Alumina grinding media

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1. Description of  Products:

 

Alumina ball is widely used in Ceramic industry,cement industry, paint industry, Color industry, 

chemical industry,pharmaceutical industry, coating industry and mining industry. The advantages 

are: high hardness, good toughness, high density,good erosion resistance, regular shape etc.  

 

2. Technical Datas of Products:

 

Item	70	80	90	93	95
Specific Gravity g/cm3	2.95~3.02	3.33~3.36	3.55~3.60	3.63~3.68	3.70~3.75
HardnessMohs Scale	8.5	8.5	9	9	9
Anti-Compression Strength MPa	≥1700	≥1800	≥1950	≥2000	≥2250
Wear Loss%	≤0.018	≤0.014	≤0.010	≤0.008	≤0.005
Color	Yellowish	White	White	White	White

 

3. Standard Sizes: 

Dia 1mm - Dia.25 mm            (formed by rolling method).

Dia.30mm                            (formed by rolling method or by isostatic pressure).

Dia. 40 Dia.50 Dia.60 Dia.70  (formed by isostatic pressure).

 

4. Advantages

(1) Core Technology:

Using the global best alumina grinding ball production technology originated from our over 12 

years working experience as well as our frequent technical research. This core technology 

enable us to  produce high quality products continuously to satisfy the requirement of our 

global partners. 

(2) Production system&equipment:

we are using high temperature roller kiln (totally 2 kilns with each 250 meters length and

Max.1650 degree centigrade) to sinter the alumina ball, which enable us to producer higher

and more stable quality alumina ball due to the temperaturedifference of roller kiln is much 

smaller than that of tunnel kiln used by other manufacturers. The prominent features of 

alumina ball sintered by roller kiln are : 

1) higher density  2) lower wear loss  3) more stability of quality  

(3)Important Technical data:

We are producing our alumina ball with the following standard: 

Technical Data	High Alumina Ball	Medium Alumina Ball
Alumina Content	93% Min.	68% Min.
Density	3.63-3.67	2.95 Min.
Wear Loss Rate (lab testing)	0.008%-0.01%	0.018%-0.02%

The above mentioned technical data plays the most important role in the during the production of ceramic and also the most important factors to the reduction of production costs.  

Alumina grinding media