High-Performance 95% Alumina Ceramic Grinding Balls for Mills

Product Description

95% 92% Alumina Ceramic Ball as Mill Grinder

Alumina ceramics with high strength, hardness, wear resistance, corrosion resistance, good thermal conductivity, high insulation, low dielectric loss, dielectric constants between 8-10. Electrical properties with temperature and frequency stable, especially when the content is more than 95.5% at frequencies up to 10 Hz (HZ) dielectric loss <0.001, excellent performance.

Size: 1mm, 3mm, 6mm, 9mm, 13mm, 16mm, 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 95mm

1: 92% Alumina content series

A) Al2O3 ≥ 92%
B) Water absorption <0.01%
C) Bulk density ≥ 3.63 g/cm3
D) Mosh hardness: 9
E) Color: White

2: 95% High-alumina grinding ball

A) Al2O3 ≥ 95% Sio2<3.8%, others: ~3%
B) Water absorption <0.01%
C) Bulk density ≥ 3.7 g/cm3
D) Mosh hardness: 9
E) Color: White
F) self abrasion loss: <0.008%

3: 68% Medium alumina grinding ball series:

A) Al2O3: 65%~75%
B) Bulk density ≥ 2.93g/cm3
C) Mosh hardness: 8 grade
D) self abrasion loss: 0.01
E) Color: White or brown
 

Ceramic Item	Al2O3	SiO2	Others
92% ball	92%	<6.5%	~2 %
95% ball	95%	<3.6~3.7 %	~2%
68% ball	68%	<21.2%	~10.18%

B.Physical Analysis

Item	Alumina Content	Mohs hardness	Abrasion loss   (24hours)	Density (g/cm3)	Water absorption
92% ball	92%	9	<0.01%	3.6	<0.01%
95% ball	95%	9	<0.01%	3.74	<0.01%
68% ball	68%	7-8	<0.03%	3	<0.02%
Producing way ::cool-isostatic pressing , or by rolling

C. Size :

Diameter (mm)	D1-3	D6/8/10/13/16/20/25	D30/40	D50/60/70
Tolerance (±mm)	0.5	1	2	3