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Polariscope Strain Viewer

PPS - 400

Presto Stantest introduces Polariscope, a preform strain viewing testing machine which is used to measure the quality of the preforms. The working principle of the instrument indicates that if there is any change in the refractive index of a material, it will show the strains in the Preforms which will severely affect the quality of the PET bottles.

Presto manufactures Polariscope in different designs and sizes like Polariscope for performs and Polariscope for glasses to meet the requirement of different customers



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    • Viewing Area: 260 x 240 mm
    • Display: Pictorial using preform defect chart.
    • Power: 220V , Single phase, 50 Hz
    • Lights: CFL Light (Monochromatic light) Sodium Light
    • Standard template Measuring Angle: 45º and 90º

    • Two light intensity offered: Monochromatic light and Sodium Lamp.
    • Sharper and clearer optical viewing experience.
    • Standard Template for viewing sample at 45º and 90º angle.
    • Large Viewing glass area.






Reviews of Polariscope Strain Viewer

  1. Ashutosh Shandilya
    20 Feb, 2016

    Identifying the defects in Preforms has now become easy with Presto’s Polariscope. Analyzing the defects under natural light is difficult to see. It is a single step process that helps to measure the quality of the preform by determining the defect under polarized light.

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