„One piece doesn’t make statistics”. Rawlplug’s fixing strength tests

Strength is a key word at Rawlplug, whether it concerns fixings, hand tools, power tools, or the respective dedicated accessories. Our experts in the areas of product management and laboratory tests will tell you all about how we check it.

Pull-out tests on strict terms

Most of the strength tests we perform at Rawlplug’s laboratories involve checking compliance of the strength parameters achieved by our products with the values declared in the relevant technical documentation, such as the National Technical Assessment (KOT) or the European Technical Assessment (ETA). We are obligated to perform such tests under the Factory Production Control (FPC) system we implemented, which is supervised and reviewed in annual audits by a Technical Assessment Body. The most common procedure in this case is the pull-out test, determining the durability of the fixing piece and the fixing connection strength.

How do we perform the tests? We install the fixing piece being tested in accordance with the installation instructions provided in the technical documentation and the anchoring parameters such as: drill bit diameter, drilling and embedment depth, and substrate type. Subsequently, we perform a pull-out test on this set-up. This is carried out using universal testing machines that pull the piece that has been fixed upwards with a predetermined speed until the maximum value for the specific fixing piece is reached. Machines of this type make it possible to test any type of our fixings, embedded in any material.

Fixings are tested in strictly defined conditions.

1. Firstly, we always test more than one fixing piece at a time.