Motion stabilisers
Flowline buckling mitigation
Flowline buckling mitigation buoyancy modules promote controlled flowline movement by adding buoyancy in discrete locations. This reduces compression forces, bending moments and shear forces, mitigating buckling while maintaining flowline integrity throughout thermal cycling and subsea operation.
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Ballast module
Ballast modules provide additional submerged weight to flexible pipes, umbilicals and cables, helping to protect subsea lines, maintain bottom stability and prevent over-tension.
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Uraduct® Ballast
Uraduct® Ballast increases submerged weight of cables and flowlines without significantly increasing diameter, improving seabed stability and dynamic response. It provides abrasion and impact resistance for demanding subsea applications and environments.
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AIS is a global leader in the engineering, manufacture and application of insulation and passive fire protection systems, as well as buoyancy and SURF (subsea, umbilicals, risers and flowlines) products.
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Motion stabilisers

Controlled stability for subsea pipelines and cables

Motion stabilisers protect subsea cables, umbilicals and flowlines by mitigating instability in both axial and lateral directions on the seabed, anchoring movement through helical fins that increase seabed resistance and improve on-bottom stability.

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Benefits

Enhanced stability and reduced seabed movement

Motion stabilisers use self-burying helical fins and abrasion-resistant Uraduct® material to increase seabed resistance and control pipeline movement. They mitigate axial and lateral instability, reduce reliance on external anchors, and provide reliable long-term stability in challenging offshore environments.

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Dual stability
Mitigates both axial and lateral instability in subsea pipelines, cables and flowlines, helping maintain intended seabed position and reducing uncontrolled movement caused by currents, thermal effects or seabed geometry.
Self-burying fins
Helical fins are designed to embed into seabed soils, increasing resistance by over three times and improving on-bottom stability tailored to specific seabed conditions and environments.
Digital monitoring
Can be integrated with Mimir Digital Intelligence to provide continuous motion monitoring and data capture through embedded multi-sensor technology, removing the need for standalone monitoring devices offshore.

Specifications

Applications

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The new AIS website is now live
With a fresh look and simple navigation, we are pleased to announce that the new AIS website is now live.
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October 1, 2026
AIS completes acquisition of Matrix Composites & Engineering
Marking the next phase of its growth strategy, AIS is delighted to announce that it has received all necessary approvals and completed the acquisition of Matrix Composites & Engineering, a leading Australian provider of advanced composite materials and subsea engineering solutions.
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July 23, 2026
LS Cable & System awards contract for Taiwan’s Fengmiao offshore wind project
NjordGuard cable protection systems will protect the inter-array cables for the project’s fixed-bottom wind turbines.
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