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    Solutions for PET recycling MetaPure W and S
    Solutions for PET recycling MetaPure W and S

      Recycling of PET containers into flakes or pellets

      Sustainability and profitability: our contribution to a circular economy

      Can plastic packaging be sustainable? Yes, if its production is gentle on resources and it can be kept in a closed loop – and Krones makes both possible. From a material-saving packaging design through to low-energy container production and the recycling of used plastic materials: We give PET bottles and other packaging the chance to have a sustainable and environmentally friendly life – not only once, but multiple times.
      Recycling plays a key role here. On the one hand, Krones provides its own washing and decontamination modules and, on the other, also takes on the overall responsibility for entire recycling factories.

      At a glance

      • Recycling of PET containers into flakes or pellets
      • Energy-saving, direct further processing (optional)
      • Individually adjustable intrinsic viscosity (IV)
      • Production of different material qualities –up to food-grade PET standard according to FDA, EFSA and other certificates
      • Available as a complete line or in the form of individual machines
      00 - Article Item 17778
      Download brochure Krones solutions for PET recycling MetaPure W and S
      3,83 MB, .pdf

      Three system types for PET recycling

      MetaPure (complete system) MetaPure W-PET MetaPure S

      Recycling of containers supplied in bales/as pressed containers

      • into PET flakes or pellets for use in direct contact with foodstuffs
      • or inline directly into preforms or film
      Recycling of containers to form PET flakes for use in non-food products or for further processing for direct contact with foodstuffs Decontamination and SSP** of washed PET flakes, or PET flakes or pellets for use in direct contact with foodstuffs
      1,000 kg/h to 9,000 kg/h 1,000 kg/h to 4,500 kg/h* 500 kg/h to 1,500kg/h*
      Space requirement    
      600 –4,500 m2 250 –1,000 m2 250 –500 m2

      * Several modules can be combined with each other in order to achieve higher outputs.
      ** SSP –Solid State Polymerisation

      Who can use MetaPure?

      • Brand bottlers
      • Private label bottlers
      • Converters
      • Recyclers

      The MetaPure W-PET washing module

      The MetaPure W-PET washing module

      Excellent cleaning results with the Krones washing technology

      • Pre-cleaning
      • Caustic cleaning with caustic renewal
      • Multi-stage post-washer
      • Drying
      • Automatic waste management system reduces the operator’s work
      • Separation of labels and caps using a float-sink separation system and sifter

      The Krones washing process with pre-treatment, caustic cleaning and hot post-washing ensures clean flakes with the best usability for high-quality applications (fibre, film, injection moulding).

      Benefits to you with the MetaPure W-PET

      • Gentle treatment of the material as the units operate with a slow rotation
      • Reliable removal of dirt, organic residues and adhesives using a caustic washer
      • Less cleaning and more safety for the line operators thanks to the clean design and automatic waste management system
      • Possibility to reuse the process waterwith the integrated water cascade
      • Very good washing results achieved with a hot post-washing process
      • Reliable removal of caps and labels so that they can be reused (optional drying, separation and sack filling)
      • Constant concentration and low consumption of caustic, additives and defoamers thanks to the automatic dosing equipment
      • Robust construction and design of many parts in stainless steel to protect your investment

      The MetaPure S decontamination module

      The MetaPure S decontamination module

      The way to food-grade flakes or pellets

      • Drying and heating of the flakes
      • Decontamination of the flakes to remove migrated substances
      • Fixed-phase post-condensation (SSP) to raise the intrinsic viscosity (IV)
      • Highest flexibility after SSP: three options for the end products
        • Inline direct further processing of food-grade flakes into preforms or film possible
        • Alternatively: production of pellets with double the safety by vacuum assisted extrusion (FDA) as an additional cleaning stage

      Due to the fact that flakes can be decontaminated quicker than pellets, the MetaPure S stands out thanks to its lower energy requirement and gentle material handling.

