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

New Products

Claxton’s Camera Upgrade Puts Crane Safety in Focus

Claxton Engineering Services Ltd, an Acteon company, launched the latest version for its ATEX and safe-area crane boom cameras to improve operational safety through

Marine Toilet Features Simple Installation

The new straightforward design of Raritan's SeaEra QC toilet is engineered to ensure simple installation onboard a vessel. It also gives boat owners a choice of controls for maximum flexibility.

European Launch of SMS at Counter Terror Expo

Kelvin Hughes is delighted to announce that it will be displaying its new Single Mast Solution (SMS) at Counter Terror Expo 2014 from April 29-30. This will be

Offshore

GulfMark Offshore Records Highest Ever Q1 Revenue

Houston-based GulfMark Offshore President & CEO Quintin Kneen commented on his company's first quarter 2014 financial report: "We recorded our highest first quarter revenue ever,

Offshore Oil & Gas: Brazil’s Northern Frontier

In an effort to spread out oil and gas production to other parts of the country and increase overall oil production, Brazil has finally intensified hydrocarbon

Safety the Focus as Heavy Lifting Picks Up

Modern heavy lift capabilities are crucial for safe, efficient operations offshore Heavy lift operations offshore are an awe-inspiring feat, but an operation that

Deck Machinery

Claxton’s Camera Upgrade Puts Crane Safety in Focus

Claxton Engineering Services Ltd, an Acteon company, launched the latest version for its ATEX and safe-area crane boom cameras to improve operational safety through

Safety the Focus as Heavy Lifting Picks Up

Modern heavy lift capabilities are crucial for safe, efficient operations offshore Heavy lift operations offshore are an awe-inspiring feat, but an operation that

Time Charter of DP-1 Research Vessel Fixed

Marcon International, Inc. of Coupeville, Washington reported that Stabbert Maritime of Seattle has time chartered the U.S. flag, DP-1, research vessel Ocean Pioneer (ex: Seabulk Montana,

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Offshore Oil Pod Propulsion Salvage Ship Electronics Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | 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: 0.1065 sec (9 req/sec)