Fleet
Cranes Specifications
A side-by-side comparison of the four ship-to-shore gantry crane families that serve PortMiami.
Comparison
STS crane families at a glance
| Specification | Cranes 4, 5 and 6 | Cranes 7, 8, 9 and 10 | Cranes 11 and 12 | Cranes 13, 14, 15 and 16 |
|---|---|---|---|---|
| General | ||||
| In service year | 1988 | 1995 | 2005 | 2013 |
| Manufacturer | Kocks | ZPMC | ZPMC | ZPMC |
| Working container count across vessel | 13 | 13 | 22 | 23 |
| Capacity (long tons) | ||||
| Under single-lift spreader | 50 | 50 | 50 | 50 |
| Under twin-lift spreader | 50 | 50 | 65 | 65 |
| Heavy-lift / cargo beam | 70 | 70 | 75 | 100 |
| Reach & lift | ||||
| A · Max working outreach | 149 ft (45.4 m) | 149 ft (45.4 m) | 213.2 ft (65 m) | 223.1 ft (68 m) |
| B · Max working backreach | 85 ft (25.9 m) | 85 ft (25.9 m) | 85.3 ft (26 m) | 85.3 ft (26 m) |
| C · Water height from top of WS rail (MLW, avg.) | -12.28 ft (-3.74 m) | -12.28 ft (-3.74 m) | -12.28 ft (-3.74 m) | -12.28 ft (-3.74 m) |
| Berth water depth (MLW)* | -42+1 ft (-12.8 m) | -42+1 ft (-12.8 m) | -42+1 ft (-12.8 m) | -42+1 ft (-12.8 m) |
| D · Max hoisting height under spreader | 100 ft (30.5 m) | 100 ft (30.5 m) | 131.2 ft (40 m) | 141 ft (43 m) |
| E · Max lowering of spreader below dock | 55 ft (16.8 m) | 55 ft (16.8 m) | 50 ft (15.2 m) | 52.5 ft (16 m) |
| Dimensions | ||||
| F · Height under portal beam | 50 ft (15.2 m) | 50 ft (15.2 m) | 50 ft (15.2 m) | 50 ft (15.2 m) |
| G · Overall length, bumper to bumper | 107.5 ft (32.8 m) | 107.5 ft (32.8 m) | 88.5 ft (27 m) | 88.5 ft (27 m) |
| H · Width between legs | 60 ft (18.3 m) | 60 ft (18.3 m) | 60 ft (18.3 m) | 60 ft (18.3 m) |
| I · Rail gauge | 100 ft (30.5 m) | 100 ft (30.5 m) | 100 ft (30.5 m) | 100 ft (30.5 m) |
| Operating speeds | ||||
| Hoisting, loaded | 140 fpm | 140 fpm | 230 fpm (70 m/min) | 230 fpm (70 m/min) |
| Hoisting, empty spreader | 432 fpm | 432 fpm | 509 fpm (155 m/min) | 509 fpm (155 m/min) |
| Trolley travel | 500 fpm | 500 fpm | 787 fpm (240 m/min) | 787 fpm (240 m/min) |
| Gantry travel | 150 fpm | 150 fpm | 151 fpm (46 m/min) | 151 fpm (46 m/min) |
| Boom hoist (one way) | ≈ 6.5 min | ≈ 6.5 min | 5 min | 5 min |
* Berth depth as recorded in June 2014. PortMiami's dredging program to -50 ft (-15.25 m) began November 2013. Lettered items (A–I) follow the PortMiami Crane Specifications Comparison reference drawing.