• +44 (0) 1403 799979
  • +1 703 433 9247

We use cookies on our website to ensure that we give you the best user experience.

By continuing to browse our site, you are agreeing to the use of our COOKIES POLICY. Learn more

I understand

Press-Stud Popper Pull-Off Test


PressStud 191

The customer was a supplier to major clothing retailer Marks & Spencer, who stipulate that all fasteners and attachments must be tested to failure.

The strength of the press-stud joint was critical to ensure that it met design tolerance and safety levels, particularly in baby clothing.

A motorized unit with a test speed was defined as 200 mm/min as the system needed to be simple to use in a production environment and provide consistent results.


The female part of the press-stud or 'popper' was placed under the retaining ring of the lower half of the Pull-Off fixture. The retaining ring was then locked in place by turning the lever of a cam mechanism.

The upper half of the fixture had an adjustable collet to fit over the male part of the press-stud. The collet was then tightened over the male part of the press-stud. The collet was then tightened to secure it in place. For ease of loading the male-press stud and to ensure a straight pull, the upper half of the fixture was connected to the force gauge via a flexible chain link.

The peak tension load to separate the press stud (or break the material joint) was captured on the force gauge display at the fast data-acquisition speed of 1200Hz.


  • 1000 N UltraTest Motorized Test Stand
  • 500 N AFG
  • Press-Stud Pull-Off Fixture

Supplied to

S.R. Gent, Dewhirst Childrenswear, Coats Viyella