Products such as brush motors from the series GR80 , which have been on the market for a long time, are sometimes tailored to the requirements of individual projects. This is due to the changed normative criteria, but also to meet the increased needs of customers in the area of general applications.
The current galvanic surface coating GR80 did not meet the requirements of rail and food industry in the field of corrosion protection and hygiene. Therefore, for a long time, cathodic casings (CDC) have been used for these applications. The drive in this housing has successfully passed the salt fog test in accordance with DIN EN ISO 9227 with a result of over 192 hours.
Due to the black color of the CDC housing, thermal emission improved. It contributes to the increase of the engine's continuous torque. In some versions the nominal torque increases by up to 10%.
The manufacturer decided to offer this technology to all customers, therefore the CDC seal was transferred to a standard product. In order to increase the supply, an alternative brush holder material has been used.
Thanks to these activities, GR80 is well prepared for the future. From now on buying a standard engine, customers get a product that's even more suited to the increased requirements.