SaMASZ Disc Mowers Breakaway System and Cutterbar Design 

Here's an overview of the SaMASZ PerfectCUT Cutterbar, and how the breakaway system works on the SaMASZ Disc mowers - as you can see, when the breakaway is activated, they move upwards as well as backwards, which could be a major advantage in some situations compared to just breaking away backwards. As shown, moving up helps get the cutter bar up and over the obstacle.
This video also clearly shows how the design of the gears inside the cutterbar - the small gear shown is the Quick Change Module as such, which is the one spinning the disc, meaning the larger gears can spin a lot slower which in turn means quieter running, ultimate efficiency and maximum longevity, as well as simplifying ongoing maintenance if one of the modules need to be replaced.