> ALUMINA
GRINDING BALL

> THERMAL CARRIER,
CATALYST ALUMINA BALL

> ZIRCONIUM
OXIDE BEADS

> ZIRCONIUM
SILICATE BEADS




ALUMINA GRINDING BALL

APPLlCATION

It's widely used a process of grinding,mixing,dispersion.
    ・ Engineering Ceramics ・ Ceramics Capacitor ・ Tiles ・ Sanitaryware ・ Porcelain ・ Pigments ・ Enamels ・ Cement ・ Abrasive Compounds etc.
    Ceramics Industry.
Other fields would be Paints ・ Chemicals ・ Electronics ・ Plastics.


PROPERTIES

We are adopting the roll granulation method for these products.

  1. The high density and almost perfect roundness with smooth surface for higher grinding efficiency.
  2. The excellent wear resistance,higher impact strength to save your running cost and less contamination.
  3. The products have variety of quality and media size to choose the most suitable grinding condition.

ALUMINA GRINDING BALL SPECIFICATION

Type M SW SD L AL9
Alumina Alumina Alumina Alumina Pure-Alumina
Usage Exclusive use for
"Wet"grinding
WET GRINDING WET GRINDING
DRY GRINDING
Exclusive use for
“DRY“GRINDING
Usage for
PURE GRINDING
Application Beads / Balls Only Balls Only Balls Only Balls Beads / Balls
Standard Size (mmφ) 0.5-30 20-50 20-50 20-50 0.3-20
Composition Al2O3 (%) 93 92 92 91 99.5
SiO2 (%) 5 5 5 8 MgO 0.4
Specific Gravity (g/cm3) 3.61 3.61 3.59 3.50 3.80
Porosity (%) 0.0 0.0 0.0 0.0 0.0
Vickers Hardness 1250-1300 1200 1150 1000 1300
Flexural Strength (MPa) 380 370 350 330 350
Breaking Strength (Kgf/Pcs) 1000 1000 1000 850 1100
Wear Rate Wet method (%) 0.22 0.25 0.30 0.60 0.60
Dry method (%) - - 0.25 0.52 0.45
Test Condition Flexural Strength ISO 14704 : 2000
Breaking Strength of Ball Test Ball : 8mm with compression Test Machine, Cross Head Speed : 0.5mm/min
Wet Method
of Wear Rate
with Balls
Alumina Ball Mill   Mill Size : 1,500cc,Media size : 20mm, Media feed : 1,000gr(Packing Volume=30% )
Water Feed : 1,000cc Grinded Material Feed : Al2O3 Powder 800gr
Mill Speed : 83rpm,Grinding Test time : 50hrs
Dry Method
of Wear Rate
with Balls
Alumina Ball Mill   Mill Size : 2,200cc,Media size : 20mm,Media feed : 2,200gr(Packing Volume=50%)
Water Feed / Grinded Material Feed : None
Mill Speed : 90rpm,Grinding Test time : 96hrs

THERMAL CARRIER, CATALYST ALUMINA BALL

APPLlCATION

Regenerative burner, Chemical catalysis

ALUMINA BALL T - TYPE SPECIFICATION

Composition Al2O3 (Wt%) 99.3
SiO2 (Wt%) 0.3
Others (Wt%) 0.4
Physical Property Specific Gravity (g/cm³) 3.4 (min)
Bulk Density (g/cm³) 2.0
Porosity (Wt% max) 7
Absorb Water Ratio (Wt% max) 3
Thermal Resistance (SK35) 1,790℃
SIZE
Breaking Strength (Kgf/Pcs)
3/4" (19 mm) 1,800 (min)
1/2" (13mm) 700 (min)
3/8" (10 mm) 400 (min)
1/4" (6 mm) 200 (min)

Zirconium Oxide Beads

APPLlCATION

Pigments, Paint/Ink, CaCO?, Titanium Dioxide for such kind of minerals Mixing, Grinding, Dispersing


PROPERTIES

Our "ZO"are produced by Cerium Stabilized Zirconium Oxide with our own technology and experiences.
It would be COST effective high density microgrinding media.
"ZO"beads can be had a excellent wear resistance according to "High" density and hardness both.
Also, ZO beads has ;
* Narrow beads size distribution and gives best grinding efficiency
* Suitable for grinding highly viscous materials / slurry
* Very high wear resistance reduce product contamination
* Best suited for Verticle and Horizontal sand mills, beads mills, basket mills
These performances could be helped to improve not only your efficiency of Grinding / Dispering process
but also could be reduced your electric consumption / production cost both.


ZO - Type (Cerium Stabilized Zirconium Oxide) SPECIFICATION

Composition ZrO2 (Wt%) 75
CeO2(Wt%) 23
Specific Gravity (g/cm3) 6.1
Bulk Density (g/cm3) 3.8
Hardness (HV5) 1200
Standard Size (mm) 0.1 0.2-0.4 0.4-0.6 0.6-0.8 0.8-1.0 1.0-1.2 1.2-1.4 1.4-1.6 1.6-1.8 1.8-2.0 2.0-2.5 2.2-2.8 2.7-3.3
Breaking Strength (kgf) - 5 15 30 40 80 120 150 180 250 270 300 400

ZO0810

ZO0810

ZO0810

ZO0810


Zirconium Silicate Beads

APPLlCATION

Pigments,Paint/lnk,CaCO3,Titanium Dioxide for such kind of minerals Mixing,Grinding,Dispersing


PROPERTIES

Our "ZS" beads are produced by Zirconium Silicate with our own technology and experiences ZS can be had a excellent wear resistance according to "High" density and hardness both.
Also"ZS" can replace from not only Zircon beads of course,but also Zirconia beads,Titanium beads,alumina beads,Glass beads as accepted.
The performance will help to improve your efficiency of Grinding / Dispersing process and reduce production cost.


ZS-Type (Zirconium Silicate) SPECIFICATION

Composition ZrO2 (Wt%) 63
SiO2 (Wt%) 32
Specific Gravity (g/cm3) 4.4
Bulk Density (g/cm3) 2.7
Hardness (HV5) 1100
Standard Size (mm) 0.1 0.2-0.4 0.4-0.6 0.6-0.8 0.8-1.0 1.0-1.2 1.2-1.4 1.4-1.6 1.6-1.8 1.8-2.0 3.0
Breaking Strength (kgf) - - 10 25 40 60 80 110 150 180 270
0.4-0.6

0.4-0.6

3.0

3.0


CONTACT US

For our new concept of grinding process,please contact us to receive our technical information.
By the best selection of HIRA's good quality of Alumina ball,you can reduce a running cost greatly.

HIRA CERAMICS CO.,LTD
HEAD OFFICE
356-1 HIGASHIYAMA HOKUSOGI-CHO
TOYOYA,AICHI-PREF. JAPAN
TEL +81-565-76-1138
FAX +81-565-76-3253
E-mail:fujioka.f@hiraceramics.co.jp