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Our offered Product range includes high temperature fep teflon cable, Zero Buoyancy Cable, diving umbilical underwater cable, diver umbilical cctv cable and 3 Cores Pool Robot Cable.
A submarine coaxial cable (also referred to as an underwater coaxial cable) is a specialized type of coaxial cable designed for deployment in marine environments—including oceans, seas, lakes, and coastal waters. Unlike standard terrestrial coaxial cables, it is engineered to withstand extreme underwater conditions, such as high hydrostatic pressure, corrosion from saltwater, abrasion from seabed sediments or marine life, and temperature fluctuations.
Core Structure & Design
Submarine coaxial cables retain the fundamental coaxial structure (inner conductor, dielectric insulator, outer conductor, and outer sheath) but incorporate ruggedized layers for underwater durability:
Key Applications
An ROV Cable is a complex electro-mechanical assembly that is fundamental to the operation of any Remotely Operated Vehicle. It is a hybrid cable that integrates multiple functionalities into a single, robust package capable of performing in the most challenging environment on Earth: the deep ocean.
1. Core Functions & Design
The cable is designed around three primary functions:
Power Transmission: Contains copper power conductors sized to deliver high voltage and current from the surface vessel to the ROV, often over long distances (up to several kilometers), minimizing voltage drop.
Data Transmission: Incorporates high-speed data elements, typically fiber optics, for the lossless transmission of high-definition video, sonar imagery, and control data. Copper twisted pairs are also used for lower-speed sensor data and control signals.
Mechanical Strength: Includes a central or integrated strength member, made of high-tensile synthetic fibers like Aramid (e.g., Kevlar®) or steel wire armor. This member carries the entire weight of the cable and the ROV during deployment, operation, and recovery, while the electrical/optical components remain stress-free.
2. Key Engineering Characteristics
Pressure Resistance: As depth increases, hydrostatic pressure becomes immense. The cable construction must prevent the collapse of air-filled spaces and the penetration of seawater (hyperbaric barrier). This is achieved through pressure-compensated filling compounds, solid dielectric materials, and tightly extruded jackets.
Bend Radius & Flexibility: A critical parameter. The cable must be flexible enough to be deployed over sheaves and stored on reels, yet robust enough not to kink. The minimum bend radius is strictly defined to protect the internal fibers and conductors.
Neutral Buoyancy & Weight: For deep-water ROVs, the cable is often designed to be neutrally buoyant or slightly negative in seawater. This reduces drag and prevents the cable from sinking and creating excessive load on the ROV or from floating up and tangling.
Shielding & Impedance Control: Electromagnetic shielding (braids, tapes) is vital to protect sensitive signals from noise generated by the power conductors and other surface equipment. Precise impedance control (e.g., for coaxial video lines) ensures signal integrity.
3. Common Types
Tether Cable (Short): A shorter, more flexible cable directly connected to the ROV, designed to handle frequent handling and movement.
Main Umbilical (Long): The long cable that connects from the surface vessel to the ROV or a Tether Management System (TMS). It is designed for long-distance power and data transmission with high tensile strength.
Armored vs. Unarmored: Armored cables have a layer of steel wire for extreme abrasion resistance and crush resistance (e.g., for seabed operations), while unarmored cables rely on synthetic strength members for deep-water column use.
4. Applications
Offshore Oil & Gas (inspection, maintenance, construction)
Scientific Research & Seabed Mapping
Defense & Security (mine countermeasures, harbor inspection)
Offshore Wind Farm Installation and Maintenance
Search and Recovery Operations
Aquaculture and Dam Inspection
Zero Buoyancy Cable is a complex electro-mechanical assembly that is fundamental to the operation of any Remotely Operated Vehicle. It is a hybrid cable that integrates multiple functionalities into a single, robust package capable of performing in the most challenging environment on Earth: the deep ocean.
1. Core Functions & Design
The cable is designed around three primary functions:
Power Transmission: Contains copper power conductors sized to deliver high voltage and current from the surface vessel to the ROV, often over long distances (up to several kilometers), minimizing voltage drop.
Data Transmission: Incorporates high-speed data elements, typically fiber optics, for the lossless transmission of high-definition video, sonar imagery, and control data. Copper twisted pairs are also used for lower-speed sensor data and control signals.
Mechanical Strength: Includes a central or integrated strength member, made of high-tensile synthetic fibers like Aramid (e.g., Kevlar®) or steel wire armor. This member carries the entire weight of the cable and the ROV during deployment, operation, and recovery, while the electrical/optical components remain stress-free.
2. Key Engineering Characteristics
Pressure Resistance: As depth increases, hydrostatic pressure becomes immense. The cable construction must prevent the collapse of air-filled spaces and the penetration of seawater (hyperbaric barrier). This is achieved through pressure-compensated filling compounds, solid dielectric materials, and tightly extruded jackets.
Bend Radius & Flexibility: A critical parameter. The cable must be flexible enough to be deployed over sheaves and stored on reels, yet robust enough not to kink. The minimum bend radius is strictly defined to protect the internal fibers and conductors.
Neutral Buoyancy & Weight: For deep-water ROVs, the cable is often designed to be neutrally buoyant or slightly negative in seawater. This reduces drag and prevents the cable from sinking and creating excessive load on the ROV or from floating up and tangling.
Shielding & Impedance Control: Electromagnetic shielding (braids, tapes) is vital to protect sensitive signals from noise generated by the power conductors and other surface equipment. Precise impedance control (e.g., for coaxial video lines) ensures signal integrity.
3. Common Types
Tether Cable (Short): A shorter, more flexible cable directly connected to the ROV, designed to handle frequent handling and movement.
Main Umbilical (Long): The long cable that connects from the surface vessel to the ROV or a Tether Management System (TMS). It is designed for long-distance power and data transmission with high tensile strength.
