China Wholesale Magnet laundry ball Manufacturers Suppliers – Alumina Grinding Ball used in ball mill – Zhongtai

Product

Al2O3 %

Bulk density g/cm2

Water absorption

Mohs hardness scale

Abrasion loss %

Color

High alumina grinding balls

92

3.65

0.01

9

0.011

White

Medium alumina grinding balls

65-70

2.93

0.01

8

0.01

Yellow-White

Appearance demand

High alumina grinding balls

Medium alumina grinding balls

Crack

Not permission

Not permission

Impurity

Not permission

Not permission

Foam hole

Above 1mm not permission, size in 0.5mm permit 3 balls.

Flaw

Max. size in 0.3mm permit 3 balls.

Advantage

a) High alumina content
b) High density
c) High hardness
d) High wearing feature

Warranty

a) By national standard HG/T 3683.1-2000
b) Offer lifetime consultation on problems occurred

Items

Proportion

Items

Proportion

Al2O3

65-70%

SiO2

30-15

Fe2O3

0.41

MgO

0.10

CaO

0.16

TiO2

1.71

K2O

4.11

Na2O

0.57

Spec.(mm)

Volume(cm3)

Weight(g/pc)

Φ30

14 ± 1.5

43 ± 2

Φ40

25 ± 1.5

100 ± 2

Φ50

39 ± 2

193 ± 2

Φ60

58 ± 2

335 ± 2

Items

Proportion

Items

Proportion

Al2O3

≥92%

SiO2

3.81%

Fe2O3

0.06%

MgO

0.80%

CaO

1.09%

TiO2

0.02%

K2O

0.08%

Na2O

0.56%

Spec.(mm)

Volume(cm3)

Weight(g/pc)

Φ30

14 ± 1.5

43 ± 2

Φ40

25 ± 1.5

126 ± 2

Φ50

39 ± 2

242 ± 2

Φ60

58 ± 2

407 ± 2