Quality and Innovation
Quality control is an integral part of our production processes
Depending on the customer’s wishes or specifications, a wide range of tests and checks are possible.
Both at our international headquarters and in the various production locations, laboratories have been set up where we carry out the following tests, among other things:

- Wear measurements
- Breaking load
- Pin holding power
- Crushing strength test rollers
- Material alloy spectro analyses
- Metallurgic investigation
- Hardness measurement of all components
- Roughness measurements
- 3D measuring and scanning
- Matching within ½ and 1/3 DIN length tolerance
Innovation
Research and development across the entire Donghua Chain Group yields circa 800 product innovations per year. We conduct research into the use of materials, composition, post-processing, finishing and, of course, the long-term consequences of these choices. In time, we will self-evidently process this as improvements or additions to our product range, but we will immediately put this into practice in our partnerships.
Certification
Donghua works according to the following standards:
- ISO 9001:2015
- ISO 14001:2015
- ISO 45001:2018
- IATF 16949:2016
- EC-Directives with CE-marking