Ballast - Load Testing Solutions

Each water-filled weights are manufactured to BS EN ISO 9001:2008, and qualified by Lloyds Register QA. In addition, each unit comes with a 6:1 type test certification, achieved at the TUV National Engineering Laboratory.

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Buoyancy Solutions

MMO offers the Seaflex range of open and enclosed lifting bags from Unique Group that are ideal for a wide range of salvage operations.

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Uni-Life 100, the Non-Invasive Positive Pressure Ventilation System

The Uni-Life 100 has been specifically developed by MMO to aid African authorities in their efforts to
provide mass treatment to patients across the continent who are displaying COVID-19-related symptoms.

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Level 2 B-BBEE South African Company

MMO is committed to the mission & vision of Broad-Based Black Economic Empowerment (B-BBEE).
It maintains the highest level of B-BBEE standards by incorporating essential practices into business activities.

Diving & Industrial Gases

Innovation in Molecular Space – Substantial Experience in Marine Engineering & Hyperbaric Technology

Certified by DNV.GL: Gas Storage Quads/Bundle

Understanding the Crucial Needs of Gas Products in Future Sphere - Offering Extensive Gas Storage Solutions


Leading supplier of Diving and Industrial Gases, Marine Diving Equipment, Gas Storage Equipment,
Portable Gas Filling Plants and LNG-CNG Equipment to the oil and gas industry.

  • Diving & Industrial Gases

    Diving & Industrial Gases

    Diving and industrial gases are a lifeline for many modern-day industries. They are of course essential in terms of supporting diving-led operations offshore and offer new flexibility and viability when it comes to delivering construction projects, including pipeline installation. 

  • Gas Storage Equipment

    Gas Storage Equipment

    Gas Cylinder Quads are used for storing various gases which need to be fed in a regular flow within an industrial process. They are the right choice for storing gases safely – conventional cylinders often compromise efficiency and increase costs due to gas leakages.

  • CNG- LNG

    Portable Onsite Filling Unit

    The Portable Onsite Gas Filling Plant represents the best solution for uninterrupted gas supply in line with the requirements associated with various industrial applications.

  • Portable Onsite Filling Unit

    Nitrogen Purging Services

    Nitrogen gas is used for purging pipelines and tanks to offer a stable climatic environment for gas flow and hazard-free storage.

  • Nitrogen Purging Services

    CNG- LNG

    MMO is the sole distributor for Galileo Technologies for the South African market. Galileo is not just a product offering, but a new concept in the LNG Industry. It supports better and more efficient distribution of gases to other industrial sources.

  • Uni-Life 100

    The medical marine offshore system provides a highly cost-effective solution which can be mass produced as a light-weight, modular and rapidly distributed alternative to other ventilator systems available.


Our Company

Established in 2000 in Cape Town, South Africa, Unique Hydra (Pty) Limited is a leading manufacturer and supplier of marine diving equipment and services to the oil and gas industry. MMO has a shareholding by Unique Group, which is one of the world's leading integrated turnkey subsea and offshore solutions provider.

MMO has multiple diverse offerings of Diving and Industrial Gases, Marine Diving Equipment, Gas Storage Equipment, Portable Gas Filling Plants and LNG-CNG Equipment to meet varied client requirements.

MMO personnel, with the support of Unique Group, offer substantial experience in marine engineering, hyperbaric technology, military and defence, aerospace, nuclear and chemical engineering. This experience gives us a leading edge in obtaining contracts involving the design, production, supply and maintenance of our specialised equipment. All services offered are comprehensive and tailored to suit individual client needs.


We'd love to meet you and your team soon but for now, please meet ours: