Plant for making spunbond type polymeric filament

A plant for making spunbond type polymeric filament defining an extrusion direction and comprising in order along said extrusion direction:

• an extrusion head including at least one main channel suitable for allowing the passage of polymeric fluid through said extrusion head,
• a distributor being a breaker plate including at least one distribution conduit in fluid passage connection with said main channel and suitable for distributing said fluid, wherein the breaker plate includes a cavity and a filter, the cavity defining a distributor housing adjacent to said extrusion head and arranged between said main channel and said distribution conduit, and the filter housed and supported within said distributor housing;
• at least one spinneret including a plurality of holes, each of the holes developing parallel to said extrusion direction in fluid passage connection with said distribution conduit and suitable to extrude said fluid to make a respective polymeric filament,
• at least one distribution tank realised between said distributor, downstream of said distribution conduit, and said spinneret, upstream of said holes, and connecting, in fluid passage connection, said distribution conduit and said holes,
• wherein said distribution tank defines a first thickness along said extrusion direction between 3 mm and 5 mm.