Top-load/column crush testing is one of the most accurate methods for reliably determining container integrity. Manufacturers of all kinds of containers especially plastics must ensure that products can withstand certain expected forces that will be experienced during capping / filling process or warehouse stacking.
This test measures the compressive strength of containers to ensure it does not deform or break when subjected to axial forces during the process of filling, closure, storage or transportation.
There is an ever-increasing need to reduce the weight of plastics that are utilized during packaging, but without compromising on strength and performance.
Top load testing is widely performed in PET bottle manufacturing industries. PET bottles have various applications such as storing liquids, medicines, powder, capsules, etc. Irrespective of the application there should be certain minimum strength to resist deformity. In case of a failure the bottle needs to be redesigned. This test determines weak points in a bottle, especially when it falls while it is carrying weight. Apart from that, this test detects the flaws in blow moulding line if buckling is repeated occurring on the same point.
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