The milling process
A bead mill is needed when the required dispersion result cannot be achieved on a high‒speed dissolver. A bead mill will further break down the solid particles and improve the dispersion result.
- Wetting the surface of the solid particles
- Mechanical break down of solid particles to a smaller size
- Stabilization of smaller particles generated during the milling process against reagglomeration
A bead mill differs from the high‒speed dissolver used to prepare the millbase by using small ceramic beads to mechanically break down of solid particles and improve the dispersion result. A bead mill consists of a milling chamber containing small ceramic beads and a milling rotor that is driven by a motor. The product is pumped through the milling chamber and milled by the mechanical action of the beads as they move against each other.
The dispersion result is affected by the speed of the milling rotor, the size of the beads and the speed at which the product is passed through the mill. A bead mill can be used to disperse the product in either a single pass, or several individual passes, or be set up to continuously circulate the product which is known as re‒circulation milling.
DISPERMAT® and TORUSMILL®
Durable and highly efficient dispersers, mixers, stirrers, basket mills and bead mills in operation worldwide
VMA‒GETZMANN develops, produces and markets high quality dispersers, mixers, stirrers, bead mills and basket mills. The innovative combination of technology and design as well as high quality are characteristic of our products. Of course, our mixing, dispersing and grinding equipment have integrated safety devices according to the EC Machinery Directive 2006/42 / EC.
Working together with the client our specialists optimize the essential process engineering and the most suitable system solution. Our involved development and design team comes with innovative ideas and long time experience in the mixing, dispersing and grinding technology. We produce with the most modern machine tools and therefore we guarantee a high standard of quality. We prove our expertise and reliability by also having an excellent after sales service.
Our experience ‒ Your advantage
Please visit us in our excellently equipped laboratory and pilot plant for a trial with your own products. We would be pleased to show you the impressive work section of our dispersing, mixing, stirring, homogenizing and fine grinding systems DISPERMAT® and TORUSMILL®. Our skilled engineers are available at any time for personal advice.