Our extrusion heads for extrusion blow molding meet the highest demands for precision, availability, performance, and ease of use, ensuring a safe and cost-effective production.

Our range of available extrusion heads is shown in the table below. We are happy to provide assistance, and individual designs of extrusion heads.

Through many years of experience in design, construction, manufacturing, and operation of our extruders for view stripes and thin-walled parisons, our equipment allows the widest possible processing spectrum and enables an extremely long service life of the extruder. Our compact extruders are perfectly adapted to your requirements in many variants: including vertical (e.g., for retrofitting) and horizontal designs. For high throughput applications, we have premium extruders with heat-separated feed zone cooling, which delivers a flawless melt for the process. We also offer corresponding  extruder and screw designs for materials such as PVC, PA, EVOH, E-PET, and adhesion promoters.

The perfect combination of a head and complete extrusion system is the heart of any blow molding machines – our solutions are tailor-made for your product and adaptable to your machine.

Our controls are ideally suited to our extruders and parison head systems. With them, you always have your production flow safely in view.
Our MERC control system (Müller-Extrusion-Retrofit-Control) can be used on original equipment and for retrofitting existing blow molding machines. It offers insightful and appropriate operator guidance. The MERC makes our comprehensive machine retrofits so successful and, in some cases are necessary to make it all possible. All your important process data can be displayed simultaneously via a large touchscreen. The MERC works with exact models of the die head and extruders in 3D, making it much easier for you to operate complex retrofits. New extrusion blow molding machines can be equipped with a MERC to achieve a very clear separation between extrusion and machine functions.
For smaller retrofit solutions, the miniMERC is the perfect answer. This control consists of a 7" touch-screen PC and has all the basic functions required for proper extrusion. The miniMERC also works with exact representations of the die head and extruders in 3D. The miniMERC can also be used as a compact  and cost-effective WDS retrofit.

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Our accumulator heads allow a discontinuous production process when producing large or long parts, using low-viscosity plastic materials or to produce blown parts with color gradients. 

Electric Wall Thickness Control (EWTC) - Always in the Right Position 

Our extrusion heads can be equipped with an electrically driven, low-maintenance wall thickness control. We supply these fully electric wall thickness controls with a tensile and holding force of up to 1000 kN.  Accurate predictability, low-maintenance and durable - even after millions of production hours. In short: Our EWTC can withstand any load. 

Melt accumulators - first in, first out! 

Our melt accumulators for the control of multi-layer accumulator heads, discontinuous extrusion heads with several parisons
or special capabilities such as a color gradation are available with both electric and hydraulic drives in various sizes
from 30 ml to 25 l. 

Quick-change systems - back in production in no time 

For multi-layer systems, we offer you a specially developed design to connect several extruders to different heads, cleanly, easily, and quickly, this also allows a change in the number of cavities as well as the position of the layers in CoEx applications. This system leads to the greatest possible flexibility for your extrusion system and thus offers investment security for the future. 

Screen changer - everything clean 

The compact design of our screen changers offers the possibility of retrofitting even when space is limited. They become an essential part of the machine when processing PCR because the screen removes the impurities consistently and efficiently. They are user-friendly and require little maintenance. The screen changers are installed and adapted according to the connection geometry of your extruder and can be equipped with a hydraulic or electric drive. The easiest way is to use a handwheel or a cordless screwdriver, which makes changing screen inserts a quick and safe operation. Screen changers are available for many common throughputs. 

PWDS® - for the perfect partial material distribution 

Our heads can be prepared for PWDS®-/SFDR®-Systems from Feuerherm GmbH. 

Extrusion tools 

We design all types of extrusion tooling, that will work to fit your needs. If you plan to use your existing tooling, we will check the parameters and modify the head design accordingly. 

Swiveling die – for the perfect curves 

We developed our swiveling die for specially shaped products and parisons. Using a dynamic parison thickness regulation on a 360° ring surface, it allows a partial wall thickness distribution for curved pipes. Thanks to our swiveling die, the material thickness is consistent along the entire article length and circumference of the article.  Material thickness changes within the article can also be achieved.