Cincinnati Extrusion GmbH of Vienna, Austria, has shipped what it claims is the largest parallel counter-rotating, twin-screw extruder ever built for an American customer that makes PVC sheet.
The giant machine, an Argos 173, can turn out 4,400 pounds of material an hour. Cincinnati Extrusion said the machine is more than one-third bigger than what had been its largest parallel twin-screw extruder, the Argos 135. The unit measures 31 feet long.
The Argos 173 can make PVC foam sheet up to 1.22 inches thick.
In other news, about 200 people from 35 countries attended a conference on hot-water pipe manufacturing, held at Cincinnati Extrusion headquarters in December. The company has four pipe extrusion lines in its technical laboratory in Vienna.
Cincinnati Extrusion also announced it has blocked an extruder technology patent by competitor Milacron Inc. Cincinnati Extrusion filed formal opposition against the European patent of Milacron Inc., which sought a patent for what the Austrian company claims is an already-existing extruder technology.
The European patent office revoked Milacron's patent, according to Cincinnati Extrusion.
Officials of Milacron did not respond to a request for comment.
Cincinnati Extrusion's U.S. unit is in Erlanger, Ky.
Tel. 859-746-1530, fax 859-371-4534, e-mail [email protected]