Twin Screw Technology
An interview with Steve Post, Sr. Sales Director for Cast Film at W&H, on the company's new twin screw technology for processing PCR and PIR. Steve brings 35 years of industry experience and joined W&H in September.
Steve Post, Senior Director of Sales at W&H in North America
What is W&H's new twin screw technology?
At K 2025 in Lengerich, W&H unveiled twin screw technology designed to improve the processing of PCR and PIR. The technology mixes the recycled material and reduces particle size directly in the extruder during the melt process.
How does it help?
By breaking down gels and dispersing them evenly across the film, consistency is improved. It also addresses odor associated with PCR. Volatiles trapped in the material are released during processing rather than remaining in the final film. The result is improved physical and optical properties.
Who benefits from this technology?
Any manufacturer looking to increase recycled content in their film without compromising packaging integrity. The system can be retrofitted and is only required for extruders processing the PCR and PIR.
What's the status of the project?
The project is fairly new. Our Finnish customer, Rani Plast, is already using it successfully (see their story in the video below).
W&H is also running trials for proof of concept and welcomes companies to run their PCR through the system.