Handymax and Supramax are naval architecture terms for a bulk carrier, in a series that is called Handysize class. Handysize class consists of Supramax (50,000 to 60,000 DWT), Handymax (40,000 to 50,000 DWT), and Handy ( Found on http://en.wikipedia.org/wiki/Handymax
1) Ship type 
Handymax and Supramax are naval architecture terms for a bulk carrier, in a series that is called Handysize class. Handysize class consists of Supramax (50,000 to 60,000 DWT), Handymax (40,000 to 50,000 DWT), and Handy (