Edge Crush Tester (ECT/RCT/FCT)

An ECT tester (short for Edge Crush Tester) is a type of testing equipment used to measure the edge-wise compressive strength of corrugated cardboard. This test is crucial for packaging manufacturers because it helps determine how much pressure the board can handle before collapsing. Simply put, it gives you insight into how sturdy your boxes are — which matters a lot when shipping or stacking goods.

An Edge Crush Resistance Tester measures the amount of force a piece of corrugated board can withstand when pressure is applied to its edge. This test, also known as the Edge Crush Test (ECT), simulates real-world stacking pressure, so businesses can predict how their packaging will perform during transport and storage.

When selecting an edge crush tester machine, consider your testing volume, required accuracy, and whether you prefer a digital or manual setup. For frequent, high-precision testing, a digital edge crush tester is ideal. Look for trusted suppliers who offer service support, calibration, and warranty options to make the most of your investment.

A digital edge crush tester offers more precision and ease of use compared to manual versions. It often features a digital display, automatic test cycle, and real-time data recording. This helps reduce human error and provides consistent, reliable results. Manual testers are more affordable but may require more hands-on effort and calibration.

The edge crush test is highly regarded because it closely replicates the real-world stress boxes face during shipping and storage. Unlike flat crush or burst tests, the ECT directly tells you how well a box will perform when stacked — which is often the most critical condition in distribution chains.