The most extraordinary innovation arising from our design and development team is “pigment grinding”. It encompasses the monodisperse distribution of pigments in a fluid phases. For this, high amounts of energy input are necessary, and that generally can only be realized by contact grinding tools such as ball mills and roller mills. With our process we can accomplish equivalent or even better dispersal results, and can accomplish it in a reduced amount of time. With the symex Co-Twister, a special grinding specific tool set can be fitted to optimize this grinding and dispersing effect within the shear gap.

Advantages:

• No intermediate process steps on ball mills or roller mills – all processes including pigment grinding are accomplished within the main mixing vessel
• No ancillary equipment to clean
• The Co-Twister cleans itself with its automated CIP/SIP
• Pigment losses during intermediate process steps are eliminated (cost reductions)
• No contamination in the product from wear particles from ball mills and roller mills.
• Due to a better (homogeneous) dispersion of pigments, uniform colour effects can be accomplished while using a minimum amount of pigment.
• Final colour matching is easier and more consistent, as colour variations from pigment losses in ancillary operations is eliminated.
• Increased operator safety – no more moving by hand of hot oil grinds between the ancillary ball or roller mill process to the main mixing vessel (and reduced personal protective gear requirements also).