Our unique ZTA-W beads & balls enjoy 400%+ less wear than any High Alumina grinding media in the market saving your grinding costs !
Products
Zirconia Toughened Alumina Beads & Balls ZTA-W
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
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Available in big sizes balls up to ∅70 mm, which suits wet-grinding in ball mills
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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
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The product's similar density enables it to substitute High Alumina media very well
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Superior performance-price ratio saving users' cost
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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:
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Ceramic body, glaze and zircon
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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 ( HV10 ) *
Mohs' hardness
Porosity
Flexural Strength ( MPa ) *
Breaking Strength ( Kgf/Pcs ) *
Water Absorption
Color
3.65
2.3
1230
9
0 %
≥ 380
1000 ( 8mm bead )
< 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
16 - 18
3.5 - 4.5
9 - 11
18 - 20
4.5 - 5.5
11 - 13
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