Marshall-Tufflex Integrates High Percentages of Recycled PVC with a Bausano MD Extruder

Marshall-Tufflex
CUSTOMER

Marshall-Tufflex

DATE

May 2025

INNOVATIONS

100% Recycled Material

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The Challenge: Increasing the Percentage of Recycled PVC in Profiles

Intelicare and Bausano supplied and commissioned a parallel twin-screw MD-125 extruder at Marshall-Tufflex, a British company specializing in cable management systems. The project addresses a precise technical goal: increasing the percentage of recycled PVC within the profiles produced, while keeping quality standards, dimensional stability, and production continuity unchanged.
The use of regenerated material introduces critical variables into the extrusion process, including rheological variations, non-uniform thermal behavior, and greater sensitivity in plasticization stability. Marshall-Tufflex needed a technical solution capable of ensuring process control even with formulations containing a high proportion of recycled material.

Process Testing with High Percentages of Recycled Material

Before defining the line, Bausano adopted a structured approach based on technical material analysis and preliminary extrusion tests. The process involved an in-depth study of the rheological characteristics of recycled PVC, evaluation of blending percentages with virgin material, and dedicated plasticization trials to verify thermal stability, pressure, and torque. Through laboratory tests and process simulations, the optimal screw configuration, the L/D ratio, and the most suitable thermal management for the required formulation were defined. This method makes it possible to design the line based on the material's actual behavior, reducing variables at start-up and ensuring greater production stability from the earliest operational phases.

The Technical Solution: Multidrive and Induction Heating System

The solution implemented is a parallel counter-rotating twin-screw MD-125 series extruder, configured to handle high percentages of regenerated PVC.
The patented Multidrive system distributes torque across multiple motors, reducing mechanical stress on shafts and gears and ensuring uniform power transmission. This aspect is decisive when processing materials with variable behavior.
The induction heating system concentrates heat directly on the barrel, ensuring greater thermal stability compared to traditional resistive systems. Reduced dispersion allows more precise control of plasticization and contributes to production continuity.
The integration of digital control systems enables constant monitoring of process parameters and specific consumption in kWh/kg produced.

Goal Achieved

David Cull: Technical Manager

“We decided to work with Intelicare and Bausano because they truly understood our need to produce a consistent, high-quality material, to ensure the highest quality of our products, and we cannot be anything but extremely satisfied with the results achieved so far.”

A Partnership Focused on Industrial Sustainability

The implementation of the Bausano line has allowed Marshall-Tufflex to significantly increase the percentage of recycled PVC used in profile production, while at the same time maintaining dimensional uniformity, structural stability, and consistent surface quality throughout the entire production cycle. The optimization of plasticization and controlled torque management have contributed to reducing scrap linked to process instability, improving flow regularity and the repeatability of the finished product's characteristics.
The extruder's technical configuration has also made it possible to stabilize production parameters over continuous cycles, even with formulations containing a high percentage of regenerated material. This has made the process more controllable, limiting variations linked to the rheological behavior of the recycled material and reducing unplanned interruptions.
The integration of the induction heating system has made it possible to optimize energy consumption, improving the efficiency of heat transfer to the barrel and ensuring greater precision in temperature control. The result is more uniform plasticization and reduced energy dispersion compared to traditional systems.
Today, production is more predictable and structured, with greater control over operating costs, better use of raw material, and more efficient management of energy resources. This has allowed Marshall-Tufflex to combine an increase in recycled material with industrial reliability, maintaining high quality standards over time.

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