The ideal ROV/AUV buoyancy package.
The ideal ROV/AUV buoyancy package.
Company highlights
- Design, engineering and manufacturing on site
- Short delivery lead times
Product highlights
- Lightweight low and very low densities offer maximum buoyancy
- Depth ratings of up to 10 000 meters
- Bespoke design and build
- Range of finishes available
- Reliable deepwater performance


Company highlights
- Design, engineering and manufacturing on site
- Short delivery lead times
Product highlights
- Lightweight low and very low densities offer maximum buoyancy
- Depth ratings of up to 10 000 meters
- Bespoke design and build
- Range of finishes available
- Reliable deepwater performance
BMTI® combines materials technology and design experience to manufacture highly sophisticated ROV (Remotely Operated Vehicle) buoyancy modules and AUV (Autonomous Underwater Vehicle) buoyancy modules.
BMTI® offers the lowest pure syntactic foam densities on the market for depths from 1 000 to 10 000 m, for maximum vehicle buoyancy.
BMTI® also has extensive experience in the positioning and incorporation of metal inserts, and in protective skins and coatings.
BMTI® can provide both standard blocks (large size means limited bonding) or finished buoyancy modules.
ROV / AUV manufacturing process
BMTI® offers a state-of-the-art ROV buoyancy manufacturing process to ensure the best possible quality.
We select the best foam grade for you on the basis of your specifications (depth rating and uplift are generally required). We are different from other buoyancy providers because we have the largest range of off-the-shelf blocks, densities and grades, so we can quickly take care of any application.
Buoyancy assemblies are then machined to the exact shape, before being finished with our own-formulation protective PUR and painting, including the positioning of inserts for which we offer premium strengths.
We carry out quality controls and testing to a high standard throughout the manufacturing process, so as to guarantee the best product performance.

ROV / AUV references
BMTI® supplies buoyancy to the major ROV / AUV manufacturers, so we can provide the best technical solution combination for every requirement.
New vehicle buoyancy, upgrade, tooling skid package, additional buoyancy at various depths – we will suggest the most reliable product.

EDGELAB AUV 1000 m

CEiiA "MEDUSA DEEP SEA" 4000 m depth

ICTINEU 3 1200m deep sea manned submersible

OCEANEERING NEXXUS 3 000m depth

SAIPEM INNOVATOR 2.0 3 000m depth

FUGRO FCV 3000 3 000m depth

IXBLUE SAMS DT 6000 6 000m depth

DWTECH TAIWAN 3 000m depth

ROV Skid & Tooling buoyancy (courtesy of Rovquip)
ROV/AUV buoyancy repair
BMTI® offers a repair and refurbishment service for damaged or worn subsea buoyancy modules. We are experienced in the repair of complete module breakages or the replacement of missing sections, ensuring you get maximum usage from your subsea buoyancy assets by extending their lifespan.


Need a bespoke buoyancy product?
Send us your drawings and we will provide a quote.