Bestaro Machinery Co.,Ltd
Bestaro Cranes Serving the development of global industry
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Large Scale High Speed Harbour Portal Crane Main Ship Loading Equipment
Harbour Portal Crane introduction:
Portal cranes have hoisting, slewing, luffing and running mechanisms. The first three mechanisms are installed on the rotating part and participate in the operation in each cycle. The rotating part is also equipped with a tiltable single boom or combined boom and a driver's cab. The operating mechanism is installed at the lower part of the gantry to adjust the working position of the crane. The gantry crane with bucket is also equipped with additional equipment such as telescopic funnel and belt conveyor to improve the productivity of the gantry crane when loading and unloading bulk materials with the grab bucket. In addition to electrical protection devices, safety devices such as lifting weight or lifting moment limiters and crane rail clamps are also installed.
Harbour Portal Crane Specification:
| Capacity(under spreader) | t | 30.5 | 35 | 40.5 | 50 | 65LT |
| Duty |
| A7 | A7 | A8 | A8 | A8 |
| Span | m | 10.5 | 10.5 | 22 | 22 | 22 |
| Base | m | 16 | 16.5 | 16.5 | 18 | 18 |
| lifting height(above rail) | m | 16 | 22 | 28 | 38 | 48 |
| lifting height(below rail) | m | 26 | 16 | 14 | 14 | 14 |
| hoisting speed (full load) | m/min | 50 | 46 | 50 | 70 | 70 |
| hoisting speed (only spreader) | m/min | 100 | 90 | 100 | 150 | 150 |
| trolley traveling speed | m/min | 150 | 120 | 160 | 220 | 320 |
| gantry traveling speed | m/min | 45 | ||||
| Boom hoisting time (one way) | min | 6 | 6 | 5 | 5 | 5 |
| Total Power | kW | ~650 | ~650 | ~920 | ~1400 | ~1800 |
| max wheel load (duty) | kN | 320 | 480 | 560 | 650 | 850 |
| crane rail |
| QU80 | QU80 | QU100 | QU120 | QU120 |
| Power supply |
| 3-phase AC (50 or 60Hz) | ||||
Harbour Portal Crane Application:
Loading and unloading at port, material handling at dockyard, ship building and repairing yard, metallurgy industry. They mainly include lifting mechanism, luffing mechanism, slewing mechanism, travelling mechanism, spreader device ( grab, container, and hook), electrical equipment and other aiding devices for safety. The applied rigid rack and screw lever luffing mechanism make sure a constant working state.
Harbour Portal Crane Photo: