the sa cranes are available for applications like buoy handling and/or pipe handling. the crane prime mover is either electric-hydraulic or diesel-hydraulic. ex proof systems are available. the hydraulic system is of a cl......the sa cranes are available for applications like buoy handling and/or pipe handling. the crane prime mover is either electric-hydraulic or diesel-hydraulic. ex proof systems are available. the hydraulic system is of a closed type technology with individual circuits for each crane function.