Alumina grinding ball,Alumina ball,Alumina
SGS Report available
Large capability of monthly output
Best price
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.
Our alumina grinding is high grade milling media made by advanced cool isostatic pressing technology and fired at high temperature.
Calcined alumina, aluminium oxied for making ceramic
AI2O3 >99.5%
Na2O <0.3%
Fe2O3 <0.024%
SiO2 <0.019%
TiO2 <0.008%
L. O. I <0.3%
Density ≥ 3.93G/cm3
A-Al2O3 >93%
Medium Particle Size(D50) 75um
Ultimate Crystal Size 2-4um
BET 0.5-0.6m2/g
2. Technical Datas of Products:
Item | OK70 | OK80 | OK90 | OK93 | OK95 |
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) Supplying Capacity:
Due to the superior production system, we are manufacturing approximately 300 Ton medium and
high alumina ball each day, which is considered to be 30% of the total global annual consumption
and enable us to deliver to our customer in shortest time as per requirement.
(4)Important Technical data:
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
