Extrusion blow molding of plastic

In addition to classic injection molding, we also offer extrusion blow molding.
We can offer you plastic parts in this process at attractive conditions, even for medium quantities. 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.

Plastic extrusion blow mold
Plastic extrusion blow mold

In the example shown, a blow molding was glued to an additional molded part as a base attachment 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, resulting in a tubular preform. When the extruded tube has the required length, a knife separates the tube. This process creates a preform that is tubular in shape. This is then transferred to the ready blow mold. The blow pin dips in there 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 mold by means of internal pressure. After the cooling time has elapsed, the tool opens and the finished article is demoulded. The most commonly processed plastics for extrusion blow molding are the polyolefins polyethylene (PE) and polypropylene (PP).

Extrusion blow molding is used to manufacture hollow bodies from thermoplastics. This process is often used for the production of packaging and containers, such as bottles, canisters, tubes, cans and containers for food, beverages, cosmetics and other everyday products. Technical products such as tubes, hoses and housings for electronic devices can also be manufactured using extrusion blow molding. In the automotive industry, components such as fuel tanks, air filter housings and bumpers are also produced using extrusion blow molding.