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Features of Deck Machinery
Deck Machinery
Product Description

Hydraulic windlass

Hydraulic windlass

Yoowon Industries Co. Ltd, has been manufacturing, through the development of its own advanced technology, several types of deck machinery for decades. Along with the development of our ship building technology, we have been constantly improving and producing deck machine designed to provide reliability and low maintenance at a low cost. 

Accordingly we can guarantee our products with high quality and stability. For our customers, continually we will make an effort and we will research and develop to make more quality products.

Electric ordinary typewindlass, Electric independent type windlass

Simple operation, High safety.

While hydraulic pressure source maintained by electric motor or another prime mover, continuous variable speed operation can be performed by means of a single changing operation lever.

Economical produced, Maintenance expenses

It’s very economical owing to high pressure which reduces a great extent of piping material and oil consumption while electric-power is utilized efficiently.

Light weight, Small size, Good efficiency.

Smaller and lighter machinery rather than conventional tow force drive machinery improves the ships capability while high pressure raises the efficiency.

Convertible use of hydraulic pump.

The oil hydraulic pump used for a cargo winch can serve for a windlass and for a mooring winch by the operation of the change-over valve. As a result, lower cost of vessels can be attained.

Safety in cargo handling.

Operation of the machines can be instantly stopped by automatic action of the hydraulic brake even in the case of sudden stoppage of electricity during cargo handling, or pipe breakage and other accidental trouble. In such case simple sliding operation can be available in handling cargo. All unite are protected by safety devices which avoid overload to rating load.

Example ) in case of one-boom

The oil delivered from pump drives to the hydraulic winch (Cargo winch) through the remote control valve stand and then, reaches the second winch (Topping winch) through the control valve stand, a new drives to the third winch (Guy winch) through the control valve stand and returns to the pump through the oil-cooler and the strainer, this called a sales system. The manual change-over valve (three-way valve) can introduce the oil delivered from the pump to the windlass or mooring winch.

General Information

YOOWON Deck Machineries
WindlassMany types are
Up to 44 Tons
To see
standard model
(Nomally Φ22-
95 chain)
WinchFor cargoUp to 10 Tons
For operation
Up to 100 Tons
Stock winchMany types are
Windlass winch
Towing winch
Up to 60 Tons
Brake capacity
Many types are
availble To see
standard model
Up to 20 Tons
Remarks : If desired, every above machine can confirm many from foreign standard and soecification as well as KS standard. Examples of foreign standard are KR, NK, LR, DNV, ABS, GL, BV, etc.
Standard materials
Rope drum : SS400
Warping drum : SC450
Chain drum : SC450
Shaft : S45C
Bed & Frame : SS400
Gear, Pinion : SC480 , S45C
Metal bearing : BC3 or LBC3

Standard spares
Brake lining : 1 set for each size
Grease nipple : 5 pieces
Seak kit : 1 set for Hydr, pump & Motor
Grease gun : 1 unit
Special tools : Maker standard

Standard painting
Rust-proof painting : 2 coats
Finishing painting : 1 coat ( Munsell 2.5G 7/2)

unless otherwise specified


When making inquires or order, please specify the following informations.


ship No.


Tonnage : DWT / GWT

Classification society

Electric Supply sources

AC V,3ø, Hz


Chain dia & Grade

Joining Shackle type

Anchor weight

Distance between center line of

two chain drum Hawer drum rope


Hawer drum capacity


Drum rope capacity

Winch Structure

Number of drums

Use of clutches or Warping ends

Special Requirements

Hydraulic pump nuit


Variable pump with axial tapered piston rotary group of bent axis design, for hydraulic drives. Output flow is proportional to drive speed and pump capacity is steplessly variable between maximun capacity and zero.

P.Vg = Constant = W.V

P = Operating pressure.

Vg = Pump flow

W = Operation load

V = Rope speed

The constant power controls the output volume of the pump in relation to the operation pressure so that, at any constant drive speed, the preset drive power is no exceeded.