 Like most modern bulk carriers, "Valemax" vessels are powered by a single two-stroke low-speed crosshead diesel engine directly coupled to a fixed-pitch propeller.The ships built by DSME and STX in South Korea are powered by 7-cylinder MAN B&W 7S80ME-C8 and 7S80ME-C engines, respectively, and the ships built by RSHI and Bohai Shipbuilding Heavy Industry have Wärtsilä 7RT-flex82T and 7RT-flex84T engines, respectively.Both MAN and Wärtsilä engines will have a maximum continuous rating of around when turning the propeller at 76–78 rpm, giving the ships a service speed of around while burning almost 100 tons of heavy fuel oil per day.