Neutral Buoyancy ROV Cable
Neutral Buoyancy ROV Cable
Custom Subsea Cable for Deep Sea Operations
Neutral buoyancy ROV cables are engineered for subsea environments where stability, control, and reliability are critical.
Unlike conventional underwater cables that tend to sink or float, neutral buoyancy designs achieve a balanced density in seawater, allowing the cable to remain suspended with minimal impact from gravity or uplift forces. This significantly improves ROV maneuverability, reduces mechanical stress on the tether system, and ensures more efficient operation in deep sea exploration, inspection, and mining applications.
Each cable is custom-designed based on operating depth, load conditions, and system architecture to ensure optimal performance in demanding underwater environments.
Key Features
↗Neutral buoyancy can be engineered to match:
freshwater (~1.00 g/cm³),
seawater (~1.02–1.03 g/cm³), or other specified densities.
↗Suitable for reeling and dynamic deployment systems
↗Integrated power, signal, and fiber optic options
↗High fatigue resistance for long-term subsea use
Specifications
Construction
Conductor: Fine-stranded, extra-flexible tinned soft copper wire, Compliant with IEC60228（VDE 0295）Class 6.
Insulation: TPE, TPE, TPV, XLPE, DPEM
Core Structure: anti-twist layering, grouped gap filling, twisted pairs, and layered binding.
Shielding: A combination of tinned copper braid provides EMI/RFI shielding.
Tensile Strength Member: Central Kevlar Core, Interstitial Kevlar Fill, Kevlar Braid
Sheath: Abrasion-resistant Polyurethane (PU), XLPE
Electronic Data
Working Voltage: 300/300V~0.6/1KV
Test Voltage: 2000 V
Insulation Resistance: ≥20 MΩ·km (at 20°C）
Minimum Bending Radius: Dynamic: 7.5 × OD, Fixed: 4 × OD
Operating Temperature: -40°C to +105°C
Number of cores x cross section | Conductor Diameter mm | Outer Diameter mm | Cable Weight kg/km | Minimum Breaking Load N |
|---|---|---|---|---|
| 2×1 | 0.2 | 8 | 30 | 2500 |
| 2×0.086 | 0.1 | 4.1 | 12 | 1300 |
| 2×1.5+2 cores fiber | 0.21 | 13 | 40 | 6000 |
| CAT5 | 0.25 | 8.5 | 20 | 6200 |
| 2×0.5+(2×0.3) | 0.15 | 9.8 | 22 | 2500 |
| 6×4+2 cores fiber | 0.21 | 35 | 470 | 5500 |
| 3×35+2×16+2 core Single-Mode optical fiber | 0.25 | 70 | 2200 | 12000 |
| 2×2.5+(3×2×0.3)P+4 cores Single-Mode optical fiber | 0.21 | 18 | 650 | 2000 |
| CAT5+2×2.5 | 0.21 | 10 | 80 | 1500 |
| 2×2.5 | 0.21 | 13 | 65 | 2000 |
| 2×1.5 | 0.2 | 9.5 | 50 | 1400 |
| 3×2×0.2 | 0.1 | 8 | 35 | 600 |
| 3×18AWG | 0.15 | 12 | 38 | 1000 |
We offer solutions tailored to specific customer requirements. 
Applications
Subsea Communications and Monitoring
Marine Research & Sonar Systems
Ideal for advanced ROV systems operating
Ordering Information
MOQ: project-based negotiation
Standard Lead Time: 5-10 weeks after order confirmation
Customization: Fully supported
