Active redundancy:

The MVR mill has a hydraulic system that allows to swing out the rollers in a controlled way, using the newly conceived roller suspension system, and to replace the one-part wear parts easily. The wear parts of the grinding plate are replaced with a lifting device and the maintenance drive.
The grinding rollers can be swung out separately, thus allowing the continuation of mill operation while doing maintenance work (active redundancy). The regeneration of wear parts can be done either inside or outside the mill.