ANDROS Wolverine V2 used by MSHA in the Sago Mine response.
The robot is made in the following variants:
F6-A is the basic variant. Its dimensions are 52" x 29" x 56.5" (L X W X H), it weighs 485lbs, has 4 cameras, and a manipulator arm capable of lifting 25lbs at full extension.
MarkV-A1 has a similar design to the F6-A model, but is appreciably larger with a weight of 790lbs.
Mini ANDROS-II is a smaller variation of the design. Its dimensions are 53" x 24.5" x 27" (L X W X H) and it has a weight of 225lbs.
Wolverine is a wheeled and optionally tracked design and is the largest in the ANDROS family at 810lbs.
Wolverine V2 is a mine-permissible variant of the Wolverine for use by the Mine Safety and Health Administration. With the added safety equipment, the V2 weighs 1200lbs. The V2 was a custom design and is not offered for sale with the other models.
HD-1 is wheeled and optionally tracked like the Wolverine, but is the smallest (and newest) ANDROS variant, weighing 200lbs.