Dispensing pump assembly testing

Mecmesin's customer manufactures a range of dispensing pumps for the cosmetic and beauty-care industry. A requirement was identified to measure the actuation force of the pump assembly and the pull-off force of the pump handle. The system needed to be quick and simple for operators to use within a production environment.

Solution

The VersaTest motorised test stand was chosen as it gave the necessary repeatability and consistency independent of operator, which a manual stand could not. A universal fixture was designed to hold the pump assembly securely for both tensile and compressive tests.

The 5000Hz sampling rate of the 500 N Advanced Force Gauge ensured the most accurate reading for the pull of test. The dual peak hold feature of the AFG also allowed quick and simple recording of peak values in both directions. The ease of use meant that large batches could be tested very quickly.

System

  • VersaTest Stand
  • AFG 500 N
  • Universal Fixture

See also

Cosmetic packaging pull-off test

A bench-top testing system was required to repeatably test the pull-off force on a variety of cosmetic containers. The system needed to allow a relatively high volume of containers to be tested with the minimum level of training required for users. Mecmesin's solution avoided the risk of damaging the loadcell by excessive torque on tightening the collet grip, and the lipstick barrel was first inserted in the grip and then connected to the gauge by a flexible chain-link.

  • Isabel Thomas
  • Product Info
  • English
  • Created 18 Jun 2019
  • Modified 11 Jun 2019
  • Hits 884