Underwater Vehicle Umbilical Cable Winch Solution|Critical Equipment in Shore-Based Testing Systems
------KLD Kelude Underwater Equipment Testing Cable Management Engineering Case Study

In the field of marine equipment R&D,the testing,commissioning,and performance verification of remotely operated vehicles(ROVs)and autonomous underwater vehicles(AUVs)rely heavily on stable and reliable umbilical cable management systems.Addressing common challenges during testing---such as tangling,wear,and uneven stress distribution caused by frequent cable deployment and retrieval---KLD customized an underwater vehicle testing umbilical cable winch system for a defense contractor.
Installed on a shore-based test platform,this equipment focuses on stable umbilical cable deployment/retraction and intelligent management.This article systematically analyzes the project's design philosophy and key technical solutions from an engineering application perspective,exploring how customized winch systems enhance the safety and reliability of marine equipment testing.
I.Project Background and Core Challenges
With the advancement of marine engineering technology,the application of underwater vehicles continues to expand in the following fields:
Marine resource exploration
Subsea pipeline inspection
Military underwater reconnaissance
Underwater engineering construction
Marine scientific research
During testing phases,UAVs typically connect to shore-based control systems via umbilical cables to achieve:
Real-time video transmission
Control signal transfer
Power supply
Data communication
However,traditional cable management methods face significant challenges during actual testing:
1️⃣Complex cable structure
UAV umbilical cables often feature multiple diameter sections:
Thinner front section(communications/signals)
Thicker rear section(power supply/structural reinforcement)
Using standard winches often leads to:
Uneven cable stacking
Tangled cable arrangement
Unreliable deployment/retrieval
2️⃣Demanding outdoor environmental protection
Equipment is typically installed on coastal shore platforms,enduring prolonged exposure to:
Sea winds
Salt spray
Humid conditions
Rainwater washdown
Standard industrial equipment struggles to maintain long-term stable operation.
3️⃣Requires stable,controllable deployment speed
During submersible testing,cable deployment speed must remain constant to prevent:
Excessive instantaneous cable tension
Equipment vibration
Signal interruptions
4️⃣Extremely stringent safety requirements
Military testing equipment must possess:
High reliability
High security classification
Long-term stable operation capability
Therefore,the customer requested a dedicated custom umbilical cable winch system.
II.Core Technical Requirements
Through operational analysis and technical discussions,the customer specified the following key requirements:
1️⃣Equipment must support simultaneous management of umbilical cables with varying diameters
2️⃣Reels must feature a zoned structure
3️⃣Drive system requires stability,low noise,and adjustable speed
4️⃣The entire system must meet high protection ratings
5️⃣The electrical control system must be waterproof and dustproof
6️⃣The equipment structure must resist marine environmental corrosion
7️⃣Retrieval and deployment processes must be smooth and reliable
Based on these requirements,the KLD team designed a customized cable winch system.
III.Customized Solution

For submersible testing scenarios,KLD's engineering team developed a shore-based umbilical winch system specifically for testing.Core design features include:
1.Segmented Drum Structure
The equipment employs a dual-zone drum design:
Small Drum Zone:For winding small-diameter cable sections
Large Drum Zone:For winding large-diameter main cables
This design effectively addresses:
Cable tangling due to mixed diameters
Uneven cable tension distribution
Low winding efficiency
While significantly improving cable management efficiency.
2.Motor-Chain Drive System
The equipment employs a linear reduction motor drive structure:
Drive flow:Motor→Reduction gearbox→Drive chain→Drum
This structure offers the following advantages:
High transmission efficiency
Simple and reliable structure
Easy maintenance
Stable torque output
Particularly suitable for test equipment requiring long-term stable operation.
3.Variable Frequency Speed Control System
The equipment utilizes a variable frequency drive to control motor operation,enabling:
Adjustable winding/unwinding speeds
Smooth start/stop transitions
Reduced shock loads
Extended equipment lifespan
During submersible testing,speeds can be flexibly adjusted according to varying test conditions.
4.High-Protection Electrical System
To withstand coastal environments,the electrical system has undergone comprehensive upgrades:
Stainless steel distribution box
IP56 protection rating
Features:
Waterproof
Dustproof
Corrosion-resistant
Ensures stable electrical system operation in harsh conditions.
IV.Core Technical Parameters
Based on the project design,key parameters of this umbilical winch are as follows:

| Parameter | Specification |
| Model | 10KN |
| Rated Pull Force | 10 kN |
| Drum Width | 21 mm |
| Cable Length Capacity | 410 m+174 m |
| Motor Power | 7.5 kW |
| Drum Rotation Speed | 6.3 rpm |
| Average Line Speed | 8–16 m/min(adjustable) |
| Net Weight | 1400 kg |
| Dimension A | 1500 mm |
| Dimension B | 1500 mm |
| Dimension C | 1922 mm |
Through parametric design,the equipment can be rapidly customized to meet diverse project requirements.
V.Design Highlights
1️⃣Dual-Drum Zone Structure:Supports zoned winding of cables with different diameters,enhancing cable management efficiency.
2️⃣High-Efficiency Motor Drive:Utilizes K-series geared motors for stable operation and low noise.
3️⃣High-Protection Electrical System:Stainless steel control cabinet+IP56 protection rating.

4️⃣Stainless Steel Protective Structure:External stainless steel guard covers for gear motors.
Advantages:
Waterproof
Dustproof
Corrosion-resistant
Suitable for marine environments.
VI.Application Scenarios
This umbilical cable winch system is widely used in:
Marine equipment testing
Underwater vehicle testing
ROV test platforms
Military R&D
Underwater equipment testing systems
Underwater communication system trials
Offshore engineering
Marine exploration equipment testing
Subsea equipment commissioning
Test platforms
Pool testing
Sea trial platforms
VII.Project Value and Summary
Through this project,KLD successfully delivered a stable and reliable submersible testing umbilical cable management system to the client.
The project achieved the following values:
✔Resolved cable retrieval/deployment challenges for varying diameters
✔Enhanced submersible testing efficiency
✔Enhanced cable management safety
✔Met marine environmental requirements
✔Achieved stable,controllable cable deployment
This system is not only suitable for military testing platforms but also provides a reliable technical foundation for future marine equipment R&D.
With the advancement of marine engineering equipment,intelligent cable management devices will become a critical component of underwater equipment testing systems.
VIII.Frequently Asked Questions(FAQ)
Q1:Does KLD's umbilical cable winch support customization?
Yes.
KLD's cable winch equipment supports multiple customization options,including:
Drum size
Cable length
Retrieval/deployment speed
Control method
Protection rating
Our engineering team will design solutions based on actual operating conditions.
Q2:Can this equipment manage two cables of different diameters simultaneously?
Yes.
This model features a dual-zone drum design:
Small drum for thin cables
Large drum for thick cables
Effectively preventing tangling and confusion.
Q3:What is the equipment's protection rating?
The electrical system uses an IP56-rated stainless steel distribution box,offering:
Dustproof
Waterproof
Suitable for coastal,port,and similar environments.
Q4:Is the cable retrieval/retraction speed adjustable?
Yes.
The equipment employs a variable frequency drive to control motor operation,enabling:
Smooth start-up
Stepless speed adjustment
Precise control of retrieval/retraction speed
Q5:Does KLD provide technical support?
Yes.
KLD offers comprehensive technical services:
Model selection support
Operating condition analysis
Customized design
Installation guidance
After-sales technical support
Ensuring long-term stable operation of the equipment.