Manufacturers from the rigid paper & packaging industry have to make sure that the material used in the construction of packaging items is durable enough to withstand falling & other forces that may destroy the packaging material causing harm to the item packed inside. This leads to altercations in consumer satisfaction followed by degrading brand reputation.
This makes it extremely necessary for manufacturers of the rigid packaging industry to assess the durable quality of such packaging materials. There are numerous tests for quality assessment, one such important test to assess the strength of the edges of such materials is known as the edge crush test.
It becomes excruciatingly difficult for a manufacturer to assess the quality of the edges of the constructed product or the material. The Presto Group has offered an aid to this difficulty of manufacturers called the edge crush tester.
The instrument is designed with an approach of helping manufacturers from the rigid packaging industry to create & develop durable materials by assessing their edge strength. The instrument achieves high levels of accuracy in determining the results due to its three-way testing technology.
Let us understand better by taking a look at the working principle of the edge crush tester.
Working Mechanism of the Edge Crush Tester
The edge crush test calculator assesses the durability of the edges of the raw material by measuring them into three different methodologies which are:
1. Edge Crush Test – Corrugated sheet of 3-5 plies
2. Flat Crush Test – Corrugated sheet 5-7 plies
3. Ring Crush Test
Before conducting the test it is important to cut the sample as per the testing methodology. After the specimen is prepared, it is securely clamped between the grippers of the edge crush test calculator. Ensuring a firm clamp is crucial to prevent any movement of the specimen during testing.
For performing accurate edge crush test on the specimen, the specimen should be positioned with the edge side facing upwards towards the upper jaw.
Once the specimen is positioned as per the test and clamped, the grippers/jaws use a sandwich method to compress the specimen. The speed at which the motorized compression plate crushes the specimen is 12.5mm per minute as mentioned in the designated standards.
The instrument withstands compression as per its durability and then submits to the crushing of the compression plate. The movement of the compression plate is smoothly operated due to the provision of the circular lead screw in the edge crush test units.
Once the specimen is crushed, the load value along with the deformation caused is indicated on the microprocessor-based display attached to the instrument to assist the manufacturer in keeping track of the recordings without any hassle.
Once the result is recorded, the operator can simply apply the edge crush test formula which is the weight per distance where the unit used for weight is pounds & the unit used for distance is linear inches henceforth, the edge crush test formula = lbs/linear inches.
This is how the precisely engineered edge crush test units perform three-way testing of materials and ensure precisely accurate results consistently. There are various other features included in the instrument to aid the manufacturer in achieving maximum accuracy.
Key Features of Edge Crush Tester
The edge crush tester has various features to aid the manufacturer in performing hassle-free testing and achieving maximum levels of accuracy over & over again.
The edge crush tester is offered by the Presto Group with three different fixtures/grippers to assist the manufacturer in conducting three different types of tests with absolute facile.
The most prominent feature of the edge crush tester is the provision of a limit safety switch which ensures that the motorized compression does not overtravel once the testing is done and the specimen is fully deformed. This allows the operator to do operations without being present at all times and safeguards the instrument from any kind of hazard due to overtravelling.
The microprocessor-based display ensures an accurate indication of achieved results and enables the operator to easily keep track of the recorded results and critically analyze them with previously achieved results.
The stainless steel & mild steel construction with a 7-layered powder-coated paint ensures the long-term durability of the edge crush tester by making it rustproof through anti-corrosive properties.
The feather touch controls included in the edge crush test units make testing extremely simple & easy for the manufacturer as it promotes single-handed operations.
There are certain questions asked by manufacturers from the rigid packaging industry that are required to be addressed for a better evaluation of the instrument.
FAQs Regarding Edge Crush Tester
Ques. What is the difference between the bursting test & the edge crush test?
Ans. While both the bursting and edge crush tests aim to evaluate the durability of the specimen, they differ significantly in their methodologies and objectives. The bursting strength test measures the specimen's ability to resist rupturing, assessing its overall strength under pressure. Conversely, the edge crush test focuses on evaluating the resilience of the edges of the paper or corrugated sheet against compression forces, providing insights into its structural integrity and performance in handling.
Ques. How is edge crush strength measured?
Ans. The edge crush strength is simply measured by applying a simple edge crush test formula on the derived results from testing with an edge crush tester. The formula for the measurement of the edge crush strength = lbs / linear inches.
Ques. Where can we buy edge crush tester from?
Ans. To get your hands on the amazing lab testing instrument, you can simply visit our website or you can directly contact us to place an order via just a phone call at +91 9210903903 or e-mail us at info@prestogroup.com. We will be extremely happy to serve you with the finest lab testing instruments and aid your testing problems with absolute ease.
