Alumina grinding balls we provided are of high strength, high density, well wear resistant and practicability.

 

Application: Suitable for ball mills, agitators, vibro-mills and sand-mills etc. widely used in industries of ceramic tiles, sanitay wares, zircon, kaolinite, refractories, paints, coatings, etc all.

We can provide two different kinds of balls formed by isostatic pressing or automatic rolling procedure according to the requirements of the customers.

 

Size range of the isostatic pressed balls: 40-80 mm

Size range of the rolling formed balls: 1-50 mm

D-70

Al₂O₃ wt%≥70

SiO₂ wt%≤25

Fe₂O₃ wt%≤0.35

Density g/cm³3.0

Abrasion, 0.3

Water absorption 0.1

Hardness 8

Compressing strength/ MPa 1500

 

D-85

Al₂O₃ wt%≥85
SiO₂ wt%≤15
Fe₂O₃ wt%≤0.3
Density g/cm³3.30
Abrasion, 0.2

Water absorption0.1
Hardness 8.5
Compressing strength/ MPa1700

 

 

D-92

Al₂O₃ wt%≥92
SiO₂wt%≤5
Fe₂O₃ wt%≤0.2
Density g/cm³3.60
Abrasion, 0.15

Water absorption0.1
Hardness 9
Compressing strength/ MPa2000

 

K-92
Al₂O₃wt%≥92
SiO₂wt%≤5
Fe₂O₃wt%≤0.2
Density g/cm³ 3.65
Abrasion, 0.1

Water absorption 0.1
Hardness 9
Compressing strength/ MPa 2000

 

K-95

Al₂O₃ wt%≥95
SiO₂ wt%≤5
Fe₂O₃wt%≤0.15
Density g/cm³ 3.7
Abrasion, 0.1

Water absorption0.1
Hardness 9.5
Compressing strength/ MPa2200