Importance of testing edge crush strength of corrugated boxes

Importance of testing edge crush strength of corrugated boxes

In the corrugated box industry, edge crush strength (ECT) is one of the most important performance tests. It is a measure of the ability of a corrugated board to resist crushing under pressure. The test is conducted by applying pressure to the edge of a corrugated board until it crushes. Edge crush strength of the material is considered to be one of the most important factors that needed to be considered to ensure that the material delivered will be of high quality. Presto is a leading manufacturer of edge crush tester digital models and offers this quality lab testing equipment at the best and most affordable prices. Here in this blog, we are going to discuss the importance of testing the edge crush strength of corrugated boxes and other related materials. We will also focus on how the Presto edge crush tester helps to test the crushing strength of materials. So, let us get started!

What is edge crush strength and why it is important to test it?

Edge crush strength is a measure of the ability of a material to resist crushing. It is an important property for corrugated boxes, as it indicates the amount of pressure that the box can withstand without collapsing.

There are two main methods for testing edge crush strength: the ring crush test and the flat crush test. In the ring crush test, a sample of material is formed into a ring shape and then crushed between two platens. The force required to crush the ring is then measured.

In the flat crush test, a sample of material is placed on a flat surface and then crushed by a plunger. The force required to flatten the sample is then measured. It is important to test the edge crush strength of corrugated boxes because this indicates how well they will withstand being handled and stacked during shipping and storage. Boxes with high edge crush strength are less likely to be damaged during these activities, which can ultimately lead to reduced product damage and better customer satisfaction.

You can easily provide the best quality packaging material to clients with the help of the edge crush strength of the materials. Now, let us discuss how the Presto ECT tester is helpful in conducting edge crush tests on the materials.

How Presto ECT tester is helpful in measuring the edge crush strength of corrugated boxes?

Presto offers a high-quality digital edge crush tester that is important to test the edge crush strength of corrugated boxes and other related materials. This lab testing equipment will easily test the compression strength of these materials and ensure that the product delivered will be of high quality. his is one of the common tests that will help to determine which box suits best for your needs. The edge compression strength test helps you determine the quality of corrugated board before it is made into boxes. This way, companies can ensure that they deliver only high-quality products to customers.

This testing instrument will measure the edge-wise compression strength easily on the basis of several items like the dimension and size of the box and what material was used in its creation. Thus, to prevent the edge crush problem, you can effectively make use of this testing machine. It comes with a movable plate that applies pressure from the top.  You can also read about how you can easily evaluate the strength of corrugated boxes with a Presto ECT tester.

Features of Presto ECT tester

The Presto ECT tester has been designed in accordance with industry standards that make it easy for the manufacturers to conduct edge crush strength of materials. Below we have listed the features of the Presto ECT tester:

  • Display for compression strength of test specimen

  • Separate fixtures for ring crush, edge crush, and flat crush test.

  • Highly accurate test results under a compression force

  • Strong gripping clamps.

  • Bright LED display

  • Inbuilt calibration facility

  • Microprocessor-based display for accurate test results

  • Feather touch controls

Technical Specifications of Presto ECT tester

  • Maximum Load range: 100 kgf

  • Test Speed Range: 12.5 ± 2.5 mm/min

  • Load Monitoring: Peak Load indicator with digital readout and peak hold feature

  • Load Sensor: S-type Load Cell

  • Load accuracy: ±3% full scale (with master load)

  • Deflection: ±3% full scale

  • Least count: 100 kgf/100gm

  • Load Cell Overload safety: 80% of the total load

  • Motor: ¼ HP, 30 rpm single-phase motor

  • Safety Feature: Up and down fixed and movable limit switch rings

  • Over Load relay contact rating: Potential free relay 5 Amp. 220 V AC single phase

  • Earthing Required: Proper Earthing required corresponding to not more than 4 V AC with respect to neutral

  • Sample Size for ECT: 50 + 1 mm X 30 + 1 mm

  • Block Size: 20*20 mm

With these high-end features and technical specifications of ECT tester, one can easily conduct edge crush strength tests on the materials and ensure that quality products will be delivered. You can easily analyze the strength of corrugated boxes against crushing, with a Presto ECT tester. If you want to conduct a free sample testing session regarding this quality lab testing equipment then give us a call at +91-9210903903 or email us at Our team of technical experts will consult you regarding all your needs and queries.