POLARIS wins this category.
When the dominant problem is impact energy or peak-load protection, the selector goes to POLARIS before the general heave compensation comparison.
Selection guide
Choose the right heave compensation product.
Start with SWL, stroke, installation type and operation sequence. The guide gives an initial product recommendation before engineering review.
Start with the lift data.
Early values are enough to narrow the initial product choice. Specialist duties, operating range, cost and reliability are handled before the general passive/active comparison.
Quick selector
Project inputs
Adjust the values to see how the initial recommendation changes.
500 t
12.5 t10,000 t
8 m
1 m12 m
Version
Lift sequence
Primary duty
Suggested product
85 weighted / 100
ANTARES Adaptive PHC
Adaptive passive heave compensation for demanding subsea lifts and changing buoyancy.
- Multiple-step lifting selects ANTARES unless motion compensation is the primary duty.
- SWL and stroke sit inside the published product range.
- Weighted against compactness, cost, reliability and performance for a initial product choice.
SWL input500 t
Stroke input8 m
Next stepSend lift data
Selection rules made explicit.
The page should explain why the tool sometimes ignores the weighted score and goes directly to a specialist product.
SIRIUS wins this category.
Backup riser tensioning and related tensioner duties should not be treated as normal lifting operations.
VEGA topside, ANTARES subsea.
VEGA is the best initial product choice for topside motion compensation. For subsea motion compensation, start with ANTARES and compare VEGA-S only when active subsea control is clearly required.
ANTARES by default.
Multiple lift stages, changing buoyancy and mixed splash-zone/subsea operations point to ANTARES unless topside active motion compensation is selected.
Use the simplest fit.
Predictable subsea lifts compare RIGEL, CYGNUS and ANTARES with compactness, cost, reliability and performance weighted reasonably.
Escalate to custom review.
If SWL or stroke falls outside the published product range, the selector should not force a catalogue answer.
Cost and reliability shape the first answer.
The selector should make active systems justify their complexity. VEGA is still the preferred topside motion-compensation answer, but subsea cases need an ANTARES check when the lift data fits.
Relative cost indicator
| Product | Relative cost |
|---|---|
| POLARIS shock absorber | Lowest |
| CYGNUS basic PHC | Low |
| RIGEL basic PHC | Low-mid |
| SIRIUS tensioner | Mid |
| ANTARES adaptive PHC | Medium-high |
| VEGA-T topside AHC | High |
| VEGA-S subsea AHC | Highest |
Project pricing depends on SWL, stroke, environment, instrumentation, qualification scope and interface requirements.
Reliability tendency
- Shock absorber
- Passive heave compensator
- Adaptive passive heave compensator
- Topside active heave compensator
- Subsea active heave compensator
This is why subsea active compensation should be recommended carefully: in some subsea motion-compensation cases, ANTARES may offer a comparable practical result with lower complexity.
Compare the product family.
Use the same logos, ranges and positioning as the landing page so visitors move cleanly between product overview and selector.
Adaptive passive heave compensation for demanding subsea lifts, changing buoyancy and some subsea motion-compensation cases.
SWL30-4,000 tStroke2.5-8.0 m
Compact passive heave compensation for predictable splash-zone crossings and standard subsea lifts.
SWL55-1,000 tStroke1.0-6.0 m
High-capacity passive heave compensation for heavy subsea lifts above the standard RIGEL range.
SWLUp to 10,000 tStroke1.0-6.0 m
Best initial product for topside motion compensation, with high performance and high relative cost.
SWL75-2,500 tStroke2.5-6.0 m
Lightweight crane shock absorber for peak-load protection with fast setup.
SWL75-4,000 tStroke1.0-8.0 m
Backup riser tensioning for drilling and workover compensation duties.
SWL350 / 500 tStroke3.0-12.0 m
Engineering comparison.
Keep the matrix, but make it supporting material rather than the first thing a visitor has to decode.
| Compare | | | | | | |
|---|---|---|---|---|---|---|
| Best fit | Complicated, multi-step subsea lifts | Simple splash-zone crossings and low-cost PHC up to 1,000 t | Heavy subsea lifts above the RIGEL range | Topside motion compensation and selected subsea active-control cases | Crane shock absorption and overload protection | Backup riser tensioning |
| Relative cost | Medium-high | Low-mid | Low | High to highest | Lowest | Mid |
| Control | Electronic damping and stiffness | Manual damping and stiffness | Manual damping and stiffness | Electronic active feedback | Manual damping | Manual damping |
| Form factor | Subsea | Subsea | Subsea | Topside / subsea | Topside | Topside |
Ready for engineering review?
Send SWL, stroke, sea state, payload, water depth and operation sequence. Norwegian Dynamics can review the case and return a practical product recommendation.
- SWL and payload
- Required stroke
- Hs and Tp
- Water depth
- Lift sequence
- Classification needs