Stemin repeatedly relies on STEINERT technology

The aluminum recycling specialist Stemin SpA, based in northern Italy, processes scrap metal into high-quality aluminium. Olivo Foglieni, CEO of the FECS holding company belonging to Stemin, once again opts for STEINERTS sorting technology. The dry density separation with X-ray transmission (XRT) for aluminum production ensures the highest purity and is so reliable and robust that downtimes are not an issue. Under the direction of Foglieni, Stemin produces up to 70,000 tons of secondary aluminum per year, which meets the highest quality requirements. After sorting, the aluminum is ready for the furnace – and goes to the group’s own aluminum foundry for further processing.

Foglieni said in an interview with Steinert: “I don’t think I need to explain how important it is for us that the X-ray unit and the sorting quality are absolutely reliable. Both are essential for the smooth process between sorting and further use of the aluminum product. Failures threaten the entire supply chain. We are safe here with Steinert – our many years of experience show that.”

STEINERT XSST EVO 5.0 with a 4-year guarantee since 2020

The STEINERT sorting systems at Stemin. Photo: Stemin

Stemin mainly processes aluminum profiles and sheets as well as aluminum engine parts such as crankcases. “Each of our scrap has special requirements and depending on the input material, it is important to separate magnesium or heavy metals such as copper. This is a challenge that we are taking on – always with the aim of further enhancing the value of the metal,” says Foglieni. Stemin has relied on the reliability and operational safety of STEINERT sorting systems for years. Foglieni was one of the first to use the “EVO 5.0 generation” and benefited from its competitive advantages.

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In particular, the X-ray source and the XRT X-ray sensors are essential for the efficient operation of the facility, and the EVO generation offers Stemin even more longevity here. Steinert has been offering its customers a guarantee of 20,000 operating hours on the high-quality X-ray sources since the beginning of 2020, thereby documenting the robustness of the selected components of the EVO generation.

Consistently high precision

The automatic X-Ray Monitoring (AXM) and the calibration of the X-ray sensors help to ensure consistently high detection precision. The result is equally consistently high detection and sorting quality over the entire service life of the X-ray components. A demanding task at Stemin is the depletion of magnesium in the aluminum scrap to be processed. This task is accomplished Multilayer Data Evaluation (MDE). The MDE enables the detection and delimitation of compound objects and enables high-resolution object detection and parallel classifications of different detection tasks at the same time.

Olivio Foglieni has the direct comparison, so in the past few years he exchanged a total of 4 machines from a competitor for Steinert X-ray sorting technology. “The biggest difference compared to others is the reliability of the machines. We chose Steinert because their continuous research and development in the field of metal recycling keeps improving the quality of the sorting and the more efficient sorting systems help us to produce the grades we need. To date, this decision has proven to be the right one,” adds the company director.

Cooperation and good customer service

In addition to the technical qualities of the STEINERT XSST EVO 5.0 convinced Foglieni above all of the close contact between his company and STEINERT customer service. “The reliability of the technology and support nearby is an absolute must. We are very satisfied with the customer service and our Italian representative who solves our problems in real time.”

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Sorting with X-ray transmission – STEINERT XSS T EVO 5.0

In a transmitting process, material-dependent differences in the absorption of X-rays are detected, classified and used for sorting into density classes. The degree of absorption of the X-rays always depends on the substance density of an object. The larger the atomic mass, the more radiation is absorbed. Following the detection, the determinate metal is then separated from others in the material flow.

STEINERT at the IFAT 2022 in Munich

Visit STEINERT from May 30th to June 3rd, 2022 in areas 550 + 551 in Hall B6. If you wish, please make an appointment in advance ([email protected]).

Picture at the top: Durable and robust: STEINERT XSST EVO 5.0. Photo: STEINERT