Zero buoyancy cable, underwater floating rope, floating line.
.Neutral buoyancy for effortless underwater positioning.
.Durable PUR sheath resists abrasion and chemicals.
.Multi-core options for power and data integration.
.High-visibility yellow for easy deployment.
.RoHS and CE certified, low MOQ starting at 100m.
At Shanghai Rousheng Wire & Cable Co., Ltd., we craft specialty cables like this zero buoyancy option to tackle real-world challenges in underwater operations. With expertise in over 100 types of high-flex and custom cables, our focus is on delivering gear that stays neutral in water—neither sinking nor floating excessively—for precise control in ROVs and subsea tasks. This polyurethane-sheathed cable, visible in bright yellow for easy spotting, integrates multi-core designs with fillers to achieve that perfect balance. Shipped to Europe and beyond 100 countries, it cuts down on drag and tangles, saving time and effort in demanding environments.
Key Features
Neutral Buoyancy for Stable Performance
Special fillers and a lightweight structure ensure the cable hovers at the desired depth, reducing operator fatigue during long dives or inspections.
Tough Polyurethane Construction
The outer jacket withstands abrasion, chemicals, and UV exposure, while stranded copper cores handle flexing without signal loss—built for the rigors of saltwater and pressure.
Customizable Core Options
From 4-core basics to 8-core twisted pairs, it supports power, data, and video transmission, with shielding to block interference in noisy underwater settings.
Easy Handling and Low MOQ
Lightweight yet strong, it’s simple to deploy and reel in; we offer low minimum orders starting at 100 meters, plus tailoring for length, color, or added armor.
Applications
Engineers rely on this cable for ROV tethers in marine surveys, underwater robotics in oil rigs, and floating lines in aquaculture or diving ops. Its neutral float keeps equipment maneuverable without constant adjustments, proving invaluable in exploration and maintenance across global waters.
Technical Specifications
| Parameter | Details |
|---|---|
| Conductor Material | Stranded Copper |
| Sheath Material | Polyurethane (PUR) |
| Core Options | 4-Core, 8-Core Twisted Pair |
| Buoyancy | Zero/Neutral (Floating) |
| Voltage Rating | Up to 300V |
| Temperature Range | -20°C to +60°C |
| Outer Color | Yellow (High Visibility) |
| Shielding | Foil or Braided for EMI |
| Certifications | RoHS, CE Compliant |
| Minimum Order | 100 Meters |
Note: Custom specs available, such as hybrid power-data configs or enhanced waterproofing for specific depths.
Frequently Asked Questions
How does zero buoyancy improve underwater work?
It keeps the cable suspended without pulling equipment down or up, allowing smoother navigation and less strain on motors or divers.
Is this cable suitable for saltwater environments?
Yes, the PUR sheath resists corrosion and marine growth, with proven durability in extended submersion tests.
What core configurations work best for ROVs?
8-core twisted pairs excel for combined power and signal needs, minimizing crosstalk in compact setups.
Can I customize the length or add features?
We handle requests for specific lengths, extra shielding, or buoyant markers—usually ready in 2-3 weeks.
Why choose Rousheng over generic options?
Our cables undergo rigorous testing for real buoyancy control, backed by years of supplying international projects, ensuring reliability where it counts.

