MD Extruders Series for PVC regranulation

Twin screw extruders

MD Series for the recovery of post industrial waste

MD Series: precise and continuous compounding for PVC and technical material recycling

The Bausano MD parallel twin screw series is developed for the regeneration and compounding of rigid and plasticised PVC, even in the presence of additives or mineral fillers. Thanks to homogeneous low temperature plasticising, the line preserves the chemical and physical properties of recycled material, minimising thermal degradation. Each extruder is optimised to process complex industrial waste such as profile scraps, medical residues, insulated cables and expanded PVC. The controlled action of the counter rotating screws ensures accurate mixing, even with high percentages of CaCO₃ or fibres, producing homogeneous compounds ready for reuse in new industrial applications.

MD twin screw extruders for PVC regranulation

The modular configuration, with the patented Multidrive system, ensures mechanical stability, uniform torque distribution and reduced consumption, guaranteeing high operating precision even under variable conditions. Advanced digital control enables continuous parameter monitoring and real time energy optimisation. Entirely designed and manufactured by Bausano, the MD Series is the ideal choice for companies that want to regenerate PVC with constant quality, enhance the value of production waste and actively contribute to a more efficient and sustainable circular economy.

Plastics processable with MD twin screw extruders: versatility and yield for every industrial waste stream

Waste from rigid PVC profile and pipe production

This includes PVC pipe scraps, window profiles, ducts and extruded components that cannot be directly reused. With the MD extruder, these materials are transformed into stable, compact regenerated pellets, reducing line waste and lowering the costs associated with virgin PVC supply.

Flexible PVC waste from finished or semi finished products

Sheaths, sheets and flexible PVC items require a controlled process to prevent thermal degradation. The Multidrive transmission and precise temperature control ensure gentle plasticising, preserving mechanical properties and enabling reuse even in applications with aesthetic or technical quality requirements

Technical and medical PVC waste with additives and special fillers

Waste from high value added sectors, such as medical, cables or technical products, often contains plasticisers, mineral fillers or fibres. MD extruders ensure homogeneous mixing and stable filtration, making it possible to obtain high performance regenerated pellets compatible with new industrial applications.

Bausano MD parallel twin screw extruders are designed to process different types of PVC waste efficiently and sustainably, even with complex formulations or contaminants. Thanks to process flexibility and customised screw design, these systems ensure operating stability, constant pellet quality and optimal recovery of plastic material.

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Caratteristiche tecniche estrusori bivite riciclo serie MD

Models	MD 158	MD 170
Screw diameter (mm)	158	170
L/D ratio	21 / 26 / 30	24 / 28
Heating zone	9 / 9 / 10	8 / 9
Cooling zone	7	8 / 9
Total power (kW)	260 / 286 / 338	411 / 435

Key features of MD technology for PVC recycling

Inline filtration system for the effective removal of solid contaminants, ensuring melt purity and final pellet quality
Induction heating system for efficient, stable and localised thermal management, with reduced consumption and greater process control
Integrated digital control with energy monitoring and predictive maintenance management
Configurable cutting systems: strand, frontal air cutting and tailor made modular solutions

The MD Twin Screw Series is designed for the efficient regeneration of rigid and flexible PVC waste, including profiles, sheaths, medical materials, additive compounds and cables. Ideal for complex processing with high percentages of mineral fillers, it ensures excellent melt homogeneity, even under critical conditions. The system optimises the processing of materials with variable composition, maintaining low process temperatures and dimensional stability of the pellets. Available in 158 and 170 mm versions, with power from 260 to 435 kW, the MD line can be configured for variable output production, including medium and small batches. Integration with automatic filtration, degassing zones and versatile cutting systems ensures stable and precise pelletising. The Bausano IoT platform guarantees complete traceability, real time control of the entire process and intelligent management of critical parameters, even with contaminated materials. Thanks to its modular architecture and the possibility of adapting each process phase to the type of PVC being treated, MD technology makes it possible to obtain high quality pellets suitable for new industrial applications. This gives processors a concrete competitive advantage, allowing regenerated materials to be reintroduced into production without compromising performance or reliability.

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MD Series: high performance thanks to specialised components

Pelletizing die head

The Bausano pelletizing die head is manufactured with a PVD surface finish, or Physical Vapor Deposition, a vacuum treatment that deposits a high hardness metallic ceramic film. This coating ensures high wear resistance, a low friction coefficient and dimensional stability, even when processing abrasive polymers or mineral filled materials. The PVD finish improves the smoothness of the surfaces in contact with the melt, reducing adhesion and material build up, while helping maintain process continuity and product quality during extended production cycles.

Sistema de desgasificación

Degassing is a key phase in the regeneration of PVC and materials containing plasticisers, stabilisers or processing residues. Bausano MD lines are equipped with one or more degassing zones, strategically positioned along the screw to remove air, moisture, solvents, monomers and volatile substances. This technology improves melt quality, prevents chemical instability and optimises the mechanical properties of the final pellets. Degassing is particularly important in the regeneration of plasticised PVC and blends containing organic residues or unwanted odours.

Cutting system

Bausano offers modular cutting systems, designed to adapt to the type of material, its viscosity and the final application of the pellets. Solutions include frontal air cutting, multi blade systems and customised configurations. Self centring rotors ensure precise and regular cuts, while the inspectable structure enables fast maintenance. Cutting geometry and force are optimised according to the density and rigidity of the PVC, ensuring uniform pellets even with additive filled or abrasive materials.

A starting point to define the right solution together

By filling in the form below, it is possible to describe specific technical or production requirements. The technical team will carefully evaluate the request in order to propose the most suitable extrusion line or extruder.