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Extrusion in Perfection.

Extrusion in perfection

Complete Solutions – Individual or Standard. Anything is possible.
Your perfect product needs a perfect parison, and we can make this possible with our knowledge, experience, a W. MÜLLER extrusion die head, extruders, platforms, control systems and other components. W. MÜLLER equipment will adapt to any blow molding machine.

Expertise for every model
Your new or existing blow molding machines can be outfitted with our equipment. The advantage: even our standard solutions, will be a custom solution for you. Our heads are described as having the highest quality, reliability, and user-friendliness, making them extremely durable and the best choice for your blow molding machine. In addition, we offer our comprehensive service and are always available to help you with any process-related challenges. We work closely with all major manufacturers of blow molding machines and guarantee you flawless arrangements.

Independence through in-house production and quality assurance
All essential process engineering components are produced in our manufacturing facility in Troisdorf, with state-of-the-art machinery (5-axis machining centers) even the most complicated geometries can be executed. The finishing is complex, the polishing of the flow channels is largely manual work which requires craftsmanship and a great deal of experience, that must be carried out with extreme care.

Foreseeing Trends
We accept the challenges from the market and react before we are asked. We identify new trends in the market and plan how we can contribute to the changes. The close exchange with our customers and partners inspires us time and time again.
We are your point of contact for R&D projects. Our technical centers in Germany and the USA will carry out product and material testing, pilot series work, and conduct training on process engineering to assist you in challenges of your production process.

Our products at a glance

We offer you the perfect production solutions, whether you want to equip a new plant or retrofit your existing machines. In both cases you remain competitive and produce according to the latest technological standards.

Heads - for continuous blow molding

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.

Extruder - it all starts with the material melt

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.

Platforms - Plug and Play

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.

Control system - makes life easier

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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Accumulator heads - for discontinuous blow molding.

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. 

Accessories / Components

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. 

Our service

We know that the efficiency and productivity of our products are important factors to you. Our W. MÜLLER service team supports you in the maintenance of your machines, by offering repair services in difficult situations. Our teams work efficiently with the highest level of professionalism - supported by our spare parts inventories and worldwide shipping capabilities. Our in-house production is your advantage. Even our complex designed parts are available as replacements within a short period of time. 
Preventive maintenance and service is an important issue for us. We are happy to offer you high-quality service packages for your machinery. 

Spare parts

Our extrusion heads are often in use for several decades because we offer flawless service. This applies to our entire range of spare parts, including heating elements, wear parts, servo motors and wall thickness programmers, to only name a few. We can replace appropriate parts without jeopardizing your production process – on site if necessary.

Maintenance, cleaning, and refurbishment

When the quality of the article no longer meets the requirements, when color change times begin to increase, when wall thicknesses is not as consistent as it used to be, we offer maintenance and cleaning of the extrusion heads by our experienced service technicians. Do you need to upgrade your existing extrusion head with view stripe capabilities, make changes to your current layer structure or tooling dimensions, change the center distance of your die head? No problem, we will clean, repair, and refurbish your W. MÜLLER equipment, to bring your process up to date.

Troubleshooting, process consulting, optimization, and training

Extrusion blow molding is an extremely complex and very sensitive process. Knowing the significance and interrelationships of the many influencing variables and controlling them so that production parameters and article quality run together, require a great deal of experience and skill. We are happy to share our experience and knowledge with you, regardless of whether it is an extrusion head from us or another manufacturer.

 

On-site assembly and commissioning

We offer installation and assembly of new, used, or existing heads on new EBM machines or your existing machines at your facility.  Commissioning of the die head and training of your personnel are included.

Troubleshooting on the phone and video support

For fast, easy and straightforward help, our service department personnel are available to answer all your mechanical, electrical or process engineering questions by telephone or video conference.

Our technical center

Would you like to develop a new product, try out a new material or article design, or optimize your production parameters? Then you are in good hands at our technical center. We offer a quiet confidential environment with a team that supports you with many years of process experience. With our help, you can enhance a product to market development unnoticed by the competition. We provide you with the infrastructure, various blow molding machines, which we can equip with different extrusion heads, leaving hardly any need unfulfilled, from monolayer, DeCo/ReCo to CoEx processes. We can check the article performance, through compression and drop tests. 

Our goal is to establish and advance sustainable technologies. Based on our motivation, we have been processing and testing PCR and bio-based materials for some time. With our knowledge and experience we want to be your partner in sustainability. We support you on your way to a sustainable product!

