Sintered Yttria Stabilized Zirconia Beads by CHEMCO

The YSZ  (Yttria Stabilized Zirconia) precursor material of our YTZP beads is proudly produced by ourselves in large and homogenous batches!


Zirconia Beads, YTZP

High Density Beads
Type: YTZP

(6.0 g/cc)

Zirconia Beads, Partially Stabilized with Yttria, Sintered


YTZP  0.1 - 0.2 mm

[ Photograph ]

YTZP yttria zirconia beads are made of high-grade and nanometre Yttria Stabilized Zirconia (YSZ) which is proudly produced by our own facility in large and homogenous batches. This advanced precursor material guarantees excellent mechanical properties, outstanding wear resistance and good corrosion resistance. This high density bead is used to achieve maximum milling results at minimum product contamination rates.

Until now, CHEMCO® YTZP zirconia beads are successfully being used in all modern types of mills, which include vertical mills, horizontal mills, agitated media mills, stirred media mills, such as IsaMill, Metso Vertimill®, Metso SMD, FLSmidth® VXPmill, OUTOTEC HIGmill®, HOSOKAWA ALPINE agitated media mills, NETZSCH mills, Buhler bead mills, DYNO® mills, CMC Supermill PLUS®, 'Red Head' vertical media grinding mills, Niemann Kreis-Basket-Mill®  Getzmann bead mill & basket mill, Vollrath bead mill, HCP Immersion mill, IEC basket mill & bead mills, just name of a few...


  • High density media ideal for high energy mills, maximizing throughput and productivity

  • High fracture toughness and high wear resistance minimize the contamination of beads during high speed milling

  • At least 15% superior to Ceria Stabilized Zirconia medias in wear rate, proved by many tests

Main Applications

YTZP yttria zirconia beads can be used in milling and dispersion of following materials, just name a few:

  • Bio-tech (DNA, RNA & protein extraction and isolation)

  • Chemicals including Agrochemicals e.g. fungicides, insecticides and herbicides

  • Coating, paints, printing and inkjet inks 

  • Cosmetics (Lipsticks , Skin & sun protection creams)

  • Electronic materials and components e.g. CMP slurry, ceramic capacitors,  lithium iron phosphate battery

  • Food

  • Minerals e.g. TiO2, Calcium Carbonate and Zircon

  • Pharmaceuticals

  • Pigments and dyes

Some other applications, just name a few:

  • Flow distribution in process technology

  • Vibro-grinding and polishing of jewelrys, gemstones & aluminum wheels

  • Sintering bed with good thermal conductivity, can sustain high temperatures

Chemical Composition

Zirconium Oxide ( ZrO2 )

Yttrium Oxide ( Y2O3 )


94.6 ± 0.2%

5.2 ± 0.2%

0.2 ± 0.05%

Properties *

Density ( g/cc )

Bulk density ( kg/l )

Hardness ( HV5 )

Mohs' hardness

Breaking load (KN)


6.0 ( ± 0.05 )


1306  ( 2mm Bead )


> 1 

White  (pearl sheen)

* Figures are reference values

Standard Sizes (∅,mm ) *



0.3 - 0.4

1.4 - 1.7


0.4 - 0.6

1.5 - 2.0

0.08 - 0.13

0.6 - 0.8

2.0 - 2.5

0.1 - 0.2

0.8 - 1.0

2.6 - 3.3

0.2 - 0.3

1.0 - 1.2

3.5 - 4.5

0.2 - 0.4

1.2 - 1.4

4.5 - 5.5


8.0 - 9.0

9.5 - 10.5

11.5 - 12.5

* Other sizes can be customized

CHEMCO Ceramic Beads

Type: YTZP

Last updated : 27 Oct 2021


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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