Cranes 4, 5 & 6 are Kocks “H” frame, high-profile luffing-boom type cranes were delivered in the late 1980’s. Cranes 7, 8, 9 & 10 were the first ZPMC cranes operational in the USA, and, the first major order for ZPMC and to the western hemisphere. All seven (7) cranes have been converted from diesel generated power to electrical that work on 13.2 KV from underground electrical pits along the wharves. Cranes 4-6 operated ABB DCS600 retrofitted drives with AC410 Advant Controller with CMS 7, while Crane 7-10 operate ABB Tyrak Midi II with AC410 Advant Controller with CMS. Below are these cranes’ specifics;
| Capacity: |
| Under Spreader, Single Lift |
50LT |
|
| Under Spreader, Twin Lift |
50LT |
|
| Under Cargo Beam |
70LT |
|
| Size: |
| Outreach from waterside rail |
46.1 m |
151 ft |
| Backreach from landside rail, boom extended |
25.9 m |
85 ft |
| Hoisting height from top of WS rail to underside of spreader |
30.4 m |
100 ft |
| Total hoisting height |
45.7 m |
150 ft |
| Vertical clearance under portal beam |
15.2 m |
50 ft |
| Clear width between legs |
18.3 m |
60 ft |
| Out to out of gantry bumpers (bumper-to-bumper) can work every 2 bays. |
32.8 m |
107.5 ft |
| Setback from face of bulkhead |
4.6 m |
15 ft |
| Setback from outer face of fender |
7.0 m |
23 ft |
| Operating Speeds: |
| Hoisting with empty spreader |
131.7 m/min |
432 ft/min |
| Lowering with empty spreader |
131.7 m/min |
432 ft/min |
| Hoisting with 50LT spreader |
42.6 m/min |
140 ft/min |
| Lowering with 50LT spreader |
51.2 m/min |
168 ft/min |
| Hoisting with 70LT under cargo beam |
30.4 m/min |
100 ft/min |
| Lowering with 70LT under cargo beam |
30.4 m/min |
100 ft/min |
| Trolley travel |
153.0 m/min |
500 ft/min |
| Gantry travel |
46.0 m/min |
150 ft/min |
