Twin Screw Extruders

Designed to last, ready to meet every production challenge

MD and E-ON Series for high performance PVC extrusion

Bausano counter rotating twin screw extruders, available in both the MD parallel version and the E-ON conical version, represent a reference choice for companies seeking efficiency, reliability and constant quality in the processing of rigid, plasticised or filled PVC. The range is completed by co rotating twin screw extruders, ideal for compounding applications, masterbatch production and advanced recycling processes. Compared with the main solutions available on the market, the MD Series stands out for its high production capacity and flexible configuration. It is the ideal answer for companies that require high hourly output in the production of pipes for building and infrastructure, technical profiles for windows or compounds for industrial applications. The patented Multidrive system, which distributes torque across four synchronised motors, reduces mechanical stress, optimises performance over time and helps extend the service life of the system. The screw geometry ensures homogeneous melting and efficient degassing, even when processing regenerated materials.
The E-ON Series, thanks to its conical screw profile, is particularly suitable for the production of window profiles, corrugated pipes and other PVC based applications, even with high percentages of mineral fillers. The compact machine design and easy integration into existing lines make it possible to maximise production efficiency, especially where space and process continuity are essential requirements.
Both series are equipped with mechanical and electronic components designed in house, high efficiency motors and an induction heating system. Integration with the SPHERA digital ecosystem, based on artificial intelligence, enables advanced monitoring and dynamic adjustment of process parameters, ensuring operating precision, continuity and energy consumption reduction of up to 35%. When compared with the main market alternatives, Bausano solutions show a tangible difference in terms of performance, efficiency and reliability. Choosing a Bausano twin screw extruder means relying on technology designed to outperform in the most complex applications, delivering concrete and measurable advantages in every area of PVC processing.

Twin screw technology for high performance pipes, profiles and compounds

Bausano twin screw extrusion lines stand out for their modular design and ability to adapt to different production needs, while maintaining high standards of solidity and operating continuity. The two available series, MD with parallel screws and E-ON with conical screws, cover a wide range of applications in PVC processing, from window profiles to corrugated pipes, from regenerated compounds to filled materials. The range is completed by co rotating twin screw extruders, designed for compounding applications, masterbatch production and advanced recycling, where high mixing performance and process flexibility are required. Each system is engineered according to the required performance, with fully customisable configurations in terms of screws, barrels, transmission, feeding and automation.

MD parallel twin screw extruders

The Bausano MD Series of parallel twin screw extruders has been developed to ensure high and reliable performance in PVC processing, both rigid and plasticised. It is the ideal solution for the production of profiles, technical pipes and compounds, also using regenerated material. Thanks to the patented Multidrive system, optimised screw geometry and robust construction, these extruders ensure operating continuity, long service life of components and high energy efficiency.

MD SERIES

E-ON conical twin screw extruders

The Bausano E-ON Series of conical twin screw extruders has been specifically designed to meet the requirements of rigid PVC extrusion, particularly for corrugated pipes and rigid profiles. Thanks to their precision, operating stability and energy efficiency, these machines ensure excellent performance, long term reliability and high flexibility across a wide range of production environments.

E-ON SERIES

Do you have any questions about extruders?

For further information or specific requests, the Bausano technical team is available to provide personalised consulting.

Technical identity of Bausano extruders

INTELLIGENT TECHNOLOGY FOR EFFICIENT PRODUCTION

Artificial intelligence and smart control

On machine digital integration uses artificial intelligence to analyse data in real time, anticipate anomalies and guide targeted interventions. Parameters and alarms are displayed clearly, with historical analyses, predictive suggestions and operating instructions designed to increase efficiency and reduce downtime.

Induction heating

The induction heating system reduces consumption by up to 35% compared with traditional resistance heaters, ensuring uniform heat distribution and faster response times. Thermal stability improves process quality, reduces waste and increases the overall efficiency of the system, with lower operating costs and greater production continuity.

