High-performance Silicon Carbide (SiC) kiln furniture by Highland Refractory. Professional RBSiC & NSiC solutions for plates, crucibles, nozzles, and beams. Features 1650°C temperature resistance, ±1mm dimensional precision, and certified <0.8% sea-freight breakage. 31 years of expert manufacturing with factory-direct pricing for global industrial kiln projects.
Silicon carbide plates are mainly composed of silicon carbide (SiC) as the aggregate (with a content usually ≥ 80%).
Silicon carbide nozzle, also known as silicon carbide burner nozzle or SiC nozzle, is a high-performance ceramic component designed for extreme industrial combustion and high-temperature processing systems. It is widely used in industrial burners, furnaces, kilns, and thermal processing equipment where conventional metal or standard ceramic nozzles cannot withstand long-term thermal, chemical, and mechanical stress. Manufactured from advanced silicon carbide (SiC) material, this nozzle provides outstanding thermal shock resistance, oxidation resistance, wear resistance, and long service life, making it an ideal solution for modern high-efficiency industrial heating systems.
Silicon carbide beam, also known as SiC beam, is a high-performance ceramic structural component widely used in kiln furniture systems, industrial furnaces, and high-temperature load-bearing applications. It is engineered to maintain exceptional mechanical strength, thermal stability, and dimensional integrity under extreme operating conditions where traditional metallic or ceramic beams fail. Compared with steel beams or alumina beams, silicon carbide beams provide significantly higher temperature resistance, superior creep resistance, and longer service life, making them an essential solution for advanced thermal processing industries.
Silicon carbide tubes, also known as SiC tubes, silicon carbide pipes, or carbide tubes, are advanced ceramic components designed for continuous operation in extreme high-temperature, corrosive, and thermally demanding environments. They are widely used in industrial furnaces, kilns, heat treatment systems, and chemical processing equipment where conventional ceramic or metal tubes fail prematurely. Manufactured from high-purity silicon carbide, these tubes offer an exceptional combination of thermal shock resistance, mechanical strength, oxidation resistance, and long service life, making them a preferred choice for demanding industrial applications worldwide.
Silicon Carbide Crucibles are high-performance refractory containers engineered for metal melting, alloy processing, and extreme-temperature industrial operations. Known for their excellent thermal shock resistance, high mechanical strength, and long service life, SiC crucibles are widely used in metallurgy, foundries, laboratories, and industrial furnaces. SiC crucibles maintain strong mechanical integrity even at temperatures above 1600°C, ensuring dimensional stability and structural safety during metal melting and holding processes.
Highland Refractory provides ultra-high-performance Silicon Carbide solutions engineered for extreme thermal conductivity and superior erosion resistance. We specialize in Nitride-bonded (NBSC), Oxide-bonded (OSiC), and Reaction-sintered (SiSiC) grades with SiC content ranging from 85% to 98%. Designed for waste incinerators, ceramic kilns, and non-ferrous metallurgy, our SiC bricks and custom plates ensure exceptional thermal shock stability up to 1550°C. Direct factory supply with high-precision sizing (±0.5mm). Request your 2026 technical catalog and bulk quote in 2 hours.
Silicon carbide plates are mainly composed of silicon carbide (SiC) as the aggregate (with a content usually ≥ 80%).
Silicon carbide nozzle, also known as silicon carbide burner nozzle or SiC nozzle, is a high-performance ceramic component designed for extreme industrial combustion and high-temperature processing systems. It is widely used in industrial burners, furnaces, kilns, and thermal processing equipment where conventional metal or standard ceramic nozzles cannot withstand long-term thermal, chemical, and mechanical stress. Manufactured from advanced silicon carbide (SiC) material, this nozzle provides outstanding thermal shock resistance, oxidation resistance, wear resistance, and long service life, making it an ideal solution for modern high-efficiency industrial heating systems.
Silicon carbide beam, also known as SiC beam, is a high-performance ceramic structural component widely used in kiln furniture systems, industrial furnaces, and high-temperature load-bearing applications. It is engineered to maintain exceptional mechanical strength, thermal stability, and dimensional integrity under extreme operating conditions where traditional metallic or ceramic beams fail. Compared with steel beams or alumina beams, silicon carbide beams provide significantly higher temperature resistance, superior creep resistance, and longer service life, making them an essential solution for advanced thermal processing industries.
