Shijiazhuang Hongtao Technology Co., Ltd., a professional high-tech enterprise based in Zhengding County, Shijiazhuang, Hebei, China, specializes in R&D, manufacturing and customization of high-temperature polycrystalline mullite fiber furnace chambers, core components for industrial kilns and laboratory high-temperature equipment.

Made of high-purity Al₂O₃ (72%-99%) and SiO₂ raw materials via sol-gel technology and vacuum forming integration, these furnace chambers feature excellent high-temperature resistance, with a maximum working temperature of 1800℃ and long-term service temperature up to 1600℃[2][7]. They have a bulk density of 300-450 kg/m³ and ultra-low linear shrinkage (≤0.2% at 1600℃ for 8 hours)[1][3].

Boasting low thermal conductivity (0.10-0.23 W/m·K at 600-1000℃), they save 30%-60% energy compared with traditional refractory brick chambers[3][5]. With superior thermal shock resistance, they can withstand frequent temperature changes without cracking, and their non-asbestos, slag-free design ensures a clean sintering environment[1][3].

Widely applied in industrial kilns, laboratory muffle furnaces, new energy and aerospace fields, they serve as core insulation and heating chambers for material sintering, annealing and calcination[4][6][11]. Shijiazhuang Hongtao provides customized size and thickness solutions, adhering to innovation to deliver high-quality fiber furnace chambers for global partners.