To do this, the boil-off gases are reliquefied under high pressure and injected into the ship's engine. Since ships are always operating and only brought into dry dock for maintenance once in five years, the high-performance pumps used for this purpose must be extremely robust and temperature-resistant. One of the favorites for the supply of these high-performance pumps is Cryostar SAS, a specialist in cryogenic gases. As a partner of this French manufacturer, LEWA was entrusted with the development of a new drive unit that meets the strict requirements for this application: With a rod force of 125 kN, the G3M drive unit transforms the rotary movement into an oscillating movement, achieving a maximum power of 160 kW.