DÜSSELDORF, GERMANY (Dec. 11, 4:25 p.m. EST) — Berstorff GmbH said a rectangular barrel housing on the new UTX series compounding extruder can be opened quickly, for easier barrel changes.
The quick-opening feature is especially important for laboratory extruders and pilot lines, the company said.
Berstorff claims the C-clamp arrangement provides time savings of as much as 70 percent over the earlier, bolted-flange connections. When just one section has to be replaced, the processing section of the extruder can be dismantled without losing the pretensioning of the other barrel sections.
UTX machines are part of Berstorff's ZE line of high-torque, twin-screw extruders. Berstorff of Hanover, Germany, displayed a prototype machine at K 2001 in Dusseldorf.
Other features include larger side-feed openings, now matched to the screw diameter, bigger degassing vents, and a new temperature-control system.
The firm also gave the extruder a cleaner look by integrating into the machine base most of the auxiliary equipment, including the lubrication system, electronics and temperature-control units.
Berstorff, which generated 2000 sales of 112 million euros ($121 million), is the only unit of Mannesmann Plastics Machinery that does not make injection molding machines. Even so, Berstorff has gained some technology as a partner with MPM.
At K, the company introduced a new “Berstorff-made” controller. The controller platform is shared by other MPM companies, according to Uwe Motzkau, manager for plant engineering. Upstream and downstream components are included in the software as standard. Additional auxiliary equipment is included via a field bus system.
In other news, Berstorff has opened sales and services offices in Beijing and Singapore.