Fewer lost days waiting on weather.
Norwegian Dynamics builds DNV-certified heave compensators and crane shock absorbers that extend the operating window and de-risk offshore lifts — across subsea, oil & gas, and offshore wind.
Product family
A complete toolkit for motion compensation and load control.
Six product solutions cover passive and active heave compensation, crane shock absorption and tensioning. Start with SWL, stroke, installation type and operation sequence; the simplest suitable product is usually the right starting point.
Adaptive passive heave compensation for demanding subsea lifts and changing buoyancy.
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Compact passive heave compensation for predictable splash-zone crossings and standard subsea lifts.
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High-capacity passive heave compensation for heavy subsea lifts above the standard RIGEL range.
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Topside motion compensation and subsea active heave compensation where active feedback is required.
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Lightweight crane shock absorber for peak-load protection with fast setup.
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Backup riser tensioning for drilling and workover compensation duties.
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Compare operating ranges
Engineering review depends on sea state, wave period, payload, water depth and operation sequence.
| Compare | | | | | | |
|---|---|---|---|---|---|---|
| Best fit | Complicated, multi-step subsea lifts | Simple splash-zone crossings and low-cost PHC | Heavy subsea lifts above the RIGEL range | Topside or subsea active motion compensation | Crane shock absorption and overload protection | Backup riser tensioning |
| SWL | 30-4,000 t | 55-1,000 t | Up to 10,000 t | 75-2,500 t | 75-4,000 t | 350 / 500 t |
| Stroke | 2.5-8.0 m | 1.0-6.0 m | 1.0-6.0 m | 2.5-6.0 m | 1.0-8.0 m | 3.0-12.0 m |
| 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 |
- Best fit
- Complicated, multi-step subsea lifts
- SWL
- 30-4,000 t
- Stroke
- 2.5-8.0 m
- Form factor
- Subsea
- Best fit
- Simple splash-zone crossings and low-cost PHC
- SWL
- 55-1,000 t
- Stroke
- 1.0-6.0 m
- Form factor
- Subsea
- Best fit
- Heavy subsea lifts above the RIGEL range
- SWL
- Up to 10,000 t
- Stroke
- 1.0-6.0 m
- Form factor
- Subsea
- Best fit
- Topside or subsea active motion compensation
- SWL
- 75-2,500 t
- Stroke
- 2.5-6.0 m
- Form factor
- Topside / subsea
- Best fit
- Crane shock absorption and overload protection
- SWL
- 75-4,000 t
- Stroke
- 1.0-8.0 m
- Form factor
- Topside
- Best fit
- Backup riser tensioning
- SWL
- 350 / 500 t
- Stroke
- 3.0-12.0 m
- Form factor
- Topside
Design basis
Wider weather windows, lower crane loads, faster turnaround.
Norwegian Dynamics equipment is selected from the lift data: sea state, wave period, payload, water depth, buoyancy and operation sequence. The result is a practical product choice to reduce dynamic loads and keep offshore work moving.
Designed around DNV ST-0378, DNV marine-operation practice and ISO 9001 manufacturing control.
Full lifecycle
From the first drawing to the last decommission.
We support the equipment we build for the entire life of the asset, in-house, with the same engineers who designed it.
Tord Martinsen · Founder & CEOFounder
You may already know our founder's work.
Norwegian Dynamics is a young company; the thinking behind ANTARES, RIGEL, CYGNUS, VEGA, POLARIS and SIRIUS is not. Our founder, Tord Martinsen, has spent his career in motion compensation — first at Cranemaster, then as the original founder of Safelink. He is the inventor of adaptive passive heave compensation, inline active heave compensation and the lightweight shock absorber, and is named on multiple patents in the field.
Why Norwegian Dynamics
Built and supported by engineers.
We design, manufacture, commission and support heave compensation and shock absorption equipment under one roof. That keeps the feedback loop short: the same team reviews the lift data, equipment, controls and offshore realities.
About the company ->Have a lift in mind? Let's find the right compensator.
Send a sketch, sea state or lift data. We'll come back with a practical product recommendation, operating-window view and next engineering step.