Remember the Husky UGV? It is a versatile unmanned ground vehicle that can be upgraded with stereo cameras, LIDAR, GPS, IMUs, manipulators, and other add-ons. It weighs 50kg and has a max payload of 75kg. Husky can go as fast as 2.3mph.
As this video shows, you can combine Husky with dual UR5 robot arms to complete tasks. These are flexible robots with a reach radius of up to 850mm and payload capacity of 5kgs.