Operations
Transfer Lift
Managing the relative motion between two independently moving bodies — so a load transfers cleanly between vessel and platform without snap or re-contact.
A transfer lift moves a load between two bodies that rarely move together — vessel to platform, vessel to vessel, or deck to deck. Each rises and falls on its own response to the sea, so at the moment of pickup or set-down the relative heave between them can slacken the wire and then snap it taut, or drop the load back onto a deck moving the other way. Norwegian Dynamics builds the heave compensation that absorbs that relative motion at the hook, keeping line tension and contact loads inside the rigging limits — widening the workable sea state and de-risking the handover.
What we control
Relative heave between two bodies
When the crane vessel and the receiving deck move out of phase, the gap between them changes faster than the operator can. A RIGEL passive heave compensator absorbs that relative motion at the hook so the load follows one body's motion rather than being driven by both.
Snap loads at pickup and set-down
A slack wire going suddenly taut spikes tension well above the static weight. ANTARES adaptive passive compensation is preset to the load and expected motion, softening the moment the weight comes on or off so the peak stays within the wire and crane limits.
Clean release onto a moving deck
Setting down on a deck that is heaving needs the load matched to the deck's motion through touchdown. ANTARES is tuned so the final approach keeps touchdown speed within the window, avoiding bounce and re-contact as the load is released.
Active matching when passive is not enough
Where the two bodies' motions diverge too far for a passive or adaptive device, VEGA adds active stroke control with feedback to hold position against the relative heave through the transfer.
Choose the right compensator
Have a transfer lift to plan?
Send SWL, stroke, sea state, payload and operation sequence. We’ll come back with a recommended compensator, an operating-window view and the next engineering step.