Your want to change your production to process your articles with post-consumer-materials? We can sample your product with PCR material at our technical center. We also assist you with performance and migration tests and help you to find the best suitable and most sustainable solution for your production!

Contact

Knowledge is important for success - and we would like to pass on our knowledge.

Academy

Blow molding technology is complex - we explain it understandable and suitable for every day.

Blow molding 101

Used heads

W. MÜLLER extrusion heads have many strengths, two of the most notable are quality and durability. To manage these power packages more sustainably, we offer reclaimed heads for widespread applications, they are reconditioned to new quality and made available to the market at a fair price.

Jack - Reference No.: 127515

Head typeS4/25-60 T-PE, DeCo2
Number of layers2
max. die diameter25 mm
Number of parisons4
center distance60 mm
max. throughput per strand20 kg/h
max. total throughput80 kg/h
Material(HD)PE, PP
View stripesNo
[Translate to English:] Gebrauchtkopf 127515
Contact

Corinne - Reference No.: 18891

Head typeS12/25-50 T-PE
Number of layers1
max. die diameter25 mm
Number of parisons12
Center distance50 mm
max. throughput per strand20 kg/h
max. total throughput240 kg/h
Material(HD)PE, PP
View stripesNo
[Translate to English:] Gebrauchtkopf 18891
Contact

Harry - Reference No.: 12282

Head typeS4/35-100 T-PE, DeCo2
Number of layers2
max. die diameter35 mm
Number of parisons4
Center distance100 mm
max. throughput per strand30 kg/h
max. total throughput120 kg/h
Material(HD)PE, PP
View stripesNo
[Translate to English:] Gebrauchtkopf 12282
Contact

Elfie - Reference No.: 126012

Head typeS4/35(60)-100 T-PE
Number of layers1
max. die diameter35 mm
Number of parisons4
Center distance100 mm
max. throughput per strand45 kg/h
max. total throughput180 kg/h
Material(HD)PE, PP
View stripesNo
[Translate to English:] Gebrauchtkopf 126012
Contact

Jesaya - Reference No.: 123814

Head typeS6/35-100 T-PE
Number of layers1
max. die diameter35 mm
Number of parisons6
Center distance100 mm
max. throughput per strand35 kg/h
max. total throughput210 kg/h
Material(HD)PE, PP
View stripesNo
[Translate to English:] Gebrauchtkopf 123814
Contact

Leo - Reference No.: 21899

Head typeS8/35-100 T-PE
Number of layers1
max. die diameter35 mm
Number of parisons8
Center distance100 mm
max. throughput per strand35 kg/h
max. total throughput280 kg/h
Material(HD)PE, PP
View stripesNo
Contact

John - Reference No.: 124748

Head typeS1/60 P-PE, CoEx6
Number of layers6
max. die diameter60 mm
Number of parisons1
Center distance-
max. throughput per strand20 kg/h
max. total throughput20 kg/h
MaterialCoEx 6
View stripesYes
[Translate to English:] Gebrauchtkopf 124748
Contact

Eliza - Reference No.: 12233

Head typeS10/60-125 T-PE
Number of layers1
max. die diameter60 mm
Number of parisons10
Center distance125 mm
max. throughput per strand50 kg/h
max. total throughput500 kg/h
Material(HD)PE, PP
View stripesNo
[Translate to English:] Gebrauchtkopf 12233
Contact

Kate - Reference No.: 12717

Head typeS6/90-170 T-PE
Number of layers1
max. die diameter90 mm
Number of parisons6
Center distance170 mm
max. throughput per strand80 kg/h
max. total throughput480 kg/h
Material(HD)PE, PP
View stripesNo
[Translate to English:] Gebrauchtkopf 12717
Contact

Thomas - Reference No.: 19772

Head typeS2/35-100 P-PE, CoEx6
Number of layers6
max. die diameter35 mm
Number of parisons2
Center distance100 mm
max. throughput per strandapprox. 35 kg/h
max. total throughput70 kg/h
MaterialCoEx 6
View stripesNo
Contact

George - Reference No.: 123492

Head typeS6/35-70
Number of layers1
max. die diameter35 mm
Number of parisons6
Center distance70 mm
max. throughput per strandapprox. 30 kg/h
max. total throughput180 kg/h
Material(HD)PE
View stripesNo
Contact