HKC 55 available from June. There is a video here which shows briefly how it works (scroll down).
The tracks are here, rated for a 250mm cut, 420 and 670.
The description in the tracks indicates that there are two other models coming, both mains power HK 55 and HK 85 (85mm cut)
"....forHKC 55, HK 55, HK 85"
If you put those links into Google Chrome it will translate it (right click).