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Umbilical winch, 3 kN line pull (Technical supply specification)


1. General Information (Operating Conditions)

The umbilical winch operates reliably in marine environments under the following conditions:

  • Climate category OM1 according to GOST 15150-69 at ambient air temperatures from -30 °C to +40 °C and relative humidity of 98% at +35 °C.

Storage and transportation conditions: category Zh1 according to GOST 15150-69 at ambient air temperatures from -40 °C to +50 °C.

The umbilical winch maintains its performance characteristics under the following operational conditions:

  • Continuous heel and trim of not less than 5° without time limit.
  • Simultaneous exposure to ship heave with an amplitude of not less than ±1.0 m and a period of 10 s, ship roll with an amplitude of not less than ±5° and a period of 10 s, and ship pitch with an amplitude of not less than ±2.5° and a period of 8 s.
  • Wind speed of not less than 10 m/s.
  • Mechanical environmental factors corresponding to group M3 according to GOST 30631-99.

The umbilical winch maintains its performance characteristics after survival exposure to:

  • Continuous heel and trim of not less than 30° without time limit.
  • Simultaneous exposure to ship heave with an amplitude of not less than ±5.0 m and a period of 15 s, ship roll with an amplitude of not less than ±30° and a period of 15 s, and ship pitch with an amplitude of not less than ±15° and a period of 12 s.
  • Wind speed of not less than 35 m/s.
  • Mechanical environmental factors corresponding to groups M25 and M32 according to GOST 30631-99.
  • Heavy icing conditions.

2. Purpose

The umbilical winch is designed for:

  • Generating line pull to ensure recovery of the umbilical/tether cable with the attached load.
  • Storing the umbilical/tether cable spooled on the drum.
  • Hauling-in (recovering) the umbilical/tether cable onto the drum in tightly packed, multi-layer wraps with minimal clearance under external tension.
  • Paying-out (slackening) the umbilical/tether cable from the drum overboard under external tension.

During drum rotation and standstill, the umbilical winch provides:

  • Electric power transmission from an external (vessel) source to the umbilical/tether cable and further to the underwater vehicle.
  • Transmission of electrical and optical data signals between the underwater vehicle and its control console via the umbilical/tether cable.
Umbilical Winch 3 kN Line Pull – General Arrangement Drawing (Side View)
Umbilical Winch 3 kN Line Pull – General Arrangement Drawing (Side View)

About

Umbilical Winches: Innovation in Subsea Technologies

Modern marine and subsea operations require reliable equipment for handling cable systems. The umbilical winch is a key component for efficient umbilical management, ensuring operational safety and reliability during subsea payload handling.

Operational Efficiency and Functionality

The equipment ensures precise control of cable systems, optimizing spooling and paying-out processes. The engineered design provides smooth operation and precise cable positioning, which is critical in dynamic offshore environments.

Role in Subsea Communications

In addition to mechanical handling, the umbilical winch facilitates the transmission of power, electrical, and optical data signals between subsea vehicles and control units. This makes the equipment essential for subsea research, monitoring, and offshore industrial applications.

Safety and Reliability

Modern models are equipped with systems that minimize the risk of cable damage and ensure stable operation under heavy duty cycles. These solutions reduce operational costs and minimize maintenance downtime.

Manufacturer Expertise and Quality

Izhora Hydrosystems LLC designs and manufactures advanced umbilical winches. Our engineering expertise and commitment to quality control deliver equipment that combines reliability, durability, and operational efficiency.

Application Across Industries

These winches are utilized in maritime and subsea sectors, as well as in power generation, telecommunications, and scientific research. This versatility makes the umbilical winch a crucial asset for organizations requiring safe and precise cable system management.


3. Scope of Supply

3.1. Umbilical Winch

3.1.1 Equipment Composition

ComponentQuantity
Winch frame (skid)1
Drum with rotation lock1
Electric drum drive (electric motor, gearbox, brake, control system)1 set
Active drum support1
Passive drum support1
Electrical equipment system (distribution board, control console, 2 floodlights, internal cabling, 50 m external power cable)1 set
Spooling device (carriage with guide rollers, diamond screw, carriage guide, spooling drive, disconnect clutch with handwheel, support set)1 set
Electrical and data slip ring assembly (slip ring unit, stationary junction box, drum junction box, 50 m deck cable, 1200 m umbilical/tether cable)1 set
Cable cleatsAs required
Protective guard set1 set
Rigging hardware set (shackles and lifting eyes)1 set
4-leg chain sling1
Canvas cover1
Spare parts, tools, and accessories (SPTA) kit1
Umbilical Winch 3 kN Line Pull – General Arrangement Drawing (Front View)
Umbilical Winch 3 kN Line Pull – General Arrangement Drawing (Front View)

3.1.2 Main Parameters

ParameterValue
Drive typeVariable frequency drive (VFD) electric motor
Rated line pullLayer 1: 4.8 kN; Layer 5: 3.7 kN; Layer 9: 3.0 kN
Umbilical recovery speed at Layer 5Up to 1 m/s
Drum capacity1,220 m of umbilical cable (9 layers)
Power supply parameters3-phase / 50 Hz / 380 V
Electric motor power5.5 kW
Umbilical cable diameter20 to 32 mm
Electromagnetic brake holding force at Layer 94.5 kN
Climate categoryGOST 15150-69 – OM1
Estimated weight (excluding umbilical cable)3,300 kg
Dimensions (LxWxH)1,970 x 3,100 x 2,083 mm

3.1.3 SPTA Kit

Standard manufacturer SPTA kit for 1 year of operation — 1 set.

