Import 25 Mm Yt-Stabilized Zirconia Bead — Buy in wholesale FOB from Supplier in China

These 25 mm yttria-stabilized zirconia (YSZ) beads from Zibo Win-Ceramic Material Co. Ltd are engineered grinding media for high-intensity milling applications. The composition is specified as 94.6% ZrO₂ and 5.2% Y₂O₃ by weight, with the yttria stabiliser preventing monoclinic-to-tetragonal phase transformation during thermal cycling and mechanical impact. At 25 mm diameter, these are coarse beads suited for initial comminution stages or for mills requiring large media for high throughput. The cubic zirconia crystal structure conferred by yttria doping provides the fracture toughness and wear resistance necessary for extended service in aggressive milling environments.

The material exhibits exceptional hardness and density relative to alternative ceramic media. YSZ typically achieves Vickers hardness of 12-14 GPa and density near 6.0 g/cm³, though buyers should request the supplier's certified values for this specific grade. The 5.2% Y₂O₃ content sits within the fully stabilised cubic phase field, eliminating the volume expansion associated with the martensitic tetragonal-to-monoclinic transformation in unstabilised zirconia. This phase stability is critical for applications where localised heating from bead-to-bead collision could otherwise induce surface spalling and contamination of the milled product. The beads are suitable for both wet and dry operation, though wet grinding predominates in the applications listed.

Target buyers include manufacturers of electronic ceramics, refractories, pigments, and pharmaceutical active ingredients where product purity and narrow particle size distribution are essential. The vertical stirring mills and pin-type sand mills referenced require media with high sphericity and narrow size classification to maintain consistent milling action and prevent mill damage. The supplier notes particular suitability for contamination-sensitive applications including food, cosmetics, and medicine, where metallic wear debris from steel or iron media would be unacceptable. Import buyers should confirm bead sphericity, surface finish, and fracture resistance before committing to bulk volumes, and validate that the 25 mm size matches their mill's media specification.

Zibo Win-Ceramic Material Co. Ltd is located at No.22 Changguo Western Road, Zhangdian District, Zibo, Shandong Province, China (255000). The company holds a Harbor trust tier on the platform, with a recorded response rate of 0.00% and zero average response hours, indicating no tracked enquiry replies through the platform system. No founding date, ownership structure, employee count, annual revenue, or quality management certification information appears in the available source data. The address places the company in Zibo's ceramic industrial cluster, a region with extensive raw material access and established supply chains for alumina, zirconia, and silicon carbide products.

The supplier positions itself as a specialist in ceramic grinding media with particular expertise in YSZ products for ultrafine grinding applications. The listing indicates export orientation and familiarity with international buyer requirements, referencing performance-to-cost ratio comparisons with alumina and glass alternatives. Buyers should independently verify production capacity, batch consistency controls, and quality assurance protocols. The absence of response data suggests direct contact through alternative channels may be necessary. Request factory audit capability, existing international client references, and third-party test reports before placing substantial orders.