The rotator balls in the VK/VS range have painted aluminum bodies and steel bearing housings. They are designed to be waterproof and allow horizontal or vertical fixing. Dry lubricated air is necessary for their usage. Thanks to the delivery of air or pressure, there is amplitude and frequency variation.
Rotation is enabled, caused by a ball rolling on a hard, polished steel track. Upon request, an ATEX version with a stainless anodized aluminum body is available.