Kungliga Tekniska högskolan and SMaRC (Swedish Maritime Robotic Centre) are using the Z10 OEM motors as the main propulsion on their larger AUV MRL LoLo. Since the vehicle is expected to visit depth down to 1000m, autonomously, it becomes of uppermost importance to verify that the equipment can handle these pressures to avoid catastrophic outcomes. Therefore, the LoLo team brought the Z10’s to SAAB Kockums facilities and pressure tested them.
The graph displays the pressure over time where you can notice that they cycled to approximately 100bar (~1000m) 3 times over a 2h period. The motors came out of the tanks unharmed and still working verifying that the motors will be up for the task of deep-sea explorations.
No extra casings, no extra weight, no extra losses.