      Benefits to you with the MetaPure S

      • Quick decontamination and IV build-up in the flake
      • FDA and EFSA certificates awarded: Use of up to 100 percent rPET for food packaging
      • Higher yield thanks to a vacuum reactor and heating conveyors as they generate fewer fine particles
      • Energy-saving option: direct connection to machines for further processing (preform, film, fibre)
      • Double the safety in the pellet process: extruder with FDA certification for extra clean pellets (optional)
      • Maintenance of the vacuum system possible during operation

      Our complete-system expertise – Krones as a turnkey supplier and integrator

      Complete recycling plant from a single source

      Pre-sorting (integration)

      Necessary utilities (integration)

      Benefits to you

      • Turnkey solution from Krones: Both washing and decontamination technology from a single source
        • Washing module with a well thought-out concept and excellent washing results
        • Decontamination module with a unique set-up (treatment in solid and liquid phases)
      • Proven technology for PET, also transferable to innovative PO recycling technology


      Everything you need for PET: the closed plastics cycle under one roof

      Can plastic packages be sustainable? Yes, they can, if the process for producing them is resource-economical and if they are kept in a closed cycle. You can achieve both of this with technology from Krones and the services it provides. Starting with material-saving packaging design, then low-energy container production right through to recovery of used plastics: Krones offers PET bottles and other packages a chance for a sustainable, eco-compatible life-cycle – not only once, mind you, but again and again.

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      In the preform production process, every tenth of a second in cycle time and every tenth of a gram in weight count. And there are plenty of potentials for meaningful savings. To exploit them, two things are necessary: firstly comprehensive knowledge of the properties and the behaviour exhibited by the various preform materials, and secondly a profound insight into the production processes involved – both into preform injection-moulding and into the salient aspects governing subsequent container stretch blow-moulding. You will find both of these in the Krones Group.

      MHT AG, a company that has specialised in making PET tools for producing preforms, has been part of the Krones family since 2018. Its performatively excellent high-tech injection-moulding tools

      • image all preform designs and threads in common use;
      • are suitable for almost all machine platforms known on the market;
      • are based on an innovative hot-runner technology developed in-house.

      MHT Mold & Hotrunner Technology AG

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      Individual solutions and complete factories

      Would you like to produce preforms and caps made of recycled or new material? A company of the Krones Group will assist you here as well: the Integrated Plastics Systems AG – briefly IPS. Among others, the following services are offered:

      • From engineering of systems for preform and cap production all the way to turnkey factories
      • Sustainable saving of material and energy consumption
      • Customised container design

      Integrated Plastics Systems AG

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      The ideal package offers persuasively attractive pluses in all situations: in the production process and at the point of sale, during transport and finally during recovery as well. Since Krones has signed up to providing holistically conceived solutions, development work on both bottle design and machine technology goes hand in hand. It is only when both these aspects supplement each other to perfection that the best solutions are arrived at – for producers, consumers and the natural environment alike.

      The packaging designers from Krones

      • advise clients on design, material, product requirements and technical implementation of packages;
      • optimise existing designs in terms of weight, haptics and line efficiency;
      • possess in-depth expertise in the ecological and economic requirements involved, such as material selection, recyclability or weight optimisation.

      A whole bandwidth of different technical solutions can be found in the Krones portfolio for the journey from the preform to the ready-for-sale product. And the innovation process embraced by Krones sees to it that these solutions grow in line with more stringent market requirements and also provide answers to the challenges of tomorrow. One element of crucial importance in this context is the enviro sustainability programme, because it makes sure that any newly developed products, and any upgrades, too, are focused on eco-efficiency and environmental compatibility right from the start.

      Product information Bottle Design

      Sustainability Programme enviro

      Contiform 3 Pro: a stretch blow-moulder series that

      • has been conceived for outstanding energy- and media-efficiency;
      • covers a wide output spectrum;
      • reliably masters a most varied range of process types – on request in one and the same machine;
      • also produces PET bottles made 100 per cent of recyclate.

