Honeycombs & Filters
Reticulated foam ceramic filters and structured honeycomb ceramics for molten metal filtration, heat recovery and process stability under extreme operating conditions.
Tags: Reticulated Foam Ceramic Filters Honeycomb Ceramics (RTO / VOC)
About this product
We supply a wide range of advanced ceramic filter and honeycomb solutions designed to deliver reliable filtration, heat recovery and process stability under extreme operating conditions. The range spans reticulated foam ceramic filters for molten metal applications in foundries and metallurgy, through to structured honeycomb ceramics engineered for regenerative thermal oxidisers (RTOs), VOC abatement and process gas regeneration. Each honeycomb regenerator bed is carefully engineered for demanding conditions — combining materials optimised for heat recovery, chemical stability and structural durability. Compared with random packings such as saddles or plates, structured honeycomb ceramics deliver maximum heat recovery with lower operating costs and superior reliability.
What that means for you
Superior thermal and chemical stability
Engineered for use above 1600°C with excellent resistance to thermal shock, oxidation and corrosion.
Enhanced process efficiency
Controlled porosity and open-cell design enable consistent metal flow and improved casting quality.
Energy recovery and emission control
Honeycomb structures maximise heat retention and support VOC destruction in regenerative thermal oxidisers (RTOs).
Reduced contamination and waste
High-purity ceramic materials prevent inclusions and rework, ensuring clean, consistent output.
Custom manufacturing
Available in a range of materials, pore sizes and geometries to match specific filtration and process needs.
Cleaner casting results, reduced scrap, better heat recovery and lower energy consumption — all achieved through durable, precisely engineered ceramic components.
Specs at a glance
| Property | Range | Notes |
|---|---|---|
| Service temperature | Above 1600°C | Material-dependent |
| Pore sizes | Configurable | Match to filtration need |
| MaterialsService temperature | ZrO2, ZTA, Al2O3, SiC, mullite, cordierite | 6+ gradesMaterial-dependent |
| Pore sizes | Match to filtration need | |
| Materials | 6+ grades |
Individual products in this range
Material options
Our filters and honeycombs are produced in a range of advanced ceramic materials, selected to match service temperature, chemistry and application:
– Zirconia — high-temperature stability for the most demanding melts
– Zirconia Toughened Alumina (ZTA) — high strength and fracture toughness
– Alumina — versatile, proven performance across applications
– Silicon Carbide — high thermal conductivity and wear resistance
– Mullite — excellent thermal shock resistance
– Cordierite — low thermal expansion for cycling environments
Where these products work
Other ceramic components
Your questions answered
What are foam ceramic filters used for?
They control molten metal flow, improve casting quality and remove impurities during filtration — used widely in foundries, iron, steel, aluminium production and low-pressure die casting.
How do honeycomb ceramics improve RTO performance?
Structured honeycomb beds deliver maximum heat recovery with lower operating costs than random packings (saddles, plates) — providing superior reliability and stable performance in regenerative thermal oxidisers and VOC abatement.
What temperatures can they withstand?
Engineered for use above 1600°C with excellent resistance to thermal shock, oxidation and corrosion — exact maximum service temperature depends on the material specified.
Are custom pore sizes and geometries available?
Yes. Pore sizes and geometries can be tailored to your specific filtration or heat recovery needs, with multiple material options to match service temperature and chemistry.
Which material should I specify for RTO regenerator beds?
It depends on operating temperature and chemistry. Zirconia and ZTA suit the most demanding melts; alumina is a versatile all-rounder; silicon carbide brings high conductivity; mullite and cordierite handle cycling environments well.
No FAQs match your search.
Datasheet, drawing or quote — pick your next step
Tell us your filtration setup or RTO conditions — our team will help you specify the right filter, honeycomb material and geometry for your process.