Markey Engineers New A&R Winches for Offshore

Friday, April 15, 2011
(Photo: Markey Machinery)

Markey Machinery recently introduced its new line of Abandonment and Recovery (A&R) winches.  Development of Markey’s A&R winches was facilitated through partnership with a world-wide service provider operating a fleet of marine vessels. The manufacturer says that the A&R machines are more cost effective in operation and maintenance requirements, thus making them ideal for oil field services such as maintenance, repair, and decommissioning. 

Markey’s type DEPS-76AR (see illustration) is a single drum, direct-pull type winch with level wind designed to work 3,300m of 4.75-in. (120mm) diameter wire rope. Redundant vector-motors developing 1,750 hp (1,310 kW) turn the drum through an induction hardened helical transmission. AC-variable frequency drives produce retrieval speeds of 32 m/min. and enabling torque control down to zero speed.  Markey’s automatic Render/Recover controls is designed to tame peak loads while pulling in 450Tm- over cable weight. 

The logistical demands of offshore oil and gas service-provider’s operations produced distinctive features - beginning with this machine’s mechanical arrangement.  The form of the DEPS is single drum- direct pull style of winch. Traction heads, alternatively, require multiple sheaves to produce the same pulling force. Bending wire ropes produces uneven strand loading and internal friction leading to accelerated wear of expensive cables. The DEPS-76 is designed to maximize the working life of ropes. Service providers that couple properly engineered machinery with sound maintenance practices enhance on-site productivity realizing greater margins on each project. 

Markey engineers design with a 34:1 D:d ratio - substantially larger and easier on the wire rope than the 20:1 D:d ratio of traction winch systems. The automatic fairleader withstands the breaking force of 4.75-in. (120mm) diameter wire. The drum-fairlead system carefully lays each adjacent wrap-protecting the exterior strands of the wire rope from abrasion. Sizing the drum to store the full scope of wire in eight layers benefits the performance of the winch and minimizing wire point loading.  To make the machine more versatile, Markey’s engineers designed a field bolt-on wire rope kit to adapt DEPS-76 grooved drum cores and sheaves to different wire diameters- if needed.  This advanced A&R machine is optimized and custom for a single customer’s application and specifications.

www.markeymachinery.com

 

Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

New Products

Alu Design to Create Next Generation of Marine Chairs

There’s a new designer in the driving seat at Alu Design. Per Ivar Selvaag, the former Lead Designer at BMW Group and Chief Designer of Peugeot’s concept car division,

NMEA Awards Top Electronic Makers

Marine electronics experts named 11 products in nine categories as winners of the 2014 NMEA Product Awards. Once again, Furuno USA was named Manufacturer of the Year--Support.

Renewable Energy: Schottel Tidal Turbines Ready For Use

In the last months Schottel  successfully tested its hydrokinetic turbines in Strangford Lough, Northern Ireland. The full-scale tests included 260 operating hours under realistic conditions.

Offshore

Renewable Energy: Schottel Tidal Turbines Ready For Use

In the last months Schottel  successfully tested its hydrokinetic turbines in Strangford Lough, Northern Ireland. The full-scale tests included 260 operating hours under realistic conditions.

Total CEO Killed in Moscow Runway Accident

Private jet collided with snow plow during takeoff; Total's CEO a defender of Moscow policies. Insiders Boisseau and Pouyanne long seen as potential successors.

Statoil: New Oil in the Grane Area

Statoil has together with PL169 partners proved new oil resources in the D-structure in the vicinity of the Grane field in the North Sea.   Well 25/8-18 S, drilled by the rig Transocean Leader,

Deck Machinery

SOSI Delivers Mooring Winches; Completes Test Pad

Sound Ocean Systems, Inc. (SOSI) announced the delivery of two unique mooring winches, both tested on its newly constructed test pad at its primary manufacturing facility in Sultan, Wash.

Barge Master Installed on Walk-To-Work Vessel

On October 14 the Barge Master BM-T40 system motion-compensated knuckle boom crane pedestal was installed on the new Wagenborg Walk-to-Work vessel, designed and built by Royal Niestern Sander.

 
 
Maritime Standards Naval Architecture Navigation Offshore Oil Pipelines Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1569 sec (6 req/sec)