Sea and Land Technologies · Value Added Services

SALT
FABRICATED
WINCH SYSTEMS

Custom tow handling solutions engineered for marine survey operations — built for reliability, operational safety, and repeatable performance under demanding offshore conditions.

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30+
Years Experience
6+
Sensor Types
100%
Custom Built
APAC
Regional Coverage
Overview

RELIABLE DEPLOYMENT FOR TOWED SENSORS

Sea and Land Technologies (SALT) designs and fabricates robust winch systems for the deployment and recovery of towed marine survey equipment. Built for offshore, coastal, and inland survey applications, SALT winches support safe handling of side scan sonars, magnetometers, sub-bottom profilers, towfish, and integrated sensor arrays.

SALT winch systems are engineered for reliability, operational safety, and repeatable survey performance under demanding marine conditions — from open ocean geophysical surveys to nearshore dredging support and environmental monitoring.

Each system is fabricated to client specifications, integrating seamlessly into existing vessel setups or purpose-designed survey platforms.

Custom Fabrication
To Client Specifications
Marine Grade
Corrosion-Resistant Construction
Applications & Equipment

SUPPORTED APPLICATIONS

SALT winches are designed to support a broad range of marine survey and operational disciplines, compatible with major survey sensor categories.

Supported Applications

  • Hydrographic surveys
  • Geophysical surveys
  • Dredging support
  • Pipeline and cable route surveys
  • Search and recovery
  • Environmental monitoring
  • Naval and security operations

Compatible Equipment

  • Side Scan Sonars
  • Marine Magnetometers
  • Sub-bottom Profilers
  • Tow Cameras
  • Combined sensor arrays
  • Towed environmental packages
Key Features

ENGINEERED FOR THE FIELD

Every SALT winch is built from the ground up to meet project-specific requirements, with engineering options that cover power, control, and structural integration.

01
Custom Fabrication
Each system is purpose-built to client specifications — drum dimensions, cable capacity, power requirements, and structural interfaces designed around your specific survey mission.
02
Drive Options
Electric or hydraulic drive configurations available to match vessel power systems. Variable speed control for precision deployment and retrieval across varying sea states.
03
Mounting Designs
Portable skid-mounted or fixed deck-mounted configurations. Systems integrate with A-frame or davit arrangements for safe overboard deployment.
04
Cable Monitoring
Integrated cable payout counter and tension monitoring for real-time operational feedback, ensuring consistent tow depth and protecting valuable survey sensors.
05
Slip Ring Integration
Electrical slip ring integration enables continuous power and data transfer through rotating drum assemblies, supporting powered towfish and sensor interface cables.
06
Safety Systems
Emergency stop and manual override built into every unit. Marine-grade corrosion-resistant construction for long-term offshore reliability in harsh environments.
Operational Advantages

PERFORMANCE BENEFITS

A well-engineered tow handling system is the difference between consistent, high-quality survey data and costly reacquisition. SALT winches deliver measurable operational improvements.

Improved Tow Stability
Consistent cable tension and controlled payout result in a stable sensor attitude throughout the survey pass, directly improving data quality.
Better Data Consistency
Repeatable tow geometry between survey lines and between projects enables accurate comparisons and reduces uncertainty in survey deliverables.
Reduced Mobilisation Time
Purpose-built systems integrate directly with vessel infrastructure and known sensor interfaces, cutting setup and rigging time at the start of each survey.
Safer Operations
Engineered deployment and retrieval reduces manual handling load and minimises risk of cable damage, sensor loss, and personnel injury.
Lower Cable Wear
Smooth spooling geometry and configurable fleet angle control extend cable service life and protect armoured and Kevlar cable from accelerated wear.
Reduced Operational Risk
Emergency stop, tension monitoring, and manual override systems provide multiple layers of operational control to prevent equipment damage and survey data loss.
Typical Use Cases

BUILT FOR FIELD PERFORMANCE

Designed around your survey mission — SALT winch systems have been deployed across the full range of marine sensor tow applications.

Side Scan Sonar
Seabed Imaging & Object Detection
Stable tow handling for seabed imaging, object detection, wreck surveys, and search and recovery operations. Consistent altitude maintenance for full swath coverage.
Marine Magnetometry
Ferrous Target & UXO Surveys
Consistent tow geometry for ferrous target detection, unexploded ordnance surveys, cable and pipeline route clearance, and archaeological reconnaissance.
Sub-bottom Profiling
Shallow Geophysics & Sediment Studies
Controlled tow depth for shallow geophysics, sediment layer investigation, route corridor studies, and near-surface hazard assessment.
Configuration Options

SPECIFY YOUR SYSTEM

SALT winch systems are configurable across a broad range of parameters to match vessel type, sensor requirements, and operational context. Contact SALT to discuss project-specific requirements.

Custom Drum Capacities Armoured Cable Compatible Kevlar Cable Compatible Manual Spooling Powered Spooling Portable Trailer Systems Containerised Systems Remote Control Operation Data Cable Integration Power Cable Integration Sensor-Specific Interfaces A-Frame Integration Davit Integration Deck-Mounted Skid-Mounted Electric Drive Hydraulic Drive Variable Speed Control
Why SALT

FIELD EXPERIENCE IN EVERY BUILD

SALT combines decades of field experience in hydrography, geophysics, and marine instrumentation to deliver practical winch systems that integrate smoothly into survey operations.

Unlike generic lifting equipment, SALT fabricated systems are designed by people who understand survey workflows — the practical requirements of cable management, sensor protection, and vessel integration that only come from operating these systems in the field.

Each system is fabricated to support efficient deployment while protecting valuable tow sensors and maximising data quality across the full range of offshore and coastal operating environments.

"Each system is fabricated to support efficient deployment while protecting valuable tow sensors and maximising data quality."
30+
Years of combined experience in hydrographic and geophysical marine survey operations across Asia Pacific and beyond.
7+
Survey disciplines supported — from hydrography and sub-bottom profiling to magnetometry, dredging support, and naval operations.
100%
Custom fabrication — no off-the-shelf compromises. Every system is specified and built to the mission requirements of the end user.
Get In Touch

REQUEST A QUOTE

Whether you need a standard tow winch, a fully integrated containerised system, or a bespoke solution for a specific sensor — SALT can help. Submit your email and we'll be in touch to discuss your requirements.

Or contact us directly at sea-landtech.com/contact-us