Armored vs. Unarmored: Armored cables have a layer of steel wire for extreme abrasion resistance and crush resistance (e.g., for seabed operations), while unarmored cables rely on synthetic strength members for deep-water column use.
4. Applications
Offshore Oil & Gas (inspection, maintenance, construction)
Scientific Research & Seabed Mapping
Defense & Security (mine countermeasures, harbor inspection)
Offshore Wind Farm Installation and Maintenance
Search and Recovery Operations
Aquaculture and Dam Inspection
An ROV Cable is a complex electro-mechanical assembly that is fundamental to the operation of any Remotely Operated Vehicle. It is a hybrid cable that integrates multiple functionalities into a single, robust package capable of performing in the most challenging environment on Earth: the deep ocean.
1. Core Functions & Design
The cable is designed around three primary functions:
Power Transmission: Contains copper power conductors sized to deliver high voltage and current from the surface vessel to the ROV, often over long distances (up to several kilometers), minimizing voltage drop.
Data Transmission: Incorporates high-speed data elements, typically fiber optics, for the lossless transmission of high-definition video, sonar imagery, and control data. Copper twisted pairs are also used for lower-speed sensor data and control signals.
Mechanical Strength: Includes a central or integrated strength member, made of high-tensile synthetic fibers like Aramid (e.g., Kevlar®) or steel wire armor. This member carries the entire weight of the cable and the ROV during deployment, operation, and recovery, while the electrical/optical components remain stress-free.
2. Key Engineering Characteristics
Pressure Resistance: As depth increases, hydrostatic pressure becomes immense. The cable construction must prevent the collapse of air-filled spaces and the penetration of seawater (hyperbaric barrier). This is achieved through pressure-compensated filling compounds, solid dielectric materials, and tightly extruded jackets.
Bend Radius & Flexibility: A critical parameter. The cable must be flexible enough to be deployed over sheaves and stored on reels, yet robust enough not to kink. The minimum bend radius is strictly defined to protect the internal fibers and conductors.
Neutral Buoyancy & Weight: For deep-water ROVs, the cable is often designed to be neutrally buoyant or slightly negative in seawater. This reduces drag and prevents the cable from sinking and creating excessive load on the ROV or from floating up and tangling.
Shielding & Impedance Control: Electromagnetic shielding (braids, tapes) is vital to protect sensitive signals from noise generated by the power conductors and other surface equipment. Precise impedance control (e.g., for coaxial video lines) ensures signal integrity.
3. Common Types
Tether Cable (Short): A shorter, more flexible cable directly connected to the ROV, designed to handle frequent handling and movement.
Main Umbilical (Long): The long cable that connects from the surface vessel to the ROV or a Tether Management System (TMS). It is designed for long-distance power and data transmission with high tensile strength.
Armored vs. Unarmored: Armored cables have a layer of steel wire for extreme abrasion resistance and crush resistance (e.g., for seabed operations), while unarmored cables rely on synthetic strength members for deep-water column use.
4. Applications
Offshore Oil & Gas (inspection, maintenance, construction)
Scientific Research & Seabed Mapping
Defense & Security (mine countermeasures, harbor inspection)
Offshore Wind Farm Installation and Maintenance
Search and Recovery Operations
Aquaculture and Dam Inspection
Additional Information:
Payment Terms : T/T
A Diver Umbilical is a composite assembly that serves as the physical and physiological connection between a commercial diver and the surface support team. Its integrity is paramount for life support, operational efficiency, and diver safety. Unlike a simple cable, it is a system integrating multiple components within a unified sheath or bundled together.
1. Core Components & Functions
The umbilical typically consists of the following elements, helically wound around a central strength member:
Gas Hose: A high-pressure hose that delivers breathing gas (air, nitrox, heliox, etc.) from the surface compressor or gas banks to the diver's helmet or full-face mask. It is typically made of synthetic rubber with a reinforcing braid for pressure retention.
Communication Cable: This contains twisted pair copper wires for a full-duplex voice communication system. It is heavily shielded to ensure clear, uninterrupted audio, free from electrical noise. This is the diver's primary lifeline for reporting status and receiving instructions.
Strength Member: The core component that bears the mechanical load. This can be a galvanized steel wire rope (for heavy-duty applications) or a high-strength synthetic fiber like Dyneema® or Kevlar® (which is lighter and neutrally buoyant). This member is used for hoisting or recovering the diver if necessary.
Electrical Conductors (Optional): Insulated copper wires to provide low-voltage DC or AC power for:
Diver Heater Suit: To maintain body temperature in cold water.
Helmet Light or Underwater Tool Power.
Hot Water Hose (Optional): In very cold water operations, a separate hose may be included to pump heated water from the surface to a diver's hot water suit, which circulates the water to keep the diver warm.
2. Key Engineering & Safety Features
Robustness and Abrasion Resistance: The outer jacket, often made of polyurethane or synthetic rubber, is designed to withstand abrasion against ship hulls, rocks, and other underwater structures.
Kink Resistance: A critical safety feature. The design and materials are chosen to prevent kinking, which could restrict gas flow or damage internal components.
Buoyancy Characteristics: Depending on the application, umbilicals can be designed to be slightly negative, neutral, or positive in buoyancy to minimize drag and diver effort.
Marker Spacing: The umbilical is often marked at regular intervals (e.g., every 5 or 10 feet) to allow the surface team to accurately know how much umbilical has been deployed and thus estimate the diver's distance from the dive point.
Pressure Rating: The gas hose must be rated for pressures significantly higher than the maximum operating depth requires.
