Malaccamax is a naval architecture term for the largest tonnage of ship capable of fitting through the  Strait of Malacca. Bulk carriers and supertankers have been built to this tonnage, and the term is chosen for very large crude carriers (VLCC).
The term "Malaccamax" refers to the largest ships that can pass through the Strait of Malacca. These vessels are typically bulk carriers and supertankers, with VLCCs also fitting this description.