Twin Folding Tester for Paper and Board

Twin Folding Tester for Paper and Board

Determines the folding resistance of paper, according to the Louis Schopper principle

  • Features


    • Standard device designed for security papers
    • Automatic stop after sample break
    • Standard version for paper up to 0.25 mm thickness, alternatively available for board
    • Measurement and display of the folding head temperature optionally available


    Description

    The device measures the number of folds until the sample breaks. It is possible to test two samples simultaneously.


    Test description

    Two samples are clamped in the folding heads for a simultaneous test. The spring supported sample supports are pulled apart, so that the samples are clamped at the specified force. After pushing the start button, the folding knives begin to guide the sample around the sapphire supported folding rolls. That way, the samples are folded on both sides at a radius of 0.25 mm. If one sample breaks, the folding process of the second sample continues until it breaks too. The movements of the folding knives stop after the test, so that the samples can be removed. The device records and displays the number of folds until the sample breaks.


    Specifications

    Versions: papers up to 0.25 mm thickness / boards up to 1,4 mm thickness
    • Spring force min. 7.55 N / max. 9.81 N
    • Testing length: 90 mm
    • Sample length: 100 mm
    • Sample width: 15 mm
    • Speed: 115 strokes/min   
    • Digital display with statistic functions
    • RS 232 interface for result transfer
    • Compatible with MiniStat and Probenet


    Technical data

    Electricity: 220 -230 V, 50 Hz or 110 V, 60 Hz 
    Water supply: None
    Compressed air: None
    Dimensions (WxDxH): 53x49x34 cm
    Net weight: 50 kg
    Gross weight: 80 kg

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