3. Applications
Offshore Oil & Gas Industry (platform inspection, maintenance)
Ship Husbandry (hull cleaning, inspection, and repair)
Civil Engineering (dam, lock, and bridge inspection/repair)
Search and Recovery Operations
Scientific Diving Support
Military and Police Diving Operations
Additional Information:
Payment Terms : T/T
A Diver Umbilical is a composite assembly that serves as the physical and physiological connection between a commercial diver and the surface support team. Its integrity is paramount for life support, operational efficiency, and diver safety. Unlike a simple cable, it is a system integrating multiple components within a unified sheath or bundled together.
1. Core Components & Functions
The umbilical typically consists of the following elements, helically wound around a central strength member:
Gas Hose:A high-pressure hose that delivers breathing gas (air, nitrox, heliox, etc.) from the surface compressor or gas banks to the diver's helmet or full-face mask. It is typically made of synthetic rubber with a reinforcing braid for pressure retention.
Communication Cable:This contains twisted pair copper wires for a full-duplex voice communication system. It is heavily shielded to ensure clear, uninterrupted audio, free from electrical noise. This is the diver's primary lifeline for reporting status and receiving instructions.
Strength Member:The core component that bears the mechanical load. This can be agalvanized steel wire rope(for heavy-duty applications) or a high-strength synthetic fiber likeDyneemaorKevlar(which is lighter and neutrally buoyant). This member is used for hoisting or recovering the diver if necessary.
Electrical Conductors (Optional):Insulated copper wires to provide low-voltage DC or AC power for:
Diver Heater Suit:To maintain body temperature in cold water.
Helmet LightorUnderwater Tool Power.
Hot Water Hose (Optional):In very cold water operations, a separate hose may be included to pump heated water from the surface to a diver's hot water suit, which circulates the water to keep the diver warm.
2. Key Engineering & Safety Features
Robustness and Abrasion Resistance:The outer jacket, often made of polyurethane or synthetic rubber, is designed to withstand abrasion against ship hulls, rocks, and other underwater structures.
Kink Resistance:A critical safety feature. The design and materials are chosen to prevent kinking, which could restrict gas flow or damage internal components.
Buoyancy Characteristics:Depending on the application, umbilicals can be designed to be slightly negative, neutral, or positive in buoyancy to minimize drag and diver effort.
Marker Spacing:The umbilical is often marked at regular intervals (e.g., every 5 or 10 feet) to allow the surface team to accurately know how much umbilical has been deployed and thus estimate the diver's distance from the dive point.
Pressure Rating:The gas hose must be rated for pressures significantly higher than the maximum operating depth requires.
3. Applications
Offshore Oil & Gas Industry (platform inspection, maintenance)
Ship Husbandry (hull cleaning, inspection, and repair)
Civil Engineering (dam, lock, and bridge inspection/repair)
Search and Recovery Operations
Scientific Diving Support
Military and Police Diving Operations
The cable of a pool cleaning robot is a critical component that directly impacts the device's performance, maneuverability, and longevity. It is far more than a simple power cord; it is a dynamic link engineered for a demanding aquatic environment.
1. Core Design Objectives
Tangle Prevention:The cable must be designed to minimize memory and resist twisting, allowing it to lay flat on the water's surface or in the water as the robot moves in complex patterns. A tangled cable can restrict the robot's movement and render it ineffective.
Durability in Harsh Conditions:The cable is constantly exposed to a cocktail of chemicals (chlorine, bromine), UV rays from the sun, and wide temperature variations. The materials must not degrade, become brittle, or crack under these conditions.
Optimal Buoyancy:The cable is typically designed to beneutrally buoyantor slightly positive. This prevents it from sinking and getting caught in the robot's tracks or brushes, while also reducing drag on the robot, which conserves battery power (for cordless models that use a cable for docking/charging) or improves efficiency.
2. Key Characteristics & Construction
Conductors:Fine-stranded, tinned copper conductors are often used. The tinning provides an extra layer of protection against corrosion from moisture ingress over time.
Insulation and Jacket:The primary insulating and jacket material is almost always a high-gradePVCorThermoplastic Elastomer (TPE).
PVC:Cost-effective and offers good general resistance.
TPE/TPR:Often preferred for superior flexibility, a wider temperature range, and better resistance to kinking. It feels softer and is more durable in the long term.
Waterproofing:A critical aspect is the waterproof joint where the cable enters the robot's body. This is typically achieved with a robustmolded potting sealthat creates a permanent, watertight barrier, preventing water from seeping into the robot's electronics.
Length:Cables are typically between 10 to 15 meters (30 to 50 feet) long to allow the robot to clean large pools from a single power outlet location.
3. Comparison with Other Cables
vs. Standard Power Cords:Standard cords are stiff, sink, and are not resistant to pool chemicals or UV. They would quickly fail and tangle in this application.
vs. Underwater ROV Cables:While both are used underwater, ROV cables are designed for deep-water pressure and much greater mechanical strength. Pool cleaner cables prioritize extreme flexibility, tangle-resistance, and chemical/UV resistance at a low cost.
4. Common Issues
Tangling:Poor quality cables can develop memory and twist.
Cracking:Low-quality jacket materials can crack when exposed to UV and chemicals, exposing the internal wires.
Water Ingress:Failure of the molded seal can lead to water entering the robot, causing permanent damage.
Additional Information:
Payment Terms : T/T
Core Features:
Deep-Sea Protection: Constructed with triple-extruded EPDM rubber insulation.
Dynamic Flexibility: Built-in aramid tensile fibers support over 20, 000 bending cycles (180, compliant with EN 60811), suitable for dynamic operations such as ship repair.
Welding Customization: Tin-plated copper core conductors prevent oxidation, combined with EMI shielding to ensure stable welding current underwater (voltage fluctuation 3%).
Safety Enhancement: Fluorescent striping on the outer layer and anti-shark bite braided armor provide 15-meter visibility in turbid water and resist mechanical damage from marine life.