Silicon carbide tubes, also known as SiC tubes, silicon carbide pipes, or carbide tubes, are advanced ceramic components designed for continuous operation in extreme high-temperature, corrosive, and thermally demanding environments. They are widely used in industrial furnaces, kilns, heat treatment systems, and chemical processing equipment where conventional ceramic or metal tubes fail prematurely. Manufactured from high-purity silicon carbide, these tubes offer an exceptional combination of thermal shock resistance, mechanical strength, oxidation resistance, and long service life, making them a preferred choice for demanding industrial applications worldwide.
Silicon Carbide Crucibles are high-performance refractory containers engineered for metal melting, alloy processing, and extreme-temperature industrial operations. Known for their excellent thermal shock resistance, high mechanical strength, and long service life, SiC crucibles are widely used in metallurgy, foundries, laboratories, and industrial furnaces. SiC crucibles maintain strong mechanical integrity even at temperatures above 1600°C, ensuring dimensional stability and structural safety during metal melting and holding processes.
Highland Refractory provides ultra-high-performance Silicon Carbide solutions engineered for extreme thermal conductivity and superior erosion resistance. We specialize in Nitride-bonded (NBSC), Oxide-bonded (OSiC), and Reaction-sintered (SiSiC) grades with SiC content ranging from 85% to 98%. Designed for waste incinerators, ceramic kilns, and non-ferrous metallurgy, our SiC bricks and custom plates ensure exceptional thermal shock stability up to 1550°C. Direct factory supply with high-precision sizing (±0.5mm). Request your 2026 technical catalog and bulk quote in 2 hours.
Product Guide Index
Kiln shelves are critical load-bearing components in industrial kilns and furnaces. They provide stable support for products during firing, heat treatment, and sintering processes while withstanding continuous high temperatures, mechanical loads, and thermal cycling.
Highland Refractory supplies industrial-grade kiln shelves and refractory plates designed for demanding kiln environments. Our kiln shelves are widely used in ceramic kilns, tunnel kilns, roller hearth kilns, heat treatment furnaces, and other high-temperature industrial systems where reliability, dimensional stability, and load resistance are essential.
We offer standard sizes as well as custom kiln shelves manufactured to drawing, helping customers optimize kiln performance, reduce downtime, and extend service life.
Kiln shelves are flat refractory components installed inside kilns and furnaces to support products during thermal processing. Unlike insulation materials, kiln shelves must withstand both high temperature and mechanical stress at the same time.
In industrial kilns, kiln shelves play several critical roles:
Poor-quality kiln shelves can lead to product warping, kiln damage, and frequent replacement, increasing operating costs. Selecting the right kiln shelf material and specification is therefore a key engineering decision rather than a simple purchasing choice.
Highland Refractory manufactures a wide range of kiln shelves suitable for different temperature levels, loads, and kiln designs.
| Parameter | Typical Range |
|---|---|
| Bulk Density | 1.9 – 2.4 g/cm3 |
| Cold Crushing Strength (CCS) | ≥ 30 MPa |
| Thermal Shock Resistance | Excellent |
| Load-Bearing Stability | High |
Exact specifications vary depending on material composition and application requirements.
Different kiln applications require different kiln shelf materials. Understanding material characteristics is essential for correct selection.
Fire brick kiln shelves are made from high-quality clay or high-alumina refractory materials.
Silicon carbide kiln shelves offer superior strength and thermal performance.
Mullite-based kiln shelves are designed for high-temperature stability and reduced thermal expansion.
| Property | High Alumina | Silicon Carbide (SiC) | Mullite |
|---|---|---|---|
| Al2O3 / SiC (%) | 45% – 85% | 85% – 99% | 65% – 75% |
| Bulk Density (g/cm3) | 2.1 – 2.5 | 2.6 – 3.0 | 2.3 – 2.6 |
| Max Temp (°C) | 1400°C | 1450°C | 1650°C |
Choosing kiln shelves should be based on operating conditions, not just price. Key factors to consider include:
Selecting the correct kiln shelf material can significantly reduce breakage, deformation, and replacement frequency.
Tunnel kilns operate continuously and require kiln shelves with stable performance over long periods. Recommended materials: Fire brick kiln shelves, Mullite kiln shelves.
Roller kilns demand lightweight yet strong shelves with excellent thermal shock resistance. Recommended materials: Silicon carbide kiln shelves.
Heat treatment furnaces often involve frequent heating and cooling cycles. Recommended materials: High-strength fire brick shelves, Advanced ceramic shelves.
Batch furnaces require versatile kiln shelves that can handle varied loads and temperatures. Recommended materials: Fire brick kiln shelves, Custom-designed refractory plates.