Rheology supporting design

hrough careful analysis of the rheological, chemical physical and mechanical properties of the material supplied by the customer, Bausano can accurately assess technical feasibility and optimise the design of the screw and extrusion head. This approach has a direct impact on productivity, efficiency and final product quality.

F.A.Q. about twin screw extruders

What are twin screw extruders?

Twin screw extruder are machine that transform plastic polymers into the desired shape. Twin-screw extruders are broadly classified based on the direction of rotation of the screws, either corotating (both screws rotating in the same direction) or the counter-rotating (screws rotating in the opposite direction). Further, they can be categorized as intermeshing and non-intermeshing screws.

What are twin screw extruders used for?

Twin screw extruders are used to transform plastic polymers and food components into a desired form, shape, and product. The possible products to be manufactured can be pipes, technical profiles, pellets, medical devices and pet food.

What is conical twin screw extruder?

A conical Twin screw extruder is a type of form of barrel and screw of the extruder. In conical extruders, the extruder is designated by the screw diameter at the end of the metering section. While, in parallel extruder size is the diameter of the flight. Conical twin screw extruders are shorter and have a higher replacement cost of the barrel respect to parallel ones.

What are co rotating twin screw extruders?

Twin screw extruders are classified according to the rotation direction of the screws: co rotating, when both screws rotate in the same direction, or counter rotating, when the screws rotate in opposite directions. The application determines which type is most suitable.

What are the advantages of twin screw extruder?

Twin Screw Extrusion lines can process a much wider range of materials and have different applications. The advantages of Twin Screw extruders are higher mixing capabilities, better control of process parameters, high speed of processing and better processing of much harder materials like PVC.

What is the difference between single screw and twin-screw extruder?

In a twin-screw extruder, the material transfer takes place by forward displacement with the degree of advancement depending on the proximity of one screw to the other, whereas in a single-screw extruder the material is usually dragged along the process line. Apart from the number of screws, the difference is that Twin-screw extruders have a wide range of operational capabilities in terms of the range of raw materials they can handle and the operating conditions. Also, Twin screw extruders have a better mixing capability that helps working with more difficult materials.

Which types of twin screw extruders are available in the Bausano range?

Bausano offers twin screw extruders in counter rotating configurations, with MD parallel extruders and E-ON conical extruders, for the efficient processing of PVC, polyethylene, polypropylene, ABS and composite materials. The range also includes co rotating solutions dedicated to compounding, masterbatch production and recycling

What determines the price of a Bausano twin screw extruder?

The cost of a Bausano twin screw extruder depends on several technical and production factors, always in relation to the customer’s specific needs. The main elements that influence the price are the starting material, such as powder, granules, regenerated material or composites, as well as the nature of the polymer to be processed. Other factors include the required productivity, the model and size of the extruder, especially screw diameter and technical configuration, the type of production and final application, such as pipes, profiles, compounds, pellets or specialised solutions for different sectors, the type of dosing system, whether gravimetric, volumetric or customised according to the required level of automation and precision, and the required downstream equipment, such as cooling benches, cutters, stackers or other specific units. For this reason, the price of a Bausano twin screw extruder can indicatively range from 100,000 euros for more compact and standard configurations to 800,000 euros for complete, customised and high productivity lines. Each project is developed on a tailor made basis: the Bausano team is available to analyse the real production needs and propose the most suitable technical and economic solution.

How do Bausano twin screw extruders differ from single screw solutions?

Thanks to the two intermeshing screws, Bausano twin screw extruders ensure more effective mixing, superior thermal control and homogeneous melting. This makes them ideal for transforming complex materials such as filled or regenerated PVC.

Which industrial applications do Bausano twin screw extruders cover?

Bausano solutions are suitable for the production of pipes for construction and infrastructure, technical profiles for windows and automotive, compounds and pellets for numerous industrial sectors.

What are the main advantages of using Bausano twin screw extruders?

Energy efficiency, constant product quality, reduction of downtime and waste, technical customisation of the line and specialised assistance. These factors help increase the customer’s competitiveness.

