Jack type | Leg type | Drive system | Fixation | Shock absorption |
Rack and pinion | Truss | Electric | Brake | Rubber pads |
Jacking cylinders | Cylindrical tube | Hydraulic | Cylinders | Jacking cylinders |
Winches | Square tube | Electric-Hydraulic | Pins | Nitrogen cylinders |
Pneumatic | Crossbar | Hydraulic cylinders | ||
Specific (other) | Specific suspension |
Moving frequency | Function example Jack-up | Water depth | ||
< 50 m | 50 - 100 m | >100m | ||
High | Wind turbine placing | Winches Rack and pinion | Rack and pinion | Rack and pinion |
Medium | Maintenance | Winches Jacking cylinders Rack and pinion | Jacking cylinders Rack and pinion | Rack and pinion |
Low | Drilling platform | Jacking cylinders | Jacking cylinder Rack and pinion | Rack and pinion |