AMUT
Biorientation technology allows to increase some performances of the thermoplastic material. It’s applied for the extrusion of HDPE pipes to produce thin wall pipes but with a very high resistance. Since 1974, AMUT has developed this technology that finds its main application in the production of small pipes for shotgun shells.
Because of their higher properties the thermoplastic pipes have fully replaced the traditional cardboard pipes that were used for the preparation of shotgun shells. The extrusion line offered by AMUT ensures the achievement of the best quality parameters with very low tolerances and has the special advantage of obtaining an in-line cut-to-size pipe that means no need to handle again the pipe for the successive cut steps.
This is possible thanks to the “mechanical” biorientation technology, based on the use of a stretch-mandrel. This technology, contrary to the one based on the use of inside pressure, ensures the easy operation of the extrusion line, the use of different materials, the achievement of high outputs and especially the possibility of the cut-to-size directly in-line. The technology of mechanical biorientation ensures very high tensile strength values (over 22kg/mm2) and thanks to this property it is possible to produce small pipes for shotgun shells that can be “recharged” up to 15 times.
Another advantage offered by the line supplied by AMUT is the possibility to produce bioriented pipes of small diameter (11mm) necessary for the smallest gauges (gauge 36 - .410), otherwise produced by means of rigid and expensive injection technologies. The extrusion line is very easy to operate and very flexible. The change of product can be made in one hour only.