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High Density ROV Buoyancy , Umbilical And Riser Buoyancy Modules OEM OEM

Name: High Density ROV Buoyancy Umbilical And Riser Buoyancy Modules OEM OEM
Brand: DOOWIN MARINE
Price: 100 USD

High Density ROV Buoyancy , Umbilical And Riser Buoyancy Modules OEM OEM

Categories	Subsea Buoyancy Modules
Brand Name:	DOOWIN MARINE
Model Number:	Deep water subsea buoyancy modules
Certification:	ABS,CCS,BV,LR
Place of Origin:	China
MOQ:	1pc
Price:	100~ 3590 $USD
Payment Terms:	T/T
Supply Ability:	10pcs/per week
Delivery Time:	2~3 weeks
Packaging Details:	Pallet or Plywooden Box
Product Name:	ROV Buoyancy
Material:	Closed cell foam
Service:	OEM/OEM
Density range:	0.08 ~ 0.2 g//cm3, 0.35~0.7 g/cm3
Long Service Life‌:	20+ year lifespan with minimal annual buoyancy loss (<0.1%)
Water absorption rate:	Not more than 1% (or 5%)
Submersible Depth:	50~ 11,000 meters underwater
Shape design:	Customized
Skin:	Elastomer PU skin
Color:	Orange, Yellow, Red and others
Application:	Subsea Buoys and Buoyancy Modules
Compression Strength:	2~5.19 Mpa, 8~90 Mpa
Water Absorption:	< 2%

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QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.

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High Density ROV Buoyancy , Umbilical And Riser Buoyancy Modules OEM OEM

Custom ROV buoyancy, umbilical and riser buoyancy, mid water arches deep water subsea buoyancy modules

High-density, low water absorption floats designed for demanding subsea environments. Most products are custom manufactured to meet specific project requirements.

The subsea solid buoyancy material is a solid compound obtained by filling an organic polymer material with an inorganic light-weight filler material through a physical and chemical reaction. The deep-sea buoyancy material is a low-density, high-strength porous structure material. It is a counterweight material for underwater operation equipment.

The subsea buoyancy module is a polymer-based solid material with low density, high strength, and low water absorption. It has the characteristics of low density (0.35～0.7g/cm3), low water absorption ( ≤2%), high mechanical strength (compressive strength 1～100MPa), corrosion resistance, and secondary mechanical processing.

The solid buoyancy modules can meet the requirements of different underwater applications. An underwater system made of high-performance solid buoyancy materials. Not only can it dive to greater depths, increase the payload, and reduce energy consumption. And it can maintain a stable working condition underwater. Deep-sea solid buoyancy materials are an indispensable part of deep diving technology in the 21st century.

Subsea Buoyancy Syntactic Foam

Subsea solid buoyancy material (syntactic foam) is a lightweight composite formed by embedding hollow microspheres in polymer matrices.
Low density (0.35-0.7g/cm³)
High strength (1-100MPa)
Minimal water absorption (<2%)
Excellent corrosion resistance

Engineered for Extreme Deep-Sea Environments

Deep-sea syntactic foam applications diagram

Our high-performance syntactic foams are specifically designed for deep-sea applications, offering:

Lightweight construction
Exceptional strength-to-weight ratio
Superior corrosion resistance
Ultra-high pressure resistance (withstands depths exceeding 10,000 meters)

These subsea buoyancy composites are typically fabricated by lightweight fillers like hollow glass microspheres to reduce density, often combining reinforcing fibers (e.g., carbon fiber, glass fiber) with polymer matrices (e.g., polyurethane, epoxy resin).

Applications

Our buoyancy modules are widely used in:

Manned submersibles
ROV/AUV buoyancy systems
Subsea oil and gas pipelines
Deep-sea mining equipment

By reducing structural weight while enhancing durability, our syntactic foams extend equipment lifespans and improve energy efficiency in marine operations.

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.
Subsea Buoyancy Foam Specifications

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

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

Precision Manufacturing Process

Syntactic Foam CNC production process diagram

Product Gallery

Custom ROV buoyancy module product display

Contact our specialists to discuss your subsea buoyancy solution for every application.
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