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Alumina ceramic beads
Alumina ceramic beads

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used for ultra-fine grinding of relatively soft non-metallic powder

Humo Company applied unique roll polishing technology, which ensures the sphericity and density of the product, and without cracking. The company applies advanced kiln sintering technology; and with a longtime of high temperature sintering, the wearing-resistance microcrystal structure has formed. The property stability during the procedure is ensured. The raw material with high-white degree, high finesse degree is applied in order to resist the pollution of the materials. We can select grinding medium with different density according to different grinding equipments and objects customers have. (And can also custom made the beads with needed density and specification required by customers).

ZMC alumina ceramic beads
Matching application:

Various kinds of grinders, especially large-scale grinders are used for grinding of the powder body with medium viscosity, solid content in the range of 40-70%.
Technical Parameter:

Product specificationproduct size (mm)
Chemical composition Al2O3+ SiO20.5~0.8
… ~30
various specification products
Specific Gravity 2.7g/ cm3
Bulk Density 1.75g/ cm3
Hardness  110~120
Whiteness (R457)≥93
Wearing rate% (per hour) 0.0032
(from 3~4mm beads,test by 4000r/min high-speed sanding mill)

Application range:

It can be used for ultra-fine grinding of relatively soft non-metallic powder such as Superfine CaCO3, kaolin, talc, etc. This kind of micro-beads on one hand can satisfy the above grinding of the nonmetal powder on the aspect of property; on the other hand, it has the advantage of lower price. It may be said decent product with reasonable price, and is the first choice for many ultra-fine grinding companies and grinding paint coating factories.

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