Sheerlegs
 | Crane Barge
|
Crane Barge for Various Offshore Support Operations
A general construction crane barge designed for bridge and wharf construction, pipeline projects and salvage.
| Flag: AUSTRALIA | Location Built: Sydney |
| Class: 2D | Refit: 1997 |
Dimensions
| Length Overall: 24m | Beam: 13m |
| Draft: 1.8m |
Capacities
| Fuel: 18,000litres | Fresh water: 8,000litres |
Machinery (Below Deck)
| Generator: 1 x 25KVA Caterpillar | Compressor: 1 x 800cfm Sullair |
Mooring / Positioning System
| 4 x Jaden 10T hydraulic winches | 4 x 2.5T anchors |
Deck Equipment
Inner hook: 100T - at max lift water line to hook of 6.5m at 5m radius
Outer hook: 54T - at max lift water line to hook of 16m at 10m radius
Main winch: 2 x 10T Jaden hydraulic winches
Dredging
Clamshell bucket capacity: 8cu m
Crane & Lift Capacities (see Table 1 for lift and ratio capacities)
Type: American 1990 7750 Offshore 75T pedestal crane - serial number 9003AC3526 with 100ft of 46HR angle boom and 15,377 counterweight.
Powered by: 6V71N Detroit Diesel coupled to 3 stage torque converter, A/C in cab
Pedestal height: deck level to bull gear = 3.7m
Main hoist: 6 part to 75T on sheave block - wire rope diameter 25mm
Auxiliary hoist: single line to headache ball - wire rope diameter 25mm
Table 1: Offshore lift ratings in kg with 46HR angle chord lattice boom and "P-P" counter weight (15377kg), American 1990
Boom Length | Radius in Metres | Boom Angle Degrees | Lift Rating Offshore Floating | Metres from Boom Point to Boom Foot |
30.48 m | 6.1 7.6 9.1 10.6 12.2 15.2 18.3 21.3 24.4 27.4 30.5 | 80.9 78.0 75.0 72.0 69.0 62.7 56.0 48.8 40.6 30.8 16.5 | 25420 24770 24040 23300 22130 17715 14015 11550 9665 8245 7415 | 30.2 29.8 29.5 28.9 28.3 27.1 25.3 22.8 19.8 15.5 8.5 |
Sheerlegs Specifications Sheet
