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   Product Description


Metallurgical Grade Alumina Grinding Balls are manufactured from high-quality alumina (Al₂O₃) with optimized purity levels through advanced high-temperature sintering technology. Designed for demanding metallurgical environments, these grinding media provide excellent mechanical strength, stable performance, and cost-effective wear resistance.

The product features a white appearance with good sphericity and is available in sizes ranging from 1–50 mm, with customization options to meet specific operational requirements.

The RB-M series includes RB-M-1 and RB-M-2, tailored for different metallurgical applications by balancing purity and impurity content. They are widely used in mineral processing, metal powder preparation, slag grinding, and other heavy-duty industrial milling processes.


   Product Features


  • Optimized alumina content, ensuring reliable performance in metallurgical grinding

  • High strength and impact resistance, suitable for high-load milling conditions

  • Good wear resistance, reducing media consumption and operational cost

  • Stable chemical properties, resistant to corrosion in harsh environments

  • Excellent sphericity, improving grinding efficiency and uniformity

  • Wide size range (1–50 mm), customizable according to process requirements


   Technical Specifications


ModelRB-M-1RB-M-2
AppearanceWhite grinding ballWhite grinding ball

Chemical Composition


ElementUnitRB-M-1RB-M-2
Al₂O₃%≥92≥95
SiO₂%≤4.0≤2.5
Fe₂O₃%≤0.5≤0.3
Na₂O%≤0.5≤0.3
CaO%≤1.0≤0.5


Physical Properties


ItemUnitRB-M-1RB-M-2
Bulk Densityg/cm³≥3.5≥3.6
Water Absorption%≤0.1≤0.05
Hardness (Mohs)≥8≥8.5
Sizemm1–501–50

Remark: Custom specifications are available upon request.


   Applications


  • Mineral Processing: Grinding of ores, concentrates, and tailings

  • Metallurgical Industry: Slag grinding, metal powder processing, and refining operations

  • Cement & Building Materials: Raw material and clinker grinding

  • Mining Industry: High-efficiency grinding for various minerals

  • Steel & Non-Ferrous Metals: Auxiliary grinding media for metallurgical processes


   Packaging & Storage


Available in 25 kg bags, 1-ton jumbo bags, or customized packaging
Moisture-proof inner lining for protection during transportation
Store in a dry and ventilated environment to prevent moisture absorption


   FAQS


Q: Does it support customized production?

A: Yes, particle size distribution, packaging and special indicators can be adjusted according to needs.

Q: How to pack and ship?

A: Moisture-proof woven bags or ton bags;Sea/air transportation, DDP, FOB,CIF and other trade terms are available.

Q: Can you provide samples?

A: Free samples of 1-2kg will be sent out within 3 working days.

Q: Do you guarantee safe and secure delivery of products?

A: Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge.


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