ≥ 95%). Through its unique three-dimensional mesh porous structure, it can effectively intercept oxides, slag, and non-metallic inclusions in the magnesium melt.

FM-07 Fiberglass Mesh Filter

Made of high-silica glass fiber cloth with SiO₂ content ≥96% and treated with a refractory coating. It is mainly used for the filtration and purification of molten iron, molten aluminum, molten steel, and copper solutions. We can design and meet the overall filtration solutions and series of fiber glass filter products.

FM-09 SIC Filters

Using high-purity silicon carbide particles as raw materials, it has excellent strength, chemical stability and long service life. It is a high-temperature metal filtration solution designed for aluminum and aluminum alloy casting processes, suitable for gravity casting, die casting, squeeze casting and sand casting.

Whether you’re in manufacturing automotive, aerospace, wind power, or custom production, we have the right industrial filter solutions tailored for your needs.

Ready to optimize your foundry process?

Casting Processes

Filter Application: Foundry Industry

Industrial filters for foundry are widely used in various casting processes due to their excellent high-temperature resistance, filtering effect, and strong adaptability, especially in the production of castings with high precision and high-quality requirements.

Sand Casting

In the pouring system of sand casting, ceramic filters and mesh filters are often used, placed in the sprue or cross runner position, to filter non-metallic inclusions in the molten metal.

Lost Foam Casting

Ceramic filters can be used in the pouring system of lost foam casting to prevent the residues produced by the gasification of the foam model from entering the casting.

Investment Casting

In investment casting, foundry filters are usually installed at the front end of the pouring cup or the pouring system for metal liquid purification of high-precision castings.

Gravity Casting

In metal mold casting, the porous ceramic filter can be installed in the gate or runner, suitable for the casting of aluminum alloys, copper alloys, etc.

Centrifugal Casting

In the centrifugal casting process, ceramic filters can be used to purify the molten metal before entering the mold to reduce the impact of impurities on the casting.

Die Casting

Although high-pressure casting process usually adopts high-speed filling, foam ceramic filters can still be used for metal liquid pretreatment in some special cases.

Leading Filter Manufacturer

In automotive and aerospace industries, even tiny casting flaws can cause major problems—weak parts, porosity defects, and costly reputation damage. As a leading industrial filter manufacturer, FoundryMax provide reliable filtration solutions trusted by top foundries worldwide. Their strict quality control ensures every filter performs flawlessly, helping customers achieve “zero-defect casting.”

Trusted Expertise

A top ceramic filter manufacturer with ISO 9001:2015 certification, serving elite foundries in 35 countries.

Strict Quality Control

Every filter manufacturing process—material selection, sintering, pore sizing, and testing—is optimized for reliability.

Guaranteed Performance

Filters work consistently in harsh conditions, delivering clean, defect-free castings.

Years of Expertise

Annual Output

Patents

  • More than 1 billion ceramic filters have been produced since founding
  • Serving more than 1,200 casting foundries in 35 countries around the world
  • Complete 5 generations of product iterations and upgrades
  • Establish a full-process quality traceability system
  • Fully automated production lines
  • Daily production capacity of more than 200,000 pieces
  • Mature flexible production system
  • Equipped with imported testing equipment, 100% full inspection to ensure zero defects before leaving the factory

Our engineering team has achieved breakthroughs in filter technology by targeting the core pain points of the foundry industry:

  • Revolutionary innovation in production process
  • Breakthrough control of dimensional accuracy
  • Continuous leadership in new product development

Our Services

Pre-Sales

Precision Filtration Starts with Deep Casting Analysis
We analyze your entire casting process, from alloy selection to mold design. Then propose top-notch filtration solutions for your conditions.
Alloy-Specific Filter Optimization
We adjust our filter material formulas based on your alloy’s composition. Our zirconia filters for steel casting, for instance, improve filtration efficiency by up to 20% compared to standard sic filters.
Controlled Porosity for Optimized Filtration
Our ceramic foam filters feature precisely controlled pore sizes (ranging from 10 PPI to 60 PPI) to efficiently remove inclusions while maintaining metal flow rates. This reduces casting defects by an average of 15%.
Seamless Integration with Your Gating System
We offer a wide range of standard sizes (40mm – 500mm) and custom filter shapes. This integration reduces turbulence and ensures smooth metal flow, cutting down on scrap rates by up to 10%.
Data-Driven Iterative Filter Design
Our filter design process includes metallographic analysis and performance testing at each stage. By integrating customer feedback, we are improving filter life by 25% each year.
Complex Geometries for Optimized Casting
Various filter models allow us to manufacture filters in any shape to fit your complex gating systems. Our filters reduce turbulence by 15%, thus improve casting quality

In-Sales

Reliable and Efficient Delivery
From filter sample to order, we have professional personnel to serve you throughout the entire process. We are committed to delivering products to customers in the highest quality, safest, most economical and fastest way.
Quality Control Throughout Entire Production Process
Under the ISO9001 quality management system, we monitor key production links in real time throughout the entire process to ensure that quality and quantity are met to meet your casting production requirements.
Stable Foundry Filter Delivery Time
We prioritize production based on your casting production needs, ensuring that our foundry filters will not delay your casting production process. Typically, small sample orders are delivered within 5 working days, large orders within 15 working days, and custom products within 25 working days.
Cost-Effective Logistics Solutions
With over 20 years of experience in exporting refractory foundry materials, we provide and implement the most convenient and economical shipping solutions for our customers. We have established long-term partnerships with several well-known international logistics companies to ensure safe and reliable transportation.
Proactive Shipping Notifications
Track the status of your shipment in real time and receive prompt notifications at every stage of delivery. You can always check the status of your filter using the tracking number we provide, ensuring your casting process is not delayed.
Multi-layer Protective Packaging Prevents Damage
Customized to your specific shipping needs, we ensure your ceramic filters arrive safely. We use multi-layer protective packaging, including shock-absorbing foam, waterproof film, and sturdy cartons, to minimize damage during shipping.