Technical Specifications:
Item Specification
Operating Depth 0-60 meters
Conductor Cross-Section 16-95 mm (multiple options available)
Temperature Resistance -40 to +90
Oil Resistance ISO 1817 compliant (volume expansion
An ROV Cable is a complex electro-mechanical assembly that is fundamental to the operation of any Remotely Operated Vehicle. It is a hybrid cable that integrates multiple functionalities into a single, robust package capable of performing in the most challenging environment on Earth: the deep ocean.
1. Core Functions & Design
The cable is designed around three primary functions:
Power Transmission:Contains copper power conductors sized to deliver high voltage and current from the surface vessel to the ROV, often over long distances (up to several kilometers), minimizing voltage drop.
Data Transmission:Incorporates high-speed data elements, typicallyfiber optics, for the lossless transmission of high-definition video, sonar imagery, and control data. Copper twisted pairs are also used for lower-speed sensor data and control signals.
Mechanical Strength:Includes a central or integratedstrength member, made of high-tensile synthetic fibers likeAramid (e.g., Kevlar)or steel wire armor. This member carries the entire weight of the cable and the ROV during deployment, operation, and recovery, while the electrical/optical components remain stress-free.
2. Key Engineering Characteristics
Pressure Resistance:As depth increases, hydrostatic pressure becomes immense. The cable construction must prevent the collapse of air-filled spaces and the penetration of seawater (hyperbaric barrier). This is achieved through pressure-compensated filling compounds, solid dielectric materials, and tightly extruded jackets.
Bend Radius & Flexibility:A critical parameter. The cable must be flexible enough to be deployed over sheaves and stored on reels, yet robust enough not to kink. Theminimum bend radiusis strictly defined to protect the internal fibers and conductors.
Neutral Buoyancy & Weight:For deep-water ROVs, the cable is often designed to beneutrally buoyantor slightly negative in seawater. This reduces drag and prevents the cable from sinking and creating excessive load on the ROV or from floating up and tangling.
Shielding & Impedance Control:Electromagnetic shielding (braids, tapes) is vital to protect sensitive signals from noise generated by the power conductors and other surface equipment. Precise impedance control (e.g., for coaxial video lines) ensures signal integrity.
3. Common Types
Tether Cable (Short):A shorter, more flexible cable directly connected to the ROV, designed to handle frequent handling and movement.
Main Umbilical (Long):The long cable that connects from the surface vessel to the ROV or a Tether Management System (TMS). It is designed for long-distance power and data transmission with high tensile strength.
Armored vs. Unarmored:Armored cables have a layer of steel wire for extreme abrasion resistance and crush resistance (e.g., for seabed operations), while unarmored cables rely on synthetic strength members for deep-water column use.
4. Applications
Offshore Oil & Gas (inspection, maintenance, construction)
Scientific Research & Seabed Mapping
Defense & Security (mine countermeasures, harbor inspection)
Offshore Wind Farm Installation and Maintenance
Search and Recovery Operations
Aquaculture and Dam Inspection
Additional Information:
Payment Terms : T/T
An underwater sonar cable is a critical link in the sonar system, directly impacting the system's maximum range, resolution, and data fidelity. It is an electro-mechanical assembly that must perform two primary functions simultaneously: efficiently deliver high-power electrical energy and faithfully transmit low-power returning signals, all while enduring a harsh marine environment.
1. Core Functions & Electrical Requirements
Transmit Path (High Power):The cable must carry high-voltage, high-current electrical pulses from the sonar transmitter on the vessel to the transducer (the "speaker" that generates sound waves) with minimal power loss.
Receive Path (High Sensitivity):After the sound wave echoes off an object, the transducer (now acting as a "microphone") generates an extremely faint electrical signal. The cable must transmit this weak signal back to the surface receiver with absolute minimal degradation, attenuation, or introduction of noise.
2. Key Design & Construction
To meet these demanding requirements, sonar cables feature a sophisticated construction:
Center Conductor:A high-purity copper conductor is used for its excellent electrical conductivity.
Dielectric Insulation:A high-quality dielectric material (e.g., foam polyethylene) surrounds the center conductor. This material is chosen for its stablecharacteristic impedance(usually 50 or 75) and lowsignal attenuation(loss) per meter.
Shielding:This is arguably the most critical element. Multiple layers of shielding are common:
Braid Shield:A high-coverage (often >95%) tinned copper braid provides excellent protection against electromagnetic interference (EMI) and serves as the return path for the electrical current.
Foil Shield:An underlying aluminum-polyester foil tape provides 100% coverage against high-frequency noise.
Strength Member:For towed arrays or deep-water applications, the cable incorporates a central strength member made ofaramid fiber (e.g., Kevlar)or steel wire to handle the towing tension and the weight of the array.
Jacket:The outer jacket is made from tough, abrasion-resistant materials likepolyurethane (PUR)orPVC, resistant to seawater, sunlight, and chemicals. It is often brightly colored (e.g., orange) for high visibility.
3. Types of Sonar Cables
Coaxial Sonar Cable:A single coaxial core for simpler systems. May be bundled with strength members within an overall jacket.
Hybrid Sonar Cable:Incorporates multiple coaxial elements for multi-beam sonars, along with separate twisted pairs for powering auxiliary sensors and data communication, all integrated around a central strength member.
Towed Array Cable:Specifically designed for towing behind a vessel, featuring streamlined hydrodynamic characteristics, high tensile strength, and sometimes built-in stress relief.
4. Applications
Naval and Defense Sonar Systems
Hydrographic Survey and Seabed Mapping
Fisheries Research
Offshore Oil & Gas Exploration (seismic surveys)
Underwater Search and Recovery Operations
Scientific Research Vessels
Robot twist cables are suitable for electrical connections in robots, robotic arms, and high-speed drag chain systems, especially for use in mechanical environments that require bending and twisting movements, and can be applied in the field of industrial robots.
