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Powerful Pulling with Markey's New Winch
01 Oct 2007
Seattle USA based Markey Machinery has completed of the first winch for the current series of tugs under construction at Nichols Brothers Shipyard. This Electric Hawser Winch, designated the DEPCF-52, is installed on the Crowley chartered tug 'Valor', which is on charter from Baydelta Maritime.
Newly designed for the ship escort market, this model incorporates all the features proven on the Markey type DEPCF-48 Render/Recover winch, as well as important enhancements. Its larger sized drum now makes it possible to carry 750 foot long by 10 inch hawsers. Increasing the electric drive motor from 50 to 75hp enables the tug’s operator to call upon higher line pulls and speeds when needed.
The DEPCF-52 Electric Hawser Winch is a single drum, deck mounted machine with integral, automatic level wind and Markey pioneered Render/Recover controls. The controls allow the operator to adjust the render-recovery automatic operations up to the full rated line speed of 378 ft/min and tension of 46,227 pounds, and monitor line tension through the large back lit liquid crystal display. Customer specifications call for a variable frequency winch controller and 460vac / 3 phase / 60 hertz input power. Drum brakes are rated for over 600,000 pounds of holding capacity.
Now celebrating 100 years in the business, Markey manufactured 'Hell-for-Stout' machinery is found on vessels operated by Bender, Bollinger, VT Halter, Dakota Creek, Nichols built vessels operated by Moran Towing, Crowley, Foss, and Tidewater among others.
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