      Product information Contiform 3 Pro

      Contiform 3 Speed: a high-speed stretch blow-moulder that

      • achieves a station output of up to 2,750 containers an hour;
      • produces containers for still water, CSDs, and sensitive products;
      • saves another max. 15 per cent in energy and compressed-air consumption compared to the Contiform 3 Pro.

      Product information Contiform 3 Speed

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      Contipure AseptBloc: aseptic filling systems that

      • also produce and fill lightweight containers to optimum standards of quality;
      • boast an uninterrupted running time of up to 186 hours;
      • are extremely painstaking in economising on energy consumption;
      • need just one single sterilisation medium – and use this with particular efficiency.

      Innovation Contipure AseptBloc E

      Product information Contipure AseptBloc DN

      Product information Contipure AseptBloc DA

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      Flip Lid: an innovative packaging system

      • that lastingly links lid and bottle, thus
        • avoiding the littering of our natural environment with plastic;
        • saving valuable resources, since the bottles including their lids are recovered;
      • that is suitable for still beverages;
      • that has been developed jointly by Krones and Aptar;
      • for which commercial applications will presumptively be up and running as from 2020.
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      Secondary packaging
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      Secondary packaging

      When it comes to economising on material, then the paramount focus is often on the beverage containers. But if you take a closer look, you can detect quite a bit of savings potential with the secondary packaging as well.

      The Variopac Pro packer offers several options for perceptibly cutting the consumption of shrink film – by upgrades aimed at reducing

      • film thickness down to 25 μm;
      • the amount of film required to be protruding at each side;
      • the amount of film remaining on the reel.

      Product information Variopac Pro

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      The LitePac

      • is created by wrapping two strapping bands around the containers to be packed – thus saving up to 65 per cent of the material costs incurred for a shrink-pack;
      • consumes up to 90 per cent less energy in production and causes up to 70 per cent less waste than shrink-packs;
      • can be produced in the EvoLite packer at high speeds.
      • The strapping bands are produced from homogeneous raw materials and pose no problems at all during recycling.

      Product information LitePac

      What’s more, Krones’ development crew is working on packaging concepts with alternative materials.

      Used PET bottles
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      Used PET bottles

      In a recently announced co-operation agreement, Krones and Stadler Anlagenbau GmbH are lighting the touchpaper for a strong circular economy. The shared aim is to make the benefits of plastic recycling a reality that is as achievable and profitable as possible for customers all over the world. Firstly, by offering their existing, tried-and-tested solutions for sorting and recycling technology as turnkey complete factories from a single source. And secondly by collaborating on the development of new solutions, processes and technologies to do with the sorting and treatment of waste.

      Stadler Anlagenbau GmbH

      • is one of the market leaders in the sorting systems technology
      • has about 450 employees
      • has sold already more than 350 turnkey lines and 2,000 single components worldwide
      • develops and manufactures technology for sorting all kind of different materials – this includes plastic waste, paper, cartons, household waste and commercial waste.

      Stadler Anlagenbau GmbH

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      Buy, drink – and that’s it? Not by a long way! From a consumer’s viewpoint, the lifespan of a PET bottle may seem short. But the bottles themselves know better. After all, they are made of a material with outstanding recycling properties. And that talent can be utilised again and again.

      So it is all the more surprising that billions of PET bottles per year are still not being re-used – meaning a gigantic raw-material source is simply lying fallow. The Ellen MacArthur Foundation estimates the value of plastic waste unused today at 80 to 120 billion dollars a year. An enormous potential just waiting to be tapped. And that’s not all: recycling plants turn waste into new products – and can thus make a substantial contribution towards reducing the global littering problem.

      The MetaPure recycling systems

      • … recycle PET containers
        • into flakes (on request with direct downstream processing into new products).
        • in different material qualities.
        • right up to food-grade PET in line with FDA, EFSA and other certificates.
      • … recycle containers made of polyolefins (PO)
        • into flakes.
        • in the upcycling approach for high-quality re-use.
      • … are available as individual machines – or in the shape of a complete single-sourced recycling plant.

      Product information MetaPure

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