4mm-5mm Pressureless Sintered Silicon Carbide Grinding Balls

High-performance grinding media manufactured from high-purity α-SiC microcrystalline powder for precision industrial applications.

Manufactured from high-purity α-SiC microcrystalline powder with zero heavy metal doping and non-inert filler addition, delivering ultra-high material purity and exceptional physicochemical stability.

With ultra-low thermal deformation coefficient and excellent high-temperature oxidation resistance, the substrate generates no free impurity precipitation during continuous operation, effectively maintaining high cleanliness and stable quality of processed high-end powder materials.

This series adopts advanced pressureless solid-phase sintering technology with full-process standardized industrial quality control to guarantee superior batch stability and performance consistency.

• High-precision raw material proportioning and ultrafine pulverization
• Spray granulation for optimized powder fluidity and bulk density
• Cold isostatic pressing to achieve uniform density and isotropic spherical structure
• High-temperature vacuum sintering above 2100℃ for microcrystalline densification and recrystallization
• Precision finishing and hierarchical screening

The finished products undergo multi-stage dimensional calibration, spherical precision polishing, graded classification and defect screening, ensuring superior sphericity and minimal dimensional tolerance.

High-precision industrial medium-diameter grinding medium covering two mainstream benchmark sizes of 4mm and 5mm, with support for customized 4-5mm gradient proportional blending.

The 4-5mm specification is regarded as the optimal medium-diameter medium for powder pretreatment, agglomerate dispersion and medium-fine homogenization, perfectly balancing impact crushing capacity and uniform shear grinding effect.

• Ultra-low Wear Rate & Extended Service Life: Compact microcrystalline sintered structure reduces medium self-abrasion and enhances mechanical fatigue resistance
• High Purity & Zero Secondary Contamination: Pure ceramic metal-free structure avoids ionic precipitation and foreign substance doping
• Full-condition Working Adaptability: Outstanding corrosion resistance, high-temperature stability and thermal shock resistance
• Homogeneous Grinding & High Machining Accuracy: High-sphericity spheres deliver uniform impact and shear force fields
• Superior Thermal Conduction & Heat Dissipation: High thermal conductivity rapidly dissipates frictional heat generated during grinding

• New Energy Industry: Precision pretreatment and medium-fine grinding of lithium battery materials
• Advanced Ceramics Industry: Homogenization and ultrafine refinement of ceramic body powder and glaze powder
• Fine Chemical Industry: High-cleanliness dispersion and ultrafine grinding of pigments, inks, and coatings
• Rare Earth & Metallurgical Industry: Crushing and ultrafine refinement of rare earth oxides and metal powder
• General Industrial Applications: Homogeneous mixing and medium-fine precision grinding of industrial powder materials

Silicon carbide is a high-performance structural ceramic ranked second only to diamond in hardness, delivering far superior wear resistance compared with conventional grinding media.

Featuring high mechanical strength and fracture toughness, it resists chipping, cracking and pulverization under long-term high-load cyclic operation. The material exhibits excellent thermal stability, maintaining structural integrity at maximum temperatures of 1600℃ with exceptional thermal shock resistance.

For further information or to discuss your specific needs, please contact us directly.