Online demonstrations and training available from Mecmesin technical sales engineers

May 2020:
Online test equipment and training demos

 

As more people are working from home to reduce non-essential travel, our technical sales engineers can provide online equipment demos or training sessions via web-based video calls.

If possible, send in your own samples and our sales team will be able to present your own products being tested.

Get in touch to discuss your requirements and to arrange an online demo or training session.

Rotating Vacuum Peel System

Solution

  • Motorised tensile test stand and gauge
  • Custom vacuum fixture adjustable to maintain peel angle

Benefits

  • Simple and repeatable test procedure
  • Accurate and repeatable adhesive peel measurement from flexible container

Requirement

Testing was required for a range of flexible plastic trays of the same dimension but with differing forms, containing biscuits and confectionary. The adhesive bond on the clear foil sealing the trays needed to be tested for peeling strength.

The system needed a constant peel speed at a constant angle of 90 degrees. A reading of the peak force to break the adhesive bond, together with the average force to maintain the peel was required. With a number of plastic trays to be tested, the test speed needed to be as high as possible (500 mm/min).

Solution

The plastic trays were too flexible to be held by a mechanical grip, so a 'rotating vacuum fixture' was developed. This held the tray firmly in place during the test. A compressor providing 6 bar pressure was required with the vacuum being controlled by a lever-valve. To accept the different forms of plastic trays, a range of dedicated inserts were supplied with the vacuum fixture.

Both the vacuum and force gauge were mounted at 45 degrees to provide the constant angle of 90 degrees. In order to maintain the constant peel speed. The vacuum fixture was able to freely rotate on a bearing allowing the rectangular shaped plastic tray to self-centre during the test. DataPlot software enabled the customer to analyse peak and and average forces in a graphical format.

Test equipment

  • Motorised Test Stand
  • Advanced Force Gauge (AFG) 250N
  • 'Rotating Vacuum Fixture' and dedicated inserts
  • DataPlot Software
 

Speak to an expert

Got a question about a product? Request a call back from one of our Technical Sales Engineers now.