3.1.4 Documentation

DocumentQuantity
Technical passport or log book1
User manual1
Operation manuals for outsourced components1
Test program and procedure1
SPTA list1

3.1.5 Certificates

The umbilical winch is supplied with an RMRS (Russian Maritime Register of Shipping) certificate according to form 6.5.30.

Umbilical Winch 3 kN Line Pull
Umbilical Winch 3 kN Line Pull – General Arrangement Drawing (Rear View)

4. Additional Requirements

4.1. General Additional Requirements

  • All electrical equipment is designed for open deck installation and features an IP56 protection class.
  • All materials are resistant to operational ambient temperatures ranging from -40 °C to +50 °C.
  • Coating system: the coating system specification and color shall be subject to the Customer’s approval.

4.2. Ergonomic Requirements

  • The layout of control interfaces and instrument displays of the umbilical winch complies with the requirements of GOST 12.2.033-78 and GOST 12.2.061-81.
  • All control interfaces are mounted on the local control panel (LCP) of the machinery.
  • Displays for all measuring instruments and indicators used during equipment operation are integrated into the local control panel (LCP) of the unit.

4.3. Design Requirements

  • Winch Frame Requirements:
  • The winch frame (skid) is designed to facilitate lifting of the winch by a 4-leg sling using the four top corner lifting eyes without a spreader bar.
  • The frame withstands the load from the umbilical cable line pull developed at the maximum braking torque of the drum drive brake on the top layer winding at the most unfavorable cable fleeting angle without sustaining damage.
  • Openings in the frame on top, port and starboard sides, and at the forward and aft ends are covered with removable grates featuring a mesh size of 45 ± 5 mm. Only the openings for umbilical payout/recovery and for access to the local control console and distribution board remain uncovered by grates.
  • The top grate is rated to withstand a load equivalent to the weight of two persons.
  • The structural strength of the deck-mounting interfaces and the interlocking connections between individual components complies with the requirements of ND No. 2-030101-008 (Guidelines for the Development of Cargo Securing Manuals).
  • The drum is equipped with securing arrangements for the dead end of the umbilical cable, designed to withstand the pull force at the maximum braking torque of the drum drive brake when the umbilical is fully paid out.

4.4. Design Requirements for the Electric Drum Drive

  • The electric drum drive ensures smooth starting of the drive motor.
  • The electric drive provides stepless speed control of the drum rotation from zero to maximum across the entire operating load range.
  • The electric drive is reversible.
  • Air cooling of the drive supports continuous duty cycles and frequent start-stop operations with forced dynamic braking under full load.
  • When the drum rotation speed is set to zero, rotation is automatically locked by the drive brake.
  • In recovery mode, if the umbilical cable tension exceeds a preset value, the drive automatically switches to braking mode; when the tension decreases, it automatically returns to the previously set rotation mode.
  • The maximum braking torque developed by the drive brake is not less than 3.2 kN·m (equivalent to a line pull on the top layer of not less than 4.5 kN). The brake response time is 0.5 s or less.

4.5. Design Requirements for the Electrical Equipment System

  • The machinery is powered by a 3-phase, 3-wire AC grid: 400 V, 50 Hz, without neutral.
  • The front panel of the distribution board features status indicators for 400 V external incoming power, as well as 400 V and 230 V busbar live status.
  • The distribution board incorporates residual current protection devices (RCDs / automatic circuit breakers) for its internal 400 V and 230 V circuits, configured to trip at a leakage current of 30 mA or higher.
  • The distribution board includes an external power supply main isolator switch.
  • The distribution board integrates a running hours meter for the umbilical winch.
  • The control console is housed in a separate standalone enclosure.
  • The control console is supplied strictly with extra-low safety voltage.
  • The control console features an integrated local workstation light.
  • The distribution board and control console are located on the starboard side (SB) of the equipment.
  • The control console is a portable type equipped with a 10 m umbilical/tether communication cable.

4.6. Design Requirements for the Spooling Device

  • The spooling carriage features an automatic lubrication system.
  • The spooling device is mechanically driven from the umbilical winch drum. The drive ratio can be adjusted by replacing its drive components. The carriage pitch adjustment increment per drum revolution is 0.5 mm.
  • The spooling drive incorporates a disconnect clutch for manual carriage position adjustment.
  • The design of the cable guide assembly on the carriage prevents accidental displacement of the umbilical cable from the guide mechanism under all operational conditions.
  • The opening in the spooling guide assembly for umbilical cable routing is equipped with guide rollers on all sides.
Umbilical Winch 3 kN Line Pull – Isometric View
Umbilical Winch 3 kN Line Pull – Isometric View

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