Wiping a large whiteboard doesn’t have to be a hassle. Not when you can use a robot like the swiperWHITE to get it done. It sticks to the whiteboard with magnets and cleans it autonomously. The swiperWHITE comes 2 motors with 3kg.cm torque.
swiperWHITE can make 60 cleans per charge with a speed of 200mm/s. Expected to ship in July. You can find out more about it here.