Fine-pored crucible

The industry standard for fine-pore crucibles is known as “fine-pore crucible” or “Gooch crucible.” These are high-temperature filtration crucibles featuring an integrated porous filter disc at the base. The Tangshan region, a major producer of refractory ceramics, manufactures these crucibles extensively in alumina and ceramic materials. They are widely used in coal quality testing and mineral analysis applications and differ fundamentally from conventional solid-bottom crucibles. Basic Structural Features The overall shape resembles that of a standard crucible, with a cup‑like form. Its structure incorporates a monolithic, sintered porous filter plate at the base; the crucible body and filter are fused into a single, seamless component, eliminating any joints or gaps. This design enables high‑temperature vacuum filtration under negative pressure conditions. Model Specifications: 25 mL: outer diameter 37 mm, height 40 mm, bottom diameter 26 mm; 30 mL: outer diameter 40 mm, height 45 mm, bottom diameter 26 mm; 50 mL: outer diameter 44 mm, height 59 mm, bottom diameter 30 mm.

Product introduction