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Improve The Quality of Recovered Glass


Glass is an easily recyclable material if processors can accurately and cost effectively separate clean, furnace-ready glass cullet from other commingled and/ or contaminated waste, such as ceramics and metals.

The X-STREAM-G high volume glass sorting and separating system uses proven X-ray Fluorescence (XRF) technology to sort glass by highly specific material chemistry, providing the most economically viable solution to identify and extract specific cullet contaminants including:

  • Leaded Crystal
  • Glass Ceramic, PyroCeram, High Temp Glass
  • Cu, W, Al and other metals
  • Pb, Br, Sn, Sb and other toxic elements

pile of glass

X-STREAM-G Advantages:

  • Rapidly determine by chemistry - not density
  • Capacities of many tons per hour available
  • Flexibility to handle new applications to meet market demands
  • "See" a wider range of materials
  • Industrially hardened and reliable for low CoO

Glass Bottles

Glass Bottles

X-STREAM-G Typical Performance

The X-STREAM-G is robustly engineered to process high volumes of materials, with minimal loss of recyclable cullet. Processing volumes are scalable to meet client requirements. Typical analysis time is on the order of a few milliseconds, with high levels of accuracy.

  • 5, 10 or 20 tons per hour
  • Performs accurate analysis on wet or dry cullet
  • Performs well on cross contaminated process material - commingled glass, metal, plastics, paper, etc.
  • >99% rejection of glass cullet at an average piece size of >1 inch2

X-STREAM-G Operation Mode

The X-STREAM-G can be placed before or after crushing equipment and detects glass contaminants as the materials move onto slide-ways or conveyors and then diverts them from the processing line.

  1. Material is conveyed to the XRF sensing area.
  2. Spectral acquisitions are individually obtained, and frequently updated.
  3. Spectrum is processed and signal is sent to sorting actuators when indicator intensity threshold is exceeded.
  4. Reject material is diverted to reject bin or takeaway conveyor.

X-STREAM-G Performance Data

Glass recyclers/processors need to detect small pieces of glass ceramic and leaded crystal in cullet. Specific elemental markers have been used to successfully identify and remove these materials from the clean cullet.

X-STREAM Glass Performance Data
Spectral comparison of leaded crystal, glass ceramic, and container glass. Taken under typical dwell times of <100 ms.

Olympus IMS
Products used for this application

The X-STREAM and X-STREAM: Glass are high-speed, automated sorting systems for automatic identification and sorting of material by chemical composition. Take metal, glass and mineral recycling to a new level of high speed, accuracy and profitability.
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