Window profile extrusion

 

 

Patented technologies for efficient window profile extrusion


Most important

Extruder for the manufacture of window profiles

In modern window profile extrusion, success depends not only on the quality of the materials used, but above all on the precision, stability, and flexibility of the entire extrusion technology. WEBER develops system solutions for window profile extrusion that are precisely tailored to these requirements: modular in design, scalable, and consistently optimized for maximum process reliability and cost-effectiveness.

Our systems for window profile extrusion are designed to cover a wide range of requirements in window profile manufacturing—from high-precision visible profiles to complex multi-layer applications. The focus is always on stable and reproducible product quality, regardless of material mix, output capacity, or profile geometry.

Custom extrusion solutions tailored to your needs

Every production environment in window profile extrusion has unique requirements in terms of throughput, material usage, and flexibility. That is why our solutions are not based on standard machines, but on configurable systems that are precisely tailored to each specific application.

A central component of our technology is the in-house development and manufacture of gearboxes. This allows pressures of up to 500 bar to be generated, enabling high process stability and significantly increasing output.

The entire extrusion process is monitored and controlled by intelligent software solutions, ensuring consistently high process reliability and product quality.

Our patented mechanical gearbox overload clutch reliably protects the system from overload and increases operational safety as well as the service life of the systems.

In this way, WEBER enables an optimal combination of efficiency, precision, and flexibility in window profile extrusion.

Profile extrusion

WEBER CE extruder
CE series

Twin-screw extruder conical

Co-extrusion for the manufacture of window profiles

The requirements for window profiles have changed significantly in recent years. Economic and functional considerations mean that multilayer profiles are becoming increasingly important. Co-extrusion enables the targeted combination of different materials within a single profile.

This allows for the use of both high-quality virgin materials for the outer layer and cost-effective recycled materials or core formulations in the core layer. This separation of materials enables a significant reduction in production costs while maintaining optical and mechanical properties.

Co-extruders can be flexibly integrated into existing systems—even retroactively or in combination with third-party equipment. This results in a highly adaptable production system that is both technically and economically compelling.

DUO concept for maximum line efficiency

The DUO concept was developed to efficiently operate two extrusion lines in a very compact space. Compared to traditional twin-line solutions, this architecture enables significantly higher capacity utilization while maintaining the same footprint.

Each line is controlled independently, allowing different profiles to be produced in parallel without the processes interfering with one another. The separate melt flow increases process reliability and enables flexible adaptation to different production orders.

The system also offers advantages regarding start-up and shutdown processes, as control is simplified and production interruptions are managed in a more controlled manner.

Process reliability and consistent product quality

At the heart of every WEBER extrusion solution is process stability. Consistent melt control, precise temperature control, and optimized drive technology ensure that consistent profile quality is achieved even with varying material compositions.

The combination of modern control technology and robust mechanical components ensures high system availability while reducing maintenance requirements. This creates a production environment that operates both economically efficiently and technologically reliably.

Modular system designs for maximum flexibility

The FleXXtrusion architecture is based on a modular machine design that standardizes the base frame, control system, and drive unit, while the process units remain flexibly interchangeable. This allows the system to be precisely tailored to the required output range without the need for oversizing during the initial phase.

Capacity can be expanded as needed by adding longer or more powerful processing units. Additionally, the concept allows for the integration of a co-extruder, enabling efficient implementation of multilayer applications. This flexibility is particularly relevant in production environments where material requirements or market demands change dynamically.

Examples of window profiles

Variety of profile designs:

Our extrusion technologies offer an exceptional range of possibilities in terms of profile shapes, materials, and structures. We are able to process all types of materials reliably and efficiently.

We place a special focus on the processing of recycled materials: With our systems, we can incorporate up to 70% recycled content without compromising quality. Window profiles manufactured with WEBER extruders impress with clean profile contours, uniform coloration, and excellent results in mechanical stress tests.

Furthermore, our technologies enable the easy integration of decorative layers made from specialty materials, for example to increase UV stability. By using our co-extruders, such multi-layer solutions can be implemented efficiently and reliably.

WEBER – A technology leader in window profile extrusion

As a technology leader in the field of window profiles, WEBER stands for:

- Precision, innovation, and the highest quality
- Multiple patented technologies that set the standard in extrusion
- Over 100 countries worldwide that rely on our solutions
- A variety of output ranges and technical configurations to meet every production requirement

A key factor in the success of our systems is our screw geometries, some of which are unique. These specifically introduce additional plasticizing energy into the process, enabling particularly homogeneous and efficient melting of the material—even with demanding formulations and high recycled content. The result is stable processes, higher performance, and consistently high product quality.

With WEBER, you are choosing German engineering expertise, industrial experience, and globally proven extrusion technology—developed for maximum performance, efficiency, and future-proofing.

Questions regarding the manufacture of window profiles using extrusion technology.


Extrusion in the manufacture of window profiles is a process in which plastic pellets are forced through a die to produce precisely shaped profiles. The plastic is heated and melted in the extruder and then forced through the extrusion die under pressure, creating the desired profile.

The most common materials used for extruding window profiles are PVC (polyvinyl chloride). These materials are characterized by their versatility, durability, and weather resistance. For cover layers and seals with special properties such as UV resistance, increased impact strength, or optimized surface quality, specialized materials and compounds are also used. These are specifically tailored to the respective requirements and can be co-extruded reliably.

When selecting extruders, factors such as output rate, pressure, temperature control, and the ability to customize are crucial. It is important that the extruders meet the specific requirements of the manufacturing process.

The shape of the window profiles is determined by the specific design of the die. The die not only determines the external shape, but also the internal structures and cavities within the profile. The WEBER extruder ensures a homogeneous melt, a uniform profile, and thus consistent quality of the window profile.

WEBER’s extrusion technology is distinguished by its advanced extruders, precise control systems, and innovative adaptability. As a technology leader, we combine these systems with several patented innovations, including sophisticated screw geometries that specifically introduce additional plasticizing energy into the process, thereby enabling exceptionally homogeneous melting even for demanding material formulations.

Our gearboxes are developed and manufactured entirely in-house and are designed to generate process pressures of up to 500 bar. This allows even high flow and material resistances to be overcome, resulting in increased output and significantly higher productivity.

This is complemented by intelligent software solutions that continuously monitor and optimize the entire extrusion process.

WEBER offers close collaboration in the development of custom solutions. Our experts work closely with customers to understand their needs and develop tailored extrusion solutions that meet the highest standards. We place great emphasis on partnership and continue to support our customers long after the sale.

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