The twisting angle in the device can reach 360 without a core, making it suitable for use in industrial environments that require excellent mechanical and chemical resistance.
Product Features
High flexibility, resistant to bending and torsion; The outer sheath is wear-resistant and tear resistant;
The twisting angle can reach 360 ; 5-10 million cycles of twisting service life;
Oil resistance meets EN60811-404; Flame retardant in accordance with IEC60332-1-2;
Compliant with CE European certification. Environmentally friendly materials, compliant with RoHS;
Cable Structure
Conductor:
Material: Ultra fine bare copper wire twisted.
Structure: Multiple strands of thin copper wire twisted together (usually Class 5 or Class 6 grade) to ensure the flexibility of the cable.
Insulation layer:
Material: TPE (thermoplastic elastomer) or PUR (polyurethane).
Function: Isolate conductors and provide excellent electrical insulation performance.
Fill layer:
Material: Commonly used aramid fiber or similar materials.
Function: Enhance the tensile strength and flexibility of the cable.
Outer sheath:
Materials: commonly used NBR+PVC, TPE (thermoplastic elastomer) or PUR (polyurethane).
Features: Wear resistant, oil resistant, chemical resistant, suitable for industrial environments.
Electrical parameters
Working voltage U/U0:
S0.75mm2300/500V
S1.0mm2450/750V
Test voltage:
S0.75mm22000V50Hz, 5Min
S1.0mm23000V50Hz5Min
Minimum insulation resistance at 70 C:
20M. Km
Mobile Parameters
Bending radius:
Drag chain movement: 7 times the diameter of the cable
Fixed installation: 4 times the diameter of the cable
Temperature range for use
Drag chain movement: -15 to+70 can be customized according to requirements
Fixed installation: -40 to+80
selection suggestions
Select based on the twisting angle:
Ensure that the maximum twisting angle of the cable meets the requirements of the robot system for twisting and bending.
Select based on load:
Power cables need to meet power requirements, while signal cables need to meet transmission requirements.
Select based on shielding requirements:
When interfering with the environment, choose cables with shielding layers.
Select based on environmental conditions:
Choose cables that are resistant to chemical corrosion (such as PUR sheaths) in environments with oil stains, acid and alkali.
Select based on dynamic performance:
When frequently twisting and bending, choose cables with high flexibility and tensile strength.
Core functions and importancePower Transmission: Provides power for the driving motors, searchlights, cleaning devices, and other components of the robot.Signal Control: Transmitting control commands from the operator to the robot (forward, backward, steering, focusing, etc.).Data/Video Transmission: Real time transmission of high-definition videos (sometimes including sonar, laser ranging, etc.) captured by the robot's built-in camera back to the control end.Mechanical Strength: It is a critical load-bearing component in the entire system that can withstand the tension and friction generated by the robot dragging cables inside the pipeline. Key characteristics and technical parameters Due to the special application scenarios, pipeline robot cables must have the following characteristics:1. High wear resistance is achieved through the use of special material sheaths (such as polyurethane PUR, nitrile rubber NBR) and high-density woven reinforcement layers. Resist long-term friction with the inner walls of pipelines (concrete, metal, plastic) to prevent skin breakage and short circuits. 2. Built in aramid yarn, Kevlar or high-strength polyester weaving layer as tensile and extrusion resistant components. To withstand the weight of the robot and the enormous pulling force when stuck, preventing the cable from being pulled apart; Resist external compression and protect internal core wires. 3. Waterproof and corrosion-resistant high waterproof rating (such as IP67/IP68), sealed sheath, waterproof filling. The pipeline is filled with accumulated water, silt, oil, chemicals, etc., and the cable must be completely sealed to prevent internal damage. 4. Core wires with flexible and anti twist precision twisted pitch, special twisted structure, and flexible conductors (such as multi strand ultra-fine oxygen free copper wire). When the robot moves, the cable needs to be frequently bent and twisted, and excellent flexibility ensures signal stability and long service life. 5. Weather resistance and temperature adaptability, wide temperature design (such as -40 C to+80 C), oil resistance, acid and alkali resistance, and UV resistance (for outdoor recycling). Adapt to the temperature differences between winter and summer in underground pipelines, as well as exposure to various corrosive chemical media. 6. High quality signal integrity shielding (such as aluminum foil+tinned copper braided mesh), twisted pair design, impedance matching. Effectively resist external electromagnetic interference, ensuring stable and delay free transmission of high-definition video signals and control signals. Typical structural analysis A high-quality pipeline robot cable is usually a multi-layer composite structure, including:Conductor: Multi strand ultra-fine oxygen free copper wire, providing excellent flexibility and conductivity.Insulation layer: Special TPE (thermoplastic elastomer) or PVC, isolating each core wire.Inner sheath/filling: Wrap the insulated wire core to form a round cable body, increasing flexibility.Shielding layer: aluminum foil shielding layer (to prevent high-frequency interference)+tin plated copper braided mesh (to prevent low-frequency interference and provide grounding), with a coverage rate usually>85%.Tensile element: (Kevlar) It is a top-level configuration, parallel or woven outside the shielding layer, providing core tensile strength.Outer sheath: Made of wear-resistant polyurethane PUR or synthetic rubber, it is the first line of defense against external physical and chemical damage, usually bright yellow or orange, very eye-catching, easy to identify and recycle. Application scenarios Municipal pipeline inspection: CCTV inspection of drainage pipes, sewage pipes, and comprehensive pipe galleries.Industrial pipeline inspection: Inner wall inspection of petrochemical pipelines, gas pipelines, and power plant pipelines.Pipeline cleaning and maintenance: Provide power and control for maintenance tools such as high-pressure w
1) Overview & Importance
A sewer inspection robot cable is far more than a simple wire. It serves as thelifelineandcentral nervous systemof the robotic crawler, simultaneously performing the critical functions ofpower transmission, signal control, data communication, and mechanical traction. Operating in the most demanding environments, its reliability is paramount to the success of any pipeline inspection mission.
