Our unique ZTA-W beads & balls enjoy 400%+ less wear than any High Alumina grinding media in the market saving your grinding costs !

Zirconia Toughened Alumina Beads & Balls, ZTA-W

Medium Density Beads & Balls

Type: ZTA-W

(3.65 g/cc)

Zirconia Toughened Alumina Beads and Balls, Sintered

(Invented for Wet Grinding)

ZTA-W beads & balls are unique products, developed by CHEMCO expert R&D team after several years of research and experiments. We adopt our experienced roll / granulation method for forming this type of products to make it specifically suitable for wet grinding applications. Proved by many comparison wear rate tests, ZTA-W shows 4 - 30 times better in wear resistance than various quality High Alumina ( 90 - 92 % Al2O3 ) grinding media in global market, and its similar density enables this product to substitute High Alumina media very well. 

Until now, CHEMCO® ZTA-W Zirconia Toughened Alumina Beads & Balls are successfully being used in many modern types of mills, which include vertical mills, horizontal mills, agitated media mills and stirred media mills, such as IsaMill, Metso Vertimill®, Metso SMD, FLSmidth® VXPmill, OUTOTEC HIGmill® and many conventional ball mills.

Features

  • Available in big sizes balls up to ∅70 mm, which suits wet-grinding in ball mills

  • At least 4 times better in wear resistance than “the best” High Alumina ( 90 - 92 % Al2O3 ) grinding media in the world market, proved by many tests

  • The product's similar density enables it to substitute High Alumina media very well

  • Superior performance-price ratio saving users' cost

  • This is the grinding media recommended by us for fine and ultra-fine grinding gold, silver, platinum, lead, copper and zinc sulfide

Main Applications

ZTA-W beads/balls are specifically suitable for wet grinding of following materials in ceramic and mining industry, just name a few:

  • Ceramic body, glaze and zircon

  • Gold, silver, platinum, lead, copper and zinc sulfide

Chemical Composition ( Typical ) *

Zirconium Oxide ( ZrO2 )

Silica ( SiO2 )

Aluminium Oxide ( Al2O3 )

Remainder

2%

4%

90%

4%

* Figures are reference values

Properties

Density ( g/cc ) *

Bulk density ( kg/l ) *

Hardness ( HV )

Mohs' hardness

Porosity

Flexural Strength ( MPa )

Breaking Strength ( Kgf/Pcs )

Water Absorption 

Color

3.65

2.3

≥ 1250

9

0 %

≥ 380

≥ 1000

< 0.01 %

White

* Typical values

Wear Rate 

Wet Grinding

0.03 %

Test Condition

a Lab Ball Mill (Jar Mill) Size: 7.6 L, Media Size: 40 mm,

Media Feed: 4 kg (Media Filling Volume =23%),

Water Feed: 4 L, Material Feed: 3 kg Zircon sand,

Mill Speed: 90 rpm,

Grinding Test Time: 24 hrs

Standard Sizes (∅,mm ) *

Beads

2.0 - 2.5

5.5 - 6.5

12 - 14

2.5 - 3.0

6.5 - 7.5

14 - 16

3.0 - 3.5

7.5 - 8.5

3.5 - 4.5

9 - 11

4.5 - 5.5

11 - 13

16 - 18

Balls

20 ± 1

45 ± 2

26 ± 1.5

52 ± 2

32 ± 1.5

63 ± 2

35 ± 2

70 ± 3

40 ± 2

* Other sizes can be customized

DATA SHEET

Last updated : 22 July 2020

18 - 20

About CHEMCO

CHEMCO is a world-class ceramic beads and balls producer. All our products' formulations contain more or less Zirconia (ZrO2), which is an advanced ceramic material with a title of "Ceramic Steel". This single material offers the traditional ceramics benefits of hardness, wear and corrosion resistance. We can supply various densities (Light, Medium & High) media with the complete range of sizes (0.01 - 70 mm), which suit different fine-grinding (milling & dispersion) as well as impact surface treatment applications. We've been proudly exporting our products from China to more than 45 different countries around the world!

CHEMCO has a dedicated R&D department manned by committed scientists and technicians. As a team they constantly strive to explore and innovate the new value of products. The company has also established a complete quality control system and maintained an individual department controlling the products' quality. Equipped with a complete set of modern analysis instruments and always executing higher standard in the industry, our products quality can get effective assurance.

CHEMCO is ISO 9001:2015 certified by QA International

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