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Foams Industry

Expert Know-How in Foam Recycling


Product Reference

Recycling of Foam Waste

With foam material one differentiates between expanded polystyrene (EPS) and foamed polyethylene (PE).  PE is the preferred material for the manufacturing of film or pipe insulation.  EPS is commonly used as insulation for houses or as packaging material.

Production waste created during start-up and shutdown of the production line is a valuable raw material when correctly prepared.

The knife mills developed by PALLMANN through practical application, offer decisive advantages with their high throughput rate and economic performance during the recycling process. Defined granules sizes according to the chosen screen hole size, load controlled material feeding, easy exchange of screen and knives as well as knife adjustment outside of the machine characterize the preferred knife mill technology.

Special knife mills such as the Foam Chipper, Type PHK and the Ultra Granulator, Type PS Series P with horizontal conveyor belts as wells as load-controlled draw-in rollers offer an operator friendly feeding and trouble free workflow.

Manufacturers all over the world use PALLMANN The Plast Agglomerator, Type PFV to produce agglomerates from PE waste material, which can be reintroduced into foam production.  The agglomerate from EPS-waste is commonly used in injection molding.

Continuous processing, high throughput rate, gentle agglomeration at low temperature, fully automatic continuous operation with a minimum of personnel as well as space saving design are the special characteristics of the PALLMANN Plast-Agglomerator Systems.

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Recycling of Insulation Foam Waste

Insulating materials from extruded Polystyrol-HR-foam (XPS) are used in many applications i.e. roofing, flooring, exterior/interior wall insulation and many other areas.  The production of extruded HR foam sheets is therefore continuously expanding worldwide.  During production and further processing, waste is created in form of rejects or milling chips.

PALLMANN recycling technology offers the decisive advantage of being able to produce free-flowing agglomerates with high bulk density that can be immediately re-entered into the production cycle.

With high throughput rate and economic performance, a granulator such as the PHK Plastic Chipper, first of all produces a granule of defined size that can be further processed in the Plast-Agglomerator.  The sturdy and durable design of the granulator is made for extreme, continuous operation.  Load controlled material feeding via conveyor belt and draw-in rollers guarantees comfortable horizontal feeding.

The Plast-Agglomerator produces agglomerate from the granule, by means of gentle agglomeration with frictional heat, without any major thermal stress.

Due to the low heat generation, cooling of the agglomerate by water immersion is not necessary, therefore avoiding contamination of the cooling water by flame retarding agents and eliminating the high cost of water purification.

Sheet waste and milling chips can be processed in one step.  Start-up under cold condition without prior cleaning of the agglomerating chamber is possible at any time.

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Recycling of PLA Foam (Polylactic Acid)

During the production and processing of PLA foam and film, waste is generated. Valuable virgin material can be saved by recycling the waste. Recycled production waste can be reintroduced into the process for the production of new material.

Recycling of PLA with the Plast Agglomerator, Type PFV

Using a special process, the PLA waste is transformed into high quality, free flowing granules by means of The Plast-Agglomeration System.  Through frictional heat only and mechanical pressure the material is evenly sintered, within fractions of a second.  The PLA production waste is agglomerated right below the melting point with minimum thermal degradation of the product.  The recycled high-quality material is suitable to be reintroduced into production.

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2009 PALLMANN Industries, Inc.
PALLMANN Industries, Inc.
36 Atlantic Way, Clifton, New Jersey 07012 - USA
Phone: (973) 471-1450 - Fax: (973) 471-7152