2) Key Features & Technical Advantages
| Abrasion Resistance | Outer sheath made ofabrasion-resistant polyurethane (PUR)or synthetic rubber compound. | |
| Tensile Strength & Crush Resistance | IntegratedKevlar/Aramid Yarnbraided reinforcement layer. | |
| Water & Chemical Resistance | IP68-ratedwaterproof integrity. Fully sealed sheath resistant to oils, sewage, acids, alkalis, and other chemicals. | |
| Flexibility & Anti-Torsion | Fine-stranded, oxygen-free copper conductors. Specialized stranding design for high flexibility. | |
| EMI/RFI Shielding | Dual-layer shielding(aluminum foil + high-density tinned copper braid) with >85% coverage. | |
| Temperature Resistance | Wide operating temperature range (e.g., -40C to +80C). |
3) Typical Construction
A high-quality sewer cable features a robust, multi-layer construction:
Conductors:Multi-stranded, fine-grade bare copper for optimal flexibility and conductivity.
Insulation:High-quality TPE or PVC to individually insulate each conductor.
Filling:Filler threads to maintain a round cable core and enhance flexibility.
Shielding:Combination of aluminum foil and tinned copper braiding for superior EMI protection.
Strength Member:A central or braided layer ofKevlararamid fiber, providing exceptional tensile strength.
Outer Sheath:Bright **orangeoryellowabrasion-resistant PUR, offering ultimate protection and high visibility for retrieval.
4) Common Specifications & selection Guide
| Conductor Count | 4, 6, 8, 12 cores or more | Based on functions:Power (2 cores) + Video (2 coax) + Control (2 cores) + Spares. |
| Shielding | Single Shield, Dual Shield | Dual shielding (Foiled+Braid) is essentialin electrically noisy environments near power lines or industrial sites. |
| Jacket Material | PUR (Polyurethane) | Premium choice.Best overall resistance to abrasion, oil, chemicals, and hydrolysis. |
| TPE/PVC | Cost-effective for light-duty, short-distance applications in drier conditions. | |
| Rubber | Excellent temperature resistance, but heavier and less flexible. | |
| Tensile Element | With Kevlar | Highly recommended.Non-negotiable for heavy robots and long-distance inspections. |
| Without | Suitable only for very lightweight, short-range systems. | |
| IP Rating | IP68 | Mandatory.Ensures functionality during permanent submersion in water under pressure. |
5) Application Scenarios
CCTV Pipeline Inspection:Municipal sewer and stormwater lines, culverts.
Industrial Pipeline Inspection:Chemical discharge lines, utility tunnels.
Pipeline Rehabilitation:Providing power and control for cleaning, grinding, and epoxy-spraying tools.
Drag chain cables are a critical component in modern industrial automation, robotics, and machinery where cables need to move with the equipment. They are installed in cable carriers (drag chains) that guide and protect them along a defined path. The primary challenge these cables address is combating material fatigue caused by repetitive, high-frequency bending.
1. Core Design Philosophy
The design focuses on longevity under dynamic stress, which is the opposite requirement of standard fixed installation cables.
Conductors:The copper conductors arefine-strandedand bundled in the tightest possible lay. This construction allows the individual strands to move against each other freely during flexing, distributing the mechanical stress and preventing premature breakage.
Stranding:Cables designed forbendinguse a special bunching stranding, while those designed fortorsionuse a layered stranding that allows the cable to twist.
Component Separation:Internal components (power, signal, data pairs) are oftenshielded individuallyand then bundled together with a non-stick material (like a PTFE tape) to allow them to slide against each other. This prevents the components from bonding together, which would create a stiff, monolithic structure prone to failure.
Jacket Material:The outer jacket is crucial. It must be flexible, yet extremely resistant to abrasion, oil, and cutting. Common materials includePUR (Polyurethane)andTPE (Thermoplastic Elastomer), which offer an excellent balance of these properties. The jacket is extruded tightly around the core to prevent it from wrinkling or twisting during movement.
2. Key Performance Characteristics
Minimum Bending Radius:A critical specification (e.g., 7.5 x cable diameter) that must not be exceeded to ensure cable longevity.
Cycle Life:Rated for a specific number of cycles (e.g., 5 million cycles) under defined conditions (bending radius, speed, load). This is the primary metric of quality.
Torsion Rating:Specified in rotations per meter (e.g., 180/m), indicating how much the cable can twist.
EMI Shielding:For data and signal conductors, effective shielding (often braided) is essential to maintain integrity in the electrically noisy environment of moving machinery.
3. Common Types
Control Cables:For transmitting signals and power to sensors and actuators.
Motor Power Cables:For supplying power to servo and spindle motors; have larger conductors.
Hybrid/Composite Cables:Combine power conductors, signal pairs for encoders, and sometimes even pneumatic tubes or fiber optics in a single jacket. This simplifies installation and reduces the number of cables in the chain.
Data Cables:Such as BUS cables (PROFIBUS, CANbus) or Ethernet cables (CAT5e, CAT6, CAT7) designed for continuous flex.
4. Applications
CNC Machine Tools
Industrial Robots (Articulated, Gantry, SCARA)
Automated Storage and Retrieval Systems (AS/RS)
Packaging and Printing Machinery
Laser Cutting Machines
Any equipment with moving parts requiring energy supply.
