Thermo Electron Corp.'s process instruments division showed at NPE 2006 its latest laboratory-scale, co-rotating twin-screw extruder for markets including polymer color concentrates, pharmaceuticals, paint and chemical compounding.
In dealing with color needs, resin processors ``can do small batches and clean the machine easily,'' said Chris Green, managing director of the division's Stone, England, manufacturing site.
The Prism TSE 24-millimeter MC compounding extruder can provide small-scale continuous processing for research and development or production applications. The base price is $100,000.
For ease of cleaning, the clamshell-style barrel opens for access to the screws, and the die swings away. ``Cleanliness is paramount from one run to the next,'' Green said at the show, held June 19-23 in Chicago.
The replaceable barrel liners can be made of hardened materials to handle aggressive applications.
The Prism line, now owned by publicly traded Thermo Electron, started with a 16mm extruder in 1991 and added a 24mm version in 1993. Prior to the improvements, more than 450 units had been sold, Green said.
Thermo Electron is based in Waltham, Mass.