North Sea Winches Delivers World Class Quality!

North Sea Winches Delivers World Class Quality!

Another bespoke project manufactured in house, to meet client specifications and in line with ship systems. This project really was a pleasure to be involved with. The scope involved one 56 Tonne Towing Winch (GM-2000), one 48 Tonne General Hydraulic Winch (CWS-300) and a Dual 75kw Electro Hydraulic Power Unit (EHPU).

 Here are some of the key performance figures for the package:

GM-2000 56Te Tow Winch

High displacement

  • 54 tonnes on 1st layer, 870mm mean diameter
  • 35 tonnes at 7th layer, 1350mm mean diameter
  • 14 metres/min max on 1st layer
  • 21.5 metres/min max on 7th layer
  • Render mode (cross-line relief) 10-50 tonnes first layer

Low displacement

  • 27 tonnes on 1st layer, 870mm mean diameter
  • 17.5 tonnes at 7th layer, 1350mm mean diameter
  • 28 metres/min max on 1st layer
  • 43 metres/min max on 7th layer
     
  • Brake rated 56 tonnes static force on 1st layer
  • Capacity for 1200 metres of 40mm diameter rope in 7 layers
  • Hydraulic requirement 370 litres/min, 280 bar

CWS-300 Hydraulic Winch

  • 48 tonnes on 1st layer, 748mm mean diameter
  • 29 tonnes on 10th layer, 1252mm mean diameter
  • 16 metres/min max on 1st layer
  • 28 metres/min max on 10th layer
  • Single speed Hydraulic Motor
  • Brake rated 50 tonnes static force on 1st layer
  • Capacity for 1200 metres of 28mm diameter rope in 10 layers
  • Hydraulic requirement 370 litres/min, 290 bar

EHPU to power CWS-300, GM-2000, A-Frame and Umbilical Winch 

  • Fabricated within a ISO 10ft Container with standard lifting points and forklift pockets. End (opposite doors) to be louvred.
  • Extractor fan fitted through upper side at door end
  • Electrical supply 380V/3ph/50hz or  440V/3ph/60Hz
  • Tank assy including:-1600 litre Stainless steel oil reservoir
    Suction filters
    Return filter
    4-off stop taps with closed position switches
    Level switches for low level and stop level
    4-off temperature switches – heater on (5°C), heater off (10°C), high oil temp (50°C), stop temp (60°C)
    Oil heater EC6-001 rated 4 kw
    Suction filters, return diffusers, level gauge, filler/breather cap.
  • 2 x Electric motor rated 75kW with IP56 protection. Set supply to 415V/3ph/50hz to run at 1475 RPM
  • 2 x axial piston type pump (Kawasaki K3LV-140 ) with load sensing + pressure cut-off + horsepower limiting control, through drive to auxiliary pump, flexibly coupled to the above motor. Set main pumps to 130 cc/rev
  • 2 x boost pumps on through drives from main pumps
  • Water cooled heat exchanger
  • Water supply ball valve
  • 2 x charge pressure relief valve
  • Winch control valve with 4-off control sections 24Vdc
  • Local control box with protection to IP56
  • Star-delta type motor starters
  • 24V dc stabilised supply to winch control unit
  • Winch control unit
  • 3 x variable speed forward/reverse control levers to operate main control valve
    Towing winch
    Grapple winch
    Umbilical winch
  • 2 x variable speed forward/reverse control levers to operate the A-frame control valves. These are customers existing valves, fitted with Parker D1VW004CNJW91 proportional control valves rated 24V, 1.29A
  • Towing winch high/low speed selector buttons with indicator lamps
  • Brake pressure indicator
  • Automatic brake release synchronised to main directional control

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