Non-destructive testing of LNG/LPG tanks is a crucial expertise in any natural gas production system. Qatar, especially has a major reserve of natural gas and with the Government's plan to make Qatar the Gas Capital of the world, this production is bound to increase requiring more and more of such storage tanks for storing the liquefied gas at cryogenic temperatures. Since maintenance can not be taken as an optional procedure, the routine shutdowns are essential part of the plant operation. For routine maintenance of such tanks, they are shutdown for at least two weeks to warm them up slowly in order to bring the cryogenic temperatures to humanly-possible range. This, of course, means loss of production for two weeks which typically amounts up to 20 Million dollars per day!!! Since, the proposed robot will allow the inspection to take place at a very low temperature, without any need for human operators to go in, the loss of production can be saved by as many as 10 days which is quite significant amount (roughly 200 million dollars). To the best of our knowledge, no such system exists in the world at the moment and Qatar will be the first country to have such a robot built indigenously. Like any other robotic design, human safety is inherent in this system as well and it improves on the performance level of safety inspection for the tank as well.