The glass recycling company

Core Values

  • Durability

    GRL opts for durable entrepreneurship by continuously aiming for economically and ecologically balanced processing methods. We continuously invest in our team of motivated and enthusiastic co-workers in order to offer you recognition and certainty.

  • Quality
    Quality is the key word for our services. Not only the quality of our finished products, but also of our processing methods and services.
    Quality starts with collecting the glass and sorting it well. Hence, we find sensibilisation and training of our suppliers, solid containers, an organised maintenance service, special flat glass containers and customized collection rounds very important. Storing correctly and in an organised manner is one of the main conditions in order to start the processing in an optimal way. Well-trained people and state-of-the-art machinery render a very high quality finished product.
    Quality is like a chain: each link contributes to the final result. We expect all our co-workers to make a contribution.
  • Processing

    The processing is a completely dry process that consists of several phases.

    The first phase is the manual processing. The incoming flow of glass is sorted according to its grain size and divided over different conveyor belts. Then, in the manual pre-sorting station, larger contaminants are removed from the flow of glass by handpickers. Pet bottles, plastic bags, newspapers and magazines, ceramics, stone, porcelain and other foreign domestic waste are carefully removed.

    The second phase is a crushing process: a crusher is used to adjust the grain size of the glass.

    The third phase consists of removing all metals, ferrous as well as non-ferrous.

    The final, fourth phase is the most complex and is called the optical process. The glass pieces are sorted into different flows according the grain size. A double battery of optical sorting machines removes ceramics, stone and porcelain from the flow. These sorting machines are equiped with CCD cameras and high-tech sensors using white light, laser light and infrared backlight. When impurities are detected, that are impenetrable to the light, and the colour of the glass pieces has been defined, the evaluating electronic system triggers a blowout command at the appropriate magnet valve. The blowout jets, arranged above the material flow, eject the impurity at precisely the right moment. The glass pieces are then subject to an optical-mechanical colour separation based on the same technology where the differently coloured glass pieces are taken from the flow. This fully automated colour separation is merely a colour enhancement, not a full colour separation of mixed-colour glass.

    In-between the different phases of the process, lighter parts such as paper and plastics are separated from the glass by means of air-suction techniques.

    An experienced and professional team that supervises and adjusts the process based on the results of the online quality control automatically controls the full process.

    In short: highly modern and efficient machinery leads to maximum recycling and high-quality finished products.