Product Description
XICRU™ Induction Furnace Crucibles for Electromagnetic Melting of Aluminium, Copper, Gold & Rare Metals – 620-1400°C, Up to Ø1525 mm, Low Thermal Expansion
XICRU™ Induction Furnace Crucibles are specially engineered for high-frequency induction melting in electromagnetic conditions. They excel in low-temperature aluminium alloy smelting (660.3 °C) and high-temperature refining of copper, gold, silver and rare metals up to 1400 °C. Manufactured from advanced Sialon (Si₃Al₃O₃N₅) and sintered silicon carbide ceramics, they ensure uniform heat distribution with minimal thermal losses, outstanding thermal shock resistance and exceptional durability in aggressive molten non-ferrous environments.
Key advantages include low thermal expansion (3.2–3.5 ×10⁻⁶/°C), zero water absorption, high chemical stability and low thermal conductivity for efficient energy use and long service life. Maximum dimensions reach Ø1525 mm × 1050 mm height – among the largest induction crucibles available. They integrate seamlessly with induction heating systems and complement Sialon ULTRA™ components such as immersion heaters, riser tubes and degassing systems.
Full technical specifications (ULTRA™ grades 001–004):
- Bulk density: 3.1–3.3 g/cm³
- Flexural strength: 580–1,020 MPa
- Vickers hardness: 12.7–15.0 GPa
- Fracture toughness: 4–7 MPa·m¹/²
- Thermal conductivity (20 °C): 23–54 W/(m·K)
- Heat shock resistance: up to 900 °C
- Volume resistivity (20 °C): >10¹⁴ Ω·cm
Since 1986, these crucibles deliver the best price/performance ratio with minimal maintenance and fast delivery (typically 4 weeks). View XICRU™ Induction Furnace Crucibles – custom shapes, sizes and lids available on request. Standard 12-month warranty against chemical attack.
XICRU™ Crucibles are premium isostatic-pressed crucibles for high-temperature melting of aluminium, zinc, copper, gold, zinc oxide distillation and more. All models are available in very large sizes (up to Ø1525 mm) and come with our standard 12-month warranty.
Available XICRU™ Crucible Series
- XICRU™ HT Series Crucibles (Gray) – High-temperature series with anti-oxidation coating for zinc oxide distillation and copper/gold/silver melting (900–1400 °C).
- XICRU™ NF Series Crucibles (Black) – Extra-fired anti-oxidation coating for aluminium & zinc alloy smelting (620–920 °C), longest service life in coke/gas-fired furnaces.
- XICRU™ Resistance Furnace Crucibles – Optimized for Striko Westomat and resistance furnaces, excellent thermal efficiency at 620–920 °C.
- XICRU™ Induction Furnace Crucibles – Specially designed for electromagnetic induction melting of aluminium, copper, gold & rare metals (620–1400 °C).
- SSiC Sintered Silicon Carbide Crucibles – General-purpose high-temperature crucibles up to 1900 °C in controlled atmosphere.
Custom shapes, sizes and lids are available on request. Fast quotation – usually within 24 hours.




