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Table Of Content
    capLAB & capLAB+ ¦ PackSys Global AG ¦ closure in-line pull-off tester
    capLAB & capLAB+ Quality inspection
    1. PackSys Global
    2. Beverage & Specialties
    3. Beverage Closures
    4. Inspection of Plastic Closures
    5. capLAB
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    The new quality inspection with capLAB

    The fully automatic in-line pull-off tester

    Quality inspection today
    The majority of plastic beverage closures undergo optical quality inspection by inline camera systems. Vision inspection does not discover potential issues with a closure’s functionality which can affect its performance during or after the application to the bottle. Some defects might create an error on the filling line (capping process). Each stop on a filling line can cause huge losses. The industry standard practice for checking the functionality of closures is to periodically take a specified quantity of caps to a laboratory and analyze them. This is time-consuming so it is only done a few times each day. If defective closures are found during this process, the closures produced since the last laboratory check are normally scrapped. On the highest speed lines, the quantity produced between laboratory checks can exceed 1 million closures.

    This versatile machine is easily integrated into any production line due to its independent control and optional vision inspection system. The TEM gives flexibility in the process sequence thanks to its modular design for S/F or F/S of TE band. It also allows a large variety of cap dimensions, including sport caps. 

    Quality inspection by capLAB
    capLAB is an in-line, automatic integrated unit for testing the functionality of a closure’s tamper evident (TE) band. In optional combination with a vision inspection system that can select closures by cavity number, capLAB takes samples from the slitting/folding machine outfeed and measures in-line the pull-off strength of the closure’s TE band. The test frequency can either be set by quantity, e.g. every 100’000 caps, or time, e.g. every 3 hours. The closures to be tested can be selected randomly, according to the spindles of the slitting machine or by cavity number of the production mould and by quantity. In addition, a test sequence can be triggered manually, e.g. at the start of a production shift.

    capLAB can also be connected in-line to a system producing closures with molded TE bands rather than slit TE bands.

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    Your Benefits

    • Reduced labor cost

    • Standardized measurement, no differences between employees A and B

    • Minimized risk of producing bad quality closures between quality checks

    • The closures are always tested under the same conditions (crystallization, temperature, etc.).

    • Closed loop interaction – ensures continuous stable closure quality

    • Database link to production data server / QC system

    capLAB+

    With the extended version capLAB+, additional tests corresponding to the local markets can be made. This makes it possible to check the connections (tether) for the target values defined by the EU Commission.

    In addition, with capLAB+ the closures can be tested for leaking.

    Closed loop
    Based on the values found by capLAB corrective actions may be needed. When a slitting machine is forming the bridges, knife temperature settings would be automatically changed to keep the pull values in target range, means a fully automated process for constant cap quality over lifetime of a knife. Communication to the moulding machine/mould will be available to stop the line in case of a major quality defect. In cases where the root cause of unacceptable TE band performance may be linked to a specific cavity on a mould or spindle on a slitting machine, the operator will be informed to address the root cause directly.

    Data Management
    capLAB contains a separate screen for its operation and data analysis. In addition, the database also can be transferred easily to onsite production data monitoring or QC systems. Customized screens showing the measurements per cavity can be accessed directly at the user interface of the injection moulding machine (available for dedicated brands).

    Layout
    With the compact design it can be integrated into existing lines with an integrated vision inspection system from various suppliers. Numerous layout options are possible.

    pull of te-ban of cap on capLAB machine

    Technical Data

     

    Tamper evident band tear-off value

    capLAB

    Yes

    capLAB+

    Yes

    Tether tear-off value No Yes
    Leak test  No Yes
    Cavity check Yes Yes
    Spindle check Yes Yes
    Check by quantity / time Yes Yes

     

    capLAB Video

    cap in a capLAB machine

    Download

    Flyer capLAB & capLAB+

    Flyer capLAB & capLAB+

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