DNV Type Approved Anchor Winch for the Arctic Prowler

By Eric Haun
Wednesday, July 30, 2014
JK Fabrication’s DNV Type-Approved 40-30-3000 Anchor Winch

JK Fabrication has landed DNV certification for its 40-30-3000-DNV series Anchor Winch. Culminating a two-year process, JK’s C-series winch was at last awarded DNV Type Approval in March—the first time ever for an anchor winch in the U.S., the manufacturer said.

Conceived by JK’s founder, Jim Kreider, the anchor winch was installed aboard the F/V Arctic Prowler, a longliner recently built in Seattle. The winch accommodates 950 ft of 1 1/8” wire rope and a single shot (90 ft) of 1 3/16” Grade 2 stud-link chain, developing 33,400 lbs line pull bare drum, for an anchor weighing as much as 3,200 lbs. There is also an independent warping head with 16,000 lbs. line pull. Retrieval speeds are 23 FPM bare drum, and 50 FPM full-drum. Among many complications, DNV inspectors insisted on a very rigorous pull-test for Type Approval—and the test in fact inadvertently revealed an anchor winch far stronger than even Kreider had foreseen.

“We were told that the winch would have to withstand a 92,400-lb pull test against the positive dog mechanism. Imagine our surprise when the winch in fact withstood a 138,000-lb pull test, which parted the 1 1/8” wire but did not damage the winch,” Kreider said. “Naval architect Bruce Culver estimates the winch could withstand 230,000 lbs.”

The C-series winch has a variety of technical features that ensure a working lifetime of reliable use. There is double-gear reduction for the DT White hydraulic motor, and a three-position maximized-equipped Bi-Directional control valve that provides steady control for hauling and setting. A unique JK design feature is a common enclosed oil bath for chain, brake, hydraulic motor and clutch. Compact in design, the winch is just 39” high by 38” deep, with a width of 41” (64” with motor protrusion). Noting that the winch weighs in at just 3800 lbs, Kreider remarked, “Winch manufacturers today must achieve the same or better performance criteria, while capturing weight and footprint reduction on deck.”

“The Arctic Prowler order is a great honor, since the vessel as a whole has many state-of-the-art approaches that could well set the standard for new longliners in the years to come,” Kreider said. “Given that this is a first-ever DNV Type-Approved product, we fully expect to see other orders, including those outside the fishing industry.” JK said it has seen expansion into the workboat and government research fleet sectors, especially in the last decade.

Well-known among the Seattle-based fishing fleet working Alaska and the West Coast, JK Fabrication absorbed key staff and Intellectual Property from Nordic Machine in 2002. Thus JK’s arsenal of designs includes the entire Nordic Machinery line, long considered the state-of-the-art for a range of line haulers, utility winches, rollers and other deck machinery, some of them dating all the way back to the 1940s. JK now manufactures in galvanized and stainless steel, as well as aluminum for smaller boat applications, including yachts.

jkfabrication.com
 

Maritime Reporter August 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Syncrude Uncertain about Plant Fire Affecting Production

The operator of Canada's largest synthetic crude project said on Saturday it is investigating the causes of an early morning fire at an upgrading plant. Firefighters extinguished the blaze,

Hurricane Ignacio Gains Strength but Expected to Bypass Hawaii

Hurricane Ignacio intensified as it blew across the Pacific on a route likely to bypass Hawaii on Saturday, said the Central Pacific Hurricane Center of the National Weather Service.

United Heavy Lift Gears up for the Asian Boom

All set to expand its footprint in the South Asian market significantly, Hamburg based, United Heavy Lift (UHL) appointed strategically placed Lexicon Overseas Pvt Ltd.

Shipbuilding

MN 100: ContainerTug B.V.

The Company: ContainerTug B.V. is a specialized Dutch naval design engineering and construction company with a strong focus on developing workboats and the evaluation

Oman Drydock Company Expands Rapidly

Oman Drydock Company (ODC) is growing fast. In January, the yard hit an important milestone - its 300th drydocking. Harnessing the power of its new $1.8 billion, 1.

NASSCO Invests in Facilities, Equipment and People

General Dynamics NASSCO has invested several hundred million in capital projects as part of its efforts to increase efficiencies via  modular shipbuilding, including:

Workboats

MN 100: ContainerTug B.V.

The Company: ContainerTug B.V. is a specialized Dutch naval design engineering and construction company with a strong focus on developing workboats and the evaluation

MN 100: Bordelon Marine

The Company: Founded in 1979, Bordelon Marine is a leading provider of Marine Transportation services operating in the Gulf of Mexico and around the world. The

MN 100: Bouchard Transportation

The Company: Bouchard Transportation’s history dates back to its incorporation in 1918 by founder, Capt. Fred Bouchard, the youngest tugboat captain in the Port of New York.

News

Syncrude Uncertain about Plant Fire Affecting Production

The operator of Canada's largest synthetic crude project said on Saturday it is investigating the causes of an early morning fire at an upgrading plant. Firefighters extinguished the blaze,

Hurricane Ignacio Gains Strength but Expected to Bypass Hawaii

Hurricane Ignacio intensified as it blew across the Pacific on a route likely to bypass Hawaii on Saturday, said the Central Pacific Hurricane Center of the National Weather Service.

United Heavy Lift Gears up for the Asian Boom

All set to expand its footprint in the South Asian market significantly, Hamburg based, United Heavy Lift (UHL) appointed strategically placed Lexicon Overseas Pvt Ltd.

Marine Equipment

United Heavy Lift Gears up for the Asian Boom

All set to expand its footprint in the South Asian market significantly, Hamburg based, United Heavy Lift (UHL) appointed strategically placed Lexicon Overseas Pvt Ltd.

World’s Quickest Trip Through Northern Sea Route

Chinese sailor Guo Chuan intends to make it world’s quickest Northern Sea Route trip from Murmansk to the Bering Strait in 14 days without engine power. His

MN 100: ContainerTug B.V.

The Company: ContainerTug B.V. is a specialized Dutch naval design engineering and construction company with a strong focus on developing workboats and the evaluation

Classification Societies

ClassNK Verifies lino Marine Service GHG

Classification society ClassNK has carried out the independent third-party verification of Iino Marine Service’s greenhouse gas (GHG) emissions inventory based on a reasonable level of assurance.

ClassNK to Issue Guidance on Composite Propellers

Classification society ClassNK announced it will release the world’s first Guidelines on Composite Propellers (Part on Manufacturing/Product Inspection) on August 31.

IRS Opens Office in Abu Dhabi

Indian Register of Shipping (IRClass), a leading Classification Society, today announced it has opened offices in Abu Dhabi. Abu Dhabi is the second office

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Offshore Oil Pipelines Pod Propulsion Salvage 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: 0.5495 sec (2 req/sec)