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Edge Crush Test (ECT)

DIN EN ISO 3037 or TAPPI T 811

Purpose of the test

  • The edge crush test (ECT) to DIN EN ISO 3037 or TAPPI T 811 provides information on the strength of corrugated cardboard with flutes positioned vertically. It is important that force application to the specimen is exactly perpendicular during these tests.
  • The edge crush resistance is included in the McKee formula and is therefore of particular importance for quality control in corrugated cardboard factories. An essential requirement of this test is that the specimen has clean, perpendicular edges and the material must be free of existing damage. Knives are not ideal for cutting specimens and lever shears are not suitable. Good results are achieved with a twin-blade circular saw.

Edge Crush Test (ECT) with ZwickRoell

  • Precision-guided compression plates ensure extremely high lateral stiffness, guaranteeing reproducible test values.
  • The compression plates are suitable for the ring crush test (RCT), the flat crush test (FCT), the edge crush test (ECT) and the corrugating medium test (CMT).
  • An essential requirement of this test is that the specimen has clean, perpendicular edges and the material must be free of existing damage. ZwickRoell's twin-bladed circular saw makes optimum specimen preparation easy.

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Related Products

Testing machine with 4 measurement axes

Our static materials testing machines are designed for universal application.This makes it easy to implement individually tailored testing solutions in addition to our standard solutions.

With our AllroundLine materials testing machine with four measuring axes, all relevant tests for predicting the compression strength of cardboard can be determined in a single machine, and various tests can be performed in paper testingIn this example,

  • the ECT, FCT, CMT and RCT crush tests are performed in the upper test area.
  • In the lower test area (from left to right), the SCT, the tensile test, and the 4-point flexure test are performed.
  • Expansion options through additional slots, extensometers, safety doors and other accessories.

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Name Type Size Download
  • Industry brochure: Paper & Cardboard PDF 4 MB
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