Winching solution with 4 hydraulic winches 12 000 daN bi-speed and their electro-hydraulic power unit

Winching solution with 4 hydraulic winches 12 000 daN bi-speed and their electro-hydraulic power unit

Description

Background

The customer is a company specialized in underwater works, piling and dredging, dikes and protection works construction, dock construction, trade jetties and marinas, the STARTER teams have designed a hydraulic winching solution composed of a set of 4 winches with a capacity of 12 tons each with their hydraulic unit attached and intended for underwater construction.

 

Objectives

Design, implementation and integration of a hydraulic winching solution composed of 4 winches and a hydraulic power system delivering a pulling capacity of more than 80 000 daN.

 

Challenges

Choosing a seamless bolted construction to finalize the entire project within 10 weeks. The set has been tested with its actual configuration on the barge at STARTER premices with workshops to simulate actual conditions of use.

 

STARTER solution

The four ARGOS hydraulic winches are special anchor-hauling winches to be installed on a barge. Two winches are identical and the other 2 are symmetrical. The hydraulic control unit can operate 4 winches simultaneously.
The plant is placed on a welded structure in steel with marine protection SA 2.5 + 1 primer zinc + 2 polyurethane layers (total 300 microns thick) serving as chassis and retention tank.

 

Result

Equipment in service since 2nd semester 2014.

 

Techniques specifications of the hydraulic winching solution

Application : Pulling
Effort : 10 000 daN in 1st layer.
5 442 daN in 5th layer.
Speed : Slow at 62 l / mn for 100% of effort : 12-22 m / mn.
Fast at 62 l / mn for 10% of effort : 48-88 m / mn.
Length : 100 m with Ø 40 mm on 5 layers or Ø 22 mm wire rope.
Power Station : 75 kW – 200L /min – 270 bar.

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