QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.
| Payment Terms | T/T |
| Supply Ability | 10pcs/per week |
| Delivery Time | 2~3 weeks |
| Packaging Details | Pallet or Plywooden Box |
| Name | Subsea Buoyancy Modules |
| Material | Syntactic foam |
| Service | Customizable Configurations |
| Density range | 0.3-0.7g/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%) |
| Brand Name | DOOWIN MARINE |
| Model Number | Buoyancy module materials |
| Certification | ABS,CCS,BV,LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 10pcs/per week |
| Delivery Time | 2~3 weeks | Packaging Details | Pallet or Plywooden Box |
| Name | Subsea Buoyancy Modules | Material | Syntactic foam |
| Service | Customizable Configurations | Density range | 0.3-0.7g/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%) |
| Brand Name | DOOWIN MARINE | Model Number | Buoyancy module materials |
| Certification | ABS,CCS,BV,LR | Place of Origin | China |
| High Light | Lightweight Subsea Buoyancy Modules ，Subsea Buoyancy Modules High Strength ，Corrosion Resistant Syntactic Foam Blocks | ||
Inflatable Marine Parts Accessories Buoys Subsea Syntactic Foam Block Buoyancy Module
Subsea Buoyancy Products Made of Syntactic Foam
Most of our products are custom made, so there is no standard specification sheet.
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.
Subsea Buoyancy Syntactic Foam: Crafted for Ocean's Greatest Challenges
Subsea buoyancy foams are high-performance deep-sea composite syntactic materials specifically engineered for extreme deep-sea environments. They feature lightweight design, high strength, corrosion resistance, and ultra-high pressure resistance (capable of withstanding pressures at 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).
Subsea buoyancy foams are widely used in deep-sea equipment. They serve critical roles in manned submersibles, buoyancy modules for ROVs/AUVs, subsea oil and gas pipelines, and deep-sea mining systems. By minimizing structural weight and enhancing durability, these syntactic foams significantly extend operational lifespans and improve energy efficiency. As deep-sea resource exploration advances, deep-sea composites are indispensable for enabling cutting-edge technologies and driving sustainable development in ocean engineering.
Subsea Buoyancy Foam Specification
Density and strength can be designed according to the user’s water depth requirements to meet actual usage requirements.
| Type | Model | Density (g/cm3) | Compression Strength (MPA) | Water Absorption (24 hours) | 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 Performannce | SBM-43 | 0.43 ± 0.02 | ≥ 24 | ≤1% | 1 000 |
| Standard Performance | SBM-45 | 0.45 ± 0.02 | ≥ 28 | ≤1% | 1 500 |
| Standard Performannce | SBM-51 | 0.51 ± 0.02 | ≥ 45 | ≤1% | 3 000 |
| Standard Performance | SBM-54 | 0.54 ± 0.02 | ≥ 60 | ≤1% | 4 000 |
| Standard Performannce | SBM-58 | 0.58 ± 0.02 | ≥ 75 | ≤1% | 5 000 |
| Standard Performance | SBM-63 | 0.63 ± 0.02 | ≥ 90 | ≤1% | 6 000 |
| Standard Performannce | 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 |
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
3000000-5000000
Employee Number:
60~80
Ecer Certification：
Verified Supplier
Doowin Marine is a professional manufacturer of ship launching airbags, pneumatic rubber fenders, foam-filled fenders, inflatable pipe plugs, and offshore foam buoys. Doowin Marine is the leading manufacturer of ISO 14409:2011 or CB/T 3795 rubber airbags/marine inflatable airbags. Marine rubber airb... Doowin Marine is a professional manufacturer of ship launching airbags, pneumatic rubber fenders, foam-filled fenders, inflatable pipe plugs, and offshore foam buoys. Doowin Marine is the leading manufacturer of ISO 14409:2011 or CB/T 3795 rubber airbags/marine inflatable airbags. Marine rubber airb...
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