Ensuring Optimal Quality and Transparency in PET Preforms with Polariscope Strain Viewer

Ensuring Optimal Quality and Transparency in PET Preforms with Polariscope Strain Viewer

Polariscope Strain Viewer

Are you tired of compromising on the quality and transparency of PET preforms? Are you looking for the best testing instruments to overcome the challenge of poor transparency of PET preforms? If yes, then you must go with Polariscope Strain Viewer. This is one of the high-quality lab testing instruments designed by the experts at Presto. The NXG model of Polariscope Strain Viewer has been designed with high-quality features that have been designed to test the quality and transparency of PET preforms.

Transparency is a crucial characteristic in PET bottles as it allows consumers to visually inspect the contents, ensuring quality and safety. By testing preforms for transparency, manufacturers can identify any defects or impurities that may affect the clarity of the final product. In this blog, we are going to discuss brief information about the Presto Polariscope strain viewer and the importance of testing the transparency of PET preforms before delivering them to customers.

Importance of testing PET performs transparency before delivery

Transparency is an essential attribute for PET preforms used in various industries, such as packaging and beverage production, where visibility of the contents is crucial.

Only through meticulous examination, can any possible defects or inconsistencies in transparency be detected prior to delivery, enabling manufacturers to maintain strict quality control standards and prevent potential issues downstream during bottle production or filling processes.

The Polariscope Strain Viewer plays a key role in this process by indicating that thorough assessment using advanced testing methods must be conducted to verify if the desired level of transparency has been achieved. This quality testing instrument is best to view strains.

Presto is a leading manufacturer of PET preforms testing instrument and ensure that quality products will be delivered to the customers. Now, let us discuss a brief about the Presto Polariscope strain viewer.

All about Presto Polariscope Strain Viewer

The Presto Polariscope Strain Viewer NXG is a cutting-edge testing instrument with a range of impressive features. It offers two light intensities: monochromatic light and Sodium Lamp, providing flexibility for different testing requirements. This testing instrument includes a standard template for viewing samples at 45º and 90º angles, allowing for accurate strain analysis.

With a large viewing glass area, users can easily observe and analyze the preforms for any strain or defects. The strain viewer is equipped with a high-resolution touch screen that features auto-detection of the angle, ensuring precise measurements and reducing human error. Manufacturers can easily identify the crystallization defects in PET preforms with the help of this quality testing instrument.

One notable feature is the inclusion of a standard reference defect recipe with possible reason/action in the software. This feature allows users to compare the test preform image with the standard defect chart, facilitating quick identification of defects and providing guidance on appropriate actions to address the issues. The strain viewer also generates a comprehensive test report that includes the reason for the defect along with suggested actions for correction.

Now, let us discuss briefly the features of the Presto Polariscope Strain Viewer.

Features of Presto Polariscope Strain Viewer

Presto Polariscope Strain Viewer combines advanced technology and user-friendly features to deliver precise and comprehensive testing results for PET preforms. Below we have listed the features of this quality testing instrument:

  • Two light intensities are offered: Monochromatic light and Sodium Lamp.

  • Sharper and clearer optical viewing experience.

  • Standard Template for viewing samples at 45º and 90º angles.

  • Large Viewing glass area.

  • High-resolution Touch Screen with auto-detection of angle

  • Standard reference defect recipe with possible reason/action in software.

  • Select a feature to compare the test preform image with the standard defect chart.

  • Test Report includes Reason For Defect Along With Suggested Action.

  • Inbuilt hardware & PLC software.

  • Easy Data Management. Users can create product identification, company, check by details etc.

  • Test Report in PDF format


Technical specifications of Presto Polariscope Strain Viewer

  • Display: Large High resolution (7” Touch Screen)

  • Viewing Area: 260 X 240 mm

  • Power: 220V, Single phase, 50 Hz


  • CFL Light

  • sodium Light

Measuring Angle

  • 45º and 90º (Auto Detect)

  • Standard Template: 1

  • Defect Chart: 1

  • Material: Mild Steel

  • Finish: Powder-coated Havel Gray/Blue

  • Dimensions:  L 520 x W 585 x H 770 mm corrosion-resistant finish

With these high-end features and technical specifications, manufacturers can easily conduct transparency tests on the materials. You can even examine the photo-elasticity of preforms with Polariscope Strain Viewer.


Ensuring optimal quality and transparency in PET preforms is of utmost importance in the manufacturing industry. With technological advancements, this NXG model of Polariscope strain viewer has revolutionized this process by providing an accurate and efficient method for assessing the quality of these preforms.

Moreover, its user-friendly interface provides precise measurements with minimal human error, enhancing overall operational efficiency on production lines. If you need a free sample testing session for the use of this quality testing equipment then give us a call at +91-9210 903 903 or email us at info@prestogroup.com. Our team of technical experts will consult you regarding all your needs and queries.

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