Port machinery cables are a specialized category of cables critical for the operation of modern container terminals. Installed in cable reels and festoon systems on massive, moving equipment, these cables are subject to a unique combination of mechanical, environmental, and electrical stresses that standard industrial cables cannot endure.
1.Core Design Challenges
The design addresses several extreme conditions:
Continuous Torsion:Cables on revolving cranes, such as the boom of a ship-to-shore crane, are subjected to continuous twisting (un-twisting and re-twisting) as the crane moves. The cable must be engineered for a specific torsion angle (e.g., 180/meter) without damaging internal conductors.
Flexing and Bending:Cables used in festoon systems for RTGs experience continuous bending cycles as the crane travels back and forth.
Harsh Environmental Conditions:Exposure to intense UV radiation, ozone (from electrical arcing), salt-laden air, moisture, and wide temperature swings (-25C to +70C) can rapidly degrade standard cable materials.
Mechanical Abuse:Potential for crushing, impact, and abrasion during operation and maintenance.
2. Key Design & Construction
Conductors:Extra-fine, high-flexibility copper strands are used. The stranding is optimized for torsion, often with a special lay length and direction to allow conductors to move relative to each other without breaking.
Insulation:Specialized elastomer materials likeTorsion-Optimized PVCorCross-Linked Polyethylene (XLPE)are used for their flexibility, durability, and resistance to cracking under stress.
Sheathing (Jacket):The outer jacket is the first line of defense. Materials likeChlorinated Polyethylene (CPE), Polyurethane (PUR), or specially formulatedPVCare chosen for their exceptional resistance to:
UV & Ozone:Prevents cracking and degradation.
Salt Water & Chemicals:Resists corrosion.
Abrasion & Tearing:Withstands physical wear and tear.
Cable Core Design:The internal components are often bundled with a slip layer (e.g., PTFE tape) to allow them to move during torsion, reducing internal stress. A central strain relief element may be included.
3. Common Types
Power Cables:For supplying high current to crane hoists, trolleys, and drives.
Control & Data Cables:For transmitting control signals to drives, PLCs, and feedback from encoders and sensors. Often include shielding (Foil + Braid) for EMI protection.
Hybrid/Composite Cables:Combine power, control, and data (e.g., fiber optics) conductors in a single cable to simplify installation and reduce weight on the cable reel.
Torsion-Specific Cables:Rated for a defined number of torsion cycles (e.g., 5, 000 cycles at 180/m) under specific load conditions.
4. Applications
Ship-to-Shore (STS) Cranes
Rubber-Tired Gantry (RTG) Cranes
Rail-Mounted Gantry (RMG) Cranes
Stacking Cranes and ASCs (Automated Stacking Cranes)
Container Handlers and Straddle Carriers
Additional Information:
Payment Terms : T/T
Elevator cables are critical components that ensure the safety, control, and functionality of modern elevator systems. They are subject to rigorous international standards due to their role in life-safety systems. The most dynamically stressed cable is theTraveling Cable(or "Travel Cable"), which forms a moving link between the elevator car and the fixed building infrastructure.
Engineered for Performance and Compliance:
Certified Safety:Our cables are rigorously tested and comply with international standards (EN, NFPA) for flame retardancy, low smoke emission, and halogen-free performance, crucial for modern building safety.
Maximum Flex Life:The ultra-flexible conductor design and robust yet elastic insulation materials are built to endure the millions of flex cycles required over the elevator's lifetime, preventing wire breakage and signal failure.
Integrated Strength Member:Every traveling cable features a central core of high-tensileAramid fiberthat safely supports the entire weight of the cable, eliminating stress on the electrical components.
Durable for the Hoistway Environment:The specially formulated jacket provides superior resistance to abrasion, oil, and mechanical impact, ensuring long-term reliability even in harsh conditions.
Applications
Passenger and Freight Elevators
Escalators and Moving Walks
Elevator Car Lighting and Ventilation
Control and Communication Systems (intercom, video)
Position Encoder Feedback Systems
Additional Information:
Payment Terms : T/T
A Sprial/Spring Cable is not a standard cable with a special jacket, but rather a standard cable that has undergone a post-forming process to impart its characteristic helical shape. This process involves heating the cable and winding it around a mandrel, then heat-setting the shape. This creates a product with unique mechanical properties tailored for dynamic applications.
1. Core Design Principle & Manufacturing
The cable's functionality stems from its pre-set mechanical memory.
Manufacturing Process:A completed flexible cable is wound under tension and heat around a cylindrical mandrel. The heat relaxes the polymer chains in the insulation and jacket materials. When cooled in this coiled state, the shape is "set" into the cable, giving it a natural tendency to return to this compact form.
Extension/Compression Cycle:When stretched, the coils open up. The internal conductors and insulation are specifically chosen for their ability to withstand this continuous bending and unbending without failure. When tension is released, the cable's mechanical memory causes it to retract to its original coiled length.
2. Key Performance Characteristics
Extension Ratio:This is a critical specification, typically ranging from1:2 to 1:4(e.g., a 1-meter coiled cable can extend to 3 or 4 meters). The ratio depends on the initial coil diameter and the cable's construction.
Cycle Life:Rated for a high number of extension/retraction cycles (often in the hundreds of thousands or millions), similar to a torsion cable.
Controlled Movement:The cable naturally retracts away from machinery and hangs neatly, preventing snagging, dragging, and damage.
Constant Force:It provides a consistent, gentle retraction force without the need for an external retraction mechanism.
3. Common Types
Power Spring Cables:For supplying power to moving devices (e.g., hand tools, pendants).
Data/Control Spring Cables:For transmitting signals and data (e.g., for sensors, USB connections). Often include shielding.
Air/Liquid Hose Spring Assemblies:The same principle applied to pneumatic or hydraulic hoses.