Load capacity is a critical parameter that directly affects kiln shelf lifespan. General guidelines:
As a rule, kiln shelf thickness should be selected based on both load weight and span length, not thickness alone. Our engineering team can assist with load calculations to ensure safe and efficient kiln operation.
Proper selection, correct installation, and appropriate firing practices are essential for long-term performance.
Highland Refractory provides custom kiln shelf manufacturing based on customer drawings and application requirements. Customization options include:
Our OEM service helps customers improve kiln efficiency and reduce operational risk.
All kiln shelves are manufactured under strict quality control procedures, including raw material inspection, controlled forming and firing processes, dimensional accuracy checks, and mechanical and thermal performance testing. This ensures consistent quality and reliable performance in industrial applications.
Depending on material, kiln shelves typically operate between 1300°C and 1450°C. Specialized SiC and Mullite grades can reach up to 1650°C.
Yes. Custom sizes, thicknesses, and reinforced designs are available based on your technical drawings and kiln car layout.
Load capacity depends on the material's bending strength, shelf thickness, span length between pillars, and operating temperature. Our engineers provide load-calculation support for every project.
Fire brick shelves are cost-effective for general medium-heat use, while silicon carbide shelves offer much higher strength, extreme thermal shock resistance, and near-zero warping at high temperatures.
Our standard B2B MOQ is 1 pallet (approx. 1.0 to 1.5 tons). We focus on industrial-scale supply and technical projects rather than small retail orders.
Selecting the right kiln shelves is an engineering decision that directly impacts kiln performance and operating cost. Contact our technical team today to receive a tailored solution.
Reply within 12 hours | 31+ Years Industrial Expertise
Silicon carbide plates are mainly composed of silicon carbide (SiC) as the aggregate (with a content usually ≥ 80%).
Silicon carbide nozzle, also known as silicon carbide burner nozzle or SiC nozzle, is a high-performance ceramic component designed for extreme industrial combustion and high-temperature processing systems. It is widely used in industrial burners, furnaces, kilns, and thermal processing equipment where conventional metal or standard ceramic nozzles cannot withstand long-term thermal, chemical, and mechanical stress. Manufactured from advanced silicon carbide (SiC) material, this nozzle provides outstanding thermal shock resistance, oxidation resistance, wear resistance, and long service life, making it an ideal solution for modern high-efficiency industrial heating systems.
Silicon carbide beam, also known as SiC beam, is a high-performance ceramic structural component widely used in kiln furniture systems, industrial furnaces, and high-temperature load-bearing applications. It is engineered to maintain exceptional mechanical strength, thermal stability, and dimensional integrity under extreme operating conditions where traditional metallic or ceramic beams fail. Compared with steel beams or alumina beams, silicon carbide beams provide significantly higher temperature resistance, superior creep resistance, and longer service life, making them an essential solution for advanced thermal processing industries.
Silicon Carbide Crucibles are high-performance refractory containers engineered for metal melting, alloy processing, and extreme-temperature industrial operations. Known for their excellent thermal shock resistance, high mechanical strength, and long service life, SiC crucibles are widely used in metallurgy, foundries, laboratories, and industrial furnaces. SiC crucibles maintain strong mechanical integrity even at temperatures above 1600°C, ensuring dimensional stability and structural safety during metal melting and holding processes.
Silicon carbide tubes, also known as SiC tubes, silicon carbide pipes, or carbide tubes, are advanced ceramic components designed for continuous operation in extreme high-temperature, corrosive, and thermally demanding environments. They are widely used in industrial furnaces, kilns, heat treatment systems, and chemical processing equipment where conventional ceramic or metal tubes fail prematurely. Manufactured from high-purity silicon carbide, these tubes offer an exceptional combination of thermal shock resistance, mechanical strength, oxidation resistance, and long service life, making them a preferred choice for demanding industrial applications worldwide.
Highland Refractory provides ultra-high-performance Silicon Carbide solutions engineered for extreme thermal conductivity and superior erosion resistance. We specialize in Nitride-bonded (NBSC), Oxide-bonded (OSiC), and Reaction-sintered (SiSiC) grades with SiC content ranging from 85% to 98%. Designed for waste incinerators, ceramic kilns, and non-ferrous metallurgy, our SiC bricks and custom plates ensure exceptional thermal shock stability up to 1550°C. Direct factory supply with high-precision sizing (±0.5mm). Request your 2026 technical catalog and bulk quote in 2 hours.
Silicon carbide castable is an amorphous refractory material with silicon carbide as the main component.
