Extrusion blow molding from medium quantities

In addition to classic injection molding, we also offer extrusion blow molding.
We can offer you plastic parts in this process for medium quantities at attractive conditions. We will be happy to advise you in detail on this product and accompany you from the first design to series delivery and take over the entire logistical process.

Extrusionsblasform aus Kunststoff
Extrusion blow mold made of plastic

The example shows a blow molding part, which was bonded to an additional molded part as a bottom in a further work step.


About extrusion blow molding

Extrusion blow molding is used to manufacture hollow bodies from thermoplastics. The previously melted polymer (melt) is pressed through a nozzle by means of a screw conveyor, so that a tubular preform is created. When the extruded tube has the required length, a knife cuts the tube. This process creates a preform that is designed in the shape of a hose. This is then transferred to the ready-made blow mold. There the blow pin is immersed and the actual blow molding takes place by introducing compressed air through the blow pin. The preform is finally adapted to the inner contours of this shape by means of internal pressure. After the cooling time has elapsed, the mold opens and the finished article is removed from the mold. The most frequently processed plastics for extrusion blow molding are the polyolefins polyethylene (PE) and polypropylene (PP)..