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Variable Density Extrusion® for the laboratory (VDE®)
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Variable extrudate density with either radial or axial extrusion dies
Laboratory extruders can generally offer different extrusion hole diameters but only the Caleva Variable Density Extruder (VDE)® can offer variable hole diameters and variable hole depths in both axial and radial extrusion.
Extrusion hole diameters from 0.2 mm to 2.0 mm and hole depths from 0.5 mm deep to 4 mm deep on radial extrusion and 8 mm on axial extrusion. Optimal length to diameter ratio can be selected to produce the ideal extrusion density to suit your application. This unique ability of the VDE to offer many hole diameter and depth combinations allows the evaluation at controllable of different extrudate densities for your formulations.
There is nothing else available that gives this flexibility and ease of use in a single piece of equipment.
The VDE from Caleva, for the development of pellets by Extrusion and Spheronization. The best, most flexible and most productive laboratory extruder available.
Extrusion rates up to 1 kg batches in 2 minutes with a radial screen and 1 kg batches in 3 minutes with an axial screen
Increasing extrudate density can help to reduce patient dosing frequency by increasing product density.