Sintyron Supplies Fire assay clay crucible

Hunan, China – October 30, 2026 Xingtailong Special Ceramics officially launches its upgraded refractory clay crucible series, built for fire assay laboratories, mineral assay plants, foundries and precious metal refineries worldwide.

Clay crucibles are critical refractory consumables used to hold samples and fluxes under high-temperature melting conditions. Our new clay crucibles are formulated with carefully selected refractory clay raw materials, shaped by isostatic pressing and high-temperature sintering. They feature steady refractory performance, controlled porosity, good thermal stability and low contamination risk during melting.

Suitable scenarios cover fire assay gold & silver testing, melting of copper, brass, aluminum, zinc and other non-ferrous metals, mineral analysis and high-temperature laboratory testing. Each batch goes through strict quality inspection to keep consistent size and thermal property, avoiding unexpected cracking and sample failure in fire assay work.

We support standard sizes and OEM custom service: different capacities, shapes and inner structure can be produced according to customer drawings or technical requirements. Fast sampling and bulk supply are available for global buyers from mining labs, assay institutes and metal casting workshops.

“As mining and precious metal refining markets keep growing, reliable clay crucibles directly decide the accuracy of fire assay results,” said our product engineer. “We optimize the clay body formula to balance heat resistance and anti-flux erosion, helping customers cut re-test cost and improve working efficiency.”

Our factory owns full production lines from raw material processing, forming, sintering to final inspection. All refractory ceramic products can be supplied together with fire assay cupels, alumina crucibles and other lab refractory parts for one-stop procurement.

For technical datasheets, sample requests and quotation, please contact our sales team directly.

Keywords: clay crucible, fire assay clay crucible, refractory crucible, melting crucible, mineral assay crucible, non-ferrous metal melting crucible