Marine Link
Wednesday, September 22, 2021

Winch

A winch is a mechanism used to reel in, to let out, or otherwise adjust the tension of a rope, wire, or cable. Boats and ships make use of multiple winches to handle halyards, sheets, as well as anchor or mooring lines. The basic mechanism consists of a spool or winch drum to wind in and store the line. The line can be manipulated by something as simple as a hand crank, but larger winches may incorporate gear assemblies and are powered by electric, hydraulic, pneumatic, or internal combustion drives. Some use a mechanical or a solenoid brake to control the line; occasionally a ratchet and pawl setup prevents the spooled line from unwinding. Some types of winches, commonly referred to as "self-tailing", make use of a "stripper" or cleat to maintain the proper level of tension on the line.

In larger forms, winches form the mechanical base of tow trucks, steam shovels, cranes, and elevators. Outside of their marine and industrial uses, winches are used to tow all kinds of vehicles. Planetary winches and worm gear winches are two winch types currently in use for this purpose. Planetary winches are commonly found on the front of road vehicles such as trucks and SUVs. They have a fast line speed, but should be restricted to light duty. A worm gear winch is designed to have a slower, consistent pull in order to hold a heavy load. These types of winches are usually seen on car hauling trailers, and larger work trucks.

Tags: Winch

(Photo: All American Marine)

AAM Launches 50’ Research Vessel for NOAA

Boatbuilder All American Marine (AAM) said it has launched a new 50-foot research…

(Photo: Nichols Brothers Boat Builders)

Nichols Brothers Delivers Fourth Tug to Foss

Nichols Brothers Boat Builders (NBBB) said it has delivered the final vessel in a…

(Image: VARD)

VARD to Build World's Largest Superyacht

Norwegian shipbuilding and design group VARD announced it has secured a contract…

Foss' Leisa Florence ASD-90 tugboat, sister vessel to Rachael Allen (Photo: Foss Maritime)

Foss to Operate Autonomous Harbor Tug

Foss Maritime’s newest vessel will be the first U.S.-flag harbor tug to integrate…

Combined windlass-mooring winch (Image: MacGregor)

MacGregor Launches New Range of Winches

Marine and offshore equipment manufacturer MacGregor introduced its next generation…

JonRie Marine Winches debuted its new Series 525 Double Drum Bow Winch designed for a 6,770 HP ASD.

TECH FILE: JonRie Debuts New Double Drum Bow Winch

JonRie Marine Winches debuted its new Series 525 Double Drum Bow Winch designed for a 6,770 HP ASD.

(Image: Crowley)

Crowley Designs US' First Fully Electric Autonomous Tug

Crowley Engineering Services announced Monday it has designed the first fully electric U.S.

The enhanced winch control provides a safe, efficient and reliable way of deploying water sampling equipment at depths up to 5,000 meters in even the roughest sea conditions. Photo courtesy ABB

Tech File: Enhanced Active Heave Winch Control

Hawboldt Industries installed an ABB winch drive with in-built active heave compensation…

(Photo: MacGregor)

MacGregor Wins Order for 36 Traction Winch Systems

MacGregor, part of Cargotec, has secured an order from SIA Solutions LLC to deliver…

(Photo: Robert Allan Ltd.)

New Tug Built for Port of Shanghai

China's Sanlin Shipyard has built and delivered a new harbor tug for the Port of…

Svitzer North (Photo: bert Allan Ltd.)

New Tug Delivered to Svitzer Australia

Svitzer Australia recently took delivery of a new RAstar 3000-W series ASD tug, Svitzer North…

Chartwell Marine selected to design and specify build for new low emission university research vessel, in collaboration with BAE Systems and Derecktor Shipyards. Image: Chartwell

Derecktor Wins Deal to Build Hybrid RVl for University of Vermont

The University of Vermont (UVM) has ordered what is touted as the first hybrid research vessel…

Related Articles

Ship Electronics

Electronic devices classed for use in the marine environment. All electronics used onboard must be designed to fit in the small confines of a bridge and can come in contact with salt water, so they are made to be very water resistant or waterproof.

Sonar

Sonar is a technique that uses sound to navigate, communicate with or detect other vessels, and to observe the distance and velocity of underwater objects. The acoustic frequencies used vary from extremely low (infrasonic) to very high (ultrasonic).

Winch

A winch is a mechanism used to reel in, to let out, or otherwise adjust the tension of a rope, wire, or cable. Boats and ships make use of multiple winches to handle halyards, sheets, as well as anchor or mooring lines. The basic mechanism consists…

Shipbuilding / Vessel Construction

Shipbuilding is the construction of ships, which takes place in a specialized facility known as a shipyard. Shipbuilders, also called shipwrights, are workers which specialize in vessel construction and repair. The construction of boats is called boat building.
Maritime Reporter E-News subscription

Maritime Reporter E-News is the maritime industry's largest circulation and most authoritative ENews Service, delivered to your Email five times per week

Subscribe for Maritime Reporter E-News