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Clay Insulation Brick | Lightweight Fireclay Insulating Refractory for Industrial Kilns
Product Overview
Core Features
- Low thermal conductivity and excellent heat preservation performance, significantly improving furnace energy efficiency.
- Light weight and low bulk density, reducing load on furnace steel structures and foundation investment.
- Stable thermal shock resistance, able to adapt to periodic temperature rise and cooling in intermittent kiln operation.
- Good dimensional accuracy, easy to cut and process for flexible on-site construction.
- Economical raw material formula, offering obvious cost advantages compared with high-alumina insulating bricks.
- Stable volume change under service temperature, effectively avoiding lining cracking and peeling.
Note: Clay insulation brick is not suitable for areas directly exposed to molten slag, strong abrasion or long-term heavy load. It is recommended for backup insulation layers or mild-temperature hot-face lining.
Main Applications
- Backup thermal insulation lining for shuttle kilns, tunnel kilns, roller kilns used in ceramic, pottery and building material industries.
- Insulation layers of heating furnaces, annealing furnaces and tempering furnaces in metallurgy and machinery heat treatment workshops.
- Inner lining insulation for various industrial boilers, waste incinerators and drying furnaces.
- Thermal insulation layers of chemical industry thermal reactors and medium-temperature heating equipment.
- Auxiliary insulation structure for small metal melting furnaces and forging furnaces.
Product Grades & Technical Reference
We supply multiple grades of clay insulation bricks classified by bulk density and maximum service temperature, covering working temperature ranging from 1000℃ up to 1350℃.
Standard dimension: 230×114×65 mm. Custom special sizes and arch bricks are available upon client drawings.
Construction Guidance
- Store bricks indoors and avoid long-term exposure to rain and damp atmosphere, as moisture will degrade insulation effect.
- Choose matched lightweight refractory mortar for laying. Control mortar joint thickness evenly to prevent heat leakage through gaps.
- Avoid heavy impact during transportation and masonry to prevent brick breakage. On-site cutting should adopt professional tools to keep section neat.
- Complete gradual heating-up after kiln masonry to remove residual moisture inside bricks, prevent lining spalling caused by rapid temperature rise.
Storage & Transportation
Products are packed on wooden pallets or in waterproof plastic packages to avoid dampness during sea and land transportation.
Keep inventory in dry, ventilated warehouses. Stack height should be controlled reasonably to avoid crushing the bottom layers. Please inspect cargo appearance upon arrival and separate damaged bricks before construction.
Our Advantages
We implement strict raw material screening and high-temperature sintering process for clay insulation bricks. Uniform pore distribution guarantees stable thermal conductivity of each batch.
Our technical team can provide grade selection suggestions according to your furnace working temperature, structural load and energy-saving targets. Apart from standard specifications, customized size and formula solutions are supported.
Why Choose Us
As a professional refractory manufacturer, we maintain stable mass production and strict finished product inspection. We can offer competitive factory-direct prices and flexible delivery schedules.
Full supporting service is available, including technical data sheets, inspection certificates, on-site construction advice and furnace commissioning guidance. Global buyers are welcome to send inquiries for FOB quotation and sample arrangement.
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