Ceramic honeycomb is one of the key component of High Temperature Air Combustion (HTAC) technology, which delivers both energy savings and environmental benefits. Compared with conventional combustion technology, HTAC saves 20–50% fuel, reduces oxidation loss by over 20%, cuts NOx emissions by over 40%, and greatly improves production efficiency. Honeycomb offer a large heat exchange area per unit volume, fast heat transfer, low airflow resistance, shallow heat penetration depth, and high thermal efficiency. REBO has provided products and solutions to over 200 customers.
Types of Ceramic Honeycomb
The main function of honeycomb ceramic is to serve as a heat storage medium in high-temperature industrial furnaces and waste gas treatment systems. Through their structured honeycomb channels, they achieve efficient heat storage and recovery during alternating heating and cooling cycles. This greatly reduces energy consumption and improves overall thermal efficiency in continuous industrial operations.
Honeycomb molecular sieve include corundum mullite (common types), high-alumina, and cordierite materials. REBO can also provide other materials according to customer needs. Examples are mullite, zirconia, and corundum materials.
| Property | Corundum Mullite | High Alumina | Cordierite |
|---|---|---|---|
| Max Service Temperature | ≥1550℃ | ≈1350℃-1400℃ | ≈1200℃-1300℃ |
| Thermal Expansion Coefficient | High (≈5.5-6.5×10⁻⁶/K) | Medium (≈4.5-5.5×10⁻⁶/K) | Very Low (≈1.5-2.5×10⁻⁶/K) |
| Thermal Shock Resistance | Good (micro-cracks under severe cycling) | Good | Excellent (hard to crack) |
| Compressive Strength | Very High (≥20-30 MPa) | High (≥15-20 MPa) | Moderate (≥10-15 MPa) |
| Slag / Corrosion Resistance | Strong | Medium | Poor |
| Main Applications | Steel reheating furnaces, soaking pits, glass furnace regenerators | Medium-high temp industrial furnaces, forging furnaces | RTO / RCO systems, medium-low temp kilns |
| Price | High | Moderate | Relatively Low |
Parameter of Ceramic Honeycomb Filter
The following parameters are for corundum mullite, which is the most widely used and commonly specified material for honeycomb ceramic in high-temperature industrial applications. Specifications for other materials, such as high alumina and cordierite, are also available upon request to meet different thermal and chemical requirements.
| Material | Corundum Mullite |
|---|---|
| Al₂O₃ | 65-70% |
| SiO₂ | 25-30% |
| Fe₂O₃ | <1.5% |
| Bulk Density (kg/m³) | 700-1150 |
| Thermal Expansion Coefficient (×10⁻⁶/°C) | ≤5.5 |
| Thermal Conductivity (W/m·K) | ≥1.0 |
| Maximum Working Temperature (°C) | 1550 |
| Compressive Strength– Direction A– Direction B | >26.0 MPa>10.5 MPa |
Sizes & Shapes of Honeycomb Ceramic Filter
Standard Sizes
For regenerator, REBO offers the following standard sizes to meet common application requirements across different furnace types and waste gas treatment systems. These standard dimensions are designed to cover the most frequently requested specifications, helping customers shorten lead times and simplify procurement.
In addition, REBO can customize production according to customer requirements, including special dimensions, channel configurations, and material grades for specific projects. This flexibility ensures that each customer receives a solution tailored to their actual operating conditions and installation space.
| Length (mm) | Width (mm) | Height (mm) |
|---|---|---|
| 100 | 100 | 100 |
| 100 | 150 | 150 |
| 150 | 100 | 100 |
| 150 | 150 | 150 |
| 150 | 150 | 300 |
Hole Shapes and End Face Shapes
Hole Shapes: Square, rectangular, regular hexagonal, round, triangular, etc.
- Square: Provide a balanced combination of heat storage capacity and airflow, suitable for general-purpose applications.
- Rectangular: Offer flexible channel geometry for specific flow and layout requirements.
- Regular Hexagonal: Deliver a high surface area-to-volume ratio, maximizing heat transfer efficiency.
- Round: Ensure smooth airflow with low resistance, ideal for high-flow conditions.
- Triangular: Increase structural density and surface contact for compact installations.
End Face Shapes: Flat, inclined, single-slot, double-slot
- Flat: Standard flat end face for straightforward stacking and uniform sealing.
- Inclined: Angled end face to fit specific furnace layouts and improve flow distribution.
- Single-slot: Feature one slot for positioning, alignment, or interlocking during installation.
- Double-slot: Provide two slots for enhanced connection strength and precise assembly in larger structures.
RTO Dedicated
Hole Count: Please consult REBO for cell count, as the appropriate cell density depends on your specific application requirements and operating conditions. The following lists the standard cell counts for the 150×150×300mm (5.9×5.9×11.81 in) size, which is one of our most commonly requested dimensions.
| Hole Count Type | 13×13 | 20×20 | 25×25 | 32×32 | 40×40 | 43×43 | 50×50 | 60×60 |
|---|
Ceramic Honeycomb Export Packaging
- Export pallet/wooden crate packaging is used to ensure safe transport and handling;
- Each layer of heat storage media is separated to prevent movement and damage during shipping;
- Cardboard/plywood is placed on all four sides for additional protection against impact and moisture;
- Shipping marks are applied on all four sides for easy identification and correct handling throughout the logistics process.