After-Sales

12-Hour Fast Response and Detailed Technical Support

Our engineering team will answer your questions about foundry filters within 12 hours. We promise to provide an initial solution within 2 hours of receiving customer feedback and detailed technical support within 12 hours.

Proactive Follow-up on Filter Usage

We track filter usage and provide improvement solutions based on your questions to ensure that the filtration effect continues to meet your casting production needs. We conduct customer return visits every quarter to promptly understand customer needs and potential problems.

Professional Technical Guidance

For problems and difficulties encountered during the use of industrial filters, we can provide customers with comprehensive technical service support, including on-site guidance, remote assistance, and video tutorials.

Guaranteed Technical Consultation

We offer consulting services for other issues encountered during the casting process. Our team of experienced casting experts can provide comprehensive technical advice and solutions, including alloy selection and process optimization.

Iterative Filtration Process Optimization

We provide customized recommendations based on your evolving production needs to continuously optimize your filtration performance. We can customize filtration solutions based on your production data and experimental results, and provide recommendations for continuous improvement.

Continuously Updated Documentation

Filters and other refractory ceramic casting material resources are updated promptly to reflect any process changes or improvements. Our online knowledge base provides the latest product information, technical documentation, and FAQs for your convenience.

industrial filter

Why Choose us?

We have been focusing on the export of foundry consumables for more than 20 years, and our global customers have witnessed our professionalism and quality.

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Expertise and Knowledge

Decades of expertise in filtration tech & refractory casting materials. Our metallurgists average 18+ years’ casting experience, blending hands-on skills with academic rigor. We pinpoint and solve inclusion root causes, not just symptoms. Tap into knowledge from global casting successes.

Innovation and Technology Advantages

Dedicated R&D team goes beyond standard filtration products, forging ahead with top university research partnerships. Invest in cutting-edge tech+tomorrow’s breakthroughs in filtration breakthroughs, that enhance foundtry factory high eficiency!

Custom Solutions for Your Specific Needs

Tailored filtration starts by diving deep to analysize specifics and goals. We consider metal composition & quality aims, and our engineers craft solutions: ceramic formulations, filter dimensions, pore configurations & mounting tips.

Quality Assurance and Reliability

From raw material selection to final inspection, quality is infused!. Our multi-stage quality system goes beyond that, and gives 100% traceability. Validations from top automotive & aerospace firms back the high standards that we provide.

Partnership Beyond Products

Our filter support never ends from any issues. You get foundry engineers that are accessible 24/7. Our customer portal delivers tech docs with training guides. That’s why we have a 70% customer retention rate within 15 years of relationship!

Value Beyond Price

Our industrial ceramic filters may not be the cheapest, but provides low cost with high casting quality. Value that gets documented with low scrap, rework, tool life, and high metal casting quality.

Support Fast Industrial Filter Sampling for Your Casting Production Testing

Small orders are delivered within 5 working days, large orders are delivered within 15 working days, and customized products are delivered within less than 25 working days

R&D Capabilities

Innovation

Driving innovation in foam ceramic filtration technology

We invest 8% of our revenue each year in R&D, focusing on next-generation industrial ceramic materials and filter designs to improve casting results.

By investing in cutting-edge technologies and promoting collaboration among experts, we continue to push the boundaries of industrial ceramic filtration, provide innovative solutions, and are certified as an upgraded R&D institution and a technology-based innovative enterprise.

Collaborative Expertise

Teams of university industrial ceramic engineers and our company work together with metallurgical experts to jointly address emerging casting challenges and promote innovation in filtration technology.

Advanced Coating Technology

Using advanced coating technology to enhance metal/ceramic interaction, improve filter performance and extend service life.

Intellectual Property Portfolio

We have 8 patents covering ceramic formulas and manufacturing processes, and another 5 patents are pending for advanced industrial filtration technology.

Predictive Simulation Software

Use simulation software to predict filtration performance in specific applications to provide customized solutions and optimize casting results.

Invention Patents

Deep Experience

Country of sale

Customers

Trusted by

Top Industry Leaders

Trusted by 500+ Global Filter Distributors

With over 20 years serving in the casting industry across 50 countries, our filters process over 500,000 tons of molten metal annually for customers ranging from boutique foundries to global automotive suppliers. Our customer base ranges from boutique automotive foundries to global foundry material suppliers. Our client retention rate exceeds 70%, with an average relationship duration of 15 years. Industry recognition includes Technology-Based Enterprise, Innovative Enterprise, Quality Management System Certification, and preferred supplier status with the top five automotive manufacturers. Our expertise spans a wide range of foundry applications, from precision investment casting to high-volume automotive production, millions of dollars in annual savings for our clients. Contact us today to learn more and receive a customized solution!

Certified Filter Manufacturer

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Double Guarantee of Quality and Responsibility

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Actively Implement Environmental Protection Commitments

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Ensure Each Test Data is Authentic and Reliable

Discover Your Optimal Filtration Solution

Request a free consultation with our filtration specialists to identify the ideal industrial filter technology.

CONTACT US

Let's Connect

Our Engineers Will Analyze Your Needs & Offer the Perfect Filter Design – Contact Us Today.

Address

Guanting Industrial Park, Cangzhou City,
Hebei Province, China