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QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.
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Lightweight Subsea Cable Floats Low Water Absorption For Marine Applications

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Lightweight Subsea Cable Floats Low Water Absorption For Marine Applications

Brand Name : DOOWIN MARINE

Model Number : Subsea buoyancy modules

Certification : The third part certificate is avaliable upon request

Place of Origin : China

MOQ : 1pc

Price : USD$100~3500

Payment Terms : T/T

Supply Ability : 10pcs/per week

Delivery Time : 2~3 weeks

Packaging Details : Pallet or Plywooden Box

Product name : Subsea Buoyancy Modules

Brand : DOOWIN

Size : Customized

Standard colors : Orange, Yellow, or customized

Warranty : 2 years since from the time of B/L

Shape : Customized

Advantages : Low Water Absorption,High Pressure /Crush/Corrosion Resistance

Lifespan : 20+ years

Density : According to the user's water depth

Material : Syntactic foam,or chemical Foam

Inner Foam : Closed-cell foam

Skin : Elastic polyurethane coating

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Lightweight Cable Floats Marine Buoy Subsea Buoyancy Modules For Underwater Pipeline Installation
Product Attributes
Attribute Value
Product name Lightweight Cable Floats Marine Buoy Subsea Buoyancy Modules For Underwater Pipeline Installation
Advantages Low density and high pressure resistance
Design Using Life 20+ year lifespan with minimal annual buoyancy loss (<0.1%).
Size As per customer request
Inner material Syntactic foam,Chemical Foam
Skin Elester polyurethane Coating
Color Orange, Yellow, or customized
Warranty 2 years
Float shape Can be customized
Lightweight Subsea Cable Floats Low Water Absorption For Marine Applications

Professional Offshore Solid Buoyancy Modules Solution from the surface to subsea 7000msw.

We provide the highest quality flotation for offshore, research, commercial. Made with syntactic foam, these floats are the most reliable and cost-effective choice for ROV, AUV, and tow body flotation. Whether you are outfitting a new vehicle or tooling package, or require customized add-on buoyancy, you will get a superior product and quick turnaround.

We provide a comprehensive range of resilient foam buoys products with advance solid buoyancy material production and polymer engineering.

Our offshore buoyancy buoys generally consist of a closed-cell foam core encapsulated with tough, resistant polyurethane outer skin, combined with high-quality steelwork. We can make subsurface mooring buoys, cable floats, pipeline floaters, ROV buoyancy modules, special shape buoys, and other syntactic foam products. The out skin can be made by polyethylene shell and polyurethane elastomer.

Subsea Buoyancy Solution
The subsea buoyancy material is mainly used underwater. Based on its characteristics of low density and high pressure resistance, it mainly provides the required buoyancy for underwater operation equipment. Spray coating or protective layer treatment can be applied to the surface as required. Often manufactured and processed into floats, buoys and other counterweight products. It can also be directly machined into product parts.

It can not only meet the mechanical requirements of the product structure, but also greatly reduce the product weight and other functions. The application of this material realizes the functions that are difficult for metal structural parts to realize. At present, it has been used in underwater deep submersibles, underwater robots, etc., and can be used safely at depths of several thousand meters underwater.



Lightweight Subsea Cable Floats Low Water Absorption For Marine Applications Lightweight Subsea Cable Floats Low Water Absorption For Marine Applications

Syntactic Foam CNC Production


Lightweight Subsea Cable Floats Low Water Absorption For Marine ApplicationsLightweight Subsea Cable Floats Low Water Absorption For Marine Applications



Subsea Buoyancy Syntactic Foam
Subsea solid buoyancy material (syntactic foam) is a lightweight composite formed by embedding hollow microspheres in polymer matrices. These low-density (0.35-0.7g/cm³), high-strength (1-100MPa) materials feature minimal water absorption (<2%) and corrosion resistance, serving as essential counterweights for underwater equipment. Their applications enable deeper dives, increased payload capacity, and stable operation in deep-sea environments, making them crucial for 21st-century subsea technology.
Chemical Foaming Solid Buoyancy Material
The chemical foaming method buoyancy material is a kind of polyurethane-epoxy resin rigid foam composite material made by the chemical foaming method.
Model Density (g/cm³) Compression Strength (MPA) Water Absorption (24H) Submersible Depth (m)
CSBM-08 0.08 / ≤2% 50
CSBM-15 0.15 2.6 ≤2% 100
CSBM-20 0.20 5.19 ≤2% 200
Syntactic Foam Specifications
Syntactic foams are composite materials synthesized by filling a metal, polymer, or ceramic matrix with hollow spheres called micro balloons or cenospheres or non-hollow spheres.
Model Density (g/cm³) Compression Strength (MPA) Water Absorption (24H) Submersible Depth (m)
SBM-35 0.35±0.02 ≥8 ≤2% 200
SBM-37H 0.37±0.02 ≥12 ≤1% 500
SBM-38 0.38±0.02 ≥10 ≤1% 300
SBM-40 0.40±0.02 ≥12 ≤1% 500
SBM-40H 0.40±0.02 ≥18 ≤1% 1000
SBM-45 0.45±0.02 ≥20 ≤1% 1000
SBM-48 0.48±0.02 ≥25 ≤1% 2000
SBM-51 0.51±0.02 ≥35 ≤1% 3000
SBM-54 0.54±0.02 ≥45 ≤1% 4500
SBM-57H 0.57±0.02 ≥55 ≤1% 6000
SBM-63 0.63±0.02 ≥55 ≤1% 6000
SBM-70 <0.7 ≥90 ≤1% 11000
Subsea Buoyancy Modules
Lightweight Subsea Cable Floats Low Water Absorption For Marine Applications Lightweight Subsea Cable Floats Low Water Absorption For Marine Applications

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