Sintered bauxite

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Trade name

Starball

Description

This product is a hard and unyielding abrasive, available in spherical shapes. Starball is made by sintering fine Bauxite ore.  Bauxite is the main ore used to produce Aluminium and consists of 75% of Aluminium Oxide.

Application

Often used as to replace brown fused aluminium oxide, it can be used with conventional abrasive blasting equipment air-compressed pressure and suction jet-blasting equipment.   Sintered bauxite is also used for the following applications:  antiskid flooring, carving, etching, finishing, grinding, lapping, polishing, rock tumbling, lapidary, sandblasting, slurry mixes, surface preparation and tumbling.

Advantages

Exceptionally well-suited for use with air-compressed jet-blasting equipment, both pressure and suction.

Technical data

  • Hardness: 9 Moh scale
  • Specific weight: 3.6 g/cm³
  • Bulk weight: 2.08 kg/l
  • Shape: Round
  • Storage: Dry & Sheltered
  • Packaging: 25 kg paper bags

Typical chemical analysis

  • AI2O3: 76.3%
  • SiO2: 6.20%
  • TiO2: 1.95%
  • Fe2O3: 14.1%
  • CaO: 0.35%
  • K2O: 0.49%


Sieving range

  • Grade: 8/16, Size range:  1200 - 2380 microns
  • Grade: 12/20, Size range: 853 - 1680 microns
  • Grade: 16/30, Size range: 599 - 1200 microns
  • Grade: 20/40, Size range: 422 - 853 microns
  • Grade: 30/50, Size range: 297 - 599 microns
  • Grade: 35/70, Size range: 500 - 21 microns