Category: Seawater-Resistant Cable
Hotline
Tel: +86 133 1175 6197
WeChat: L13311756197
Email: postmaster@suoqi-cable.com
Floating cable, zero-buoyancy special, underwater equipment signal and power transmission cable
1. Core Technology Breakthrough
1. Zero-buoyancy precise control technology
By controlling the foam layer density gradient process, the overall density of the cable is precisely matched to seawater (1.025 g/cm³), achieving a fully neutral buoyancy state. This design avoids the displacement of equipment caused by the weight of traditional cables and is especially suitable for ROVs (remotely operated vehicles) performing delicate operations in narrow pipelines or coral reef areas, reducing equipment energy consumption while improving operational precision.
2. Double-layer shielding anti-interference system
It uses a tin-plated copper wire woven (shielding density ≥85%) aluminum foil miceller composite shielding structure, effectively suppressing electromagnetic interference in the 100kHz-3GHz frequency band, ensuring signal transmission stability for underwater high-definition cameras, sonars, and other equipment. Measured data shows that in environments with strong electromagnetic interference (such as near submarine cables), the signal attenuation rate is less than 0.5dB/km, far exceeding industry standards.
3. Deep-sea pressure protection system
The outer sheath is made of imported ultra-wear-resistant polyurethane (PUR) material. After a special cross-linking process, it can withstand 50MPa water pressure (equivalent to a water depth of 5000 meters). It also features an IP68-rated waterproof inner layer using a low-viscosity, high-strength extruded TPE inner sheath, forming a double-insurance waterproof structure to ensure no risk of water infiltration in long-term submerged environments.
2. Innovative Structural Design
1. Multi-core composite conductor architecture
Power Transmission Layer: Uses 7/0.30mm² multi-strand finely twisted oxygen-free copper wire, with a conductor DC resistance ≤69.2Ω/km (20℃), capable of stably transmitting 24V/48V DC power, meeting the high power requirements of underwater thrusters, robotic arms, and other equipment.
Signal Transmission Layer: The 3-pair, 6-core signal cable uses foamed thermoplastic elastomer insulation with a dielectric constant ≤2.3, effectively reducing signal transmission loss and supporting 1Gbps high-speed data transmission.
2. High-strength tensile reinforcement
Kevlar fiber braided layer: evenly distributed along the cable axis, with a tensile strength of up to 2000 kgf, capable of withstanding the dynamic stress when underwater equipment is towed.
Central tensile element: Made of aramid composite fiber, it provides stress buffering when the cable is bent, extending its service life to over 1 million bending cycles.
3. Intelligent self-healing coating technology
The outer sheath surface is coated with a smart coating containing microcapsules. When the cable is scratched, the microcapsules rupture and release a repair agent, automatically filling the cracks and solidifying; at the same time, the slow-release biocide can prevent the attachment and growth of algae and shellfish, reducing maintenance frequency.
3. Strict Performance Indicators
Indicator name
Technical Parameters
Test standard
Operating voltage
Insulation resistance
Bending radius
Mobile installation: 7.5×D; Fixed installation: 4×D
Operating temperature range
-40°C to 90°C
Salt spray resistance test
1000 hours corrosion-free
Radiation resistance
4. Multiple Application Scenarios
1. Ocean Research and Exploration
Deep-sea Sampling: Provides stable power and signal transmission for underwater robots, supporting their tasks such as sediment sampling and biological observation at depths of 6000 meters, ensuring real-time data return without delay.
Subsea Pipeline Inspection: The cable's neutral buoyancy allows it to move closely along the pipeline surface, and when used with eddy current flaw detection equipment, it enables precise localization of pipeline corrosion points, improving inspection efficiency by 30%.
2. Underwater Engineering Operations
Bridge Pile Inspection: The cable can withstand 10 MPa water pressure, connecting to ultrasonic detectors in underwater environments at 100 meters depth to perform 360° no-dead-angle scanning of bridge piles, with detection accuracy up to ±0.1mm.
Port Facility Maintenance: Works with underwater robotic arms to carry out tasks such as replacing dock fenders and repairing gate seals. The cable's high flexibility allows it to adapt to bending requirements in complex spaces.
3. Emergency Rescue and Salvage
Shipwreck Salvage: The cable's tensile strength can reach 8 tons, working with hydraulic cutters to cut shipwreck steel cables while transmitting underwater footage to the command center in real time, reducing decision response time to within 15 minutes.
Underwater Search and Rescue: In turbid waters, the cable's anti-interference performance ensures clear sonar signals, helping to locate drowning victims or wrecked vehicles, expanding the search range to twice that of traditional equipment.
5. Customized solutions
Shanghai Suo Enterprise offers full-process customization services:
Customizable structure: supports the number of core wires (2-24 cores), shielding type (split/main screen), sheath color, and other personalized designs.
Performance customization: Tensile strength (20-2000kg), waterproof depth (0-5000 meters), and operating temperature range (-100°C to 200°C) can be adjusted according to requirements.
Support: and can provide DNV GL, ABS, etc. according to customer requirements
6. Quality assurance system
Material traceability: The conductor copper material has a purity of ≥99.99%, and the sheath material is UL94 V-0 flame-retardant
Process control: Uses German-imported extruders to ensure insulation thickness tolerance ≤±0.02mm, foam layer density uniformity deviation of ≤±3%.
: Each batch of products undergoes 3000V withstand voltage testing, 500 hours of salt spray testing, and 100,000 bend tests, with a defect rate controlled below 0.1%.
Shanghai Suoqi's zero-buoyancy floating cables, with their leading technological innovation, stringent quality control, and flexible customization capabilities, provide reliable connection solutions for underwater operations, supporting efficient advancement in marine resource development, underwater engineering, and scientific research exploration. For more detailed technical documentation or sample testing, please contact the technical support team of Shanghai Suoqi directly.