Hybrid Spring Cables:Combine power, control, and sometimes data/air in one spiral assembly.
4. Applications
Hand-held Equipment:Electric tools, test equipment, communication headsets.
Control Pendants:For cranes, machinery, and industrial robots.
Automated Machinery:For sensors, actuators, and moving parts with limited travel.
Charging Cables:For retractable charging stations.
Medical Equipment:For probes, lights, and devices requiring neat cable management.
Additional Information:
Payment Terms : T/T
Teflon cables have excellent corrosion resistance, resistance to oil, strong acids, strong alkalis, strong oxidants, microorganisms, and do not allow any fungal formation. They have excellent electrical insulation properties, low and almost frequency independent dielectric characteristics, high voltage resistance, low high-frequency loss, no moisture absorption, and a minimum water vapor permeability of less than 0.01% (about 0.18mgr/cm2 within 24 hours). They have high insulation resistance, are non flammable, self extinguishing, and flame retardant testing in accordance with DIN VDE 0482 Part 265-2-1/EN 50265-2-1/IEC60332-1 (equivalent to DIN VDE 04part72804 Test Method B). They do not contain harmful substances and comply with ROHS standards
Structure
Conductor:
Materials: Tin plated wire, silver plated wire, copper wire.
Structure: Multiple stranded copper wires ensure the flexibility of the cable.
Insulation layer:
Materials: FEP (fluorinated ethylene propylene copolymer), PTFE (polytetrafluoroethylene).
Function: Adopting a double sheath design of PTFE and silicone rubber.
Shielding layer (optional):
Structure: Aluminum foil wrapping+tin plated copper mesh (coverage density 85%).
Function: Effectively shield electromagnetic interference.
Outer sheath:
Materials: FEP (fluorinated ethylene propylene copolymer), PTFE (polytetrafluoroethylene).
Colors: red, yellow, black, blue, white, brown, green, yellow green.
Electrical parameters
Working voltage U/U0:
S0.75mm2300/500V
S1.0mm2450/750V
Test voltage:
S0.75mm22000V50Hz, 5Min
S1.0mm23000V50Hz5Min
Minimum insulation resistance at 70 C:
20M. Km
Mobile parameters
Bending radius:
Drag chain movement: 8 times the diameter of the cable
Temperature range for use
Drag chain movement: -60 to+200
selection suggestions
Select based on the bending radius:
Ensure that the minimum bending radius of the cable meets the requirements of the drag chain system.
Select based on load:
Power cables need to meet power requirements, while signal cables need to meet transmission requirements.
Select based on shielding requirements:
When interfering with the environment, choose cables with shielding layers.
Select based on environmental conditions:
Choose cables that are resistant to chemical corrosion in environments with oil stains, acid and alkali.
Select based on dynamic performance:
When frequently bent, choose cables with high flexibility and tensile strength.
Additional Information:
Payment Terms : T/T
Wind power cables are critical components in both onshore and offshore wind farms. They are subjected to a unique combination of mechanical, environmental, and electrical stresses that standard industrial cables cannot endure. Their design is optimized for reliability and longevity, minimizing maintenance in hard-to-access locations like the nacelle and tower.
1. Core Design Challenges
Torsional Stress:The most defining requirement. Cables inside the tower must twist and untwist as the nacelle yaws to face the wind. They are rated for thousands of torsion cycles (e.g., 180 to 360 per meter for 5, 000 cycles).
Flexing and Bending:Cables in the nacelle, especially those leading to the hub, experience continuous movement due to blade pitch adjustments and vibrations.
Harsh Environments:
Onshore:Wide temperature swings, UV exposure, ozone, and potential exposure to lubricants.
Offshore:Additionally, salt spray, high humidity, and potentially more aggressive chemicals require enhanced resistance.
Long Distance Power Transmission:Cables running down the tower must efficiently transmit medium-voltage power from the generator to the base with minimal losses.
2. Key Design & Construction
Conductors:Fine-stranded, highly flexible tinned copper conductors are standard. Tinning provides extra corrosion protection, crucial for offshore applications.
Insulation:Cross-linked materials are preferred for their durability and thermal stability.
XLPE (Cross-Linked Polyethylene):Excellent electrical properties and moisture resistance, commonly used for power conductors.
EPR (Ethylene Propylene Rubber):Superior flexibility and crack resistance, often used for control cables.
Jacket (Sheath):The jacket is critical for longevity. Common materials include:
Specialized PVC:Formulated for low-temperature flexibility and weather resistance.
Polyurethane (PUR):Offers exceptionalabrasion resistance, oil resistance, and cut-through strength.
Chlorinated Polyethylene (CPE) or Polychloroprene (Neoprene):Provide excellent overall weather, ozone, and oil resistance.
Torsion Optimized Construction:The internal components (conductors, insulation, fillers) are cabled together with a specific lay length and direction to allow them to move relative to each other during twisting without damage. A central strain relief element is often included.
3. Common Types
Low Voltage Power Cables:For power distribution within the nacelle (e.g., for motors, pumps).
Medium Voltage Power Cables:For transmitting power from the nacelle down the tower to the base. These are designed for higher voltages (e.g., 20kV, 35kV).
Control & Data Cables:For transmitting signals from sensors (e.g., anemometers, vibration sensors) and for pitch control systems. Often shielded (Foil + Braid) for EMI protection.
Hub Cables:Specifically designed for the extreme flexing required inside the spinning hub.
4. Applications
Onshore and Offshore Wind Turbines
Nacelle Internal Wiring
Tower Cables (Yaw Cables)
Blade Pitch Control Systems
Sensor and Monitoring Systems
Additional Information:
Payment Terms : T/T
Ray Yu (Shanghai JY Seres Cable Co. Limited), Shanghai, China
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