Shandong, China
Business Type:
Trading Company
Main Products:
Number of Employees:
Year of Establishment:
Plant Area:
110 square meters
Average Lead Time:
Peak season lead time: within 15 workday
Off season lead time: within 15 workday
Sample Available

Alumina Ball, Ceramic Ball, Grinding Ball manufacturer / supplier in China, offering High Quality Ceramic Alumina Ball, Abrasives & Refractory Raw Material Grain Brown Fused Alumina with Al2O3 95% Min, High Purity Raw Material Brown Fused Alumina Price and so on.

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High Quality Ceramic Alumina Ball

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Min. Order / Reference FOB Price
1 Ton US $600-900/ Ton
Transport Package: According to Customer′s Requirements
Payment Terms: L/C, T/T, Paypal, Western Union
Material: Alumina
Content: >90%
Usage: Grind
Processing Type: Rolling Type
Size: Small
Color: White

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Basic Info

Model NO.: alumina ball
Customized: Customized
Diameter: According to Customers′ Requirement
Trademark: Natural
Specification: SGS
Origin: Shandong

Product Description

High Quality Ceramic Alumina Ball
Performance of 92 Grinding Ball Lining Brick:

siO2Fe2O3Bulk densityCrush strengthWater absorptionRockwell hardnessSelf abrasionEquivalent abrasion
≥ 92%≤ 6%≤ 0.05%3.55 g/m3≥ 2000mpa≤ 0.02%≥ 85≤ 0.2 g/≤ 0.1‰

Impact Resistance and Abrasion Test Method of Wear-resisting Alumina Ball:

1. Method Principle:
    The method assesses the impact property of ball by impacting and grinding alumina ball in polyurethane grinding tank according to specified conditions, and expresses wear resistance of alumina ball by unit time abrasion.

2. Grinding Tank:
    The grinding tank is polyurethane tank, and the size is 200*220mm.

3. Wear-resisting Impact Testing Machine:
    Load 4kg alumina ball samples into grinding tank, and continuously operate at the speed of 80 rpm.

4. Sample Preparation:
    Take 4kg alumina ball with qualified appearance quality and outline dimension, put it into grinding tank, add 4kg water, grind for 24h2 on the wear-resisting impact testing machine at the speed of 80 rpm, and wash and dry the sample for standby.

5. Test Steps:
    Weigh (m1) the sample treated according to the step 4 by a 1g libra.
    Put the above sample into grinding tank, add water with the same weight, seal the cover, put it into the wear-resisting testing machine, and make the grinding tank grind for 24h2 at the speed of 80 rpm.
    Take the sample from the grinding tank out, clean, dry and weigh (m2) the sample.
    Measure average diameter (D) of 10 balls by rule.

6. Result Presentation:
    If the ball has no crack or breakage after impact and abrasion test, it shows that it has qualified impact resistance.
    EWT=KD (m1-m2)/ m1
    EWT: Equivalent abrasion ‰
    K: Correction factor 4.17*10-4 mm-1
    D: Average diameter of ball: mm
    m1: Weight of sample before grinding g
    m2: Weight of sample after grinding g

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