Milling beads

Milling beads made of Glass and Zirconium Oxide

Glass or zirconium oxide milling beads are used for extremely fine dispersion and milling in horizontal, vertical and basket mills. Glass beads are generally inexpensive and the required fineness of grind can frequently be achieved with them.

If the required dispersion result cannot be achieved using glass beads, the use of zirconium oxide beads is highly recommended. With their bulk weight of 3.7 kg/litre, zirconium oxide beads have high kinetic energy and very good dispersion efficiency. Due to the zirconium oxide beads being cerium stabilized, they have a high fracture resistance and excellent abrasion resistance.

Comparison of milling beads:


	Glass milling beads unleaded	Cerium stabilized Zirconium Oxide milling beads	Yttrium stabilized Zirconium Oxide milling beads

Colour	clear-transparent	brown	white
Specific weight	2.5 kg/l	6.1 kg/l	6.0 kg/l
Bulk weight	1.5 kg/l	3.5 kg/l	3.6 kg/l
Vickers hardness (HV10)	400	1150	1150
Moh hardness	5+	9+	8+
Durability in hours	up to 500	up to 4000	up to 6000

Available milling beads

Glass milling beads unleaded	Cerium stabilized Zirconium Oxide milling beads	Yttrium stabilized Zirconium Oxide milling beads
0.50 - 0.75 mm	0.4 - 0.7 mm	0.2 - 0.3 mm
1.00 - 1.25 mm	0.7 - 1.2 mm	0.2 - 0.4 mm
1.25 - 1.55 mm	1.2 - 1.7 mm	0.3 - 0.4 mm
1.55 - 1.85 mm	1.7 - 2.4 mm	0.4 - 0.5 mm
1.70 - 2.00 mm	2.4 - 2.8 mm	0.4 - 0.6 mm
2.00 - 2.30 mm	2.8 - 3.3 mm	0.6 - 0.8 mm
2.30 - 2.60 mm		0.8 - 1.0 mm
2.85 - 3.30 mm		1.0 - 1.2 mm
		1.2 - 1.4 mm
		1.4 - 1.6 mm
		1.6 - 1.8 mm
		1.8 - 2.0 mm
		2.0 - 2.5 mm
		2.6 - 3.3 mm

Different bead sizes, materials or fractions are available on demand. We would like to advise you.
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We are pleased to show you the impressive business activities of our dispersing and milling systems DISPERMAT® and TORUSMILL®. Please visit us in our extensive fitted laboratory and pilot plant for testing your own product without any obligation.

Our experienced engineers are prepared to support you at any time.

Call-through +49 2296 - 80355
Email Dipl.-Ing. Adam Snietka

Exhibitions 2012

Russia
14. - 17.02.2012
Stroisib, Novosibirsk

India
23. - 25.02.2012
Paint India, Bombay

United Arab. Emirates
12. - 14.03.2012
Middle East Coatings Show, Dubai

Russia
12. - 15.03.2012
Interlakokraska, Moscow

Ukraine
17. - 20.04.2012
Interfarba, Kiev

Exhibitions 2012

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VMA-GETZMANN GMBH
Verfahrenstechnik

Euelerhammerstraße 13
D-51580 Reichshof
Germany

Phone: +49 2296 8030
Fax: +49 2296 80333
Email: info@vma-getzmann.de

Local time in Germany:
07.02.2012 03:23

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