92% High alumina grinding media balls

Product Overview

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(1) Application


Alumina grinding media ball is mainly used in ceramic, glaze, paint, zirconia silicate, aluminum oxide, quartz, silicon carbide, talc, lime carbonate, kaolin, titanium and other materials grinding,  and mechanical equipment accessories.


(2) Properties


High density, high hardness, low wear loss, regular shape, impact resistance, corrosion resistance, etc.


(3) Chemical Property



92% Alumina Grinding Ball

Al2O3(%)

92±1

Fe2O3(%)

<0.25

SiO2(%)

≤5

Mohs hardness

9

Water absorption

<0.01

Bulk density(g/cm3)

>3.60

Wear loss(g/kgh)

<1.6

Crushing strength(3mm)

>1050N

Size

Ø0.5-60mm

Sphericity

>95%



75% Alumina Grinding Ball

Al2O3(%)

>75

Fe2O3(%)

<0.4

SiO2(%)

≤20

Mohs hardness

8

Water absorption

<0.01

Bulk density(g/cm3)

>3.15

Wear loss(g/kgh)

<1.6

Crushing strength(3mm)

>800N

Size

Ø0.5-13mm

Sphericity

>95%



60% Alumina Grinding Ball

Al2O3(%)

≥60

Fe2O3(%)

<0.6

SiO2(%)

≤31

Mohs hardness

7

Water absorption

<0.01

Bulk density(g/cm3)

>2.8

Wear loss(g/kgh)

<1.6

Crushing strength(3mm)

>600N

Size

Ø0.5-13mm

Sphericity

>95%



99% Alumina Grinding Ball

Al2O3(%)

≥99

Others(%)

<0.5

Mohs hardness

7

Water absorption

<0.01

Bulk density(g/cm3)

>3.90

Wear loss(g/kgh)

<1.6

Crushing strength(30mm)

>55000N

Size

Ø0.5-13mm

Sphericity

>95%


(4) Standard Dimension


ø0.5-1mm, ø1.5mm, ø2mm, ø2.5mm, ø3mm, ø3.5mm, ø4mm, ø5mm, ø6mm, ø8mm, ø10mm, ø13mm,

ø15mm, ø20mm, ø30mm, ø40mm, ø50mm, ø60mm


(5) Package


Different package as to meet different customer’s requirements.

Wooden Crates              Drum          Plastic Pallet         Bulk Packing


FIRSTAR CORPORATION

STRICT INTERNATIONAL STANDARD (ISO) CERTIFICATION

Established a global quality management and environmental management system.

Passed the international standard certification established by the International Organization for Standardization (ISO). After a strict and systematic international review process, it is proved that the products and services provided to customers are strictly maintained.

ISO 9001 International Standard For Quality Management

Our Quality Management System is managed to consistently meet the needs of our customers with the highest global quality.

ISO14001 Environmental Management System Certification

Establish a world-class green management system to minimize harmful environmental factors and demonstrate that the energy, resource consumption and regeneration of our products are effectively managed.

ISO 45001 Occupational Health and Safety Management System Certification

ISO 45001 Occupational Health and Safety Management System evolved from OHSAS18001 Occupational Health and Safety Management System. This new standard is designed to help organizations around the world ensure the health and safety of their workers.

Applications

🏭

Cement Industry

Used in raw material mills and cement mills for efficient grinding of clinker and additives.

⛏️

Mining & Mineral Processing

Ideal for grinding ores, minerals, and metallurgical materials with high wear resistance.

Power Generation

Used in coal pulverizers and ash handling systems in thermal power plants.

🏗️

Building Materials

For grinding ceramic raw materials, pottery clay, and other construction materials.

💊

Pharmaceutical

Suitable for pharmaceutical ingredient grinding requiring contamination-free media.

🎨

Paints & Coatings

Used for pigment grinding and production of various coating materials.

Product Advantages

01

High Hardness & Wear Resistance

Vickers hardness ≥ 1100 HV, offering significantly lower wear loss compared to traditional steel balls.

02

Cost-Effective Solution

Longer service life means fewer replacements and reduced downtime for your production lines.

03

Low Abrasion & Contamination

Minimal material wear ensures product purity and prevents contamination during grinding processes.

04

Precision Manufacturing

Advanced isostatic pressing technology ensures uniform density and consistent quality in every ball.

05

Custom Sizes Available

We produce balls from Ø 1mm to Ø 100mm, with custom sizes available to meet your specific requirements.

06

Global Shipping & Support

Fast worldwide shipping with professional technical support from our engineering team.

Package Our Factory Technology Equipment Professional Service Team

Interested in our products? Get a quote today.

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