Space programs and space technology that arise today are highly valued and important in the development of the Earth, showing the complexity and difficulty of creating or operating goals. If there is a system failure or problem beyond expectation, the damage could cause the space program to be suspended, or even the astronauts have fatal injuries. Therefore, the system must be tested as much as possible. Research has demonstrated the development of a mobile robot for testing in microgravity and low-gravity environment on earth. Compared to conventional systems based on the amount of air loaded on a mobile robot represents a duration of testing per cycle. We developed an inflation system by building another mobile robot to inflate it so that the test system can be tested forever. Our research discusses investigating a preliminary inflation system by constructing air nozzles and inflators and testing docking on XY-table. We were interested in the effect of force effects in all directions on a mobile robot in microgravity and low-gravity being tested to develop a docking algorithm with the most negligible impact or none.