The aim of KRONA KOBLENZ is to grant the absolute quality in technology and in materials, in order to obtain a perfect functionality and reliability of its articles. That’s the reason why most of them are certified and protected by International patents.


Thanks to this new test rig, all of the KRONA KOBLENZ hinges are tested for a durability test according to the regulations EAD 020001-01-0405 (March 2017) based on recommended load weights. This test is an obligatory step to get the CE product certification.


In 2012 Koblenz hinges mod. K7080 and K7120 obtain the CE certification which was also obtained by K5080, K6200 and K2400 in 2018.

Krona Koblenz is the only Italian manufacturer which achieved such results: this is indeed a very important result, that can be considered as a guarantee of the product’s quality and reliability, and that has been reached indeed after many very strict tests.

With the aim to obtain the CE certification our hinge models K7080 and K7120 of the KUBI 7 and K5080, K6200 and K2400 of KUBICA range (invisible hinge adjustable on 7 fulcrums) had undergone specific mechanical tests that had been passed brilliantly which lead to the certification according the European Norm EAD 020001-01-0405. IFT Rosenheim is a well known European testing, surveillance and certification laboratory with international accreditation and had to carry out the tests. IFT is part of important bodies and grants implementation of the norms, of the technical premises as well as their control.

Tests included in the above mentioned norm refer basically to the mechanical influence on the hinges as follows:
1) Static load and Overload tests:
a) Static load and overload test: the hinges are installed on the test product and charged with the double weight as the weight of the capacity indicated (e.g. 160 kg for K 7080). The door is moved for a short time period for an operating time of 20 cycles at an opening angle of 93° for 2 minutes
b) Static overload test: the hinges are overloaded and charged with the triple weight (e.g 240Kg for K7080) the door is moved as described above.
2) Durability test: The test door with two hinges is charged with the maximal capacity foreseen and moved for 200.000 cycles.
3) Corrosion resistance test:
Made by means of salt spray test.

Among the many advantages of the KUBICA hinge series today for the models of K7080. K7120, K5080, K6200, K2400, K6300, K6700 and K8000 another important result was achieved: they passed the fire-proof tests. By passing the fire-proof test hinges adapt perfectly to the European Norm UNI EN 1634-1 or EN 1634.2, which regulates the fire-proof test for doors and closing systems in general and in particular for fire-proof accessories and closing devices. So hinges K7080. K7120, K5080, K6200, K2400, K6300, K6700 and K8000 become adequate for closing devices in schools or kindergartens, communities, condominium or every kind of public building where fire-proof doors are legally obliged. The tests were carried out and certified by the most qualified European labs, such as IFT Rosenheim, IBS Lienz, LAPI, APPLUS.



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