Custom-Shaped Refractory Bricks: Reliable Solutions for Complex Kilns

Custom-shaped refractory bricks—also known as special-shaped refractory bricks—play a crucial role in lining complex kiln geometries. At Kerui Refractory, we design, manufacture, and supply precision-engineered refractory shapes such as wedge bricks, taper bricks, arch bricks, and fully customized forms based on your furnace drawings and process conditions.

Most Common Shapes of Shaped Refractory Bricks

Selecting the right brick shape is just as critical as choosing the correct material. The following are the most widely used brick shapes in the refractory industry:

• Wedge Bricks: Engineers often use wedge bricks in circular linings. These shaped refractory bricks create a perfect arc and eliminate gaps, which improves thermal performance.

• Taper Bricks: Taper bricks allow smooth transitions in wall thickness or kiln diameter. As a result, they keep the structure tightly packed and stable.

• Skew Bricks: Also known as angled wedge bricks, skew bricks provide a seamless connection between straight walls and curved arches. They are essential for sloped sections and transitional zones.

• Arch Bricks / Curved Bricks: With a tapered form, arch bricks help construct domes or arched furnace roofs. Their geometry distributes load efficiently and improves mechanical stability.

• Key Bricks: Key bricks serve as the final locking brick in an arch structure. When inserted under pressure, they secure the arch against thermal and structural expansion.

• L-Shaped and Corner Bricks: These bricks form clean and durable corners without the need for cutting. Their precise shape ensures structural strength and easier installation.

• Sleeve Bricks / Round-Hole Bricks: Designed with built-in holes, sleeve bricks accommodate thermocouples, burners, or air/fuel inlets. They offer functional access without compromising insulation.

• Notched and Interlocking Bricks: With grooves or projections, these bricks lock into neighboring units, which enhances stability in areas exposed to vibration or mechanical stress.

• Other Common Custom Bricks: We also offer: Multi-hole Bricks, Grooved Bricks, Flanged Bricks, Burner Blocks, Thermocouple Sheath Bricks, and Furnace Door Bricks…

Each of these forms serves a specific purpose—whether guiding airflow, anchoring components, or resisting mechanical load. They can be produced in insulating or dense compositions and various alumina levels.

Why Choose Kerui for Custom Refractory Bricks?

1. High Dimensional Precision:
At Kerui, we maintain tight dimensional tolerances during manufacturing. This ensures seamless brick alignment and reduces the risk of structural gaps or heat loss during high-temperature operation.

2. Tailored Performance:
We offer a wide range of materials for refractory bricks, including: High alumina bricks, Silica bricks, Magnesia bricks, Silicon carbide bricks, etc.

Depending on your operating temperature, furnace atmosphere, and mechanical load, we select the ideal material to deliver thermal shock resistance, erosion resistance, and compressive strength.

3. Adaptability to Complex Kilns:
Kerui’s shaped bricks are already in use across multiple high-temperature industries:

Iron and steel (EAFs, ladles, tundish)

Cement and lime kilns

Glass furnaces

Carbon plants and energy sectors

Other high-temperature industries

We adapt each product to your specific working cycle and chemical conditions—no matter how aggressive or unusual.

4. Lower Installation & Maintenance Costs:
Custom shapes eliminate the need for cutting and adjustments on site. This not only speeds up installation but also reduces labor and waste. Furthermore, our precision fit leads to longer furnace life and reduced maintenance frequency.

Kerui’s Customization Capabilities

With over 20 years of experience, Kerui offers full customization services:

• In-house design and mold fabrication
• Fast sampling and prototyping
• Stable mass production under ISO-certified QA
• Technical consulting and CAD drawing support

Whether you need wedge bricks for a rotary kiln or complex burner blocks for a furnace retrofit, Kerui delivers professional refractory solutions with speed, accuracy, and long-term reliability.

Contact Us for Tailored Refractory Shapes

Need high-precision wedge bricks or complex kiln shapes? Partner with Kerui Refractory for cost-effective, custom refractory solutions that improve furnace performance from day one.

Let’s build linings that last longer, perform better, and require less downtime.