Specifications
Brand Name :
DOOWIN MARINE
Model Number :
STY
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 :
Subsea Buoyancy Modules
Material :
Syntactic foam, Chemical foam
Service :
Support OEM/OEM service
Density range :
0.08-0.7g/cm3 ,provides exceptional lifting capacity
Long Service Life‌ :
20+ year lifespan with minimal annual buoyancy loss (<0.1%)
Water absorption rate :
Not more than 1% (or 5%)
Submersible Depth :
0 ~ 11,000 meters underwater
Shape design :
According to different customer needs
Skin :
Elastomer PU skin
Color :
Yellow,Orange, or customized
Specification :
As Client Requested
Application :
Buoyancy solutions for every application
Description
Customized High Pressure Resistance deep-sea mining Buoyancy Modules Underwater Gliders‌ CNC Precision Solution Buoy Systems
High-density, low water absorption floats designed for demanding subsea environments. Most products are custom manufactured to meet specific project requirements.
0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight
Subsea Buoyancy Syntactic Foam
Subsea solid buoyancy material (syntactic foam) is a lightweight composite formed by embedding hollow microspheres in polymer matrices. These materials feature:
  • Low density (0.35-0.7g/cm³)
  • High strength (1-100MPa)
  • Minimal water absorption (<2%)
  • Excellent corrosion resistance
Engineered for Extreme Deep-Sea Environments
0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight
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.
Subsea Buoyancy Foam Specifications
Density and strength can be customized to meet specific water depth requirements.
Type Model Density (g/cm³) Compression Strength (MPa) Water Absorption (24h) Submersible Depth (m)
Chemical Foam CSBM-08 0.08 / ≤5% Surface
Chemical Foam CSBM-020 0.20 0.5 ≤5% 50
Chemical Foam CSBM-025 0.25 1 ≤5% 100
Chemical Foam CSBM-030 0.30 2 ≤5% 200
Standard Performance SBM-36 0.36 ± 0.01 ≥ 16 ≤1% 500
Standard Performance SBM-38 0.38 ± 0.01 ≥ 21 ≤1% 800
Standard Performance SBM-43 0.43 ± 0.02 ≥ 24 ≤1% 1,000
Standard Performance SBM-45 0.45 ± 0.02 ≥ 28 ≤1% 1,500
Standard Performance SBM-51 0.51 ± 0.02 ≥ 45 ≤1% 3,000
Standard Performance SBM-54 0.54 ± 0.02 ≥ 60 ≤1% 4,000
Standard Performance SBM-58 0.58 ± 0.02 ≥ 75 ≤1% 5,000
Standard Performance SBM-63 0.63 ± 0.02 ≥ 90 ≤1% 6,000
Standard Performance SBM-70 0.70 ± 0.02 ≥ 145 ≤1% 11,000
High Performance SBM-43H 0.42 ± 0.02 ≥ 27 ≤1% 1,800
High Performance SBM-45H 0.45 ± 0.02 ≥ 35 ≤1% 2,000
High Performance SBM-48H 0.48 ± 0.02 ≥ 42 ≤1% 3,000
Precision Manufacturing Process
0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight


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0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight
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0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers Lightweight

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Brand Name :
DOOWIN MARINE
Model Number :
STY
Certification :
ABS,CCS,BV,LR
Place of Origin :
China
MOQ :
1pc
Price :
100~ 3590 $USD
Contact Supplier
0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight
0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight
0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight
0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight
0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight
0.08g/cm3-0.7g/cm3 Subsea Buoyancy Modules Manufacturers  Lightweight

QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.

Verified Supplier
1 Years
qingdao
Since 2011
Business Type :
Manufacturer
Total Annual :
3000000-5000000
Employee Number :
60~80
Certification Level :
Verified Supplier
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