A fire brick, firebrick, or refractory brick is a block of refractory ceramic material used in lining furnaces and kilns.
A refractory brick is built primarily to withstand temperature, but should also usually have a low thermal conductivity to save energy. Usually dense firebricks are used in applications with extreme mechanical, chemical, or thermal stresses, such as the inside of a wood-fired kiln or a furnace, which is subject to abrasion from wood, fluxing from ash or slag, and high temperatures. In other, less harsh situations, such as a natural gas fired kiln, more porous bricks are a better choice. They are weaker, but they are much lighter, easier to form, and insulate far better than dense bricks. In any case, firebricks should not spall under rapid temperature change, and their strength should hold up well during rapid temperature changes.
To achieve high quality & High Productivity, we are using Fleet of heavy duty press for higher dense material & High temperature tunnel kiln for controlled and uniform firing.