Detailed Answer
Shipbuilding gantry cranes (large tonnage) remotes: 12 keys + dual speed + proportional joystick (precision lifting), 200m+ communication (dock coverage), IP67 + salt spray. The LDER LD-12DK and XINGJIA high-end models fit. Shipbuilding gantry cranes can use repeaters to cover very large areas, with a dual-station (remote + cab) option.
| Config | 12 keys + proportional |
| Coverage | 200m+ repeater |
| Protection | IP67 + salt spray |
Note:Survey the coverage area first — dock work areas are large.