Cincinnati Extrusion has entered into a partnership with the German manufacturer Bauku to supply extrusion lines for spirally wound pipes

Plastics Engineering, April, 2007

Cincinnati Extrusion has entered into a partnership with the German manufacturer Bauku to supply extrusion lines for spirally wound pipes. Combining machine technology from Bauku with the latest Cincinnati extrusion technology, pipes up to 3,500mm can be produced.

With the Bauku process the extruder is placed on a mobile carriage running on rails alongside several winding stations designed to accommodate mandrels from 300 to 3,000mm nominal width. A width of 3,500mm is optionally available. With different profile dies, the extruder can produce virtually any desired type of pipe profile and also extrude pipes with high wall thicknesses by stepless or multilayer processes.

The standard length of pipes produced is 6m. As a rule, these are extruded with a socket and spigot, so that the socket joint automatically becomes an integrated part of the finished product.

The cost for a basic extrusion line to produce spirally wound pipe is about 1.8m [euro]. The winding stations required for each diameter range add about 0.3m [euro] per unit and can be retrofitted on a modular basis. Lines specially designed for small pipes (300-1,000mm) cost an additional 0.5m [euro].