China 92% 99% Alumina Ceramic Grinding Balls 3mm 10mm 15mm 20mm 30mm 50mm manufacturers and suppliers

92% 99% Alumina Ceramic Grinding Balls 3mm 10mm 15mm 20mm 30mm 50mm

Short Description:

Alumina grinding ball has been widely used in ball mills as abrasive media for ceramic raw materals and glaze materials in ceramic factors, cement factories, enamel factories and glasswork owing to the extraordinarily high density, high hardness, high wear resistance. During the abrasive/grinding processes, ceramic aballs will not be broken, it will not comtaminate the materials to be grinded.

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Applications

1) Grinding ceramic ball is one ideal ball mill grinding media, it can keep the purity and improve the stability of grinded materials.
2) The alumina grinding ball have been widely used in ball mills as abrasive media for ceramic raw materials and glaze materials in ceramic factories, cement factories, enamel factories and glasswork.
3) The main features are high density, high hardness and strength, high wear resistance, thermal stability, corrosion resistance and non-pollution etc.
4) During the abrasive/grinding processes, ceramic balls will not be broken, it will not contaminate the materials to be grinded.
5) Type: According to the content of aluminum oxide: 60-70%, 65-75%, 95%.

Typical Characteristics

Specification	65Alumina Ball	75Alumina Ball	90Alumina Ball	92Alumina Ball	95Alumina Ball	99Alumina Ball
Al2O3(%)	≥65	≥75	≥90	≥92	≥95	≥99
Fe2O3(%)	≤0.5	≤0.5	≤0.1	≤0.1	≤0.1	≤0.1
Moh’s Hardness	8	8~9	9	9	9	9
Water Adsorption (%)	≤0.05	≤0.05	≤0.02	≤0.02	≤0.02	≤0.01
Density (g/cm3)	≥2.95	≥3.25	≥3.55	≥3.60	≥3.65	≥3.8
Crush Strength (MPa)	≥1650	≥1700	≥1900	≥2000	≥2250	≥2500
Abrasion Loss (%)	≤0.03	≤0.02	≤0.01	≤0.01	≤0.01	≤0.01

Appearance Demand

	High Alumina Grinding Balls	Medium Alumina Grinding Balls	Carbonized Alumina Grinding Balls
Color	White	White	Ash-black
Crack	Not Permission	Not Permission	Not Permission
Impurity	Not Permission	Not Permission	Not Permission
Foam hole	Above ф1mm not permission, size in ф0.5mm permit 3 balls
Flaw	Max. size in ф0.3mm permit 3 balls