Stop collar
Grommet
Grommets are designed to connect with dressed or shimmed riser joints, providing safe dockside storage and stable stacking of drill riser buoyancy modules.
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Pin and box protection
Riser pin & box protection provides custom fit polyurethane covers for main tube and auxiliary line sealing surfaces, protecting stored risers offshore or onshore during handling, storage and transport operations.‍
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Riser clamp
Riser clamps provide secure attachment support for cables, pipelines and umbilicals running vertically along platform structures.
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Riser storage wedge
Riser storage wedges enable secure stacking of riser joints in dockside storage environments.
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Riser shim
The riser shim provides support to bare riser joints in critical areas, installed at intervals to assist handling and stacking while matching buoyancy external geometry for consistent riser configuration offshore operations.
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RiserGuard
RiserGuard provides complete protection for bare riser joints and external lines during handling, storage and drilling operations, reducing impact damage during running, retrieval and storage in offshore drilling environments.
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Stackable RiserGuard
The stackable RiserGuard provides complete protection for bare riser joints and external lines during handling, storage and drilling operations.
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Drill riser buoyancy systems
Drill riser buoyancy systems provide lightweight, high-performance buoyancy for subsea drill risers, reducing the effective weight of the riser string and supporting efficient drilling operations in deepwater environments.
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Investors
Find the latest financial results, ASX announcements, company reports and key information about AIS and our ongoing growth.
Investor overview
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  • Investors home
    • Explore AIS investor information, financial performance, company announcements and updates from Advanced Innergy Holdings Ltd (ASX:AIH).
  • Investor relations
    • Find shareholding details, contact information, and investor resources via our share registry, Boardroom Pty Limited.
  • Corporate governance
    • Discover how Advanced Innergy Holdings Ltd upholds transparency, accountability, and ASX governance standards through clear policies and frameworks.
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Company
Company
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.
Company overview
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  • About us
    • We are an ambitious business, commited to embracing innovation and solving our customers' challenges.
  • News & insights
    • Take a look at our latest news and view our case studies.
  • History
    • Find out how we have evolved into a team of around 1,000 employees since starting out in 2007.
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    • Discover more about the responsible business practices that shape our company.
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    • Our "Think Safe, Act Safe, Be Safe" programme promotes a culture where safety always comes first.
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Stop collar

Secure axial positioning for riser buoyancy

Stop collars securely hold buoyancy elements in position along riser joints, preventing axial movement during vertical installation and operation while supporting compatibility with drill riser buoyancy and protection systems offshore.

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Benefits

Secure retention for riser module positioning

Stop collars are designed to maintain axial positioning of buoyancy modules on riser joints. Their internal profile prevents sliding without increasing external diameter, ensuring compatibility with buoyancy and protection systems while maintaining secure, long-term offshore performance and stability.

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Axial retention
Prevents buoyancy elements from sliding along riser joints during vertical installation or operation, ensuring stable axial positioning under offshore conditions and dynamic loading environments.
Internal profile
Designed with an internal profile that fits within buoyancy geometry, avoiding any increase in external diameter and ensuring protection modules remain streamlined and secure.
Easy installation
Multi-segment construction allows straightforward installation around riser joints, improving handling efficiency and enabling secure placement across a wide range of riser designs and diameters.

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
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