Mecmesin coefficient of friction (COF) tester

Tuesday, 05 April, 2011 | Supplied by: SI Instruments

The Mecmesin coefficient of friction (COF) tester can be used to improve production methods and reduce wastage by assessing the ‘slip’ properties of plastic film, paper and packaging products.

Whenever two surfaces move across one another there is an element of friction involved. The types of materials used determine how smoothly they move together, as some inherently have the tendency to adhere to other surface whereas others slide apart too easily. For example, packaging on a production line must move efficiently from one process to the next. If the packaging has undergone a coating process, this will have undoubtedly changed its frictional value so it may perform differently than expected. Where packaging professionals are concerned, this friction may create problems on the production line where materials/products are misfeeding, causing unnecessary delays and even damage. Coefficient of friction tests enable manufacturers to measure how slippery or adhesive their materials are. They can then determine the best running speeds for processing machinery, ensuring optimum production is maintained, while minimising the risk of damage to materials and equipment.

The coefficient of friction testing system includes a horizontal test table, a sled type weight and relevant attachments with which to perform each test. The COF tester can be employed to measure both the peak force required to initiate movement of the sample (known as static friction) and the average force required to maintain movement (known as kinetic or dynamic friction).

An added advantage of this system is its ability to perform tensile tests on packaging materials to measure stretch resistance and durability.

Phone: 08 8352 5511
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