Mobile crane, particularly port mobile crane, for normal and heavy loads

摘要

Crane has additional heavy load lifting winch (10), mounted below the jib (1.5), for heavy load operation, from which heavy load lifting cable passes via direction changing roller (11) mounted on jib to roller set of heavy load hook type bottom block (13) removably mounted on jib head (1.3). Normal load lifting mechanism (1.1) is used as rocker mechanism for jib in heavy load mode.