Serving 20+ Countries Globally
REBO gegenerator have been exported to over 20 countries, including Italy, Korea, and Switzerland. They are used in steel reheating furnaces, glass furnace regenerators, and RTO waste gas treatment equipment. What we do is simple. REBO produces according to the customer’s required size and cell shape. And we pack to export standards. We deliver on time. That is why many customers have grown from a first order into long-term cooperation.
Ceramic Honeycomb Applications Across Industries
REBO gegenerators are used across a wide range of industries, from metallurgy and glass to environmental protection and chemicals. Every application has its own temperature, atmosphere, and corrosion conditions. That is why we match the right material to each specific part. Corundum-mullite, mullite, high alumina, and cordierite honeycomb are all available.
| Industry | Part | Recommended Material |
|---|---|---|
| Metallurgy (Ferrous + Non-Ferrous) | Pusher-type/walking-beam reheating furnace | Corundum Mullite |
| Heat treatment furnace, forging furnace | Corundum Mullite/Mullite | |
| Melting furnace | High Alumina/Corundum Mullite | |
| Ladle/tundish preheater | Cordierite/Mullite | |
| Soaking pit | Corundum Mullite | |
| Blast furnace hot blast stove | Mullite/High Alumina | |
| Radiant tube burner, bell-type furnace | Cordierite/Mullite | |
| Non-ferrous metal smelting furnace | Corundum Mullite/Zirconia Corundum | |
| Environmental Protection | RTO | Cordierite/Dense Cordierite |
| RCO | Cordierite/Mullite | |
| Ceramics & Glass | Ceramic kiln | Mullite/Cordierite |
| Glass melting furnace | Corundum Mullite/Zirconia Corundum | |
| Petrochemical/Chemical | Tubular heater | Mullite/Corundum Mullite |
| Cracking furnace | Corundum Mullite/High Alumina | |
| Oil and gas boiler | Cordierite/Mullite | |
| Others | Industrial furnaces (machinery) | Cordierite/Mullite |
| Coating/painting industry | Cordierite |
REBO Manufacturing Strength
REBO has its own production base and production lines. We complete everything in-house, from raw materials to finished products. We master core processes such as extrusion, mold development, drying, and sintering. The honeycomb structure is formed in one piece, with uniform walls and high dimensional accuracy. We do not rely on outsourcing. This gives us better control over both delivery and quality.
We can develop molds for different cell shapes, cell counts, and sizes according to customer needs. Sizes, materials, and end face shapes are also available for non-standard customization. Sampling lead time is short. We follow through from requirement confirmation to mass production.
REBO carefully selects high-quality raw materials such as corundum, mullite, cordierite, high alumina, and zirconia. This ensures batch-to-batch consistency from the source. We have large-scale production capacity. Standard sizes are kept in stock. Custom orders are scheduled by plan. We support long-term stable supply.
REBO continuously improves product structures, such as developing T-shaped and plate-combined heat storage media. We provide solutions for industry pain points like clogging, pressure drop, and uneven airflow. REBO recommends the best material and cell shape based on customer working conditions. We also provide selection advice and technical support.
Quality Compliance of Ceramic Honeycomb Block
REBO honeycombs meet major Chinese standards and international certifications. On the Chinese side, we follow JC/T 2135, GB/T 25994, and JC/T 686. On the international side, we hold ISO 9001, ISO 14001, ISO 45001, OHS, CE, and SGS. Third-party testing is also available upon request. In short, REBO ensures product quality in every aspect.
FAQs About Honeycomb Ceramic Regenerator
Q：Is REBO a Honeycomb Molecular Sieve Supplier and Manufacturer?
Q: Will the Ceramic Honeycomb Clog After Long-term Use?
Q: How Is the Thermal Shock Resistance? How Many Thermal Cycles Can It Withstand?
Q: Will the Ceramic Honeycomb Crack or Shed Particles After Some Time?
Q: Are the Cell Wall Thickness and Cell Size Uniform? Does This Affect Heat Exchange Efficiency?
Q: What Is the Maximum Temperature? Can the Rated Temperature Be Used Long-Term?
Q: What Is the Delivery Time for Standard Sizes?
Q: What Is the Delivery Time for Custom Ceramic Honeycomb?
Q: Can You Expedite the Order?
Q: Is Delivery Stable for Large Orders?
Q: Can I Get a Sample for Testing First?
Q: Do Samples Cost Money?
Q: Are Samples Consistent with Bulk Products?
Q: How Long Does Sampling Take?
Q: What Are the Problems with Square Cell Honeycomb Molecular Sieve?
Q: Is There a Solution for Clogging and Uneven Airflow?
Q: What Other Advantages Does the T-Shaped Structure Have?
Q: Where Are T-Shaped Products Used?
Q: What Models Are Available for T-Shaped Products?
Q: What Specifications Are Available for T-Shaped Products?
305×305×101mm
101×101×101mm