PRALL-TEC GmbH Laminated glass Contact
Wheel loader tipping laminated glass into the feed hopper of the Prall-Tec PTG 4 pre-shredder
Recyglass® laminated glass and PVB recycling · Made in Germany

Separating laminated glass. Cleanly and economically.

The Recyglass® system separates automotive glass as well as laminated and safety glass panes into glass, PVB film and residues – dry, with little wear and fully automatically in a closed loop.

01 · The problem

Glass is 100 % recyclable. Laminated glass still ends up on the heap.

In some applications, up to 90 % recycled glass goes into new products today. With PVB laminated glass the picture was long a different one: liquids, high speeds and cutting comminution drove up wear costs and change intervals – the process was often considered uneconomical.

That is why many laminated glass panes worldwide are still landfilled instead of returning the raw materials they contain to the economic cycle at a profit.

  • Today: landfill or heap
  • With Recyglass®: raw material
Who stands behind Recyglass®

No laboratory solution. Prall-Tec.

We have steadily refined the geometry of our shredder shafts over many years. Every machine is planned, designed and built in our own works in Lengerich – the result is a plant tailored to your material and your site.

  • Made in Germany

    Developed and manufactured at Prall-Tec in Lengerich.

  • 100 % recycling

    Glass, PVB film and residues are separated – film that is not clean enough runs through the process again.

  • Individual concept

    Tailored to every customer – with various expansion stages and machine components.

  • PVB as a valuable material

    The PVB film stays largely intact during separation – the basis for high-quality PVB recycling.

02 · Process

From a pile of panes to a clean fraction.

The feed hopper and pre-shredder make for simple product feeding and a continuous supply. The PTRG then separates glass and PVB film without comminuting the film any further.

  1. 01 Feed

    Wheel loader or sorting grab

    The plant is simply fed by wheel loader or with a sorting grab on an excavator – one operator is enough.

  2. 02 Pre-shredding

    PTG 4 shredder

    High throughput and consistent quality – virtually cost-free and low-maintenance thanks to optimised shaft geometry.

  3. 03 Metal separation

    Metal and optional non-ferrous metal

    Metallic components are discharged, and non-ferrous metals in addition on request.

  4. 04 Delamination

    PTRG separates glass from film

    The glass is released from the PVB film without comminuting the film any further.

  5. 05 Screening & classifying

    Clean separation, recirculation

    Screening and classifying separate pieces of film from glass cullet. Film that is not clean enough goes back into the process.

03 · From laminated glass to fractions

What comes out of the pane.

The degree of cleaning of glass and PVB film is adjustable. Around 90 % of the film leaves the process clean; the remaining 10 % with adhering glass runs through the PTRG again via the recirculation loop.

  • Clean glass cullet from the Recyglass® process
    Glass 99.7 % clean Main stream, 0–30 mm after the PTRG
  • Clean, glass-free PVB film after the Recyglass® process
    PVB film clean · approx. 90 % For new applications made from recycled PVB
  • PVB film with adhering glass splinters
    PVB with adhering glass approx. 10 % · recirculation Runs through the Recyglass® process again
  • Residues and waste from the Recyglass® process
    Residues and waste Discharged separately
04 · Technical data

The machines of the Recyglass® line

Pre-shredder and delamination form the heart of the plant. We determine together which expansion stage suits your material flow.

  • PTG 4
  • PTRG
Machine Throughput Weight Inlet size Feed size Power Final material
PTG 4 40 t/h 9,000 kg 2,000 × 3,000 mm 3,000 mm 4 × 18.5 kW 0–250 / 0–200 mm, depending on shafts
PTRG 100-67 25 t/h 7,000 kg 280 × 670 mm 300 mm 90 kW 0–30 mm glass
PTRG 100-100 35 t/h 9,500 kg 280 × 1,000 mm 300 mm 132 kW 0–30 mm glass

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05 · Advantages in laminated glass recycling

Nine reasons for Recyglass® in laminated glass recycling

From the delivered pile of panes to clean glass and PVB film: Recyglass® is designed for separating laminated and safety glass.

  • Feeding and pre-shredding of laminated glass panes in one machine
  • Simple, fast feeding of automotive and laminated glass into the hopper
  • One-person operation from a wheel loader or excavator
  • Fully automatic control in a closed loop – PVB with adhering glass returns to the process
  • Adjustable degree of cleaning for glass and PVB film
  • Easy, fast access to all machines
  • Cost-efficient and low-maintenance
  • Fully electric plant below 250 kW
  • Usable anywhere, without special foundations
06 · Facts and potential

Glass recycling is growing.

Bottles and flat glass have been recycled economically almost everywhere for decades. Laminated glass processing is catching up, because demand for glass and PVB is rising – and more and more companies are developing new applications for recycled PVB, which today comes largely from laminated glass panes.

The scale of the potential is already clear from the global vehicle fleet – and every windscreen is laminated glass. By 2050, around 2.9 billion vehicles are expected, roughly 1.2 billion more than in 2023.

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Global vehicle fleet
  • 1960 100 million
  • 1990 550 million
  • 2010 1 billion
  • 2023 approx. 1.7 billion
  • 2050 (forecast) approx. 2.9 billion

Sources: 1960–2010 Prall-Tec; 2023 and forecast 2050: OPEC World Oil Outlook.

07 · FAQ

Frequently asked questions

Something missing? Tell us your material and your site – we answer specifically rather than in general terms.

  • Which types of glass can Recyglass® process?

    Automotive glass such as windscreens as well as various other laminated and safety glass panes with a PVB interlayer.

  • How is the plant fed?

    By wheel loader or with a sorting grab on an excavator, straight into the feed hopper. The plant can be operated by one person.

  • How clean are the glass and the film?

    The glass fraction reaches 99.7 % purity. The degree of cleaning of glass and PVB film is adjustable; film with adhering glass is automatically returned to the process.

  • Does the plant need water or a special foundation?

    No. Recyglass® works without special foundations and is fully electric with a connected load below 250 kW – which means the plant can be used almost anywhere.

  • How is the plant dimensioned?

    Every plant is created as an individual concept – matched to your material, the desired capacity and your site.

08 · Contact

Request a project meeting

Tell us your material, the estimated annual volume and your site. We will get back to you with the next steps towards your plant concept.

Project enquiry

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