• Inspection Equipment

  Empty Glass Bottle Inspection

Empty Glass Imperfections

Imperfections in empty glass containers, either returnable or even straight from the manufacturer, can easily result in damaged or wasted product. Empty bottle inspection occurs between the washer and the filler, ensuring that no residual liquid, foreign objects, or damaged glass comes in contact with the product.

Common Glass Flaws


  • Damaged glass
  • Chipped base
    • Cracked thread
  • Uneven finish
    • Scuffed sidewalls
  • Foreign objects
    • Residual liquid or caustic

    Types of Inspection

    OUTER SIDEWALL INSPECTION

    Outer sidewall refers to the outside surface of a container, usually below the thread and above the base. This outer surface can often become visibly scuffed or chipped, especially in returnable glass or PET. While outer sidewall damages are unlikely to corrupt the product itself, external container flaws are the indications of low quality standards most obvious to the end consumer.

    Inspection Technology Overview


    • Damaged glass
  • Chipped base
    • Cracked thread
  • Uneven finish
    • Scuffed sidewalls
  • Foreign objects
    • Residual liquid or caustic

    Sidewall Bottle Rotator


    Twelve images are captured at 30 degree intervals while the bottles rotate past the inspection window, providing the most thorough inspection and fewest number of false rejects.

    Bottles rotate against each other as they pass through the inspection field, allowing for 360 degree detection.

    LED strobe passes high intensity light through the empty containers to a high speed digital camera where an image is captured and processed through a series of algorithms.

    BASE INSPECTION

    The base of a bottle receives the most amount of wear during the container's life, and easily sustains scuffing or chips. Thorough inspection of both the inside and outside of an empty container's base prevents flawed packaging and contaminated product from reaching the market.

    Inspection Technology Overview


    • High resolution CCD camera
  • Up to 6 different inspection zones
    • Detection of flaws both inside and outside of the container
  • Adjustable filters for embossing and varying bottle designs
    • Adjustable filters for embossing and varying bottle designs
  • Cellophane / brightfield detection
  • INNER SIDEWALL INSPECTION

    The bottle's inner sidewall is made up of all the inside surfaces from the base up through the neck. Damages in these surfaces can be difficult to see with the human eye, but can easily grow mold internally or shed glass into the product after it has been filled.

    Inspection Technology Overview


    • High resolution CCD camera
  • Up to 6 different inspection zones
    • Detection of flaws behind ceramic labels or embossing

    THREAD INSPECTION

    A bottle's thread refers to the molding at the top of the neck where the cap may be screwed in place. Incorrectly formed or damaged thread can result in capping failures, spillage, and contaminated product.

    Inspection Technology Overview


    • High resolution CCD camera
  • 5 inspection zones
    • Up to 720 degree inspection tracking
  • Auto-centering and auto-tracking functions
    • Adaptable for Press, Roll, and Twist finishes

    FINISH INSPECTION

    The finish of a bottle or container is the very top surface where the cap is applied. For returnable glass especially, this surface can easily chip while in the market or during the washing process and cause problems with proper capping and sealing. If a chipped finish does make its way back out into the market, sharp edges can harm the end consumer.

    Inspection Technology Overview


    • High resolution CCD camera
  • Long-life LED strobe
  • RESIDUAL LIQUID & FOREIGN OBJECT INSPECTION

    Without additional inspection, leftover caustic and objects (like mold, cigarette butts, or straws) not shaken out during the washing process can remain inside of returnable containers through the filler and get sent back out to the market.

    Inspection Technology Overview


    Radio Frequency (RF) RLD Technology Infrared (IR) RLD Technology

    Detects smallest amounts of caustic, even once it has dried.

    Detects oil, paint, gasoline, and other liquids and objects with low conductivity.