How to Prepare a Testing Sample for Tearing Strength Tester?

The tearing strength of the material plays a crucial role in determining its quality. The tear resistance test of the material will help you to check whether your product can withstand the tearing force or not. Presto tearing strength tester is one of the widely used testing equipment that helps you to assess the ability of a material to withstand tearing force. This laboratory testing instrument can easily be used in various industries like fabrics, plastic films, or other similar materials. Here in this blog, we are going to provide you with brief information about tearing strength tester and how you can easily prepare your testing sample with the help of this lab testing equipment.

Tearing strength tester: Best testing equipment for measuring tearing strength

Tearing strength tester is one of the proficient and best-selling testing equipment from Presto that helps you in the quality assessment process. This sample testing equipment from Presto contributes to minimizing errors by providing the accurate value of tearing resistance strength. This testing equipment consists of a pendulum pivoted on anti-friction ball bearings on a vertical bracket fixed on a rigid metallic base. The test specimen in the shape of a rectangular piece is held between two Jaws, one of which is mounted on the pendulum and the other is mounted on the Vertical Arm. The Jaws clamps are mounted in such a manner that their holding faces are aligned with each other when the pendulum is locked in its raised position. An adjustable knife is also mounted on the Vertical Arm. It is centered between the two Jaws for making the initial slit in the test specimen. The pendulum is released by lifting a brake release lever. This action causes the test specimen to tears. The tearing strength is indicated on a calibrated scale fitted on the pendulum by a pointer. A Set of calibrated check weights are supplied with the tester for Verification of the scale at 1600, 3200, and 6400 grams of capacities.

Key features of tearing strength tester

This accurate lab testing equipment will let you deliver your products without any errors. You can easily determine the tearing force from scale reading and pendulum capacity. The specimen will be cut through warp direction and average tearing force will be calculated using a standardized formula. Here we have created a list of features of tearing strength tester.

• The instrument consists of a falling pendulum to cover various measuring ranges.
• It comes with a high-quality rugged structure with a corrosion-resistant main body.
• Single-handed hassle-free operation.
• Highly accurate testing results under multiple pendulum weights.
• In-built calibration weights assigned.
• Falling-pendulum type instrument.

These are the key features of a tearing strength tester. Now, let us focus on its technical specifications.

Technical Specifications:-

• Capacity: 1600 grams, 3200 grams, 6400 grams
• Slit Size: 20 mm
• Scale Reading: 0 to 100% of range
• Least Count of Scale: 1%
• Calibration Check Weight: At 1600 grams, At 3200 grams, At 6400 grams
• Clamp Surfaces of Each Clamp: L-35.5mm x M -15.5mm
• Distance between both Clamps: 2.5 ± 0.25mm
• Tearing Distance: 43±0.15mm
• Standards: ASTM D1424-09(2013), ASTM D624 – 00(2012), ASTM D1776, ASTM D689

These are the features and technical specifications of this lab testing instrument. Now, let us discuss how you can easily prepare your testing sample for the tearing strength test.

How to prepare the sample for tearing strength test?

If you want to conduct the tearing strength test with the help of our testing instrument, then we have come up with 4 easy steps to prepare the specimen. You can read those steps below.

• Take a standard template and prepare the specimens with it.
• Cut the WARP SET with short dimensions parallel to weft yarns and WEFT SET with short dimensions parallel to warp yarns.
• While cutting the test specimens take care to align the yarns running in a short direction parallel to the template.
• Each specimen of warp set should have different warp yarns and each specimen of weft set should have different weft yarns.

In this way, you can easily prepare the sample for the tearing strength test. You can also install the tearing strength tester with 5 easy steps. If you wish to get more information about this testing instrument, then you can give us a call at +91 9210903903 or email us at info@prestogroup.com. We will surely assist you with your queries.