Caleva Blog

Which extrusion die do I need?

How do I select the right extruder die to get the size of pellets that I need?   There is no simple answer to this question as it depends on the characteristics of your formulation and the size of the pellets you require.

One of the key factors (but not the only factor) that determines the diameter of the final dry pellet is the diameter of the hole in the extruder die. For example, if you are...

A visitor to Caleva uses innovative Caleva technology to help investigations into the control of leaf cutting ants in Costa Rica

Ms Catherine Jimenez from the Laboratorio do Biotechnologia, Universidad de Costa Rica is working in collaboration with a company to produce a novel ant bait for use against a major agricultural pest.

The requirements for the study was to have available a laboratory extruder that would be able to produce extrudate not only of different diameters but also of different densities. Using a...

Biomation visit to Caleva

Our long-time friend and partner Mr Moritz Schlotterbeck of BIOMATION Wissenschaftliche Geräte GmbH visited Caleva yesterday to discuss our work together in the pharma and catalyst fields, and in particular an exciting new opportunity in a development using activated carbon and the processes of extrusion and spheronization.  We also discussed a joint presentation of our variable density...

How can I be sure that the trials and development work that I do will give me comparable results when I need to scale up to production sizes?

Scale up of the spheronization process is relatively well known and understood. All of the Caleva extrusion and spheronization equipment is designed with scale up in mind.Our range of screw extruders have the ability to modify the density of your extrudate when this is important.
  • The smallest extruder we offer is the Caleva Multi Lab (CML) with an extruder attachment designed to work with...