Published on:2026-05-24 Click:17
6-core underwater floating waterproof ROV cable with foamed PUR jacket. Near-neutral or positive buoyancy for ROV tether, underwater robot, and subsea equipment cable.
The 6-core underwater floating ROV cable provides six independent conductors for ROV tether, underwater robot wiring, and subsea equipment connections in a foamed PUR jacket that gives the cable near-neutral or positive buoyancy. With six cores, the cable supports a full ROV function set: 2 cores for main power supply, 2 for thruster/motor drive, and 2 for RS-485 control or sensor signals. The foamed polyurethane (PUR) jacket uses a micro-cellular expanded jacket compound with a bulk density lower than seawater (~1.025 g/cm³), giving the cable near-zero or positive net buoyancy. This eliminates tether sag and reduces drag force on the ROV, improving vehicle manoeuvrability and reducing tether management workload during subsea operations.
| Parameter | Specification |
|---|---|
| Cores | 6 x stranded tinned copper (CSA per spec) |
| Jacket | Foamed micro-cellular PUR |
| Buoyancy | Near-neutral to positively buoyant |
| Waterproof Rating | IP68 |
| Temperature Range | -40°C to +80°C |
| Colour | Yellow / black |
| Custom | Core CSA, buoyancy level, Kevlar, connector, length |
Request datasheet, custom length, or OEM pricing: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.
The jacket is manufactured from a micro-cellular expanded (foamed) polyurethane compound. During extrusion, a controlled foaming agent creates millions of tiny closed-cell air pockets within the jacket wall. These air cells reduce the bulk density of the jacket below that of seawater (~1.025 g/cm³), producing positive or neutral net buoyancy. The jacket retains all the abrasion resistance, oil resistance, and flexibility of standard PUR while achieving the buoyancy needed for ROV tether applications.
Yes. Buoyancy (positive, neutral, or slightly negative) is tuned by adjusting the foam cell density in the jacket compound and the jacket wall thickness. Specify the required net buoyancy per metre (in g/m) and the water salinity (fresh / brackish / seawater) when ordering. We can also add a Kevlar or Dyneema strength member to increase tensile strength without significantly changing buoyancy.
