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Towing winch, 150t line pull (Technical supply specification)


1. General (Environmental Conditions)

The towing winch is designed for operation under the following marine environmental conditions:

  • Design ambient air temperature (summer): +45 °C at 80% relative humidity
  • Design ambient air temperature (winter): -35 °C at 85% relative humidity, wind speed up to 25 m/s
  • Seawater temperature: from -2 °C to +32 °C
  • Vessel vibration
  • Periodic seawater washing/splashing
  • Permanent/dynamic list (port/starboard): up to 5° inclusive
  • Permanent/dynamic trim (bow/stern): up to 2° inclusive

2. Purpose

The towing winch is designed for towing operations, including holding, paying out (rendering), and hauling in the towing wire.

150t line pull towing winch – side view outline drawing
150t line pull towing winch – side view outline drawing

About

Heavy-Duty Solutions for Marine Operations

Marine operations demand equipment engineered for efficient wire rope management and optimized crew operations. The towing winch provides precise holding, paying out, and hauling in functions, ensuring safety and operational control during complex maneuvers. The system optimizes task execution time and minimizes manual labor, which is critical in high-traffic maritime environments. Modern winch designs focus on long-term reliability and extended service life on board.

Functions and Application

The primary function of the towing winch is to support vessel and cargo towing operations by optimizing wire handling and reducing workload on personnel. The system ensures accurate tension control, safe hauling/paying out sequences, and stability across various marine applications. This versatility makes the equipment an essential multi-purpose asset on board. The winch integrates high functionality, ease of operation, and structural reliability for demanding maritime tasks.

Control and Monitoring

Modern winches are engineered to prioritize crew safety and operational efficiency. Integrated features such as remote control, wire tension monitoring, emergency stop functions, and quick drum release ensure intuitive operation. These systems mitigate the risk of operator error and improve crew response times. Furthermore, the winch design provides ergonomic access to control interfaces, ensuring safe operation even under harsh environmental conditions.

Manufacturing and Quality Assurance

Izhora Hydrosystems LLC manufactures reliable, heavy-duty towing winches designed in compliance with current maritime industry standards. Each unit undergoes rigorous quality control and is delivered with a comprehensive documentation package for operation and maintenance. This ensures clients receive a fully integrated turnkey solution that interfaces seamlessly with the vessel’s control system. The company focuses on every engineering detail to guarantee stable performance and operational safety.

Durability and Structural Integrity

Heavy-duty materials and robust construction allow the towing winch to withstand intensive operations and maintain full functionality over an extended service life. Engineered specifically for harsh marine environments, the design ensures structural reliability and stability during heavy-lift and complex maneuvers. This high load capacity and wear resistance make the equipment an essential asset on board, while precise wire control and safe maneuvering capabilities maximize crew efficiency. Consequently, the winch serves as a versatile and reliable system for any vessel type.


3. Scope of Supply

3.1 150t Line Pull Towing Winch

3.1.1 Bill of Materials

ComponentQty
Hydraulic towing winch on skid1
Electrical equipment for HPU, skid-mounted (IP44)1
Hydraulic Power Unit (HPU)1
Remote control panel for wheelhouse console integration (IP22)1
Tethered remote control pendant (IP56)1
150t line pull towing winch – top view outline drawing
150t line pull towing winch – top view outline drawing

3.1.2 Main Parameters

ParameterValue
Drive typeHydraulic
Dimensions (L × W × H)5195 × 5210 × 3000 mm
Rated line pull, min. (1st layer)1500 kN
Rated line pull, min. (8th layer)837 kN
Rated hauling speed, min. (1st layer)0.080 m/s
Rated hauling speed, min. (8th layer)0.143 m/s
Wire capacity1200 m (8 layers)
Rated hydraulic system pressure25 MPa
Rated flow470 l/min
HPU electric motor power2 × 110 kW
Wire rope typeSteel wire rope to GOST 7669-80, diameter 72 mm, min. breaking load 3125 kN
Wire rope length1200 m
Brake holding load (1st layer)1875 kN
Estimated winch weight (excluding wire rope)38000 kg
Estimated HPU weight (including hydraulic fluid)8500 kg
Winch electrical power supplyMain vessel grid (3-phase AC 380 V, 50 Hz)
Optional / AdditionalIntegrated load monitoring system (load cells)

3.1.3 Spare Parts Kit (Spare Parts, Tools and Accessories)

Manufacturer standard kit for 1 year of operation — 1 set.

3.1.4 Documentation

DocumentQty
Technical Passport1
Installation and Operation Manual1
List of Spare Parts, Tools and Accessories1
Factory Acceptance Test (FAT) Report1
Shipboard Testing Program and Procedure1

3.1.5 Certificates

RMRS Certificate (RS Form 6.5.30) — 1 copy.


4. Additional Requirements

The drum, gearbox, and spooling device are mounted on a common skid.

The towing winch is designed for installation on the vessel foundation via bolted connection.

All electrical equipment is provided with grounding bolts and cable entry glands.

The local and remote control stations feature the following functionality:

  • Tension and paid-out length indication
  • Hauling and paying-out speed control
  • Brake control
  • Emergency stop
  • Emergency towing wire release
  • Quick drum release

The winch mechanism, tethered remote control pendant with plug-in connectors and standard cable, and the junction box with a receptacle for remote pendant connection are rated IP56.


5. Manufacturer

Izhora Hydrosystems LLC


6. Warranty Period

12 months from the date of shipment, unless otherwise specified in the contract.


Contacts

Phone: +7 (812) 339-61-68

Email: contact@i-hydro.tech