How does the patented Bausano Multidrive system work?

The Multidrive system distributes torque across four synchronised motors, reducing mechanical stress on shafts, gears and screws. This results in greater reliability, lower maintenance costs and extended service life of the system.

What is the induction heating system and why is it a concrete advantage?

The Bausano induction heating system uses electromagnetic induction to heat the barrel without contact, reducing consumption by up to 35% compared with traditional resistance heaters, improving heat distribution and speeding up start up times. It also ensures lower component wear and greater operating safety.

What is the difference between parallel and conical twin screw extruders?

Parallel twin screw extruders are suitable for high productivity and wide configuration flexibility, while conical twin screw extruders are ideal for applications such as window profiles and corrugated pipes, thanks to their compact design and high extrusion thrust, even with filled materials.

What is the difference between counter rotating and co rotating twin screw extruders?

Counter rotating twin screw extruders ensure gentle and controlled mixing, ideal for processing PVC and sensitive materials. Co rotating twin screw extruders, also part of the Bausano range, are designed for compounding applications and more intensive mixing processes across a wide range of polymers.

Which materials can be processed with Bausano twin screw extruders?

Rigid and plasticised PVC, polyethylene PE, polypropylene PP, PP HM, PPR, HDPE, LDPE, ABS and composite materials, including materials from the regranulation of post industrial and post consumer waste.

How are screws and extrusion heads customised?

Each project starts with the rheological and chemical physical analysis of the customer’s material, through plastograph tests and flow simulations. This enables tailor made design of screws and extrusion heads, maximising output, quality and reliability.

In which sectors are Bausano twin screw extruders used?

The main sectors include construction, automotive, medical, electrical, furniture and packaging. Bausano solutions are used internationally for their reliability and flexibility.

Is it possible to process regranulated materials and post industrial or post consumer waste?

Yes. The lines are designed to process regranulated materials, ensuring process stability and high quality of the finished product.

What are the main components of a Bausano twin screw extruder?

Each machine integrates a tailor made screw, precision barrel, optimised extrusion head, customised feeding systems, efficient cooling and induction heating system.

Which assistance, training and support services are guaranteed?

Bausano offers specialised technical assistance, scheduled maintenance, fast supply of original spare parts and continuous training, both during start up and throughout the entire operating life of the system.

An intelligent assistant that guides every stage of production

Choosing Bausano E-ON and MD extruders means adopting technologies already equipped with advanced digital systems and artificial intelligence integrated through the SPHERA ecosystem.

This solution allows customers to monitor and analyse all critical line parameters in real time, including temperature, torque, pressure and absorption.

The concrete advantage?

The machine can anticipate potential anomalies, optimising the stability of the production process and drastically reducing downtime and waste, even in complex and extended production cycles. This leads to greater operational continuity, consistent product quality and lower management costs. Compare Bausano solutions with other alternatives on the market: the native integration of artificial intelligence provides an additional advantage, ensuring reliable, repeatable results and real, lasting competitiveness for every customer.

Energy consumption reduced by up to 35%

Both twin screw series, E-ON and MD, can be equipped with electromagnetic induction heating. This proprietary technology enables energy consumption to be reduced by up to 35% compared to conventional resistive systems. Heat is distributed more uniformly along the barrel, with faster and more precise thermal control. The result is greater process efficiency, higher product quality and optimised operating cost management.

Custom made screw geometry and extrusion heads

Every Bausano twin screw extruder, whether from the MD or E-ON series, is the result of a design process based on objective data and advanced analysis. The rheological, chemical, physical and mechanical properties of the material are studied through plastograph tests and flow simulations, allowing precise and reliable information to be collected. These data guide the customised design of the screw and extrusion head, ensuring optimal production output, consistent product quality and process reliability, perfectly calibrated to each specific formulation. This approach reduces start up times, increases production stability and ensures maximum repeatability of results, even with complex or variable materials.